Workflow
特高压技术
icon
Search documents
中国创造!“电力高铁”领跑世界
Jin Rong Shi Bao· 2025-09-18 14:19
Core Viewpoint - The article highlights the advancements and significance of China's ultra-high voltage (UHV) technology, particularly the Baihetan-Jiangsu ±800 kV UHV direct current project, which facilitates the efficient transmission of clean hydropower from Sichuan to Jiangsu, addressing long-term power supply challenges in East China [1][3]. Group 1: UHV Technology and Its Impact - The Baihetan-Jiangsu ±800 kV UHV direct current project provides 30 billion kWh of electricity annually to Jiangsu, equivalent to half a year's electricity consumption for Changzhou [3]. - The project showcases the capabilities of flexible direct current transmission technology, which is considered a key solution for integrating large-scale renewable energy [3][5]. - China has established the world's largest UHV power grid, spanning 40,000 kilometers, and is leading the global market in UHV technology [5]. Group 2: Company Innovation and Global Presence - Borui Electric, a key player in UHV technology, has participated in 19 out of 23 existing UHV direct current projects in China and has developed the world's highest voltage level (±1100 kV) converter stations [3][5]. - The company emphasizes independent innovation and talent development, positioning itself as a national manufacturing champion and a leader in technological advancements [3][5]. - Borui Electric's equipment has gained a competitive edge in international markets, outperforming established companies like Siemens in reliability [5]. Group 3: Regional Manufacturing and Investment - Changzhou has emerged as a hub for advanced manufacturing, housing over 5,400 high-tech enterprises and forming ten major advanced manufacturing clusters [5]. - Local companies are increasingly investing abroad, with 759 enterprises involved in 1,146 overseas projects, contributing over $5 billion in investments in Belt and Road Initiative countries [5].
特高压“心脏”中的中国电力出海密码
Core Viewpoint - The development of ultra-high voltage direct current (UHVDC) transmission technology is becoming a significant aspect of China's international presence, with companies like Borui Electric leading the way in overseas projects [1][2]. Group 1: Company Overview - Borui Electric is a key player in China's UHVDC technology, providing core equipment for 19 out of 23 completed UHVDC projects in the country [3]. - The company has supplied the highest voltage level UHVDC converter valves for the Changji-Guquan ±1100kV project, which is considered the "heart" of the UHVDC system [3]. - Borui Electric is also involved in the first overseas UHVDC converter valve renovation project at the Itaipu Hydropower Station in Brazil, showcasing its innovative solutions [4]. Group 2: Industry Trends - The UHVDC technology is crucial for large-capacity, long-distance power transmission and is widely applied in major engineering projects both domestically and internationally [2]. - As of 2025, it is projected that wind and solar power will account for approximately 46% of China's total installed power capacity, necessitating the use of UHVDC for long-distance transmission [4]. - The flexible direct current (VSC) technology is emerging as a solution to integrate renewable energy sources into the grid, with Borui Electric participating in significant projects like the world's largest flexible DC back-to-back project in the Guangdong-Hong Kong-Macao Greater Bay Area [5]. Group 3: Future Developments - The application of UHVDC technology is accelerating, with the first UHV flexible direct current project starting construction in July 2024 [5]. - Borui Electric is advancing the development of grid-forming energy storage systems and other innovative technologies to support the new power system [7].
金冠电气:从南阳首家科创板企业到特高压“守护者”
Core Viewpoint - The article highlights the significant role of listed companies in China's economic development during the "14th Five-Year Plan" period, emphasizing innovation as a key driver for high-quality growth [1] Company Overview - Jinguang Electric Co., Ltd. was established on March 28, 2005, and went public on the Shanghai Stock Exchange's Sci-Tech Innovation Board on June 18, 2021, becoming the first company in Nanyang and the fourth in Henan to list on this board [1] - It is the first Sci-Tech Innovation Board enterprise in China with a primary business in lightning protection devices [1] Technological Innovations - In 2023, the company developed a 1000kV high-altitude composite outer jacket lightning arrester, which meets the requirements for the construction of the Sichuan-Chongqing UHV project [1] - The product is specifically designed for areas above 3000 meters, addressing the technical challenges of reduced external insulation strength in high-altitude environments [1] - The company completed the development of the world's first ±800kV UHV DC filter high seismic composite outer jacket lightning arrester, which has been applied in the UHV DC project from the upper reaches of the Jinsha River to Hubei [2] Material Development - The company has independently developed a high energy density resistor sheet for converter valve lightning arresters, which was included in the fourth batch of major technological equipment in the energy sector announced by the National Energy Administration in January 2025 [3] - The resistor sheet is manufactured using electronic ceramic processing technology, with approximately 90% zinc oxide and 10% other metal oxides [3] - The company has developed a comprehensive formula system for both DC and AC applications, demonstrating excellent performance characteristics [3] Business Expansion - Since 2021, the company has expanded its business to include the research, production, and sales of electric vehicle charging piles and electrochemical energy storage systems [3] - The charging pile business has grown in response to market demand, with products covering a power range from 7kW to 960kW, applicable in various scenarios [3] Qualifications and Recognition - The company has received several qualifications, including the National Enterprise Technology Center and the recognition of its metal oxide lightning arrester as a champion product by the Ministry of Industry and Information Technology [4] - It has ranked among the top in the bidding share for lightning protection products in the State Grid's procurement over the past three years [4] Standard Development - The company participated in the revision of national standards for high voltage direct current transmission energy dissipation devices, which are set to be published in April 2025 [5]
一个月全国用了1万亿度电,破人类记录!网友自豪算账:比十年前翻一番,这些电都用在哪了?
