关键词：电力系统；光伏电源；配置；可再生能源
摘 要：The uncertainty and variability associated with photovoltaic (PV) generation make it very challenging to balance power system generation and load, especially for high penetration cases. Higher reserve requirements and more cycling of conventional generators are generally anticipated for large-scale PV integration. However, whether the existing generation fleet is flexible enough to handle the variations and how well the system can maintain its control performance are difficult to predict. The goal of this project is to develop a software program that can perform intra-hour dispatch and automatic generation control (AGC) simulation, by which the balancing operations of a system can be simulated to answer the questions posed above. The simulator, named Electric System Intra-Hour Operation Simulator (ESIOS), uses the NV Energy southern system as a study case, and models the systems generator configurations, AGC functions, and operator actions used to balance system generation and load. Actual dispatch of AGC generators and control performance under various PV penetration levels were assessed by running ESIOS. The results could provide system operators with more insights on what to expect with different amount of PV generation in the system. This report describes the design of the simulator and presents the study results.