光伏电站直流汇集接入系统的建模分析  

Modeling and analysis of DC convergence integration system for PV power station

作　　者：戴志辉[1] 朱惠君 严思齐[1] 苏怀波 贾科[2] DAI Zhihui;ZHU Huijun;YAN Siqi;SU Huaibo;JIA Ke(Hebei Key Laboratory of Distributed Energy Storage and Microgrid,North China Electric Power University,Baoding 071003,China;State Key Laboratory of Alternate Electrical Power System with,Renewable Energy Sources North China Electric Power University,Beijing 100084,China)

机构地区：[1]华北电力大学河北省分布式储能与微网重点实验室,河北保定071003 [2]华北电力大学新能源电力系统国家重点实验室,北京100084

出　　处：《电力自动化设备》2018年第9期99-106,共8页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51877084);国家重点研发计划专项课题(2016YFB0900203);中央高校基本科研业务费专项资金资助项目(2017MS096);河北省自然科学基金资助项目(E2018502063)~~

摘　　要：与传统的光伏交流接入系统相比,光伏直流汇集接入系统具有控制方式简单、系统损耗较小、光伏利用率高的特点。以某市一光伏直流汇集接入系统为例,给出光伏直流汇集接入系统的拓扑结构;构建光伏电池、多模块Boost全桥隔离变流器(BFBIC)及箝位双子模块型模块化多电平变流器(CDSM-MMC)的PSCAD模型。提出光伏变流站的2种控制策略,通过仿真对比分析2种控制策略的抗光照干扰能力及光伏发电电能输送能力,并给出控制策略的使用建议。Compared with the traditional AC integration system of PV （PhotoVohaic） power generation, the DC con- vergence integration system of PV power generation has the characteristics of simple control mode, small system loss and high PV utilization rate. A DC convergence integration system of PV power generation in a city is taken as an example,and its topology is given. The PSCAD-based models of PV cells, multi-module BFBIC （ Boost Full-Bridge Isolation Converters） and CDSM-MMC （Clamp Double SubModule based Modular Multilevel Converter） are con- structed. Two control strategies of PV converter stations are proposed, and their anti-light interference ability and PV power transmission capability are compared and analyzed via simulation. The suggestions of the control strategies are given for utilization.

关 键 词：光伏发电 直流汇集接入 Boost全桥隔离变流器 箝位双子模块型模块化多电平变流器 建模 

分 类 号：TM615[电气工程—电力系统及自动化] TM46