During the 12th Five Year Plan period, China's UHV

2022-10-02
  • Detail

During the 12th Five Year Plan period, China's UHV investment will be "blowout"

during the 12th Five Year Plan period, China's UHV investment will reach 270billion yuan. In contrast, this amount was only 20billion yuan during the Eleventh Five Year Plan period. The soaring number has stimulated the nerves of power equipment enterprises. It can be predicted that in the future, enterprises with technological advantages in the industry are expected to have a streamlined flow channel for large melts at this investment feast, and make a lot of money

only the word blowout can describe China's UHV investment during the 12th Five Year Plan period

recently, liuzhenya, general manager of Guodian Corporation, said that in the next five years, Guodian will invest more than 500billion yuan in projects such as Matt high voltage to build a strong power frame. It is reported that among the 500billion yuan, the investment scale of UHV will reach 270billion yuan. In contrast, during the Eleventh Five Year Plan period, the investment amount of UHV in China was only 20billion yuan. The soaring number has stimulated the nerves of power equipment enterprises. It can be predicted that in the future, enterprises with technological advantages in the industry are expected to enjoy this investment feast and make a lot of money

UHV investment fever

as early as January 2009, Jinte, the first UHV demonstration project in China, also strives to accurately predict the future market trends and market dynamics. The 1000 kV high voltage AC transmission demonstration project in Southeast Jingmen has been officially put into operation, generally showing positive and negative operation, and has been successfully operated for two years. In July, 2010, the Xiangjiaba Shanghai 800 kV HVDC demonstration project was also successfully put into operation

in this regard, Liu Zhenya said that the 11th Five Year Plan for UHV construction is to lay the foundation, the 12th Five Year Plan is to increase the scale, and the 13th five year plan is to improve and improve. The development of ultra-high voltage power is the top priority of power development during the 12th Five Year Plan period. In the future, there will be many construction lines every year, and the construction task is very heavy

after laying a solid foundation for the demonstration project, Guodian proposed that by 2015, UHV AC in North China, East China and central China will form three vertical, three horizontal and one ring

it is understood that the so-called three verticals, three horizontals and one ring are: Nanjing in Ximeng, Nanchang in Zhangbei and Changsha in Northern Shaanxi are the three verticals; Weifang in the west of Inner Mongolia, Xuzhou in the middle of Shanxi and Ya'an in the south of Anhui are three horizontal lines; Huainan Nanjing Taizhou Suzhou Shanghai Zhebei Wannan Huainan Yangtze River Delta UHV ring is the first ring. After the completion of the three vertical, three horizontal and one ring project, the energy bases of Ximeng, Mengxi, Zhangbei and Northern Shaanxi will send power to North China, central China and East China through three vertical UHV AC channels, and the northern coal power and southwest hydropower will send power to North China, central China and Yangtze River Delta UHV ring through three horizontal UHV AC channels

at present, the preliminary design of Huainan Shanghai UHV project has been completed and the conditions for commencement are ready; Ximeng Nanjing UHV project has also completed the special research of design and fully launched the design. This means that Huainan Shanghai and Ximeng Nanjing, two important lines, will be built soon

after the completion of UHV, it will provide a convenient channel for the outward transmission of traditional energy, hydropower and wind power in Western China.

according to the national electricity statistics, by 2020, the western coal power bases in Shanxi, Shaanxi, mengning and Xinxin plan to send 234million kw of coal power to the central and eastern regions of China, including 197million kW of UHV AC and DC power

in addition, UHV will also undertake the task of hydropower transmission. The installed capacity of hydropower that can be developed by technology in 12 provinces in Western China is 440 million KW, accounting for more than 80% of the country, especially the southwest region is the key area of hydropower development in China in the future. Among the thirteen hydropower bases planned and constructed in China, five hydropower bases, including Jinsha River, Yalong River, Dadu River, Lancang River and Nujiang River, are the key development basins in the future. However, the local load level is low, and the large-scale development of these hydropower bases needs to be sent to the middle and Eastern load center area from a long distance

on the basis of ensuring the power demand of Sichuan and Chongqing, UHV AC and DC can be used to send electricity to the four provinces in central and eastern China. By 2020, the scale of power transmission from southwest Hydropower to the four provinces in central and eastern China through UHV AC and DC will reach 53million kW. A person from Guodian said

in addition, the western region accounts for four of the seven ten million kW wind power bases planned to be built in China (Hami, Xinjiang, Jiuquan, Gansu, Mengxi, Mengdong). Due to the low power load level, small system scale and insufficient wind power consumption capacity in the region where the western wind power base is located, it will rely on cross regional UHV power transmission in the future

equipment manufacturers feast

the pace of UHV construction has accelerated, which is a great advantage for many domestic power equipment enterprises

in the process of UHV construction, Guodian will increase its support to local equipment manufacturers. It is understood that compared with foreign advanced enterprises, especially large multinational companies, local equipment manufacturers still have gaps in scale, efficiency, management, product performance and quality, and their comprehensive competitiveness is in a weak position. However, since UHV transmission technology is the commanding height of electric technology, if national power pulls local equipment manufacturers to develop together, it can help local companies achieve leapfrog development and quickly narrow the gap with the world's advanced level. The falling edge of the pulse corresponds to the rising edge of the alternating load waveform, and at the zero crossing point, it can also enable local enterprises to obtain huge benefits

the support of State Grid for local equipment manufacturers can also be seen from previous bidding. It is revealed that in the UHV AC projects that have been completed, transformers, high-voltage reactors, switches (including grounding switches) and other equipment are purchased through competitive negotiation; Other UHV equipment, such as 1000 kV lightning arresters, post insulators, grounding switches and control and protection equipment, shall be subject to invitation for bids. The winning companies include Tianwei baobian, TBEA and Pinggao electric. The comprehensive localization rate reached 76%

according to the national electricity plan, all domestic enterprises with production capacity will conduct domestic procurement; If domestic enterprises do not have production conditions, domestic manufacturers will win the bid, and foreign manufacturers will supply goods as subcontractors of domestic manufacturers

Zhang Xile, chief engineer of Tianwei baobian, said that Tianwei baobian has undertaken the research and development task of ultra-high voltage transformer in the East and south of Shanxi and converter transformer of DC ultra-high voltage project. The construction of UHV is inclined to domestic enterprises. On the one hand, it improves the manufacturing level and research level of enterprises. On the other hand, it also drives the demand of domestic power market and provides opportunities and stages for many power equipment manufacturing enterprises

it is reported that at present, more than 100 domestic electrical equipment enterprises have participated in the development and supply of UHV equipment, among which the transformer is independently developed by TBEA, Shenyang Transformer Group and Tianwei baobian; The reactor is independently developed by Xi'an transformer company and Hengyang transformer company; The circuit breaker is jointly developed by Pinggao electric, xindongbei electric and Xi'an high voltage electric with foreign enterprises, and the property rights are shared; The protection and control system is developed by Nari Jibao, XJ Group, Sifang Jibao, etc

Liu Lei, an analyst at CITIC Securities, believes that during the 12th Five Year Plan period, the national power investment will tilt towards UHV, and the biggest beneficiaries are Pinggao electric and XJ electric, which are in the pocket of national power. PingGao Electric is the biggest beneficiary of UHV AC lines, and XJ Electric is the biggest beneficiary of UHV DC lines

Copyright © 2011 JIN SHI