组团上网的富含小水电站配网电压改善策略

Distribution network voltage improvement strategy for abundant small hydropower stations with cluster access

针对小水电站以"串灯笼"方式接入10 kV配网由于感性无功过剩导致的线路电压过高问题,提出"组团上网"优化方式,并以9节点模型为研究模型对各种接线方式进行深入分析。结合南方地区电网富含小水电的特点,对两条较具代表性的线路进行仿真分析,从经济可行性和电压质量改善效果两方面综合考虑,得出各条线路对应的电压改善策略.

According to the problem of excessively high line voltage caused by the excess inductive reactive in the 10 kV distribution network which is connected to abundant small hydropower directly us＂ lantern strion＂ cormection mode, the optimize group connection pattern was proposed, and taking the 9-node model as the research model different connection modes was deeply analyzed in this paper. Combined with the chanecteristics of the Southern area electric power grid tchich is rich in smallhydro power, Two typical lines are Simulated and analyzed. Considering the two askects of economic feasibility ang voltage quality improvement effect, and it came to the own best improvement measures for each line.