±800 kV/4750 amp HVDC converter valve certified by the National Energy Agency
Recently, at the new product technology appraisal held by the Energy Saving and Technology Equipment Division of the National Energy Administration, the ±800 kV/4750 amps high-voltage direct current (DCDC) independently developed by the China Electric Power Research Institute (hereinafter referred to as the Chinese Academy of Electric Power) Flow valve through technical qualification. This means that China has fully mastered the core technologies and processes for the R&D of DC converter valves, realizing the localization of DC converter valve equipment in the true sense, and also marking the Chinese Academy of Electric Power becoming the next step for Swiss ABB and German Siemens. , The third company in the world to master and own design, manufacture and test technology for UHV DC converter valves.
The overall technical performance has reached the international advanced level
According to reports, the appraisal committee composed of 16 experts, including Lu Qiang, Yang Qixun, Zheng Jianchao, Cheng Shijie, and Lei Qingquan, agreed that the Chinese Academy of Electrical Engineering has mastered the core design, complete sets, and complete sets of UHV DC converter valves. The test technology, the developed A5000 ±800 kV/4750 amp HVDC converter valve module and valve tower have passed the verification of all type test items stipulated in IEC60700-1 and GB/T20990.1 standards, and are fully autonomous. Intellectual property. The product performance is excellent, the overall technical indicators are in the leading position in the world, and the overall technical performance has reached the international advanced level. The design and manufacturing process has realized the flow, standardization and standardization. The manufacturing process, tooling equipment and test capability have met the requirements of large-scale production; With engineering application conditions, it is recommended that large-scale production be carried out as soon as possible.
"Based on innovation, we must overcome difficulties, climb the peak, and increase our country's strength." Academician Yang Chixun gave such an evaluation to the China Electric Power Research Institute's UHVDC valve products.
Changing the Dependent Import Status of the Core Technology of DC Transmission
As the core equipment for DC transmission, the R&D of DC converter valve is one of the most complicated power equipment technologies. It is called the “heart†of the DC transmission system, and the thyristor is the core component of the converter valve. It is the "movement" and "nerve center component" of the valve.
It is understood that at present, China has constructed eight HVDC transmission projects, but the DC technology, the core technology of HVDC power transmission, has long been dependent on imports, and has not truly formed its own research and development capabilities. The reliance on imports has seriously hindered the further development and application of HVDC transmission equipment, especially based on large-capacity HVDC transmission technology in China.
An expert from the Chinese Academy of Electric Power told the “China Energy News†reporter that compared with the commonly used 5-inch thyristor DC converter valve, the successfully developed UHV DC valve with completely independent intellectual property rights can pass More than 3,000 amps were increased to 4750 amps, which increased the line transmission capacity by 150% and reduced the cost by 25%.
The reporter learned that in the course of the development of the ±800 kV/4750 amp HVDC valve, the Chinese Academy of Electric Power cooperated with the CSR Zhuzhou Electric Locomotive Research Institute and other domestic units to work together to jointly tackle a series of technical problems. .
Since 2004, the Chinese Academy of Electric Power has been relying on 10 key scientific research projects such as the national “Eleventh Five-Year Plan†science and technology support plan, which lasted six years, in the electrical characteristics of the DC valve, multi-physics numerical analysis, complete electrical design technology, complete sets of structures Major breakthroughs have been made in design technology, triggered monitoring technology, development of key components, and integration technology of converter valves.
The relevant person in charge of the CSR Zhuzhou Electric Locomotive Research Institute also told the “China Energy News†reporter that in order to install the “Chinese core†for China’s UHV transmission lines, they cooperated with the China Electric Power Research Institute and invested hundreds of millions of yuan to successfully develop The world's largest diameter and highest power 6-inch thyristor.
Promote the Full Industrialization of UHV DC Converter Valves
It is reported that the key test items of this type of converter valve product type test have all invited the international authoritative testing organization KEMA (Dutch Power Test Institute) to conduct on-site testimony according to the IEC60700-1 standard, and on July 30, passed the approval of seven academicians. Witness on the spot.
A reporter of the China Energy News learned that in the following month, the China Electric Power Research Institute quickly started to handle production licenses, and recently successfully obtained a third-party professional certification body for electromechanical products in the power industry. The product certification issued by the Electric Energy (Beijing) Product Certification Center (PCCC) has laid a good foundation for the marketing of this product.
The relevant person in charge of the China Electric Power Research Institute stated that it will give full play to the U.S. HVDC converter valve type test production capacity that can meet the requirements for the construction of two UHV projects at the same time within one year, and will fully promote the full industrialization of UHV DC converter valves. To build a high-tech major power equipment industry with UHV DC converter valve as the core competitive advantage.
It is understood that by 2015, only the State Grid Corporation of China has planned 12 high voltage and UHV DC transmission projects, and the total investment is expected to be more than 220 billion yuan. The industrial application of ±800 kV/4750 amp HVDC valve products not only satisfies the needs of smart grid construction in China, but also promotes the upgrading of downstream industries such as semiconductors, machinery and materials, and creates significant economic benefits; it will also completely break The monopoly of foreign companies in the major equipment for direct current transmission has enabled the transformation of China's major equipment manufacturing industry from "Made in China" to "Created in China."
