电力市场环境下秒级可中断负荷研究  

Seconds Level Interruptible Loads and Application in Power Market Environment

作　　者：都亮[1] 刘俊勇[1] 田立峰[1] 杨可[1] 

机构地区：[1]四川大学电气信息学院,四川省成都市610065

出　　处：《中国电机工程学报》2008年第16期90-95,共6页Proceedings of the CSEE

基　　金：国家重点基础研究发展计划项目(973项目)(2004CB-217905)~~

摘　　要：当电力系统处于用电高峰期,各发电机组处于其出力边际状态时,如遭遇严重事故而不及时进行控制,将导致频率崩溃、系统瓦解。秒级可中断负荷(secondslevelinter-ruptibleloads,SIL)可提供解决这一问题的方法。该文通过IEEE-30节点系统仿真,对SIL所处节点位置差异、响应时间差异、价格差异、容量等不同方面进行研究,得知不同SIL参与者提供的SIL存在差异,这些差异对频率安全、网络线路传输安全和经济性方面有着不同影响。这些因素将为合理调用SIL提供科学的依据,从而在维持一定频率安全性的前提下尽量降低系统运行费用。Under emergency conditions arising from generating power deficiency, the consequence may make a drop in power system frequency that could lead to system collapse or a large amound of load loss. Seconds level interruptible load （SIL） can provide the solution. However, different SILs have different aspects, such as response time, volume, price and location. Through the IEEE 30-bus test system simulation, different SIL service provider has bigger different effects on frequency stability, the safety of transmission lines and economy. In order to maintain frequency security of system while minimising operating cost, economic dispatch must take account of these factors. This approach can aid the independent system operator （ISO） in real-time in selection of SIL service offers.

关 键 词：电力市场 频率调整 频率安全 可中断负荷 秒级可中断负荷 

分 类 号：TM73[电气工程—电力系统及自动化]