电力系统在线动态安全评估和预警系统

介绍了电力系统在线动态安全评估和预警系统(PDSA)的主要组成和功能。PDSA以并行计算平台作为运行支撑平台，提供了大区互联电网的在线动态安全评估和预警的整套工具包。通过对能量管理系统/相角量测装置(EMSs/PMUs)收集到的在线数据和电网离线分析计算数据进行整合，获得当前运行工况的计算数据。PDSA集成PSASP计算软件功能，可以实现在线暂态稳定、电压稳定、小干扰稳定等多种稳定分析。PDSA系统在国、网、省3级电网中均已得到了应用。

Dynamic Security Assessment & Early Warning System of Power System

This paper introduced the main components and features of power system analysis software package(PSASP) Dynamic Security Assessment & Early Warning System of Power System (PDSA). PDSA provides a complete toolset of on-line dynamic security assessment for large-scale power system, based on parallel simulation platform. The base data of PDSA is combined data from different energy management systems (EMSs), phasor measurement units (PMUs) and off-line calculations. By integrating algorithms from the PSASP calculation, PDSA can perform on-line assessments of transient stability, small signal stability and voltage stability, to promote dynamic security of power system. The PDSA has been applied to state grid, regional grids and provincial grids of China.