Jilin Province is one of the ten million kilowatt-class wind power bases and the wind power industry is developing rapidly. In recent years, Jilin Electric Power Co., Ltd. has taken a multi-pronged approach in construction, research, management, and service to comprehensively improve the ability of the power grid to accept wind power. On August 23, the daily output of wind power and the maximum power output of Jilin Power Grid broke the record. Among them, the daily generation of wind power reached 43.62 million kwh, which accounted for 30.2% of the total power supply of the province on that day, and the maximum power generation output was 2.14 million kilowatts, which accounted for the province's power supply. The 33.3% load indicates that the wind power acceptance capacity of Jilin Power Grid has been at the leading level in the country.
Wind resources in Jilin Province are concentrated in the western region, far from the load center area. Jilin Electric Power Co., Ltd. adheres to the principle of “coordinated development of network sources†and scientifically plans to strengthen the construction of wind power supporting projects to ensure the timely approval of wind power. Since the "Eleventh Five-Year Plan" period, the company has invested a total of 4.5 billion yuan to build a total of 1,170 kilometers of wind power transmission and grid supporting projects, and a new (expanded) substation capacity of 4 million kVA. At present, the 500 kV sweet water-Songyuan-Hexin power transmission and transformation channel has been completed, and the 500 kV sweet water-Xianyang-Changling power transmission and transformation project is under construction. After the two are put into production, the capacity of Jilin West Grid will be increased by 4 times. the above.
In the research and development of wind power technology, Jilin Electric Power Co., Ltd. took the lead in carrying out provincial power grid wind power acceptance research, completed the first domestic wind farm interconnection operation short-circuit test, on-site testing of wind turbine low-voltage ride-through capability, and developed the first domestic wind power. Forecasting system and wind power intelligent control system. At present, the company is undertaking the research and development of the "grid-friendly large wind farm key technology research and demonstration" project of the State Grid Corporation of China.
In the dispatching operation management, Jilin Province Electric Power Co., Ltd. has formulated the “Information Exchange Specification for Wind Farm Dispatching and Operation†and “Administrative Order of Priority Wind Generation for Wind Farms†to maximize the acceptance of wind power under the premise of ensuring the safe and stable operation of the power grid; For network security management, the "Detailed Rules for the Implementation of Anti-Accident Measures for Grid Integration of Wind Power in Jilin Power Grid" was formulated to urge grid-connected wind power enterprises to improve power quality. The company also established wind power grid-connected technology research and testing center to strictly control wind farm access and grid connection verification.
Affected by Jilin's economic aggregate and regional economic development, the contradiction between wind power generation and consumption is outstanding. Jilin Electric Power Co., Ltd. took the initiative to provide services, adjust marketing strategies in a timely manner, focus on fostering load growth points, increase supply and sales expansion through multiple channels, strictly implement the “Three Ten Articlesâ€, regularly hold network factory (field) coordination meetings, and promote the operation of power plants (fields). Exchange of management experience, and strengthen technical supervision services, carry out thermal power unit deep peaking test, and improve the ability of the grid to accept wind power during low load periods.
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