摘要
精确模拟分布式电源输出的随机性,对分析分布式电源选址和定容对配电网的影响具有重要意义。本文基于Wasserstein距离指标的最优场景法构建风-光-荷多场景模型。以改进的电压分布指标为目标,结合含多场景模型、功率平衡及运行约束条件,建立分布式电源选址和定容对配电网电压稳定裕度影响最小的优化模型。通过两个配电网算例分析,结果表明合理选择分布式电源接入点的容量有利于提高配电网电压稳定裕度,能有效降低系统网损。
To simulate the randomness of active power output from distributed generation exactly, it is important to ana- lyze the impact of the locating and sizing of distributed generation on distribution network. A multi-scenario model of wind-photovohaic-load is built based on the Wasserstein distance indicators to construct the optimal scenario. With the improved voltage distribution index as an objective function, optimization models are established to minimize the im- pact of the locating and sizing of distributed generation on distribation network, considering the multi-scenario model, power equilibrium and other operation constraints. The simulation results of two distribution systems show that a reason- able choice of the locating and sizing of distributed generation can help to improve the voltage stability margin of distri- bution system and reduce the system loss.
作者
吴雪颖
白晓清
李佩杰
WU Xueying BAI Xiaoqing LI Peijie(Guangxi Key Laboratory of Power System Optimization and Energy Technology （Guangxi University）, Nanning 530004, Chin)
出处
《电力系统及其自动化学报》
CSCD
北大核心
2016年第12期18-25,共8页
Proceedings of the CSU-EPSA
基金
国家重点基础研究发展计划(973计划)资助项目(2013CB228205)
国家自然科学基金资助项目(51367004
51407036)
关键词
配电网
分布式电源
最优场景
电压稳定裕度
多场景
distribution system
distributed generation
optimal scenario
voltage stability margin
multiple scenarios
