Security Assessment Method by Energy Function Model of Inverter Power Supply

大多数可再生能源系统使用DC/AC逆变器连接电力系统。为了评估可再生能源逆变器对电力系统的影响，提出了一种安全评估方法，它是利用能量函数进行稳定性评估的手段之一。能量函数的优点是其计算速度比类似用于稳定性分析的模拟方法更快。还提出了LED照明设备的负载模型和消费者网络模型用于安全评估。

Most of renewable energy system uses DC/AC inverter to connectpower system. In order to evaluate the influence of inverter for renewable energy resources to power system, we proposed a security assessment method which is one of means of stability assessment using energy function. The advantage ofthe energy function is that its calculation speed is faster than the simulation methods which are used similarly for a stability analysis. Load model of LED lighting equipmentsand consumermers network models are also proposed for the security assessment.