大型工业企业供电多电源快速无缝相互支撑方法  

Rapid and Seamless Power Supply Method in Large-scale Industrial Enterprises of Supporting Each Other

作　　者：田兵[1] 毛承雄[1] 段余平[2] 陆继明[1] 邱军[2] 李妍[1] 张步涵[1] 马爱芳[3] 

机构地区：[1]华中科技大学湖北省电力安全与高效重点实验室,湖北武汉430074 [2]武汉钢铁(集团)公司能源动力总厂,湖北武汉430083 [3]湖北水利水电职业技术学院,湖北武汉430070

出　　处：《水电能源科学》2011年第3期178-180,196,共4页Water Resources and Power

基　　金：国家重点基础研究发展计划基金资助项目(2009CB219702);国家自然科学基金资助项目(50807020)

摘　　要：针对大容量重要工业负荷的常用电源和备用电源间快速无缝切换问题,提出了一种新型快速无缝多电源相互支撑方法电路结构,并与传统电路结构比较,讨论了2种电压检测方法及在两路电源有相角差时减小切换冲击电流的方法。仿真验证结果表明,该方法可行、有效,提高了检测的可靠性。For the large-capacity and important industry load, how to switch the load to common power or backup power seamlessly and quickly is an important problem.This paper proposes a new circuit structure for multi-power supporting and compares with the conventional circuit.It also discusses two kinds of voltage detection methods and studies on the reducing impact of the switching current method when there is a phase angle difference between the two powers.The simulation result demonstrates that the new circuit is feasible,effective and it improves the reliability of detection.

关 键 词：大型工业企业 多电源 快速无缝切换 仿真 

分 类 号：TM727.3[电气工程—电力系统及自动化]