机组涉网保护与高频切机措施优化配置方案

YANG Qi

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机组涉网保护与高频切机措施优化配置方案

更新时间：2025-08-13

- 机组涉网保护与高频切机措施优化配置方案
- Automation of Electric Power Systems Vol. 37, Issue 20, Pages: 127-131(2013)
- 作者机构：
  
  中国电力科学研究院,北京市,100192
- 作者简介：
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- Published：2013
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YANG Qi. [J]. Automation of electric power systems, 2013, 37(20): 127-131.
DOI：

YANG Qi. [J]. Automation of electric power systems, 2013, 37(20): 127-131. DOI：

摘要

通过典型事故总结归纳，分析了送端区域电网在孤岛运行时火电机组汽轮机超速保护设备和高频切机措施之间普遍存在的问题，提出了高频切机措施与超速保护设备优化配置原则;通过多种方案分析比较，给出了高频切机措施与超速保护控制优化配置方案。调研收集了国内火电机组汽轮机超速保护典型模型和典型参数，结合中国汽轮机超速保护配置现状，在PSD-BPA软件中开发并建立了火电机组汽轮机超速保护典型模型。以广东江中珠电网为例，模拟了孤岛运行的整个过程，校核了现有电网孤岛运行时高频切机措施与机组涉网保护设备之间的协调配合方案，分析了优化配置方案及原则的有效性和实用性，确保了区域电网安全稳定运行。

Abstract

Through the summary of typical accidents，the problem between over speed protection devices of steam turbines of thermal power units and over frequency generator tripping measures is analyzed in isolated island operation of sending ends of the regional grid.The optimal allocation principle between over frequency generator tripping measures and over-speed protection equipment is put forward.The optimal scheme is given following analysis and comparison of a variety of programs.Typical models and parameters of domestic thermal power unit steam turbine over-speed protection have been collected for investigation.Typical models for thermal power unit steam turbine over-speed protection have been developed.Take Jiang-Zhong-Zhu power grid as an example，the whole process of isolated island operation is simulated.The coordination with currently available over frequency generator tripping measures and the relay setting related to power network is checked in isolated island operation，the validity and practicability of the optimal scheme and principle are analyzed.With the method，the regional grid will remain safe and stable.

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