火力发电厂机组厂用电互联方案研究  

Research on Power Interconnection Scheme of Thermal Power Plant

作　　者：温强为 黄丹仪 周少旭 WEN Qiangwei;HUANG Danyi;ZHOU Shaoxu(Guangzhu Power Generation Co.,Ltd.of Zhuhai Special Economic Zone,Zhuhai 519000,China)

机构地区：[1]珠海经济特区广珠发电有限责任公司,广东珠海519000

出　　处：《电力勘测设计》2023年第9期24-28,62,共6页Electric Power Survey & Design

摘　　要：为提高厂用电系统运行的安全性、灵活性和经济性,提出了将两台机组厂用电互联的运行方式,并对其可行性进行校核。根据珠海某电厂两台机组6 kV厂用电运行现状,通过核算高压厂用变压器剩余容量,统计分析启停机负荷,选择最优互联方案,并对短路电流、母线电压、保护定值配合等安全方面进行重新论证分析。厂用电互联实施后,有效地保障机组安全稳定运行,提高机组运行的安全性、经济性和灵活性。本研究方案适用于其他需要进行厂用电互联可行性分析的项目。In order to improve the safety,flexibility and economy of plant power system operation,the operation mode of interconnecting two units of plant power is proposed and its feasibility is checked.In this paper,according to the current status of 6kV plant power operation of two units in a power plant in Zhuhai,the optimal interconnection scheme is selected by calculating the residual capacity of the high voltage plant transformer,statistically analyzing the starting and stopping loads,and re-demonstrating and analyzing the safety aspects of the short-circuit current,busbar voltageand the protection value coordination.After the implementation of plant interconnection,it effectively ensures the safe and stable operation of the unit and improves the safety,economy and flexibility of unit operation.This study program is applicable to other needs for plant power interconnection feasibility analysis.

关 键 词：厂用电互联 高压厂用变压器 可行性分析 

分 类 号：TM621[电气工程—电力系统及自动化]