电力与能源
電力與能源
전력여능원
Power and Energy
2014年
4期
521-524,532
,共5页
陈澜%杨苹%周少雄%王灿%尹旭
陳瀾%楊蘋%週少雄%王燦%尹旭
진란%양평%주소웅%왕찬%윤욱
海上风电场%无功补偿%电压跌落%功率传输
海上風電場%無功補償%電壓跌落%功率傳輸
해상풍전장%무공보상%전압질락%공솔전수
Offshore wind farms%Reactive power compensation%Voltage drop%Power transmission
电网电压跌落时海上风电系统无功补偿容量的需求，是确定海上风电系统无功补偿方案的关键。基于海上风电系统的典型拓扑建立了海上风电系统的功率传输模型，在此基础上分析了电网电压跌落时，风电场有功功率、无功功率以及电网电压跌落幅值对海上风电系统的无功补偿容量的影响，以确定海上风电系统无功补偿方案。最后对一个具体的海上风电场进行 PSCAD 仿真分析，结果表明：电网电压跌落的幅值、电网电压跌落时风电场输出的有功功率和无功功率对海上风电系统的无功补偿容量有着重要的影响，并因此而影响海上风电系统的动态过程控制。
電網電壓跌落時海上風電繫統無功補償容量的需求，是確定海上風電繫統無功補償方案的關鍵。基于海上風電繫統的典型拓撲建立瞭海上風電繫統的功率傳輸模型，在此基礎上分析瞭電網電壓跌落時，風電場有功功率、無功功率以及電網電壓跌落幅值對海上風電繫統的無功補償容量的影響，以確定海上風電繫統無功補償方案。最後對一箇具體的海上風電場進行 PSCAD 倣真分析，結果錶明：電網電壓跌落的幅值、電網電壓跌落時風電場輸齣的有功功率和無功功率對海上風電繫統的無功補償容量有著重要的影響，併因此而影響海上風電繫統的動態過程控製。
전망전압질락시해상풍전계통무공보상용량적수구，시학정해상풍전계통무공보상방안적관건。기우해상풍전계통적전형탁복건립료해상풍전계통적공솔전수모형，재차기출상분석료전망전압질락시，풍전장유공공솔、무공공솔이급전망전압질락폭치대해상풍전계통적무공보상용량적영향，이학정해상풍전계통무공보상방안。최후대일개구체적해상풍전장진행 PSCAD 방진분석，결과표명：전망전압질락적폭치、전망전압질락시풍전장수출적유공공솔화무공공솔대해상풍전계통적무공보상용량유착중요적영향，병인차이영향해상풍전계통적동태과정공제。
The requirement of reactive power compensation capacity for offshore wind power systems is the key to determine the reactive power compensation scheme of offshore wind power systems when the grid voltage sags.Based on the typical topology of offshore wind power systems,the paper established the power transmis-sion model of offshore wind power systems,on the basis of which effects that the wind farm active power,re-active power and the amplitude of grid voltage sag have on reactive power compensation capacity of offshore wind power systems when the grid voltage sagged was analyzed to determine reactive power compensation scheme of offshore wind power systems.Finally,the results of PSCAD simulation analysis for a specific off-shore wind farm showed that the amplitude of grid voltage sag,output active power and reactive power of wind farms when the grid voltage sagged had an important influence on reactive power compensation capacity of off-shore wind power systems ,and thus affect the dynamic process control of offshore wind power systems.
