电网技术
電網技術
전망기술
POWER SYSTEM TECHNOLOGY
2011年
11期
141-145
,共5页
感性无功补偿%小运行方式%电压质量%无功功率%优化
感性無功補償%小運行方式%電壓質量%無功功率%優化
감성무공보상%소운행방식%전압질량%무공공솔%우화
inductive reactive power compensation%low load operation mode%voltage quality%optimization of reactive power
提出地区电网进行感性无功补偿优化规划的思路和方法,建立了兼顾电压质量、投资成本和运行费用全网优化的地区电网感性无功补偿模型,以解决由于小水电等分布式电源大量接入时在小运行方式下地区电网无功过剩电压偏高的问题。结合某地实际电网,进行了感性无功优化计算,比较了所提方法与工程估算法、平均功率因数法等方法的结果。仿真结果表明,按照优化方案进行感性无功补偿配置后,该地区的无功电压水平显著改善,取得了较好的经济效益和社会效益。
提齣地區電網進行感性無功補償優化規劃的思路和方法,建立瞭兼顧電壓質量、投資成本和運行費用全網優化的地區電網感性無功補償模型,以解決由于小水電等分佈式電源大量接入時在小運行方式下地區電網無功過剩電壓偏高的問題。結閤某地實際電網,進行瞭感性無功優化計算,比較瞭所提方法與工程估算法、平均功率因數法等方法的結果。倣真結果錶明,按照優化方案進行感性無功補償配置後,該地區的無功電壓水平顯著改善,取得瞭較好的經濟效益和社會效益。
제출지구전망진행감성무공보상우화규화적사로화방법,건립료겸고전압질량、투자성본화운행비용전망우화적지구전망감성무공보상모형,이해결유우소수전등분포식전원대량접입시재소운행방식하지구전망무공과잉전압편고적문제。결합모지실제전망,진행료감성무공우화계산,비교료소제방법여공정고산법、평균공솔인수법등방법적결과。방진결과표명,안조우화방안진행감성무공보상배치후,해지구적무공전압수평현저개선,취득료교호적경제효익화사회효익。
The thinking and method to implment optimal configuration of inductive reactive power compensation for regional power network are proposed, and an inductive reactive power compensation model for regional power network, in which the voltage quality, cost of investment and operating cost optimization of whole netword are' considered, is built to solve the problem, namely in regional power network the voltage is near the upper limit that is caused by the surplus of capacitive reactive power due to grid-connection of large amount of distributed generations (DGs), for instance the small hydropower stations, during low load operation mode. The calculation of inductive reactive power optimization is performem for a certain regional power network, and the obtained results are compared with those results calculated by project estimation method and average power factor method. Simulation results show that after the optimal configuration of inductive reactive power compensation according to the proposed optimization scheme, the reactive power level and voltage level in the simulated region are evidently improved.