寒旱地区分布式新能源配电网过电压控制方法OA
Overvoltage Control Method of Distributed New Energy Distribution Network in Cold and Dry Areas
寒旱地区灌溉负荷的随机变化以及分布式风光能源的非线性动态变化,带来了高混淆式的复合型暂态过电压.以蒙东某农业区域典型日含两段高峰负荷线路为案例,搭建了考虑灌溉负荷和新能源接入的配电网系统模型,对比分析了多种方式调节电压幅值分布特点.仿真结果来看,分布式新能源可以缓解灌溉高峰负荷的电力需求,但会产生过电压问题;增加储能系统可缓解电压幅值,但在末端电压处理上,集中储能系统不如分布式储能系统.在蒙东典型农业区域进行了应用,缓解了灌溉高峰时段的电压难题,相关结论为高渗透率分布式新能源提供了技术参考.
The random variation of irrigation load and the nonlinear dynamic variation of distributed wind energy in the cold and drought region bring about the complex transient overvoltage with high confusion type.Taking a typical daily two-stage peak load line in an agricultural area of eastern Mongolia as an example,a distribution network system model considering irrigation load and new energy access was built,and the characteristics of voltage amplitude distribution were compared and analyzed in various ways.The simulation results show that distributed new energy can alleviate the power demand of irrigation peak load,but it will produce overvoltage problem.Adding energy storage system can alleviate voltage amplitude,but centralized energy storage system is inferior to distributed energy storage system in termi-nal voltage processing.The application in the typical agricultural area of eastern Mongolia alleviates the voltage problem during irrigation peak hours,and the relevant conclusions provide a technical reference for distributed new energy with high permeability.
曹志刚;丁仁杰;崔旭东;王伟;吕世高;葛宁
国网内蒙古东部电力有限公司通辽供电公司,内蒙古通辽 028100国网内蒙古东部电力有限公司通辽供电公司,内蒙古通辽 028100国网内蒙古东部电力有限公司通辽供电公司,内蒙古通辽 028100国网电力科学研究院武汉南瑞有限责任公司,武汉 430074国网内蒙古东部电力有限公司通辽供电公司,内蒙古通辽 028100国网内蒙古东部电力有限公司通辽供电公司,内蒙古通辽 028100
寒旱地区灌溉负荷分布式新能源暂态过电压电压调节抑制方法
cold and dry areasirrigation loaddistributed new energytransient over-voltagevoltage regulationinhibition method
《电瓷避雷器》 2024 (6)
53-60,8
国网内蒙古东部电力有限公司科技项目(编号:SGMDTL00YWJS2100711).Project supported by Science and Technology Program of State Grid Inner Mongolia Eastern Electric Power Co.,Ltd.(No.SGMDTL00YWJS2100711).
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