燃气电厂主接线优化方案探讨  

Optimization of Electrical Single-line Diagram in Gas-turbine Power Plants

作　　者：刘莹 LIU Ying(PowerChina Fujian Electric Power Engineering Co.,Ltd.,Fuzhou 350001,China)

机构地区：[1]中国电建集团福建省电力勘测设计院有限公司,福建福州350001

出　　处：《电力勘测设计》2024年第5期58-63,87,共7页Electric Power Survey & Design

摘　　要：电气主接线是发电厂电气设计的首要部分,也是构成电力系统的重要环节。本文分析大中型火力发电厂不同的接线型式,通过断路器检修、单一回路故障以及一回路故障另一断路器拒动几种工况的分析,对比不同主接线型式的可靠性;通过分析主接线调度、检修及扩建时的差异,对比不同型式主接线的灵活性;通过设备选型及数量、占地面积情况,对比不同主接线型式的经济性。通过对主接线可靠性、灵活性和经济性的比选,为同类型发电厂主接线设计提供思路及参考。The electrical single-line diagram is the most important part of the electrical design of a power plant and an important link of a power system.This paper analyzes different types of electrical single-line diagrams for large and medium-sized thermal power plants,and compares the reliability of different main connection types through the analysis of breaker maintenance,single-circuit faults,and one circuit fault with another breaker refusing to operate.The paper also compares the flexibility of different electrical schemes during dispatching,maintenance,and expansion,and compares their economic feasibility through the selection of equipment,the number of units,and the size of the site.By comparing the reliability,flexibility,and economic feasibility of main connection types,this paper provides ideas and references for the design of the main connection of power plants of similar type.

关 键 词：电气主接线 角形接线 桥形接线 双母线接线 

分 类 号：TM621[电气工程—电力系统及自动化]