风光火打捆系统无功配置与电压控制策略研究  

Research on reactive power configuration and voltage control strategy of wind-solar-thermal bundling system

作　　者：何向国 张天保 李哲 王家超 HE Xiangguo;ZHANG Tianbao;LI Zhe;WANG Jiachao(Inner Mongolia Datang International Togtoh Power Generation Co.,Ltd.,Hohhot 010299,China;China Datang Group Science and Technology Research Institute Co.,Ltd.,North China Electric Power Test and Research Institute,Beijing 100040,China)

机构地区：[1]内蒙古大唐国际托克托发电有限责任公司,内蒙古呼和浩特010299 [2]中国大唐集团科学技术研究总院有限公司华北电力试验研究院,北京100040

出　　处：《电气应用》2024年第11期10-16,共7页Electrotechnical Application

摘　　要：针对新能源和火电打捆送出系统的无功配置和电压控制问题,提出一种新能源汇集区抑制无功环流的控制策略。该策略能够有效抑制火电机组与各新能源之间无功的不合理流动,特别是在新能源场群采用高压侧并网点电压作为自动电压控制(AVC)指令时,出现的新能源场站之间无功的不合理流动。依据实际建设案例搭建仿真模型,仿真了新能源的多种运行场景与不同有功工况,计算了打捆系统的无功补偿边界。进一步地,通过仿真验证了当并网点电压跌落时,采取所提技术手段的控制效果。结果表明,该策略能够有效地提升新能源场站电压环节的支撑及调压能力,避免电压越限。Proposes a control strategy for reactive power configuration and voltage control in the bundling and transmission system of new energy and thermal power.The strategy can effectively suppress the unreasonable flow of reactive power between thermal power units and various new energy sources,as well as between new energy stations when the high-voltage side grid voltage is used as the AVC control command in the new energy field group.Based on actual construction cases,a simulation model was built to simulate various operating scenarios of new energy and calculate the reactive power compensation boundary of the bundling system under different active working conditions;Furthermore,the control effect of the proposed technology was verified through simulation when the voltage drop at the grid connection point occurred.The results indicate that this strategy can effectively enhance the voltage support and regulation capability of new energy stations,avoiding voltage exceeding the limit.

关 键 词：风光火打捆送出系统 无功配置 电压控制策略 新能源场群 

分 类 号：TM61[电气工程—电力系统及自动化]