Variable speed heat pump design for frequency regulation through direct load control

2014 IEEE PES T&D Conference and Exposition Pub Date : 2014-04-14 DOI:10.1109/TDC.2014.6863424

Young-Jin Kim, J. Kirtley, L. Norford

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引用次数: 10

Abstract

Frequency regulation becomes a non-trivial issue due to an increase in renewable resources and power electronics-based loads. Direct load control (DLC), a strategy of autonomous demand response, has been applied to mitigate operational burdens on generation units for frequency regulation. Variable speed heat pumps (VSHPs) have been regarded as promising devices that can respond to the DLC signal updated every 2 or 4 seconds. This paper presents a dynamic model of the VSHP that is simplified for real-time simulation studies but still sufficiently comprehensive to analyze its physical and operational characteristics. Furthermore, a variable speed drive (VSD)-controlled induction motor model is designed together with an indirect torque controller for the adjustment of the VSHP input power. In addition, based on experimental setup and data, a test room was modeled to estimate the effect of the DLC-enabled VSHP on indoor temperature. Simulation case studies performed in Matlab/Simulink verify that the VSHP can be well utilized as DLC-enabled loads for frequency regulation while ensuring residents' comfort and long-term device performance.

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变频热泵设计通过直接负荷控制进行频率调节

由于可再生资源和电力电子负载的增加，频率调节成为一个重要的问题。直接负荷控制(DLC)是一种自主需求响应策略，已被用于减轻发电机组频率调节的运行负担。变速热泵(VSHPs)被认为是有前途的设备，可以响应每2或4秒更新的DLC信号。本文提出了VSHP的动态模型，该模型为实时仿真研究进行了简化，但仍足以全面地分析其物理和操作特性。在此基础上，设计了变速驱动控制的异步电动机模型，并设计了间接转矩控制器来调节变速动力系统的输入功率。此外，在实验设置和数据的基础上，建立了一个测试室，以估计dlc开启的VSHP对室内温度的影响。在Matlab/Simulink中进行的仿真案例研究验证了VSHP可以很好地用作支持dlc的负载进行频率调节，同时确保居民的舒适性和长期设备性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2014 IEEE PES T&D Conference and Exposition

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