Research on Lyapunov control strategy of MMC-UPFC based on unbalanced grid in novel power system

YE Ying; XU Bingyan; LIU Zhongping; CHENG Qiming; TANG Bo

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Research on Lyapunov control strategy of MMC-UPFC based on unbalanced grid in novel power system

更新时间：2026-03-30

- Research on Lyapunov control strategy of MMC-UPFC based on unbalanced grid in novel power system
- Vol. 63, Issue 3, (2026)
- 作者机构：
  
  1. 国网上海金山供电公司
  2. 上海电力大学自动化工程学院
  3. 上海电力大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2026
- 稿件说明：
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YE Ying, XU Bingyan, LIU Zhongping, et al. Research on Lyapunov control strategy of MMC-UPFC based on unbalanced grid in novel power system[J]. 2026, 63(3).
DOI：

YE Ying, XU Bingyan, LIU Zhongping, et al. Research on Lyapunov control strategy of MMC-UPFC based on unbalanced grid in novel power system[J]. 2026, 63(3). DOI：

摘要

针对新型电力系统下模块化多电平变换器(modular multilevel converter

MMC)统一潮流变换器(unified power flow converter

UPFC)的潮流跟踪性能优化问题

提出了一种不平衡电网下MMC-UPFC 的非线性Lyapunov 控制方法。文中根据MMC-UPFC 的拓扑结构

建立数学模型

分析它的内部特性

设计了MMCUPFC不平衡条件下正、负序的Lyapunov 控制器

并进行稳定性证明

经过子模块均压控制

通过载波移相调制将信号传送给MMC

搭建MMC-UPFC 仿真系统进行仿真验证

在两种不同工况下将Lyapunov 控制与PI控制效果作比较

验证了文中所提的Lyapunov 控制的正确性和有效性。

Abstract

Aiming at the power flow tracking performance optimization problem of modular multilevel converter (MMC)-unified power flow converter (UPFC) in novel power system

a Lyapunov nonlinear control strategy of MMC-UPFC under unbalanced grid is proposed in this paper. Firstly

according to the MMC-UPFC topology

the MMC-UPFC mathematical model is established and its internal characteristics are analyzed. Secondly

the positive and negative sequence Lyapunov controllers of MMC-UPFC under unbalanced conditions are designed and the stability is proved. Then

the signal is transmitted to the MMC by the carrier phase shift modulation after the sub-module voltage equalization control. Finally

the MMC-UPFC simulation system is built for simulation verification

the effects of Lyapunov control and PI control are compared to verify the correctness and effectiveness of the proposed Lyapunov control under two different operating conditions.

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