[1]刘旻超.基于滑模控制的两级式储能变换器控制策略研究[J].镇江高专学报,2020,33(01):44-48.
 LIU Minchao.Research on control strategy of twostage energy storage converter based on sliding mode control[J].Journal of Zhenjiang College,2020,33(01):44-48.
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基于滑模控制的两级式储能变换器控制策略研究()
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《镇江高专学报》[ISSN:/CN:]

卷:
33
期数:
2020年01期
页码:
44-48
栏目:
科技研究与开发
出版日期:
2020-05-10

文章信息/Info

Title:
Research on control strategy of twostage energy storage converter based on sliding mode control
文章编号:
1008-8148(2020)01-0044-05
作者:
刘旻超
国网江苏省电力有限公司 技能培训中心,江苏 苏州215004
Author(s):
LIU Minchao
Technician Training Center, State Grid Jiangsu Electric Power Co., Ltd., Suzhou 215004, China
关键词:
分布式发电储能系统系统带宽匹配级联稳定性滑模控制
Keywords:
distributed generation energy storage system system bandwidth matching cascade stability sliding mode control
分类号:
TM464
文献标志码:
A
摘要:
由双向DC/DC变换器、微网逆变器组成的级联系统中,选择buckboost电路为前级变换器,当其工作于升压状态时,由于boost变换器小信号模型中存在1个低频右半平面(RHP)零点,使得前级系统带宽变窄,仅采用单电压闭环控制可能会引起前后级系统带宽不匹配,导致直流母线电压产生低频振荡且系统响应速度慢,级联系统稳定性差。采用滑模控制方法设计前级变换器系统,仿真显示,直流母线电压无低频振荡,响应速度较快,系统稳定性提高。
Abstract:
In a cascade system consisting of a bidirectional DC/DC converter and a microgrid inverter, a buckboost circuit is selected as the first stage converter. When it operates at boost mode, due to the presence of a lowfrequency right halfplane (RHP) zero in the smallsignal model of the boost converter, the bandwidth of the first stage system is narrowed, and only the singlevoltage closedloop control may cause the bandwidth of the first and second system to be mismatched, it will lead to low frequency oscillation of DC bus voltage, slow response speed and poor stability of cascade system. The former converter system is designed by using sliding mode control method. The simulation results show that the DC bus voltage has no low frequency oscillation, the response speed is fast and the system stability is improved.

参考文献/References:

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备注/Memo

备注/Memo:

收稿日期: 2019-10-08

作者简介: 刘旻超(1995—),女,江苏靖江人,硕士,主要从事新能源发电研究。

更新日期/Last Update: 2020-05-08