Reactive Power Optimization Analysis for Provincial Power Network Considering AVC Regulation Characteristics of Substation

YAN Heguizhi; WANG Kewen; LIU Yanhong

doi:10.14044/j.1674-1757.pcrpc.2019.04.004

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Reactive Power Optimization Analysis for Provincial Power Network Considering AVC Regulation Characteristics of Substation

更新时间：2024-09-14

- Reactive Power Optimization Analysis for Provincial Power Network Considering AVC Regulation Characteristics of Substation
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 40, Issue 4, Pages: 16-21(2019)
- 作者机构：
  
  郑州大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2019.04.004
  CLC： TM714
- Published：2019，
- 稿件说明：
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[1]闫何贵枝,王克文,刘艳红.计及变电站AVC调节特性的省网无功优化分析[J].电力电容器与无功补偿,2019,40(04):16-21.

YAN HEGUIZHI, WANG KEWEN, LIU YANHONG. Reactive Power Optimization Analysis for Provincial Power Network Considering AVC Regulation Characteristics of Substation. [J]. Power capacitor & reactive power compensation, 2019, 40(4): 16-21.
[1]闫何贵枝,王克文,刘艳红.计及变电站AVC调节特性的省网无功优化分析[J].电力电容器与无功补偿,2019,40(04):16-21. DOI： 10.14044/j.1674-1757.pcrpc.2019.04.004.

YAN HEGUIZHI, WANG KEWEN, LIU YANHONG. Reactive Power Optimization Analysis for Provincial Power Network Considering AVC Regulation Characteristics of Substation. [J]. Power capacitor & reactive power compensation, 2019, 40(4): 16-21. DOI： 10.14044/j.1674-1757.pcrpc.2019.04.004.

摘要

自动电压控制（AVC）系统的投入极大改善了省网无功电压控制特性。然而

AVC系统自上而下的开放式控制方式较难达到理论上的整体最优。在分析现有省调AVC控制模式和变电站中自动电压控制方式的基础上

采用变电站AVC系统对各离散变量的具体控制方式

进行省调—地调联合无功优化计算。以网损和电压越界最小为目标函数

功率平衡和元件运行边界为约束

建立非线性无功优化模型

并将连续变量和离散变量进行交替迭代。该方法计及变电站的具体调节特性进行迭代优化

理论上能达到整体最优。通过某省级电网实际算例

验证了该方法的可行性。

Abstract

The operation of the automatic voltage control（AVC）system has greatly improved the reactive power and voltage control feature of the provincial network. However

the top-down open control mode of AVC system is difficult to achieve the overall optimization from theory. On the basis of analyzing the existing control mode of AVC system for provincial dispatching and the automatic voltage control mode in the substation

the joint reactive power optimization of the provincial dispatching and regional dispatching is carried out by adopting the specific control mode of discrete variables in the substation AVC system.With the minimum grid loss and voltage limit as the objective function

power balance and component operating boundary as constraints

a nonlinear reactive voltage optimization model is established and continuous variables and discrete variables are subject to alternative iteration. The iteration optimization for the method and specific adjustment feature of substation is performed and overall optimization can be achieved in theory.The feasibility of the method is verified through a practical example of a provincial power grid.

关键词

AVC系统变电站交替迭代优化联合优化离散变量

Keywords

AVC systemsubstationalternative iteration optimizationjoint optimizationdiscrete variables

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