适应于弱电网的永磁直驱风电机组虚拟惯量协调控制策略

HE Jiafa

您当前的位置：

首页 >

文章列表页 >

适应于弱电网的永磁直驱风电机组虚拟惯量协调控制策略

更新时间：2025-08-13

- 适应于弱电网的永磁直驱风电机组虚拟惯量协调控制策略
- Automation of Electric Power Systems Vol. 42, Issue 9, Pages: 83-90(2018)
- 作者机构：
  
  浙江大学电气工程学院,浙江省,杭州市,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2018
- 稿件说明：
移动端阅览
HE Jiafa. [J]. Automation of electric power systems, 2018, 42(9): 83-90.
DOI：

HE Jiafa. [J]. Automation of electric power systems, 2018, 42(9): 83-90. DOI：

摘要

大规模的风电机组并网使电力系统面临惯量减小与调频能力不足的问题，而风机的虚拟惯量控制是解决这一问题的重要手段。当前，永磁直驱风电机组的虚拟惯量控制主要通过将电网频率引入其功率控制或转矩控制中，来实现风机对电网的功率支撑，风电机组仍采用锁相环实现与电网的同步。但在弱电网下，锁相环的动态性能将恶化，甚至会导致风机的失稳。为此，提出一种适应于弱电网的永磁直驱风电机组虚拟惯量协调控制策略，该控制策略可利用直流电容动态实现直驱风电机组网侧逆变器的并网自同步，从而使直驱风电机组无需经过锁相环并网并且能适应于弱电网运行。此外，该控制策略可利用存储于风机的旋转动能为电网提供虚拟惯量。详细讨论了相应的并网自同步机理及惯量模拟机理，并基于MATLAB/Simulink仿真验证了该协调控制策略的有效性。

Abstract

Large-scale integration of wind turbines(WTs)results in the reduction of the power system inertia and weakens the system's frequency regulation capability. Therefore

the virtual inertia control has been applied in the permanent magnet synchronous generator(PMSG)based wind turbines for grid frequency support

which introduces the frequency signal into the WT's power or torque control. In the virtual inertia control

a phase locked-loop(PLL)is commonly needed to realize grid synchronization of the WTs. However

when connected to weak grids

the dynamics of the PLL can be deteriorated

which may even cause instability of the WTs. To deal with this problem

a virtual inertia coordinated control scheme is proposed for PMSG-based WTs

which utilizes the dynamics of the DC-link capacitor to realize self-synchronization instead of the PLL. Thus

it can ensure the desired stability of PMSG-based WTs when integrated into weak grids. Besides

based on the proposed control scheme

the WTs can release the stored kinetic energy in the rotating mass to supply inertia support under frequency disturbances. Corresponding grid connected self-synchronization and inertia simulation mechanisms are discussed in detail and simulations by MATLAB/Simulink verify effectiveness of the proposed coordinated control scheme.

关键词

Keywords

references

Views

3908

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Time-varying Virtual Inertia and State Estimation of Grid-following Converter Based on Maximum Correntropy Criterion and Polynomial Chaos Kalman Filter

Flywheel Energy Storage Technology and Prospect of Its Grid-forming Application

Evaluation of Minimum Inertia Requirement of Power System Considering Source-Load Inertia Characteristics

Voltage Regulation Control Method of Multiple Electric Springs in DC Microgrid Based on Energy Function Shaping

Related Author

WANG Yuhong

WANG Xueke

WEN Yuling

ZHENG Zongsheng

LIAO Jianquan

LIU Yongyue

TANG Xisheng

LOU Yantao

Related Institution

State Grid Urumqi Power Supply Company

School of Electrical Engineering, Sichuan University

China Electric Power Research Institute

CRRC Zhuzhou Electric Co., Ltd.

School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences

⁰