宁夏作为中国西部重要的能源基地，近年来在电力外送方面取得了显著成绩。据国网宁夏超高压公司最新消息，截至今年7月底，宁夏通过银东直流、灵绍直流等电力外送大通道，已累计向华东华北地区输送电量超过7480亿千瓦时。这一成就不仅为宁夏赢得了“西电东送”的重要地位，也为全国能源供应的安全稳定做出了巨大贡献。
迎峰度夏期间，宁夏所辖的两条特高压直流输电线路——±800千伏灵绍直流和±660千伏银东直流，充分发挥了其在电力输送中的关键作用。自6月15日电网进入迎峰度夏以来，灵绍直流送电量超80亿千瓦时，其中7月送电量创年度新高为53.5亿千瓦时，年度累计满负荷运行时间累计超24小时。银东直流送电量也达到了39.72亿千瓦时，外送通道利用小时数居全国前列。
宁夏电力外送的成功得益于其高效的电力传输技术和智能化的运维管理。国网宁夏超高压公司利用数字换流站、一体化业务平台等智能手段，确保了电力设备的稳定运行。特别是在高温大负荷运行工况下，该公司创新采用细水喷雾的方式为换流变辅助降温，有效降低了换流变运行温度，确保了核心设备的安全稳定。
宁夏电力外送不仅为华东、华北地区提供了充足的电力供应，还有效地减少了当地能源消耗和污染物排放。据估算，宁夏电力外送相当于就地转化近3亿吨标准煤，减少了7.48亿吨二氧化碳、2亿吨碳粉尘、1122万吨氮氧化物的排放，对环境保护起到了积极作用。
随着中国经济的持续发展，电力需求将持续增长。宁夏电力外送的持续稳定，对于保障国家能源安全、推动区域经济协调发展具有重要意义。未来，宁夏将继续发挥其在电力外送方面的优势，为国家能源供应作出更大贡献。
英语如下：
News Title: “Ningxia Exports Over 74.8 Billion Kilowatt-Hours of Electricity, Assisting Eastern Regions Through the Peak Summer Period”
Keywords: Ningxia, Exported Electricity, Over 74.8 Billion Kilowatt-Hours
News Content: As an important energy base in western China, Ningxia has achieved significant results in the export of electricity in recent years. According to the latest news from State Grid Ningxia UHV Company, by the end of July this year, Ningxia has cumulatively exported over 74.8 billion kilowatt-hours of electricity to the eastern and northern regions through major export channels such as the Yindong DC and Lingshu DC. This achievement not only secured Ningxia’s important position in the “west-to-east power transmission” but also made a tremendous contribution to the safe and stable national energy supply.
During the peak summer period, the two ultra-high-voltage DC power transmission lines under the jurisdiction of Ningxia—the Lingshu DC at ±800 kilovolts and the Yindong DC at ±660 kilovolts—played a key role in the power transmission. Since June 15, when the power grid entered the peak summer period, the Lingshu DC exported over 8 billion kilowatt-hours of electricity, with July’s export setting a new annual record of 5.35 billion kilowatt-hours and exceeding 24 hours of full-load operation. The Yindong DC also exported 3.972 billion kilowatt-hours of electricity, with the utilization hours of the export channels ranking among the top in the country.
The success of Ningxia’s electricity export can be attributed to its efficient power transmission technology and intelligent operation and maintenance management. State Grid Ningxia UHV Company has used intelligent methods such as digital substations and an integrated business platform to ensure the stable operation of power equipment. In particular, under high-temperature and heavy-load operating conditions, the company has innovatively used a fine water mist spraying method to cool the converter transformers, effectively reducing their operating temperature and ensuring the safety and stability of core equipment.
Ningxia’s electricity export not only provides sufficient power supply for the eastern and northern regions but also effectively reduces local energy consumption and pollutant emissions. It is estimated that Ningxia’s electricity export converts nearly 300 million tons of standard coal on site, reducing emissions of 7.48 billion tons of carbon dioxide, 2 billion tons of carbon dust, and 11.22 million tons of nitrogen oxides, making a positive impact on environmental protection.
As China’s economy continues to grow, the demand for electricity will continue to increase. The continuous and stable export of Ningxia’s electricity is of great significance for ensuring national energy security and promoting coordinated regional economic development. In the future, Ningxia will continue to leverage its advantages in electricity export to make greater contributions to the national energy supply.
【来源】http://www.chinanews.com/cj/2024/08-04/10263398.shtml
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