Using OPF-Based Operating Envelopes to Facilitate Residential DER Services
Using OPF-Based Operating Envelopes to Facilitate Residential DER Services
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DOI：
10.1109/tsg.2022.3188927
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发表时间：
2022-11-01
影响因子：
9.6
通讯作者：
Theunissen, John
中科院分区：
文献类型：
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作者：
Liu, Michael Z.;Ochoa, Luis F.;Theunissen, John
住宅分布式能源（DER）的激增，如太阳能光伏和电池，为DER所有者创造了通过聚合器提供系统级服务的机会。然而，如果配电公司没有充分管理这种聚合响应，同时输出（或输入）的有功功率可能会导致电压和电流远远超出其网络的限制。但最大的障碍是，分销公司通常不能直接管理DER或聚合器。这项工作提出了使用经营成本时变，米级出口/进口限制，分销公司的问题，以聚合，以确保网络的完整性，同时促进住宅DER服务。使用线性化的三相最优潮流（OPF）技术来计算操作包络，该技术还利用可控网络资产（例如，有载分接开关）。使用一个实际的澳大利亚MV-LV网络与4，600+住宅客户，结果表明，网络的完整性可以得到确保，而无需配电公司直接控制DER。此外，现有的有载分接开关产生了额外的电压裕量，从而产生了更大的操作范围（和潜在的服务）。鉴于分销公司不知道提供服务的客户的最终出口/进口，运营信封的概率测试证实，他们是足够的最合理的情况。
The proliferation of residential distributed energy resources (DER), such as solar PV and batteries, is creating opportunities for DER owners to provide system-level services through aggregators. However, if this aggregated response is not adequately managed by distribution companies, the simultaneous active power exports (or imports) can result in voltages and currents well beyond the limits of their networks. But the big barrier is that, often, distribution companies cannot directly manage DER or aggregators. This work proposes the use of operating envelopes-time-varying, meter-level export/import limits that a distribution company issues to aggregators-to ensure network integrity while facilitating residential DER services. The operating envelopes are calculated using a linearised, three-phase optimal power flow (OPF) technique that also exploits controllable network assets (e.g., on-load tap changers). Using a realistic Australian MV-LV network with 4,600+ residential customers, results show that network integrity can be ensured without the need for distribution companies to directly control DER. Furthermore, existing on-load tap changers create additional voltage headroom and, thus, larger operating envelopes (and potential services). Given that distribution companies do not know the ultimate exports/imports of customers providing services, a probabilistic testing of the operating envelopes confirms that they are adequate for most plausible scenarios.