Low-voltage electrical industry "Twelve Five" development plan

1. The overall thinking of the guiding ideology: Taking Deng Xiaoping Theory and the important thinking of the “Three Represents” as guidance, fully implement the scientific concept of development, keep track of foreign advanced technology and product development, and lead the industry to promote independent innovation as a central link in transforming development methods. Products are intelligent, communicable, networked, highly reliable, and environmentally friendly. Constantly develop low-voltage electrical products with China's independent intellectual property rights, low-voltage electrical related technology to keep up with the world's development trend. Main tasks: objectively analyze the impact of external development environment changes, accurately grasp the current industry development trends, target the development of key industry enterprises, and study and put forward the overall goals and ideas for the development of the “Twelfth Five-Year Plan” for the hot issues and key issues in the development of the industry. Key tasks. And for the characteristics of the industry, propose measures. Make it a guide to guide the development of the low-voltage electrical appliance industry in the next five years.

2. Development Strategy and Development Goal of the “Twelfth Five-Year Plan” Industry Development Strategy To seize the opportunities brought by the smart grid construction to the development of low-voltage electrical appliances, comprehensively improve the overall performance of smart appliances, and promote the development of new generation products in China, so that China’s low-voltage The electric appliance further develops into high-performance, miniaturization, high reliability, intelligence, networking, energy conservation, and environmental protection. In the direction of the development of new technologies and new products for low-voltage electrical appliances, it will accelerate the pace of development in the world to meet the needs of the smart grid and the new The energy system and the rapid development of the national economy have new requirements for low-voltage electrical appliances. Promote the technical progress of the electrical industry and improve the market competitiveness of enterprises.

2.2 Development goals and content:

The “12th Five-Year Plan” period is an important period of strategic opportunities for China’s economic and social development, and also a key period for China’s comprehensive construction of a well-off society. Smart grids, low-voltage electrical appliances and systems, and new energy systems are used to ensure national electricity safety and ensure reliable information systems. Running to support the sound and rapid economic and social development has an important role.

·Recommend smart grid user-side and national key labs for smart appliances R&D; research smart grid user-end key technologies;

· Develop intelligent power distribution and control systems with bus capabilities;

· Develop key low-voltage power distribution and control system reliability and energy-saving key technologies;

Development of control technology, control strategies and protection technologies for megawatt-class double-fed wind power converters, realization of localization of converters for megawatt-class wind turbines, research on new energy control and grid-connected technologies;

Development of computer and microelectronics technology development and application; electronic, intelligent, communications remote control technology; modular technology and related products;

· Develop environmental protection and pollution-free products and materials applications. Environmental protection and pollution-free products;

2.2.1 Overall Development Goals Complete the research and development tasks of the fourth generation low-voltage electrical main products in China, and start the new generation of products to the market; At the same time, complete the new technology research and new product research and development of the main components of the smart grid client, and deploy the smart grid. Smart appliances in electrical systems have been fully applied; in-depth research and development of distributed new energy control and protection systems and complementary products.

The total sales volume of medium and high-end low-voltage electrical appliances, including the third-generation and third-generation secondary development and fourth-generation products, has reached about 70% of the total sales volume of the low-voltage electrical appliance industry. The overall level of low-voltage electrical appliances in China has been significantly improved, and the development of new technologies and new products keeps pace with the world's development trends.

Comprehensively improve the independent innovation capability of the low-voltage electrical appliance industry, fundamentally free from the new product development model with imitation as the main model.

The completion of the construction of smart grid user terminals and smart electrical national key laboratories, and the establishment of a smart electrical public service platform for the entire industry.

2.2.2 Specific Targets and Tasks 2.2.2.1 Develop a new generation of integrated intelligent control and protection appliances that integrate control, protection, and communication functions, with small size, strong integrity, high reliability and energy saving Features. Investigate the rational layout of small-sized integrated products, improve reliability and electromagnetic compatibility, create a “mainboard type” structure, and rationally arrange high-current contact arc extinguishing systems, high-speed breaking operation mechanisms, energy-saving electromagnetic systems, and intelligent control systems to achieve high performance , high reliability and electromagnetic compatibility requirements.

2.2.2.2 Develop a high-reliability intelligent power distribution system with full current range selectivity, including the development of a new generation of intelligent universal circuit breakers with electric power compensation, high-speed breaking intelligent molded case circuit breakers and selective Home circuit breakers and so on.

2.2.2.3 Develop intelligent energy-saving AC contactors. The electromagnetic system adopts an intelligent energy-saving electromagnetic mechanism. It has new breakthroughs in operational reliability, lifespan, and energy consumption. The energy efficiency class has met at least the national standard for energy efficiency of AC contactors. Level 2 requirements. The modular structure design was studied so that the structure type, protection characteristics, and installation methods were assembled to meet the requirements of the combined control and protection of electrical appliances.

