风储直流微网孤岛运行控制研究
摘要:针对偏远地区电力资源缺乏且风能充足的特点，设计了一种孤岛运行的小型风储直流微网系统。该系统采用双极性直流母线结构，降低了母线对地电压，同时满足各种变换器和负荷对不同电压等级的要求，使系统更加安全可靠。利用电压平衡器保证了正负母线电压平衡，并分别设计了风力发电单元和混合储能单元(hybrid energy storage system，HESS)在不同工况下的最优工作方式。将该小型风储直流微网系统运行分为五种模式，通过对风机、混合储能以及负荷进行协调控制，确保直流母线电压的稳定和负荷的可靠供电。最后通过仿真验证了系统运行的稳定性和控制策略的可行性。
Abstract：This paper designs a small-scale wind power and energy storage DC microgrid system operating in autonomous conditions, in view of the shortage of power energy and the abundance of wind energy at remote areas. The bipolar-type distribution system can reduce the bus voltage to the ground and meet the requirements of various converters and loads. The voltage balancer contributes to balance the bus voltage between the positive and negative values. The wind turbine and hybrid energy storage system (HESS) operate in optimal models with different conditions. The system operation is divided into five patterns, and also the wind turbine, HESS and loads are coordinated controlled, which can ensure the stability of the DC bus voltage and the reliability of the power supply. The simulation results validate that this system operation is reliable and the control strategy is effective.
标题：风储直流微网孤岛运行控制研究
title:Study on Autonomous Operation and Control of Wind Power and Energy Storage DC Microgrid
作者：陈宇豪, 王磊, 杨宇, 米芝昌, 曹国栋, 韩肖清
authors:CHEN Yuhao , WANG Lei , YANG Yu, MI Zhichang , CAO Guodong, HAN Xiaoqing
关键词：直流微网,双极性结构,协调控制,电压平衡器,混合储能系统(HESS),
keywords:DC microgrid,bipolar-type,coordinated control,voltage balancer,hybrid energy storage system(HESS),
发表日期：2016-08-25
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