基于感应电动机网荷互馈特性的暂态电压失稳机理探析

ZHANG Wenchao

您当前的位置：

首页 >

文章列表页 >

基于感应电动机网荷互馈特性的暂态电压失稳机理探析

更新时间：2025-08-13

- 基于感应电动机网荷互馈特性的暂态电压失稳机理探析
- Automation of Electric Power Systems Vol. 41, Issue 7, Pages: 8-14(2017)
- 作者机构：
  
  南瑞集团公司(国网电力科学研究院)(), 北京市,北京,102200
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2017
- 稿件说明：
移动端阅览
ZHANG Wenchao. [J]. Automation of electric power systems, 2017, 41(7): 8-14.
DOI：

ZHANG Wenchao. [J]. Automation of electric power systems, 2017, 41(7): 8-14. DOI：

摘要

正确认识电压失稳机理是进一步对电力系统电压稳定问题进行深入研究的关键。分析了网络视在功率传输特性和感应电动机负荷特性，揭示了以感应电动机为核心的暂态电压失稳正反馈动态过程。将与滑差相关的感应电动机负荷及网络视在功率传输的相互作用关系定义为感应电动机网荷互馈特性，并据此进一步分析了含有感应电动机负荷的系统电压崩溃过程，明确了基于感应电动机网荷互馈特性的暂态电压失稳机理，提出了感应电动机负荷电压失稳判据，构建了简单系统算例验证分析结果。分析表明，以感应电动机为核心的电压失稳正反馈动态过程是系统暂态电压失稳的重要环节；将感应电动机故障切除时滑差对应的恢复电压作为判断感应电动机电压稳定的必要条件，能够提高暂态电压失稳判定的准确性与适用性。所述电压稳定判据为预防电压失稳现象的发生和制定电压失稳解决措施提供了有力的理论支撑。

Abstract

To correctly reveal how voltage instability works is the key to in-depth study of power system voltage stability. The characteristics of network apparent power transmission and induction motor load are analyzed

and the transient voltage instability positive feedback dynamic process centering on the induction motor is discussed. The relationship between the induction motor load and apparent power transmission of network is defined as crossfeed characteristics between power network and the load of induction motor. Accordingly

the process of voltage collapse with the induction motor load is further accounted for. In addition

the transient voltage instability process based on the crossfeed characteristics is further clarified

and an induction motor load voltage instability criterion is proposed. A simple system model is built to verify the result. The analysis shows that the positive feedback dynamic process centering on the induction motor is an important step for the system transient voltage instability. When clearing the fault with the induction motor

the slip's corresponding restored voltage is used as a necessary condition for induction motor voltage stability judgment

improving the accuracy and applicability. A powerful theoretical support is offered by the proposed voltage stability criterion to prevent voltage instability and put forward related countermeasures.

关键词

Keywords

references

Views

2517

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Coordinated Optimal Reactive Power Control of Renewable Energy Base Considering Grid-forming Energy Storage Station

Stable Operation Capability Evaluation for Renewable Energy Station with Grid-forming Power Sources

Mechanism Analysis of Power System Transient Voltage Instability Dominated by Low Voltage Ride-through of Renewables

Optimization and Control of Voltage Security in Active Distribution Network Considering Global Correlation

Analysis on Transient Voltage Stability of Power System with Photovoltaic Based on Monotone System Theory

Related Author

LIN Li

MA Xiaohan

DING Wenmin

MA Zihan

HUANG Meng

FU Xikun

JIA Yichao

WANG Biyang

Related Institution

School of Electrical and Electronic Engineering, North China Electric Power University

Hubei Key Laboratory of Power Equipment & System Security for Integrated Energy

School of Electrical Engineering and Automation, Wuhan University

China Electric Power Research Institute

State Grid Shaanxi Electric Power Co., Ltd.

⁰