2.2.2.4 To develop a megawatt double-fed wind turbine Generator converter with low-voltage ride-through module and limited power scheduling function, aiming at improving the reliability of the converter and control system, and constructing the wind turbine generator The research and development platform for key common technologies, research on control technology, control strategies and protection technology for megawatt-class double-fed wind power converters, and the formation of double-fed wind power converters and control systems and control software with independent intellectual property rights. The foundation for the localization of the megawatt-class double-fed wind turbine generator converters.

2.2.2.5 Grasping the opportunity for the nation to build smart grids, conducting key technologies for smart appliances and their systems, and finally building intelligent control, two-way communications, two-way billing, regional interlocking, load monitoring, and fault early warning. Functions such as distributed energy access, which can effectively manage and control the power and flow of the entire network, provide a user-side intelligent power distribution network, greatly improving energy efficiency and accelerating the promotion and application of new energy.

2.2.2.6 Through research on SPD application technology, over-current protection technology, and arc extinguishing technology, develop surge protection product series with independent intellectual property rights and cooperation technologies. The major technical indicators and functions of the products have reached the current international advanced level.

2.2.2.7 Completion of smart grid client and national key laboratory for smart appliances R&D. The establishment of a public service platform for low-voltage electrical appliances and smart appliances for the whole industry will be established to serve the development of the low-voltage electrical appliance industry in China in line with the development of smart grids.

2.2.3 New Product Development Direction 2.2.3.1 Smart Grid End-User Equipment Technology Development Direction:

Reliability technology is valued;

· Efficient and energy-saving technologies have been developed;

·Research on a new generation of smart appliances and systems adapted to the access of renewable energy continues to increase;

· Universal application of power monitoring and information technology and further development of security technology;

· Two-way interactive new consumption patterns;

Different types of power supply compatibility and access;

· Intelligent building multi-system compatibility and integration;

· Safe, economical and personalized use of electricity.

2.2.3.2 The development trend of intelligent universal breakers with high reliability distribution system:

· Double break point contact arc extinguishing system with electric power compensation.

High-power energy storage operating mechanism.

· Regional interlocking technology, intelligent control technology.

· Use internal bus to connect multiple function modules.

· Miniaturization, high performance, high reliability, regional interlocking, and diversification of control functions.

2.2.3.3 High-speed breaking intelligent plastic shell circuit breaker development direction:

• Research on a new rotary double break point contact arc extinguishing system.

·Achieve high-speed breaking, improve the breaking capacity and mechanical electrical life requirements.

· The short circuit breaking capacity is improved and the electrical life reaches the international advanced level.

·Small size, low cost, high reliability electronic controller for small and medium capacity circuit breakers.

· Reduce the cost difference with the thermal magnetic release.

2.2.3.4 Development direction of intelligent energy-saving AC contactor:

· Research energy-saving control technology, so that the energy requirements of the contactor meet at least the requirements of the latest national standards for energy efficiency grade 2.

·Optimize the structure of the electromagnetic system, arc extinguishing system and accessories configuration.

· Reduced in size and weight, the volume and weight of the same capacity product are reduced by about 20% compared to the previous generation product.

Research on the application of communication technology in contactors to achieve two-way communication between contactors and monitoring computers.

· Research environmental protection, safe and reliable new materials, and achieve full plasticization.

2.2.3.5 New Generation Automatic Transfer Switch Development Direction:

· The key technologies and innovations of the automatic transfer switching device are the reliability design and structural innovation of the conversion operating mechanism, arc extinguishing system, and controller.

• Study technology to prevent re-ignition and secondary breakdown of the arc when switching between two power supplies.

· Study the structural layout and mechanical interlocking technology of manual transfer switch and automatic transfer switch in bypass type products.

• Study the pre-storage operating mechanism to increase the closing force of the contacts and thus improve the ability to withstand short-circuit currents.

· Has strong anti-electromagnetic interference capability, especially the ability to resist harmonic interference, ensuring the continuity of the power supply system power supply.

2.2.3.6 New Generation Integrated Intelligent Control and Protection Appliance Development Direction:

• Study the rational layout of small-sized integrated products to improve reliability and electromagnetic compatibility.

· Original "board type" structure.

· Reasonably layout large-current contact arc extinguishing system, high-speed breaking operation mechanism, energy-saving electromagnetic system and intelligent control system.

Realize high performance, high reliability and electromagnetic compatibility requirements.

• Using fast fault current judgment technology and high-speed breaking technology of the operating mechanism, the short-circuit fault is cut off within 2ms to 3ms to reduce the impact of the short-circuit current on the equipment and system.

