A Study of Virtual Energy Storage From Thermostatically Controlled Loads Under Time-Varying Weather Conditions
A Study of Virtual Energy Storage From Thermostatically Controlled Loads Under Time-Varying Weather Conditions
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发表时间：
2018-07
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通讯作者：
Austin R. Coffman;A. Bušić;P. Barooah
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作者：
Austin R. Coffman;A. Bušić;P. Barooah
我们提出了一种控制体系结构，用于分布式协调一组开/关tcl（恒温控制负载），如住宅空调，为电网提供与大型电池相同的服务。一个关键的约束是确保维持消费者的服务质量（QoS）。我们的建议包括用随机控制器替换负载上的恒温器，遵循最近在这个方向上的建议。新的本地控制器有一个可调参数，作为平衡机构BA （balancing authority）的控制命令。与该领域的先前工作相比，我们提出的架构可以处理来自外部温度的大干扰。天气引起的扰动也对负荷所能提供的虚拟储能容量施加了与算法无关的限制。这一在以前的工作中被忽视的关键限制，以原则性的方式纳入了我们的提法。
We propose a control architecture for distributed coordination of a collection of on/off TCLs (thermostatically controlled loads), such as residential air conditioners, to provide the same service to the power grid as a large battery. A key constraint is to ensure that consumers' quality of service (QoS) is maintained. Our proposal involves replacing the thermostats at the loads by a randomized controller, following recent proposals in this direction. The new local controller has a tunable parameter that serves as the control command from the balancing authority (BA). Compared to prior work in this area, our proposed architecture can handle large disturbances from the outside temperature. Weather-induced disturbance also imposes an algorithm-independent limit on the capacity of the virtual energy storage the loads can provide. This key limitation, which was ignored in prior work, is incorporated in our formulation in a principled manner.