600MW机组从500kV电网改接入220kV电网的实践Practice of 600 MW Units Reconnected from 500 kV Power Grid to the 220 kV One
彭明伟,丁晓宇,宁康红
PENG Mingwei,DING Xiaoyu,NING Kanghong
摘要(Abstract):
根据对浙江宁波北仑电网现状及其运行方式的分析,研究论证了以500 kV电压等级并网的600 MW机组改接入220 kV电网的系统接入方案、送出线路导线截面选择方案。方案实施结果表明,北仑发电厂1台600 MW机组从500 kV电网改接入220 kV电网,可有效提高北仑电网供电可靠性、安全稳定水平及电网运行经济性。
Based on the analysis to the present situation and operation mode of Beilun grid in Ningbo, Zhejiang province, the paper investigates and demonstrates scheme for 600 MW units synchronized at 500 kV voltage class connects to 220 kV power grid and conductor section of outgoing transmission lines. According to the result, the implementation of 600 MW units in Beilun power plant changing to connect to 220 kV power grid can effectively improve the reliability of power grid, level of security and stability and the economic benefit of power grid operation.
关键词(KeyWords):
北仑电网;北仑电厂;600 MW机组;改接;220 kV电网;可靠性;稳定性
Beilun power grid;Beilun Power Plant;600 MW units;connection changing;220 kV power grid;reliability;stability
基金项目(Foundation):
作者(Author):
彭明伟,丁晓宇,宁康红
PENG Mingwei,DING Xiaoyu,NING Kanghong
DOI: 10.19585/j.zjdl.2014.04.012
参考文献(References):
- [1]管霖,冯垚,刘莎,等.大规模配电网可靠性指标的近似估测算法[J].中国电机工程学报,2006,26(10):92-98.
- [2]施伟国,宋平,刘传铨.计及分布式电源的配电网供电可靠性研究[J].华东电力,2007,35(3):37-41.
- [3]孙嘉平,张建峰,卢立军.提高北京电网供电可靠性措施的研究[J].华北电力技术,2004(2):51-54.
- [4]谷群辉,罗安,王击,等.一种实用的供电可靠性预测评估算法[J].电网技术,2003,27(12):76-79.
- [5]杨冬,刘玉田,牛新生.电网结构对短路电流水平及受电能力的影响分析[J].电力系统保护与控制,2009,37(22):62-67.
- [6]陈晓刚,孙可,曹一家.基于复杂网络理论的大电网结构脆弱性分析[J].电工技术学报,2007,22(10):138-144.
- [7]电力工业部电力规划设计总院.电力系统设计手册[M].北京:中国电力出版社,1998.