恒温控制负载中冷负载拾取振荡的解析特性

Cristian Perfumo, J. Braslavsky, J. Ward, E. Kofman
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引用次数: 10

摘要

可以控制大量的恒温控制负载,以实现电网中发电和需求之间的必要平衡。当大量的恒温控制负荷同时被迫改变它们的开关状态时,这些负荷的总电力需求呈现出大的、欠阻尼的振荡,这是一种众所周知的现象,被电力公司称为“冷负荷回升”。描述这些振荡和总体总体动态有助于数学分析和控制设计。本文给出了一个功率响应的随机模型,并推导了周期和包络线的简单表达式。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An analytical characterisation of cold-load pickup oscillations in thermostatically controlled loads
Large groups of thermostatically controlled loads can be controlled to achieve the necessary balance between generation and demand in power networks. When a significant portion of a population of thermostatically controlled loads is forced to change their on-off state simultaneously, the aggregate power demand of such population presents large, underdamped oscillations, a well-known phenomenon referred to by power utilities as “cold-load pickup”. Characterising these oscillations and, in general, the aggregate dynamics of the population facilitates mathematical analysis and control design. In this paper we present a stochastic model for the power response and derive simple expressions for the period and envelope of the oscillations.
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