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<button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1911.01573">arXiv:1911.01573</a> <span> [<a href="https://arxiv.org/pdf/1911.01573">pdf</a>, <a href="https://arxiv.org/format/1911.01573">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optimization and Control">math.OC</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Signal Processing">eess.SP</span> </div> </div> <p class="title is-5 mathjax"> Improving Operational Feasibility of Low-voltage Distribution Network by Phase-switching Devices </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/math?searchtype=author&query=Liu%2C+B">Bin Liu</a>, <a href="/search/math?searchtype=author&query=Meng%2C+K">Ke Meng</a>, <a href="/search/math?searchtype=author&query=Wong%2C+P+K+C">Peter K. C. Wong</a>, <a href="/search/math?searchtype=author&query=Dong%2C+Z+Y">Zhao Yang Dong</a>, <a href="/search/math?searchtype=author&query=Zhang%2C+C">Cuo Zhang</a>, <a href="/search/math?searchtype=author&query=Wang%2C+B">Bo Wang</a>, <a href="/search/math?searchtype=author&query=Ting%2C+T">Tian Ting</a>, <a href="/search/math?searchtype=author&query=Qi%2C+Q">Qu Qi</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1911.01573v1-abstract-short" style="display: inline;"> High penetration of residential photovoltaic (PV) in low-voltage distribution networks (LVDN) makes the unbalance issue more sever due to the asymmetry of generation/load characteristic in different phases, and may lead to infeasible operation of the whole network. Phase switching device (PSD), which can switch the connected phase of a residential load as required, is viable and efficient equipmen… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1911.01573v1-abstract-full').style.display = 'inline'; document.getElementById('1911.01573v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1911.01573v1-abstract-full" style="display: none;"> High penetration of residential photovoltaic (PV) in low-voltage distribution networks (LVDN) makes the unbalance issue more sever due to the asymmetry of generation/load characteristic in different phases, and may lead to infeasible operation of the whole network. Phase switching device (PSD), which can switch the connected phase of a residential load as required, is viable and efficient equipment to help address this issue. This paper, based on three-phase power flow (TUPF) formulation, aims to investigate the benefit of PSD on improving the operation feasibility of LVDN. The linear model of TUPF with PSD is presented to effectively take the flexible device into account, which can be conveniently used to seek the PSD positions that lead to a viable operation strategy of the original problem when infeasibility is reported by the traditional iteration-based algorithm. Case study based on a practical LVDN in Australia demonstrates the efficacy of the proposed method. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1911.01573v1-abstract-full').style.display = 'none'; document.getElementById('1911.01573v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 November, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Accepted and presented at The 8th International Conference on Renewable Power Generation (IET RPG 2019)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1909.11863">arXiv:1909.11863</a> <span> [<a href="https://arxiv.org/pdf/1909.11863">pdf</a>, <a href="https://arxiv.org/format/1909.11863">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optimization and Control">math.OC</span> </div> </div> <p class="title is-5 mathjax"> Unbalance Mitigation via Phase-switching Device and Static Var Compensator in Low-voltage Distribution Network </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/math?searchtype=author&query=Liu%2C+B">Bin Liu</a>, <a href="/search/math?searchtype=author&query=Meng%2C+K">Ke Meng</a>, <a href="/search/math?searchtype=author&query=Dong%2C+Z+Y">Zhao Yang Dong</a>, <a href="/search/math?searchtype=author&query=Wong%2C+P+K+C">Peter K. C. Wong</a>, <a href="/search/math?searchtype=author&query=Ting%2C+T">Tian Ting</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1909.11863v4-abstract-short" style="display: inline;"> As rooftop solar PVs installed by residential customers penetrate in low voltage distribution network (LVDN), some issues, e.g. over/under voltage and unbalances, which may undermine the network's operational performance, need to be effectively addressed. To mitigate unbalances in LVDN, dynamic switching devices (PSDs) and static var compensator (SVC) are two equipment that are cost-effective and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.11863v4-abstract-full').style.display = 'inline'; document.getElementById('1909.11863v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1909.11863v4-abstract-full" style="display: none;"> As rooftop solar PVs installed by residential customers penetrate in low voltage distribution network (LVDN), some issues, e.g. over/under voltage and unbalances, which may undermine the network's operational performance, need to be effectively addressed. To mitigate unbalances in LVDN, dynamic switching devices (PSDs) and static var compensator (SVC) are two equipment that are cost-effective and efficient. However, most existing research on operating PSDs are based on inflexible heuristic algorithms or without considering the network formulation, which may lead to strategies that violate operational requirements. Moreover, few pieces of literature have been reported on mitigating unbalances in LVDN via SVC and PSDs together. This paper, after presenting the dispatch model of SVC, formulates the decision-making process as a mixed-integer non-convex programming (MINCP) problem considering all practical operational requirements. To efficiently solve the challenging problem, the MINCP is reformulated as a mixed-integer second order-cone programming (MISOCP) problem based on either exact reformulations or accurate approximations, making it possible to employ efficient off-the-shelf solvers. Simulations based on a modified IEEE system and a practical system in Australia demonstrates the efficiency of the proposed method in mitigating unbalances in LVDN. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.11863v4-abstract-full').style.display = 'none'; document.getElementById('1909.11863v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 Pages, 12 figures</span> </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: 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