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光伏电站直流汇集接入系统的建模分析
引用本文:戴志辉,朱惠君,严思齐,苏怀波,贾科.光伏电站直流汇集接入系统的建模分析[J].电力自动化设备,2018,38(9).
作者姓名:戴志辉  朱惠君  严思齐  苏怀波  贾科
作者单位:华北电力大学河北省分布式储能与微网重点实验室;华北电力大学新能源电力系统国家重点实验室
基金项目: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。

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

Modeling and analysis of DC convergence integration system for PV power station
DAI Zhihui,ZHU Huijun,YAN Siqi,SU Huaibo and JIA Ke.Modeling and analysis of DC convergence integration system for PV power station[J].Electric Power Automation Equipment,2018,38(9).
Authors:DAI Zhihui  ZHU Huijun  YAN Siqi  SU Huaibo and JIA Ke
Affiliation:Hebei Key Laboratory of Distributed Energy Storage and Microgrid, North China Electric Power University, Baoding 071003, China,Hebei Key Laboratory of Distributed Energy Storage and Microgrid, North China Electric Power University, Baoding 071003, China,Hebei Key Laboratory of Distributed Energy Storage and Microgrid, North China Electric Power University, Baoding 071003, China,Hebei Key Laboratory of Distributed Energy Storage and Microgrid, North China Electric Power University, Baoding 071003, China and State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 100084, China
Abstract:Compared with the traditional AC integration system of PV(PhotoVoltaic) power generation, the DC convergence 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 constructed. 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.
Keywords:photovoltaic power generation  DC convergence integration  BFBIC  CDSM-MMC  model buildings
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