2.2.3.7 Selective protection of the development direction of household circuit breakers:

· Adopt a new double circuit circuit structure.

• Miniaturization of home-use selective circuit breakers.

· To achieve selective protection of household circuit breakers.

2.2.3.8 Development Direction of New Generation SPD:

·Research over-current protection technology;

· Research on the selective technique of over-current protection elements at the upper and lower levels;

Study the effects of power frequency and high frequency current on different components;

· Research the use of air pressure and air flow arc extinguishing technology;

· Research technology test technology;

· The main technical indicators and functions of the product have reached the current international advanced level.
2.2.3.9 Development direction of key technologies of double-fed wind turbine generators:

• Research converter modular topology.

Research on high-power power device driver and protection technology.

Research converter grid-connected control technology.

• Study of controllable dispatching techniques fed into the grid power.

• Research on low voltage ride-through technology for wind turbines.

· Research field bus data acquisition and monitoring technology.

2.2.3.10 The main research directions of the laboratory:

·Study on the technology of intelligent electrical appliances and its system simulation ·Study on the rule of high current breaking arc movement ·Research on the control technology and grid-connected control technology of new energy (wind power generation and photovoltaic power generation) ·Reliability and electromagnetic compatibility of smart appliances ·Intelligent distribution Research of electrical system integration technology ·Research of overvoltage protection technology ·Research of rapid prototyping technology 3.Key areas of industry development and scientific and technological research projects 3.1 Key areas and scientific and technological research projects 3.1.1 Key technologies of smart grid power distribution system. Intelligent distribution system network architecture and network optimization; intelligent distribution, control system integration and system solutions; coordination and cooperation of various types of smart electrical appliances; how to select and how to coordinate the performance of various types of smart appliances in the same system; Fault isolation, automatic restoration of power supply in non-faulty areas, rapid power grid recovery and self-healing, etc.

3.1.2 Study on the New Demand for Low-voltage Electrical Appliances in Smart Grid Distribution. Including distribution system operation status and power quality monitoring; fault early warning technology; energy management technology; intelligent internal fault self-diagnosis and service life management.

3.1.3 Research on new technologies and new products for over-current and over-voltage protection in intelligent power distribution systems.

3.1.4 New Energy System Control, Protection and Access System Study.

3.1.5 Research on high performance, miniaturization, high reliability, energy saving and environmental protection of smart appliances.

3.1.6 During the “Twelfth Five-Year Plan” period, the key directions and key areas for standardization development: intelligent, energy-saving, communicable technologies; fieldbus technology and related standards, software; new low-voltage electrical appliances for new energy applications; smart grids Customer-side supporting low-voltage electrical appliances.

3.2 Standardization Development Direction 3.2.1 Actively adopt international standards to comprehensively upgrade the standardization of low-voltage electrical appliances in China.

The adopted national standards have generally reached the international average level. The Standards Committee timely tracked and digested the IEC standards of its counterparts, strengthened the national standard system revision work, combined the national standards with China's actual conditions, and could really guide and evaluate various products in the low-voltage electrical appliance industry.

Adoption target:

---Overall target: By 2015, we can adopt the IEC standard published before 2013.

———Phase objectives: By 2012, we can adopt the IEC standard published before 2010.

3.2.2 Strengthen the research and development of independent innovation products and upgrade the level of technical standards.

The development goals during the 12th Five-Year Plan period:

--- Product standards for intelligent, communicable electrical products, and the standard level objectives strive to achieve the international general level.

-- Formulate a series of technical standards applicable to the smart grid user terminal --- Formulate low-voltage electrical product standards suitable for new energy fields (wind energy, solar energy, etc.)

3.2.3 Substantive participation in international standardization work We have participated in 17B/WG2, WG3 Working Group, SC23E/WG1, WG2 Working Group, SC32B/MT8 Working Group, SC37A/WG5 Working Group, and SMB/SG4 Working Group. During the “Twelfth Five-Year Plan” period, we will continue to actively express our opinions in the process of drafting and formulating international standards. We will further deepen the drafting and formulation of international standards, strengthen the follow-up research on international standards, and expand our counterparts in IEC. Impact on the technical committee.

