The Impacts of Cold Load Pickup on Design and Operation of Power Distribution Systems

9311257 Pahwa配电系统长时间停电后恢复供电，由于冷负载回升，导致负载远高于正常负载。除了初始瞬态外，冷负载拾取过程中的负载具有持久组件，可以是正常负载的2到5倍，并且可能持续几个小时。持久的成分主要是由于在循环类型的负载，如空调，冰箱等多样性的损失。在一段时间内负荷的增加和最大限度地利用现有设施的趋势将使冷负荷的提取成为配电系统设计和运行中的一个重要问题。所提出的方法为解决冷负荷取货问题的配电系统设计和运行提供了一种新的思路。本研究将为配电自动化集成到配电系统设计中奠定基础。＊＊＊

9311257 Pahwa Restoration of power after an extended outage in a distribution system results in load much higher than normal load due to cold load pickup. In addition to initial transients, the load during cold load pickup has an enduring component that can be 2 to 5 times normal load and may last for several hours. The enduring component is mainly due to loss of diversity in the cycling type of loads, such as air conditioners, refrigerator etc. An increase in load over a period of time and a trend to utilize the existing facilities to maximum extent will make cold load pickup and important issue in design and operation of distribution systems. The proposed methodology is a new approach to design and operation of distribution systems to handle cold load pickup problem. This research will lay a foundation for integration of distribution automation into the design of a distribution system. ***