%0 Journal Article
%T 三相电压源型逆变器级联的静止同步补偿器
%A 伏祥运
%A 王建赜
%A 张小聪
%A 曾繁鹏
%A 纪延超
%J 电网技术
%P 72-76
%D 2006
%X Astaticsynchronouscompensator(STATCOM)basedonthree-phasecascadedvoltagesourceinverter(TC-VSI)isproposed.MaincircuitoftheproposedSTATCOMiscomposedbystandardTC-VSI,whichpossessesseparatecapacitorsatDCsideandcascadestosinglephasecouplingtransformerwhosecapacityis1/3ofSTATCOM’scapacity.TheadvantagesoftheSTATCOMareasfollowinglowswitchstress,smallerDCvoltagerippleandgoodoutputwaveform.Usingphaseshiftingpulse-widthmodulation(PS-PWM)technology,theswitchingfrequencyofinvertercanbereducedwhilethequalityofoutputvoltageremainsstationary,andthebasicfrequencybandofharmonicsinoutputvoltagecanberaisedtoaboutthreetimesoftheswitchingfrequency.TheresponsespeedofSTATCOMcanbeimprovedbyuseofd-cdecoupledcontroller.ConsideringthattheparametersofinvertersinSTATCOMmaybenon-uniform,thevoltagebalancingcontrolsareperformedattheDCsideofeachinverter.ThecorrectnessandeffectivenessoftheproposedSTATCOManditscontrolmethodareverifiedbysimulationexperiments.
%K power
%K system
%K reactive
%K power
%K compensation
%K static
%K synchronous
%K compensator(STATCOM)
%K three-phase
%K cascaded
%K voltage
%K source
%K inverter(TC-VSI)
%K cascading
%K phase-shift
%K pulse
%K width
%K modulation(PS-PWM)
%U http://www.dwjs.com.cn/CN/abstract/abstract21240.shtml