3.2.4 Research and Analysis of Low-voltage Electrical Appliance Emulation Technology 4. Industry Development Countermeasures and Suggestions Based on the actual development of the industry, the following recommendations are made: 4.1 Industry structure adjustment. Now there are more than 2,000 manufacturers in the low-voltage electrical appliance industry in China. The average sales of each company is less than 16 million yuan. Therefore, the status of current industry enterprises is not ideal. According to current experts, relevant experts believe that in the “Twelfth Five-Year Plan” period, China’s low-voltage electrical industry should maintain 200-300 medium-to-large-scale enterprises more reasonable. To this end, each company must first correctly address its own development goals. Large-scale enterprises with stronger capabilities should strive to develop into comprehensive power transmission and distribution group companies; key enterprises with better conditions should develop into specialized manufacturers of low-voltage electrical appliances with major varieties and specifications relatively complete; small and medium-sized enterprises with certain expertise can It has developed into a special low-voltage electrical specialization production enterprise or an accessory and accessory specialization production enterprise; and most of the general enterprises should consider industrial structure adjustment and asset reorganization. At the same time, we must continue to develop new products with independent property rights, characteristics, standards, and markets. It is also a high starting point for technological transformation. This is the main sign of the company's development potential. The focus will be placed on key process equipment, on-line inspection technology and automatic inspection lines, assembly technology and automatic assembly lines for the company's leading products. It is recommended that government departments formulate certain measures to speed up the survival of the fittest, set up corresponding thresholds, and eliminate a batch of workshop-type enterprises to ensure the quality level of low-voltage electrical products.

4.2 product structure adjustment. With the global economic integration, foreign companies are optimistic about China's low-voltage electrical market, coupled with labor costs and Other factors, many well-known manufacturers of low-voltage electrical manufacturing base is being transferred to China, which brought pressure to the low-voltage electrical industry, but also brought opportunity. Looking at the entire industry, only high-end products or differentiated products and enterprises with independent intellectual property rights are relatively few. Technology and production equipment are also relatively backward. Most companies only maintain homogenization and low-level repetitive production, which directly leads to fierce competition. price competition. In addition, there are many products of the three generations of low-voltage electrical appliances produced in the industry that cannot meet the requirements of environmental protection directives. To this end, measures should be taken actively to prompt the product's various indicators to reach the instructional requirements as soon as possible. In the development of new products, we must consider from the beginning of product design, material selection, manufacturing process in line with EU directives, so that low-voltage electrical appliances really develop into "green, environmental protection, low-carbon" appliances. Therefore, it is recommended that the government introduce some policies to encourage domestic enterprises to target foreign companies, and actively develop high-end products without breaking new intellectual property rights, distinctive, level, and market-oriented new products. The share of high-end products produced by domestic companies has been increasing.

4.3 Increase investment in R&D and speed up the manufacturing of low-voltage electrical appliances. China's low-voltage electrical products and foreign products in the gap in the level of manufacturing technology is very large, "Twelve Five" period, China's low-voltage electrical products will focus on the pursuit of high standards gradually tend to pursue high-quality, high reliability, beautiful appearance. At the same time, increase investment in R&D, including design, technology, equipment, materials, design methods, etc., in order to shorten the distance with foreign countries, which will require raising the level of manufacturing equipment and manufacturing technology in our country. Therefore, it is recommended that the state increase the technical transformation of the low-voltage electrical industry, accelerate the research and development of low-voltage electrical equipment, speed up the introduction and development of testing equipment and automatic online detection technology, and at the same time increase the manufacturing technology of foreign counterparts (including Advanced technology) communication. The products of low-voltage electrical appliances in China are characterized by high quality, high reliability and beautiful appearance to improve the product's grade.

4.4 Accelerate product replacement and new product development. According to the current situation of the low-voltage electrical industry, we propose a new generation of intelligent automatic switchgear, intelligent energy-saving AC contactor, a new generation of integrated intelligent control and protection appliances, high-reliability power distribution system intelligent universal circuit breaker High-speed breaking intelligent molded case circuit breakers, selective protection of household circuit breakers, intelligent energy-saving AC contactors, key technologies of double-fed wind power converters, new-generation SPDs, smart grid end-user equipment technologies, etc. The 12th Five-Year Plan for Major Power Equipment. We hope to receive strong support from the national government, so that the overall low-voltage electrical industry in China will reach the international advanced level as soon as possible.

4.5 Government policy tilt and support. Most of the low-voltage electrical appliances industry in China is a small and medium-sized enterprise. In order to enable SMEs to further create a favorable environment for development, ease the financing difficulties of SMEs, increase financial and taxation support for SMEs, accelerate the technological progress and structural adjustment of SMEs, and support SMEs. To develop markets, etc., it is recommended that the State improve the policies and legal systems of small and medium-sized enterprises, improve relevant systems for government procurement and support for small and medium-sized enterprises, strengthen the protection of the rights and interests of small and medium-sized enterprises, support the financial policies for the development of small and medium-sized enterprises, and expand the financing channels and credit guarantee systems for small and medium-sized enterprises. Increased financial and financial support, tax incentives, support for SMEs in improving technological innovation capabilities, product quality, and accelerating technological transformation need to be further strengthened so that SMEs can achieve sustained and healthy development, thus promoting the development of low-voltage electrical appliances in China. To achieve rapid development.