Stability Theory for Large Scale Electric Power Systems Including Super-distributed Decision Making Entities

当电力供应商提供有关电价和电能质量的信息时，消费者会改变其电器的使用方式，以最大限度地从电力消费中获得利益。这种消费者行为被称为需求反应。我的研究目的是阐明需求响应如何影响电力系统的稳定性。在研究中，通过问卷调查和电力系统模拟器的实验，确定了需求响应的基本特征。此外，还澄清了为减少频率和电压波动而采用直接电器控制的时间延迟可能导致电力系统不稳定。研究结果对未来具有先进需求侧管理系统的电力系统的稳定运行具有参考价值。

Consumers will change the use of their appliances in order to maximize their benefits obtained from electricity consumption when information about electricity price and power quality is given by electricity suppliers. This consumer's behavior is called demand response. The purpose of my study is to clarify how demand response affects stability of electric power systems. In the study, basic characteristics of the demand response were identified through questionnaire and experiment using a power system simulator. It was also clarified that time delay with direct appliance control for reducing frequency and voltage fluctuations could cause instability of power systems. The results of the study are useful for stable operation of future electric power systems with advanced demand side management systems.