PAC-4000A发电厂自动电压调控系统动态模拟试验

Dynamic simulation test of PAC-4000A auto voltage control system for power plant

介绍了PAC-4000A发电厂自动电压调控系统的动态模拟试验方案及其试验结果。发电厂自动电压调控系统是电网自动电压调控系统的有机组成部分,以往受技术发展和试验条件的限制,设备投运前对发电厂自动电压调控系统的原理、控制效果缺乏有效的检测方法。在介绍了PAC-4000A发电厂自动电压调控系统及其电压等级为500kV的动模试验模型的基础上,对试验设备进行了系统阻抗自动识别、等裕度调节算法试验、自动电压跟踪试验等实验内容,达到了满意的控制效果。本试验提出的测试技术、方法也可为电力系统分布式控制系统的动模试验提供借鉴。

This paper introduces scheme and result of PAC-4000A power plant auto voltage control system dynamic simulation test. As an important part of grid auto voltage control system, formerly power plant auto voltage control system had no effective measure to check principal and control result before device operation because of technical and test condition limitation. Based on introduction of PAC-4000A power plant auto voltage control system and its 500kV dynamic simulation test model, this paper essentially describes test contents below, including plant external system equivalent resistance recognition,similar stable region adjust algorithm test, and auto bus voltage keeping test, etc. Test result shows this device has good performance. This test model system can also be promoted to other distributed control system dynamic simulation test.