电力市场发电容量充裕度分析系统设计

电力市场发电容量充裕度分析系统可以用来分析电力市场环境下的发电容量充裕度水平，为系统的运行和电力的投资提供支持。在分析国际上几种典型的保持发电容量充裕度的机制的基础上，分析了影响发电容量充裕度的主要因素、功能、指标，并提出2种新的结合经济目标的分析指标：充裕度不足损失和裕度效益。建立了电力市场发电容量充裕度的分析子系统的系统结构和分析流程，该分析子系统配置灵活，适应性强，能够满足电力市场不断发展的需要。

Adequacy Analysis System of Generation Capacity in Electricity Market

Based on the model of voltage-source inverter (VSI) under the synchronized rotating frame, a mathematic model of active power filter has been derived. Furthermore, applying global linearization method for non-linear system, a new nonlinear control method for DC-link voltage of APF has been presented to impel the dc-link voltage of the inverter into steady state in a preset period. Compared with the general used PI-controller, the new one can not only keep away from the trouble to regulate parameters of general controller, but also improve the dynamic and static state compensation performances of APF to keep the controlled system a good rapidity and stability whenever a large or small disturbance injected. Simulation results have verified the feasibility and reliability of the new controller. Although this method is designed for VSI-based APF, the new controller can also be used in other similar occasions where voltage-source converter(VSC) is used.