Polaris Transmission and Distribution Network News: Find answers to the perplexity of reality from the years of sedimentation, and collect "eggs" for the current story in the corner of history. In 2018, the transmission and distribution equipment industry is full of opportunities and challenges.

With the continuous construction of major projects such as power transmission from west to east, cross-regional networking, and smart grids, as well as the adjustment of the energy structure of the power industry, the integration of a large number of new energy sources has brought new growth points in the power transmission and distribution equipment market.

In addition, in the five years since the “Belt and Road” initiative was put forward, more and more Chinese companies have stepped out of the country, made their debut on the world stage, and made famous brands “Made in China”. The intelligent upgrade of traditional power transmission and distribution equipment brings development opportunities to the power transmission and distribution equipment industry.

Time cannot speak, only action will be remembered. In 2019, we will meet even greater challenges and tasks.

Looking back, we are extremely proud; looking ahead, we are full of confidence. Those fireworks that have bloomed in the long history of the electrical industry will eventually get a positive response. Looking back on 2018, let us work together and march towards a new year.

Transmission and distribution equipment accelerates green upgrade

The service life of power transmission and distribution equipment is generally 10-15 years. China began to introduce outdoor power transmission and distribution and control equipment in the 1990s. After decades of development, the power transmission and distribution equipment will enter a renewal cycle and product upgrades. Demand is strong.

The implementation of the national grid distribution automation and rural grid transformation work has driven rapid development in the field of transmission and distribution equipment, and has also driven huge demand in the market for transmission and distribution equipment.

In fact, there are many electrical manufacturing enterprises in China's power transmission and distribution industry. From the initial monopoly of only a few foreign brands to the flourishing development of a hundred flowers. Due to the intensification of domestic competition, the domestic market has also moved from decentralized to relatively concentrated, and equipment manufacturers have entered a fierce competition stage, which has also put forward higher requirements for the technical innovation of China's transmission and distribution equipment.

On the one hand, power transmission and distribution equipment companies have increased their R & D efforts in the field of new energy-saving transformers and amorphous alloy transformers, and promoted the market space for energy-saving transformers through product upgrades and technological innovation. On the other hand, as a very important strategic industry in China, the switchgear industry has gradually realized the domestic production of environmentally friendly gas. Power transmission and distribution equipment practice green environmental protection and strengthen high-end innovation will become the "new engine" for the development of energy interconnection.

In recent years, power transmission and distribution equipment has made rapid progress in the direction of environmental protection. The development model has been continuously innovated, the service area has been continuously expanded, the technical level has been greatly improved, and some equipment has reached the international leading level. It is understood that the output value of environmental protection equipment manufacturing industry is much higher than before. From the perspective of the industry's own development, the current environmentally friendly manufacturing in the field of transmission and distribution equipment is transitioning from a high-speed growth to a new stage of sustained and stable growth. The traditional market is saturated and the emerging market is gradually expanding.

At the same time, innovation capabilities do not force the green development of the manufacturing industry of transmission and distribution, low-end homogeneous product competition is still serious, and the difficulties in the application and promotion of advanced technology and equipment are still outstanding, which is still far from the current requirements for green development. There is still a need to promote the application of demonstration projects such as the Internet of Energy, multi-energy complementarity, new energy microgrids, and energy storage to foster new growth points and form new kinetic energy.

Energy interconnection calls for high-end equipment

While accelerating the green upgrade of transmission and distribution equipment to meet the energy interconnection, energy interconnection also puts forward new requirements for the transmission and distribution equipment manufacturing. The realization of energy interconnection places higher demands on the manufacture of high-end transmission and distribution equipment. The first includes the need for large-capacity, ultra-long-distance power transmission; the clean energy system, low-carbon, and high-efficiency requirements; and the need for global collaborative operations.

In recent years, with the implementation of smart grid and new energy micro-grid demonstration projects, the traditional equipment manufacturing market has gradually opened, which will inevitably promote the innovation capability of the power transmission and distribution manufacturing industry and increase the innovative production capacity of high-end equipment.

