Small Capacitive Cascade Energy Storage System Based on Current Feed-forward Control

doi:10.14044/j.1674-1757.pcrpc.2021.03.027

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Small Capacitive Cascade Energy Storage System Based on Current Feed-forward Control

更新时间：2024-09-14

- Small Capacitive Cascade Energy Storage System Based on Current Feed-forward Control
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 42, Issue 3, Pages: 170-175(2021)
- 作者机构：
  
  1. 上海电力大学电气工程学院
  2. 国网江苏省电力有限公司丹阳供电分公司
  3. 国网江苏省电力有限公司营销服务中心(计量中心)
  4. 国网江苏省电力有限公司苏州供电分公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2021.03.027
  CLC： TM46
- Published：2021，
- 稿件说明：
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[1]王晓旭,高文杰,徐超,张益飞.基于电流前馈控制的小电容链式储能系统[J].电力电容器与无功补偿,2021,42(03):170-175.

Small Capacitive Cascade Energy Storage System Based on Current Feed-forward Control. [J]. Power capacitor & reactive power compensation, 2021, 42(3): 170-175.
[1]王晓旭,高文杰,徐超,张益飞.基于电流前馈控制的小电容链式储能系统[J].电力电容器与无功补偿,2021,42(03):170-175. DOI： 10.14044/j.1674-1757.pcrpc.2021.03.027.

Small Capacitive Cascade Energy Storage System Based on Current Feed-forward Control. [J]. Power capacitor & reactive power compensation, 2021, 42(3): 170-175. DOI： 10.14044/j.1674-1757.pcrpc.2021.03.027.

摘要

级联H桥链式结构可有效解决中低压储能系统运行和管理问题

而链式储能系统各子模块输出功率含有低频波动电压

因此工程上多采用大电容以降低电容波动电压

避免设备过电压。本文提出了一种适用于具有双向DC-DC链式储能系统的电流前馈控制法

通过前级DC-DC变换器产生二倍频波动功率输出

降低链式结构模块电容二倍频功率分量

从而可减少直流电容电压波动

大幅降低电容容值。本文详述了电流前馈控制实现机理

并通过实验有效验证了所提方法的有效性。

Abstract

Cascade H bridge chain structure can solve effectively the issues of operation and management of medium and low voltage energy storage system

while the output power of each submodel of chain energy storage system contains low frequency fluctuating voltage

therefore large capacitor is mostly used in the proejcts so to reduce the capacitive fluctuation voltage and avoid over voltage of equipment. In this paper

a kind of current feed-forward control algorithm for bidirectional DC-DC chain energy storage system is proposed. 2 times of frequency fluctuation power output is generated by the forestage DC-DC converter so to reduce the 2 times frequency power component of capacitor of the chain structure model

thus decrease DC capacitive voltage fluctuation and reducing the capacitance significantly. The achievement mechanism of the current feed-forward control is described in detail in this paper and the effectiveness of the proposed method is verified by experiment.

关键词

DC-DC变换器储能变换系统级联H桥电压波动电流前馈控制

Keywords

DC-DC converterenergy storage conversion systemcascaded H-bridgevoltage fluctuationcurrent feed-forward control

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Related Institution

Chint Electric Co., Ltd.

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武汉430080

武汉钢铁设计研究总院武汉430072

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