In mid-October, the reporter went to the UHV Jindongnan Substation to interview the construction of the UHV AC expansion project. At the scene, the reporter saw the rain construction workers, but also met the station head Yang Aimin. Yang Aimin said that during construction, they had more overtime. Qin Yanwei beside him should have rested on the same day, but he is here again. "Overtime work is to ensure smooth construction and ensure that the project is put into operation as soon as possible." Yang Aimin said, "Because no matter from which point of view, the expansion project is too important."
The start-up project of the “12th Five-Year†UHV construction, connecting the energy major passages in Central China and North China, is based on these two points. The value of the expansion project is very prominent. Through these two points, we can also see a two-dimensional image that shows the value of the expansion.
The demonstration significance of the start-up project At the beginning of the “Twelfth Five-Year Planâ€, the UHV was highly valued by the state and local governments. At the national level, UHV construction has been written into the national "Twelfth Five-Year Plan" development plan. This means that UHV construction has become a national strategy and the development of UHV is not a matter of one company, but a decision that is closely related to the country’s economic construction. At the local level, at the beginning of 2011, government work reports from at least six provinces such as Shanxi, Shaanxi, and Xinjiang directly proposed the idea of ​​developing UHV; during the “two sessions†in Hunan Province, the first document of the Hunan Provincial People’s Political Consultative Conference directly addressed the “twelfth five-year planâ€. The establishment of an energy security system will make the construction of UHV lines an important choice.
Why does this happen? At the mobilization meeting for the construction of the UHV expansion project on January 6, the words of Liu Zhenya, the general manager of the State Grid Corporation of China and the party secretary, are the answers. He stated that starting from the basic national conditions, only by accelerating the construction of UHV power grids and promoting the intensive development of large coal-fired power stations, large hydropower stations, large-scale nuclear power stations, and large-scale clean energy bases can the energy resources be optimized for deployment over a wider range, and energy can be guaranteed. Sustained supply, promote energy conservation and emission reduction, fundamentally solve the energy and power constraints in economic development, and realize the scientific development of the energy and power industries.
The “12th Five-Year†UHV construction has entered the fast lane, and the UHV AC expansion project, as the first UHV project during the “12th Five-Year Plan†period, has naturally increased in importance. Zheng Baosen, deputy general manager and member of the Party Group, said: "This expansion project is the starting project for the construction of the 12th Five-Year UHV power grid and will play an important demonstration role in UHV construction and operation."
The demonstration effect is reflected in the fact that it will further verify the UHV AC capacity for large capacity and long-distance transmission. In the southeastern Shanxi station, Yang Aimin said before standing in a huge group of transformers that this was a new set of main transformers, which increased the transmission capacity of the line after the expansion to 5 million kilowatts, and improved the allocation of power grid resources and the level of safe and stable operation.
Another manifestation of the demonstration role is that it further promotes UHV technology innovation. The expansion project applied the world's first UHV series compensator to enrich and improve UHV transmission technology and equipment. The technical experts of the China Electric Power Research Institute stated that the application of the series compensation device can significantly increase the transmission capacity of the UHV project, enhance the stability of the system, and improve the operating voltage and voltage distribution along the line. It is a prerequisite for the project to achieve a transmission capacity of 5 million kilowatts. condition.
Starting a good start will surely promote the construction of other projects, and ultimately realize the role of UHV in optimizing the allocation of resources on a large scale.
Energy Channel Brings Economic Benefits If the vision is transferred from the national level to the regional level, such as Shanxi, Henan, and Hubei provinces along the project line, we will find that the expansion project will bring more economic benefits to the three provinces and even North China and Central China. .
The expansion project is an important starting point for Shanxi to realize its economic transformation.
On March 1, 2011, Ren Runhou, vice governor of Shanxi Province, took snow to Jindongnan Station to inspect the construction of the expansion. He said that he hopes that the city of Changzhi will continue to accelerate the planning and construction of power points, realize the transformation of coal on the spot, deepen the integration of coal resources, and advance the comprehensive supporting reforms of the national resource-based economy that is being implemented in Shanxi.