Recently, at the new product technology appraisal held by the Energy Saving and Technology Equipment Division of the National Energy Administration, the ±800 kV/4750 amps high-voltage direct current (DCDC) independently developed by the China Electric Power Research Institute (hereinafter referred to as the Chinese Academy of Electric Power) Flow valve through technical qualification. This means that China has fully mastered the core technologies and processes for the R&D of DC converter valves, realizing the localization of DC converter valve equipment in the true sense, and also marking the Chinese Academy of Electric Power becoming the next step for Swiss ABB and German Siemens. , The third company in the world to master and own design, manufacture and test technology for UHV DC converter valves.
The overall technical performance has reached the international advanced level
According to reports, the appraisal committee composed of 16 experts, including Lu Qiang, Yang Qixun, Zheng Jianchao, Cheng Shijie, and Lei Qingquan, agreed that the Chinese Academy of Electrical Engineering has mastered the core design, complete sets, and complete sets of UHV DC converter valves. The test technology, the developed A5000 ±800 kV/4750 amp HVDC converter valve module and valve tower have passed the verification of all type test items stipulated in IEC60700-1 and GB/T20990.1 standards, and are fully autonomous. Intellectual property. The product performance is excellent, the overall technical indicators are in the leading position in the world, and the overall technical performance has reached the international advanced level. The design and manufacturing process has realized the flow, standardization and standardization. The manufacturing process, tooling equipment and test capability have met the requirements of large-scale production; With engineering application conditions, it is recommended that large-scale production be carried out as soon as possible.
"Based on innovation, we must overcome difficulties, climb the peak, and increase our country's strength." Academician Yang Chixun gave such an evaluation to the China Electric Power Research Institute's UHVDC valve products.
Changing the Dependent Import Status of the Core Technology of DC Transmission
As the core equipment for DC transmission, the R&D of DC converter valve is one of the most complicated power equipment technologies. It is called the “heart†of the DC transmission system, and the thyristor is the core component of the converter valve. It is the "movement" and "nerve center component" of the valve.
It is understood that at present, China has constructed eight HVDC transmission projects, but the DC technology, the core technology of HVDC power transmission, has long been dependent on imports, and has not truly formed its own research and development capabilities. The reliance on imports has seriously hindered the further development and application of HVDC transmission equipment, especially based on large-capacity HVDC transmission technology in China.
An expert from the Chinese Academy of Electric Power told the “China Energy News†reporter that compared with the commonly used 5-inch thyristor DC converter valve, the successfully developed UHV DC valve with completely independent intellectual property rights can pass More than 3,000 amps were increased to 4750 amps, which increased the line transmission capacity by 150% and reduced the cost by 25%.
The reporter learned that in the course of the development of the ±800 kV/4750 amp HVDC valve, the Chinese Academy of Electric Power cooperated with the CSR Zhuzhou Electric Locomotive Research Institute and other domestic units to work together to jointly tackle a series of technical problems. .
Since 2004, the Chinese Academy of Electric Power has been relying on 10 key scientific research projects such as the national “Eleventh Five-Year Plan†science and technology support plan, which lasted six years, in the electrical characteristics of the DC valve, multi-physics numerical analysis, complete electrical design technology, complete sets of structures Major breakthroughs have been made in design technology, triggered monitoring technology, development of key components, and integration technology of converter valves.
The relevant person in charge of the CSR Zhuzhou Electric Locomotive Research Institute also told the “China Energy News†reporter that in order to install the “Chinese core†for China’s UHV transmission lines, they cooperated with the China Electric Power Research Institute and invested hundreds of millions of yuan to successfully develop The world's largest diameter and highest power 6-inch thyristor.
Promote the Full Industrialization of UHV DC Converter Valves
It is reported that the key test items of this type of converter valve product type test have all invited the international authoritative testing organization KEMA (Dutch Power Test Institute) to conduct on-site testimony according to the IEC60700-1 standard, and on July 30, passed the approval of seven academicians. Witness on the spot.
A reporter of the China Energy News learned that in the following month, the China Electric Power Research Institute quickly started to handle production licenses, and recently successfully obtained a third-party professional certification body for electromechanical products in the power industry. The product certification issued by the Electric Energy (Beijing) Product Certification Center (PCCC) has laid a good foundation for the marketing of this product.
The relevant person in charge of the China Electric Power Research Institute stated that it will give full play to the U.S. HVDC converter valve type test production capacity that can meet the requirements for the construction of two UHV projects at the same time within one year, and will fully promote the full industrialization of UHV DC converter valves. To build a high-tech major power equipment industry with UHV DC converter valve as the core competitive advantage.
It is understood that by 2015, only the State Grid Corporation of China has planned 12 high voltage and UHV DC transmission projects, and the total investment is expected to be more than 220 billion yuan. The industrial application of ±800 kV/4750 amp HVDC valve products not only satisfies the needs of smart grid construction in China, but also promotes the upgrading of downstream industries such as semiconductors, machinery and materials, and creates significant economic benefits; it will also completely break The monopoly of foreign companies in the major equipment for direct current transmission has enabled the transformation of China's major equipment manufacturing industry from "Made in China" to "Created in China."
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