《电力自动化设备》

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,(9):
	DAI Zhihui,ZHU Huijun,YAN Siqi,SU Huaibo,JIA Ke.Modeling and analysis of DC convergence integration system for PV power station[J].Electric Power Automation Equipment,2018,(9):

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光伏电站直流汇集接入系统的建模分析
戴志辉¹, 朱惠君¹, 严思齐¹, 苏怀波¹, 贾科²
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

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

DOI：10.16081/j.issn.1006-6047.2018.09.015

分类号:TM615;TM46

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)

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

DAI Zhihui¹, ZHU Huijun¹, YAN Siqi¹, SU Huaibo¹, JIA Ke²

1.Hebei Key Laboratory of Distributed Energy Storage and Microgrid, North China Electric Power University, Baoding 071003, China;2.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.

Key words: photovoltaic power generation DC convergence integration BFBIC CDSM-MMC model buildings

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