Coal is one of the main commodities in Shanxi. According to statistics, Shanxi Province exports more than 400 million tons of coal each year. How to change the mode of selling coal to maximize the efficiency of coal resources has become an important issue for Shanxi to change its development mode.
UHV to achieve coal transmission and transmission is an important solution. According to related personnel of Shanxi Electric Power Company, during the “12th Five-Year Plan†period, Shanxi Province will increase the number of external power transmissions by more than three times through the addition of extra-high-voltage transmission lines, thereby promoting Shanxi's energy economy transformation and leap-forward development. .
The role of UHV expansion in Henan is to provide guarantee for the development of the Central Plains Economic Zone.
In April 2010, the establishment of the Central Plains Economic Zone led to an upsurge of investment and new demands for electricity supply. The protection of power demand in the construction of the Central Plains Economic Zone has attracted the attention of the government. On October 10, the State Council issued the "Guiding Opinions on Supporting Henan Province to Speed ​​up the Construction of the Central Plains Economic Zone," pointing out that it is necessary to raise the energy security level, optimize the energy structure and layout, and provide more reliable power support for the Central China Economic Zone.
After the expansion project was completed, the Nanyang switch station was upgraded to a Nanyang substation, which enabled the UHV to truly “land†in Henan. Accelerating the development of UHV power grids and implementing the “transmission of foreign power into Yu†will be the strategic choice for ensuring the power demand for Henan Zhongyuan Economic Zone.
The Hubei and even Central China regions are facing power shortages and need the U.S.
According to data provided by the Huazhong Electric Power Control Sub-center, this winter and next spring, the coal gap in Central China exceeds 15 million tons. Under the constraint of the shortage of power coal, the tension situation in central China will be further aggravated. The transmission channel formed after the commissioning of the UHV AC expansion project is an important "foreign aid" for the local grid during the winter. Before the expansion, the channel was already an important source of power supply for the Central China Power Grid. As of November 2011, North China Thermal Power delivered more than 16 billion kilowatt-hours to China, replacing 5.3 million tons of coal. It is conceivable that the post-expansion project will play a huge role.
The start-up project of the “12th Five-Year†UHV construction, connecting the energy major passages in Central China and North China, is based on these two points. The value of the expansion project is very prominent. Through these two points, we can also see a two-dimensional image that shows the value of the expansion.
The demonstration significance of the start-up project At the beginning of the “Twelfth Five-Year Planâ€, the UHV was highly valued by the state and local governments. At the national level, UHV construction has been written into the national "Twelfth Five-Year Plan" development plan. This means that UHV construction has become a national strategy and the development of UHV is not a matter of one company, but a decision that is closely related to the country’s economic construction. At the local level, at the beginning of 2011, government work reports from at least six provinces such as Shanxi, Shaanxi, and Xinjiang directly proposed the idea of ​​developing UHV; during the “two sessions†in Hunan Province, the first document of the Hunan Provincial People’s Political Consultative Conference directly addressed the “twelfth five-year planâ€. The establishment of an energy security system will make the construction of UHV lines an important choice.
Why does this happen? At the mobilization meeting for the construction of the UHV expansion project on January 6, the words of Liu Zhenya, the general manager of the State Grid Corporation of China and the party secretary, are the answers. He stated that starting from the basic national conditions, only by accelerating the construction of UHV power grids and promoting the intensive development of large coal-fired power stations, large hydropower stations, large-scale nuclear power stations, and large-scale clean energy bases can the energy resources be optimized for deployment over a wider range, and energy can be guaranteed. Sustained supply, promote energy conservation and emission reduction, fundamentally solve the energy and power constraints in economic development, and realize the scientific development of the energy and power industries.