In the interconnection project, the transnational and transcontinental networking channel must first solve the problem of cross-sea power transmission. At present, the transmission capacity of ultra-high pressure submarine cables is between 2 and 2.6 million kilowatts, and there are 30 completed and under-sea projects in the world. Submarine cable equipment with higher voltage levels, larger transmission capacity, longer laying paths, and better economics need to be developed.

In 2018, the world's first 500 kV AC polyethylene submarine cable independently developed by China successfully passed the test, and it was the first to be laid in Zhoushan's 500 kV power transmission and transformation project. Dongfang Cable, Jiangsu Hengtong and other cable companies have achieved new breakthroughs in the research and development of submarine cables. UHV DC submarine cables will become an indispensable key device for achieving long-distance transmission of power across the sea.

The development of smart grids promotes the development of intelligent and lean transmission and distribution equipment. By integrating advanced information, automation, energy storage, operation control and dispatching technologies, the smart grid effectively improves the grid's ability to accept new energy and promotes the sustainable development and use of new energy.

Advanced technology and green environmental protection transmission and distribution equipment will become the key to promote energy interconnection and realize the development of smart grids. As the focus of supporting the growth of energy interconnection, high-end power transmission and distribution equipment must strengthen the top-level design, strengthen technological innovation and key equipment research and development. In the future, the development of energy interconnection will bring more changes to the equipment manufacturing industry.

Made in China sings the voice of the world

China has achieved new progress in the localization of core components of transmission and distribution equipment in China. With the new changes in the international situation, research and development of core components with independent intellectual property rights is an urgent task to solve the "hollowing" of China's major equipment.

This year, a series of new progress was made in the localization of core components of domestic transmission and distribution equipment. Transmission and distribution equipment has gradually realized key equipment made in China. From Dongfang Cable to independently develop, design, and manufacture the world's first 500 kV photoelectric composite cross-linked submarine cable, to Wanma Polymer increased investment in research and development of high-voltage cable insulation materials. , Successfully developed high-voltage cable insulation materials. Domestic products have repeatedly set world records, and have made outstanding contributions to breaking the monopoly of foreign technologies and reversing the dependence of China on the import of core and key equipment.

In the research and development of UHV equipment, China West Power Group, Nanrui Jibao, Xu Ji Group, Dalian Electric Porcelain and other enterprises have continued to develop and innovate, and have overcome many worldwide problems such as the world's first UHV ± 800 kV DC technology. For example, the converter transformer developed by China West Power Group for the ± 800 kV UHV DC transmission project has reached the international advanced level in technology, and has promoted the technological upgrade and leap-forward development of domestic DC equipment manufacturing. "800 kV DC transmission project" has completed the research and development of equipment and protection technology for UHV DC transmission control and mastered the core technology of UHV DC transmission control and protection .

Especially in the field of transformers, China's UHV transformer manufacturing has repeatedly set a world record. Changji-Guquan ± 1100 kV UHV project The first converter transformer produced by TBEA; Shandong Electric Equipment Co., Ltd., affiliated to Shandong Electric Group, continuously produces converter transformers for converter stations ... the highest voltage level in the world, a single The UHV equipment with the largest product capacity, the most advanced technology, and the most difficult to manufacture have passed the acceptance one after another. China's transmission and distribution equipment manufacturing enterprises continue to set the world record of "Made in China".

This year, "Made in China" has never stopped moving abroad. With the shipment of the first batch of ± 800 kV converter transformers for the second phase of the Beautiful Mountain Project in Brazil, more and more electrical manufacturing companies, such as Pinggao Group and Xidian West Substation, showed the world "Made in China". Under the guidance of the “Belt and Road” initiative, the second phase of the beautiful mountain project effectively promoted China ’s electrical equipment enterprises to “go global” and create another “Chinese-led” golden signboard. In the global market competition, the international market recognition of China's electrical equipment manufacturing enterprises and electrical products has gradually increased.

After several years of hardships and hardships, how many spring and autumn seasons are true. This year, the pattern of China's transmission and distribution industry is also changing quietly. After years of introduction, absorption, and re-innovation, domestic enterprises now have certain accumulation and R & D capabilities, and already have certain advantages in terms of technical level and systematic solutions. I believe that through continuous technological innovation and progress, China's distribution and distribution The electrical equipment manufacturing industry will enter a new chapter.