Research on Voltage Stabilization Control Technology of LCL-type PMSG-PWM Rectification System

Yukuan RAN; Mingzhong QIAO; Keke YANG

doi:10.12382/bgxb.2025.0756

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Research on Voltage Stabilization Control Technology of LCL-type PMSG-PWM Rectification System

更新时间：2026-02-10

- Research on Voltage Stabilization Control Technology of LCL-type PMSG-PWM Rectification System
- Acta Armamentarii Vol. 46, Issue S2, Pages: 250756(2025)
- 作者机构：
  
  1. 海军工程大学, 湖北武汉 430000
  2. 河南工业职业技术学院自动化工程学院, 河南南阳 473000
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2025.0756
  CLC：
- Received：09 August 2025，
  
  Online First：03 February 2026，
  
  Published：2025
- 稿件说明：
移动端阅览
Yukuan RAN, Mingzhong QIAO, Keke YANG. Research on Voltage Stabilization Control Technology of LCL-type PMSG-PWM Rectification System[J]. Acta Armamentarii, 2025, 46(S2): 250756.
DOI：

Yukuan RAN, Mingzhong QIAO, Keke YANG. Research on Voltage Stabilization Control Technology of LCL-type PMSG-PWM Rectification System[J]. Acta Armamentarii, 2025, 46(S2): 250756. DOI： 10.12382/bgxb.2025.0756.

摘要

海流能发电技术中永磁同步发电机(Permanent Magnet Synchronous Generator

PMSG)运行工况复杂、转速变化频繁

为实现高性能稳压控制

对PMSG与脉宽调制(Pulse Width Modulation

PWM)整流器构成的PMSG-PWM整流系统结构及控制策略进行优化改进。针对PMSG定子电流谐波抑制问题

引入LCL滤波器滤除PWM整流器馈入的高次谐波;针对传统滑模趋近律抖振问题

提出一种改进趋近律

并分析其抖振抑制原理;针对PMSG转速和直流负载变化引入的扰动问题

设计锁相环观测器

实现总扰动的在线估计与补偿

提高系统的鲁棒性能。仿真结果和试验结果表明

LCL型PMSG-PWM整流系统在新控制策略下

稳定运行时直流输出电压抖振抑制效果明显

定子电流谐波含量大幅度降低;扰动条件下直流输出电压鲁棒性能显著提高。

Abstract

In the ocean current power generation technology

theoperating conditions of permanent magnet synchronous generator (PMSG) is complex

and its rotational speed changes frequently.In order to achieve high-performance voltage stabilization control

the structure and control strategy of the PMSG-PWM (pulse width modulation) rectification system are optimized and improved.For the harmonic suppression of PMSG stator current

a LCL filter is introduced to filter out the high harmonics fed from PWM rectifier.For the jittering problem of the traditional sliding mode convergence law

an improved exponential convergence law is proposed

and its jittering suppression principle is analyzed.For the perturbation problem caused by the changes in PMSG speed and direct current (DC) load

a phase-locked loop observer is designed to realize the online estimation and compensation of total perturbation and disturbance

which improves the robust performance of the system.Simulated and experimental results show that the LCL-type PMSG-PWM rectification system has a significant suppression effect of DC output voltage jittering during stable operation under the proposed control strategy

and the harmonic content of stator current is reduced significantly; the robustness of DC output voltage is improved under the perturbation conditions.

关键词

Keywords

references

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