The “12th Five-Year†UHV construction has entered the fast lane, and the UHV AC expansion project, as the first UHV project during the “12th Five-Year Plan†period, has naturally increased in importance. Zheng Baosen, deputy general manager and member of the Party Group, said: "This expansion project is the starting project for the construction of the 12th Five-Year UHV power grid and will play an important demonstration role in UHV construction and operation."
The demonstration effect is reflected in the fact that it will further verify the UHV AC capacity for large capacity and long-distance transmission. In the southeastern Shanxi station, Yang Aimin said before standing in a huge group of transformers that this was a new set of main transformers, which increased the transmission capacity of the line after the expansion to 5 million kilowatts, and improved the allocation of power grid resources and the level of safe and stable operation.
Another manifestation of the demonstration role is that it further promotes UHV technology innovation. The expansion project applied the world's first UHV series compensator to enrich and improve UHV transmission technology and equipment. The technical experts of the China Electric Power Research Institute stated that the application of the series compensation device can significantly increase the transmission capacity of the UHV project, enhance the stability of the system, and improve the operating voltage and voltage distribution along the line. It is a prerequisite for the project to achieve a transmission capacity of 5 million kilowatts. condition.
Starting a good start will surely promote the construction of other projects, and ultimately realize the role of UHV in optimizing the allocation of resources on a large scale.
Energy Channel Brings Economic Benefits If the vision is transferred from the national level to the regional level, such as Shanxi, Henan, and Hubei provinces along the project line, we will find that the expansion project will bring more economic benefits to the three provinces and even North China and Central China. .
The expansion project is an important starting point for Shanxi to realize its economic transformation.
On March 1, 2011, Ren Runhou, vice governor of Shanxi Province, took snow to Jindongnan Station to inspect the construction of the expansion. He said that he hopes that the city of Changzhi will continue to accelerate the planning and construction of power points, realize the transformation of coal on the spot, deepen the integration of coal resources, and advance the comprehensive supporting reforms of the national resource-based economy that is being implemented in Shanxi.
Coal is one of the main commodities in Shanxi. According to statistics, Shanxi Province exports more than 400 million tons of coal each year. How to change the mode of selling coal to maximize the efficiency of coal resources has become an important issue for Shanxi to change its development mode.
UHV to achieve coal transmission and transmission is an important solution. According to related personnel of Shanxi Electric Power Company, during the “12th Five-Year Plan†period, Shanxi Province will increase the number of external power transmissions by more than three times through the addition of extra-high-voltage transmission lines, thereby promoting Shanxi's energy economy transformation and leap-forward development. .
The role of UHV expansion in Henan is to provide guarantee for the development of the Central Plains Economic Zone.
In April 2010, the establishment of the Central Plains Economic Zone led to an upsurge of investment and new demands for electricity supply. The protection of power demand in the construction of the Central Plains Economic Zone has attracted the attention of the government. On October 10, the State Council issued the "Guiding Opinions on Supporting Henan Province to Speed ​​up the Construction of the Central Plains Economic Zone," pointing out that it is necessary to raise the energy security level, optimize the energy structure and layout, and provide more reliable power support for the Central China Economic Zone.
After the expansion project was completed, the Nanyang switch station was upgraded to a Nanyang substation, which enabled the UHV to truly “land†in Henan. Accelerating the development of UHV power grids and implementing the “transmission of foreign power into Yu†will be the strategic choice for ensuring the power demand for Henan Zhongyuan Economic Zone.
The Hubei and even Central China regions are facing power shortages and need the U.S.
According to data provided by the Huazhong Electric Power Control Sub-center, this winter and next spring, the coal gap in Central China exceeds 15 million tons. Under the constraint of the shortage of power coal, the tension situation in central China will be further aggravated. The transmission channel formed after the commissioning of the UHV AC expansion project is an important "foreign aid" for the local grid during the winter. Before the expansion, the channel was already an important source of power supply for the Central China Power Grid. As of November 2011, North China Thermal Power delivered more than 16 billion kilowatt-hours to China, replacing 5.3 million tons of coal. It is conceivable that the post-expansion project will play a huge role.
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