基于惰速点整定的新型同步调相机并网成功率提高方法

曹泽宇; 孙毅超; 丁楠木; 王琦; 蒋琛; 刘亚南

doi:10.7500/AEPS20190610002

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基于惰速点整定的新型同步调相机并网成功率提高方法

研制与开发 | 更新时间：2020-07-14

- 基于惰速点整定的新型同步调相机并网成功率提高方法
- Improvement Method of Grid-connection Success Rate for New-type Synchronous Condenser Based on Idle Speed Point Setting
- 电力系统自动化-方正平台 2020年第6期页码：138-145
- 作者机构：
  
  1. 南京师范大学南瑞电气与自动化学院，江苏省南京市 210023
  2. 江苏方天电力技术有限公司，江苏省南京市 211102
- 作者简介：
  
  曹泽宇（1994—），男，硕士研究生，主要研究方向：电力电子技术及其在电力系统中的应用。
  孙毅超（1987—），男，通信作者，博士，讲师，硕士生导师，主要研究方向：电力电子技术及其在电力系统中的应用。E-mail：yichao.sun1987@gmail.com
  丁楠木（1995—），男，硕士研究生，主要研究方向：电力电子技术及其在电力系统中的应用。
- 基金信息：
  
  江苏省研究生科研与实践创新计划资助项目(KYCX18_1231)
- DOI：10.7500/AEPS20190610002
  中图分类号：
- 收稿日期：2019-06-10，
  
  修回日期：2019-09-04，
  
  网络出版日期：2020-02-18，
  
  纸质出版日期：2020-03-25
- 稿件说明：
移动端阅览
曹泽宇,孙毅超,丁楠木等.基于惰速点整定的新型同步调相机并网成功率提高方法[J].电力系统自动化,2020,44(06):138-145.

CAO Zeyu,SUN Yichao,DING Nanmu,et al.Improvement Method of Grid-connection Success Rate for New-type Synchronous Condenser Based on Idle Speed Point Setting[J].Automation of Electric Power Systems,2020,44(06):138-145.
曹泽宇,孙毅超,丁楠木等.基于惰速点整定的新型同步调相机并网成功率提高方法[J].电力系统自动化,2020,44(06):138-145. DOI： 10.7500/AEPS20190610002.

CAO Zeyu,SUN Yichao,DING Nanmu,et al.Improvement Method of Grid-connection Success Rate for New-type Synchronous Condenser Based on Idle Speed Point Setting[J].Automation of Electric Power Systems,2020,44(06):138-145. DOI： 10.7500/AEPS20190610002.

摘要

目前国内的新型同步调相机多采用惰速并网方式，该惰速过程不可控、不可逆，提高在该并网方式下的并网成功率是节约经济成本的关键所在。文中考虑调相机完整的惰速过程，计及该过程中的主要损耗，通过分析调相机侧与电网侧频率差、相角差的变化规律，得到在惰速开始时刻调相机侧与电网侧相角差对并网成功率的影响。通过进一步分析惰速开始时刻调相机转速对并网成功区域起始位置的影响规律，提出一种惰速点转速的整定方法，在严格满足并网条件的前提下，提高了并网成功率。结合算例，验证了惰速点整定方法的可行性，并且通过统计准确预测出完整的迭代次数及整定后的最终惰速点，减少了整定过程中的信息传输量。

Abstract

At present

the grid-connection process of most new-type synchronous condensers in China is achieved in the idle speed mode

which is uncontrollable and irreversible. Therefore

the improvement of the grid-connection success rate of the grid-connection process is the key to minimize the corresponding economic cost. Considering the complete idle speed process of the new-type synchronous condenser and the main loss during the process

this paper analyzes the change rule of frequency difference and phase angle difference between the synchronous condenser and the power grid. Then the influence of the phase angle difference between the synchronous condenser and the power grid on the grid-connection success rate at the start of idle speed is obtained. Based on the analysis of the influence of the condenser speed on the initial position of grid-connection success area

the adjustment method of the speed at the idle speed point is proposed

which is able to improve the grid-connection success rate with satisfaction of the strict grid-connection requirements. Finally

the example results validate the feasibility of the proposed idle speed point setting method

and the complete iteration times and the final idle speed point are predicted accurately by statistics

while the required information during the setting process is significantly reduced.

关键词

Keywords

references

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