Effects of Load-Based Frequency Regulation on Distribution Network Operation
Effects of Load-Based Frequency Regulation on Distribution Network Operation
复制标题
基于负荷的调频对配电网运行的影响
DOI：
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发表时间：
2018
影响因子：
6.6
通讯作者：
J. Mathieu
中科院分区：
文献类型：
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作者：
Stephanie Ross;Gabrielle Vuylsteke;J. Mathieu
本文探讨了配电网的运作，有大量的恒温控制负载（TCLs）提供频率调节的大容量电力系统。具体而言，我们评估的配电网络约束违反，如过电压或欠电压和变压器过载的流行。我们的目标是确定一组约束，在被违反的风险增加时，TCL提供监管。我们在两种情况下比较网络操作：第一，与TCL自由操作;第二，与TCL控制跟踪调节信号。使用GridLAB-D，我们运行五个真实的配电网的潮流模拟。我们的研究结果表明，电压限制是在增加违反的风险时，TCL提供监管，因为增加电压变化。对Transformer老化的影响更为微妙，取决于调度TCL所使用的方法。总体而言，我们发现，对于所研究的网络，有违反风险的约束集是所有网络约束的一个小子集。因此，网络保护负载控制算法可能只需要考虑一小组约束，提高了它们的计算效率。
This paper examines the operation of distribution networks that have large aggregations of thermostatically controlled loads (TCLs) providing frequency regulation to the bulk power system. Specifically, we assess the prevalence of distribution network constraint violations, such as over- or under-voltages and overloading of transformers. Our goal is to determine the set of constraints that are at increased risk of being violated when TCLs provide regulation. We compare network operation in two cases: first, with TCLs operating freely; and second, with TCLs controlled to track a regulation signal. Using GridLAB-D, we run power flow simulations of five real distribution networks. Our results indicate that voltage limits are at increased risk of violation when TCLs provide regulation because of increased voltage variation. Effects on transformer aging are more nuanced and depend on the method used for dispatching TCLs. Overall, we find that, for the networks studied, the set of constraints at risk of violation is a small subset of all network constraints. Therefore, network-protecting load control algorithms may only need to consider a small set of constraints, enhancing their computational efficiency.