三相光伏并网逆变电源的设计实现

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关键词：三相光伏并网；Boost电路；最大功率点跟踪；PID控制；锁相环；空间矢量脉宽调制中图分类号：TP39；TM615 文献标识码：A 文章编号：2096-4706（2025）23-0018-05

Abstract：To meet the requirements of medium and large-scale photovoltaic projects for high-power transmission capability，high-qualityelectricenergyoutput，andgood gridcompatibility，thispaperconductsthedesignandresearchofa thre-phase photovoltaic grid-connected inverter power suply.I establishes anoverallsystemarchitecture including“nergy colection，poweronversion，ontrolregulationandgridadaptation”andfocusesondesigningaDC-DCBoostcircitbased ontheBoosttopologyandathree-phaseful-bridgeDC-ACinvertermaincircuit.Thesystemadopts theMaximumPowerPoint Tracking （MPPT）algorithmbasedonthe incrementalconductance method，Phase-LockedLoop（PLL）Space VectorPulse Width Modulation （SVPWM），andPIDdouble closed-loopcontrol strategy toachieve maximum powercaptureofthe PVarrayand high-qualitycontrolofgridcoectedelectriceergyAsystemsiulatiomodelisonstructedinAAB/imuinkdtests undervariousconditionssuchasstandardoperatingconditions，suddenchanges inillmination，andgrid voltage fuctuations confirm that the system can stably output 380V/50Hz three-phase sinusoidal alternating current.The research results have a positive effect on improving the application of photovoltaic power generation systems.

Keywords： three-phase photovoltaic grid-connection; Boost circuit; MPPT; PID control; PLL; SVPWM

0 引言

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