Sou Hu Cai Jing· 2025-08-24 04:06
Core Insights - The article highlights the significant increase in electricity consumption in China over the past decade, reflecting both the country's economic growth and the transformation of the global energy landscape [2][5][34] Electricity Consumption Growth - In 2024, China's total electricity consumption is projected to reach 98,521 billion kilowatt-hours, marking a 6.8% year-on-year increase, with a peak of 10,226 billion kilowatt-hours in July [5][34] - The electricity index for all industries is expected to grow by 29.5% from 2020, with an average annual growth rate of 6.7% [5][7] Sectoral Electricity Usage Primary Industry - The primary industry is expected to consume 170 billion kilowatt-hours in 2024, a 20.2% increase year-on-year, driven by smart agriculture and related technologies [9][10] Secondary Industry - The secondary industry accounts for nearly 60% of total electricity consumption, with 593.6 billion kilowatt-hours in 2024. High-tech and equipment manufacturing lead the growth, with new energy vehicle manufacturing increasing by 25.7% [10][12] Tertiary Industry - The tertiary industry is projected to consume 2,081 billion kilowatt-hours, a 10.7% increase, with internet services and charging services growing by 28.2% and 42.6%, respectively [12][14] Residential Consumption - In July 2024, residential electricity consumption surged by over 30% in several provinces, reaching 2,039 billion kilowatt-hours, a year-on-year increase of 18% [14][15] Power Supply and Infrastructure - China's power grid demonstrated resilience during peak demand periods, with a maximum cross-regional transmission capacity of 142 million kilowatts, equivalent to half of the Three Gorges Dam's output [14][18] - By mid-2024, the total installed renewable energy capacity is expected to reach 2.159 billion kilowatts, accounting for 59.2% of total capacity, surpassing coal power for the first time [25][27] Technological Advancements - The State Grid's real-time monitoring system allows for rapid load forecasting and management, achieving a "zero blackout" status even during peak loads exceeding 1.5 billion kilowatts [24][34] - The implementation of time-of-use pricing in regions like Zhejiang and Sichuan has successfully reduced peak demand by 1 million kilowatts [24] Conclusion - The article concludes that the dramatic increase in electricity consumption not only reflects the aspirations of 1.4 billion people for a better life but also positions China as a leader in the global renewable energy market, with significant contributions to solar and wind energy [34][35]
“偷师”中国的印度,能偷出个印度制造吗?
3 6 Ke· 2025-07-11 11:52
Group 1 - The core point of the article highlights the challenges faced by Chinese companies in India, particularly focusing on the case of Baobian Electric, which sold its 90% stake in its Indian subsidiary for approximately 137 million RMB after incurring significant losses over six years [1][2][29] - Baobian Electric aimed to establish a foothold in the Indian market in 2016 but faced continuous losses, ultimately leading to its exit from the market [2][29] - The article discusses the advanced technology of Baobian Electric in the field of ultra-high voltage transformers, emphasizing its critical role in China's power infrastructure [3][4][12] Group 2 - The article points out that India's strategy of acquiring foreign technology often results in a lack of capability to fully industrialize or implement these technologies effectively [6][9][12] - It provides examples of previous collaborations where Indian companies have benefited from Chinese technology but struggled to replicate the success due to systemic industrial shortcomings [7][9][12] - The article argues that India's approach to foreign investment and technology acquisition is driven by a combination of historical factors and current political strategies, leading to a focus on short-term gains rather than sustainable industrial development [18][26][39] Group 3 - The article suggests that the current global industrialization window has closed for India, making it increasingly reliant on opportunistic strategies to acquire technology from foreign companies [23][25][26] - It discusses the implications of India's political and social structure on its industrialization efforts, highlighting the challenges posed by regional governance and resource allocation [21][23][39] - The article concludes that the contrasting historical experiences of China and India shape their respective approaches to globalization and industrialization, with China having a more cohesive strategy for development [40][41]