四川电力技术
四川電力技術
사천전력기술
SICHUAN ELECTRIC POWER TECHNOLOGY
2013年
4期
46-49,94
,共5页
配电网%潮流计算%分布式发电%风力发电%改进的粒子群算法
配電網%潮流計算%分佈式髮電%風力髮電%改進的粒子群算法
배전망%조류계산%분포식발전%풍력발전%개진적입자군산법
distribution network%power flow calculation%distributed generation%wind power%improved particle swarm algo-rithm
研究了风力发电并网的潮流优化问题,分析了风力发电在潮流计算中常用的模型和方法。并针对风力发电机组并网需要吸收电网大量无功造成配电网损耗增大的缺点,采用并联电容器对配电网无功进行补偿。在满足风电场无功补偿的前提下,把风机的异步发电机组视为PQ节点,应用前推回带法计算了风机并网后的配电网潮流,在此基础上采用改进的粒子群算法对配电网无功补偿电容器进行了优化。重点讨论了风力发电并网对配电网的网损和电压的影响,并在配电网分析常用的33母线系统上进行了仿真计算,得到了较好的实验结果。
研究瞭風力髮電併網的潮流優化問題,分析瞭風力髮電在潮流計算中常用的模型和方法。併針對風力髮電機組併網需要吸收電網大量無功造成配電網損耗增大的缺點,採用併聯電容器對配電網無功進行補償。在滿足風電場無功補償的前提下,把風機的異步髮電機組視為PQ節點,應用前推迴帶法計算瞭風機併網後的配電網潮流,在此基礎上採用改進的粒子群算法對配電網無功補償電容器進行瞭優化。重點討論瞭風力髮電併網對配電網的網損和電壓的影響,併在配電網分析常用的33母線繫統上進行瞭倣真計算,得到瞭較好的實驗結果。
연구료풍력발전병망적조류우화문제,분석료풍력발전재조류계산중상용적모형화방법。병침대풍력발전궤조병망수요흡수전망대량무공조성배전망손모증대적결점,채용병련전용기대배전망무공진행보상。재만족풍전장무공보상적전제하,파풍궤적이보발전궤조시위PQ절점,응용전추회대법계산료풍궤병망후적배전망조류,재차기출상채용개진적입자군산법대배전망무공보상전용기진행료우화。중점토론료풍력발전병망대배전망적망손화전압적영향,병재배전망분석상용적33모선계통상진행료방진계산,득도료교호적실험결과。
The problem about power flow optimization of distribution network with wind power generators is studied , and the commonly used models and methods in power flow calculation of wind power generation are also analyzed .Considering that wind power generators integrated with the grid may produce much active power loss by absorbing a lot of reactive power , so shunt capacitor is adopted to compensate the distribution network .Under the premise of satisfying the reactive power compen-sation, the asynchronous generators of wind farms are treated as PQ node to calculate the power flow of distributed network af -ter the integration of wind power generators using the forward ad backward method .On this basis, the improved particle swarm algorithm is adopted to optimize the reactive compensating capacitor .The focuses are on the influence of wind power integra-tion on the power loss and voltage level of distributed network , and the validity and practicability of the proposed method are simulated by an example of wind farms connected to 33 bus system , which has a satisfactory and acceptable result .