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A Novel Adaptive Supervisory Controller for Optimized Voltage Controlled Demand Response

机译：用于优化压控需求响应的新型自适应监控控制器

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摘要

Recently, it has been shown that voltage-controlled demand response (VCDR), which is based on the principle of the dependence of the active power of demand on the system voltage, can provide ancillary services to future power systems. Voltage control devices used for VCDR can improve system frequency stability to various extents, depending on their locations, load size and load-voltage dependency in the grid. Thus, designing a supervisory controller to guarantee that such devices are optimally utilized for VCDR is necessary, as this can contribute in enhancing system frequency stability. In this paper, a novel adaptive supervisory controller (ASC) is proposed to optimally use VCDR resources in large power systems for such purposes. To ensure the effective operation of the ASC, an assessment of the impacts of on-load tap changer (OLTC) transformers on the system frequency is essential. In this regard, clustering techniques and principal component regression are used as offline tools to evaluate the influences of OLTCs transformers on VCDR in large-scale power systems using the IEEE 39-bus test system. Also, to estimate the effects of the OLTC transformer clusters on VCDR, a comprehensive sensitivity analysis with respect to the gain of the modified OLTC controllers' frequency input is conducted.
机译：最近，已经表明，基于需求的有功功率对系统电压的依赖关系的原理的压控需求响应（VCDR）可以为未来的电力系统提供辅助服务。用于VCDR的电压控制设备可以根据其位置，负载大小以及电网中负载电压的依赖性，在不同程度上改善系统频率稳定性。因此，有必要设计一个监控控制器以确保将此类设备最佳地用于VCDR，因为这可以有助于增强系统的频率稳定性。在本文中，提出了一种新颖的自适应监督控制器（ASC），用于在大型电力系统中以最佳方式使用VCDR资源。为了确保ASC的有效运行，必须评估有载分接开关（OLTC）变压器对系统频率的影响。在这方面，使用IEEE 39总线测试系统，将聚类技术和主成分回归作为离线工具来评估OLTC变压器对大规模电力系统中VCDR的影响。同样，为了估计OLTC变压器集群对VCDR的影响，针对修改后的OLTC控制器的频率输入的增益进行了全面的灵敏度分析。

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