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In this paper, we propose a fully distributed control approach to deal with voltage violations in a subtransmission network with high penetration of wind power. The controllers used are virtual power plants (VPPs) in the subtransmission network. During the control process, each load bus monitors its own bus voltage. If there is a voltage violation detected, then all VPPs will be activated at once...
We consider the decentralized control of radial distribution systems with controllable photovoltaic inverters and storage devices. For such systems, we consider the problem of designing controllers that minimize the expected cost of meeting demand, while respecting distribution system and resource constraints. Employing a linear approximation of the branch flow model, we formulate this problem as...
As more distributed energy resources (DERs) such as PV generation, batteries and electrical vehicles are installed in the distribution grid, controlling the voltage to be within allowed limits is becoming a major challenge. A possible solution is to actively use the active and reactive power control capabilities of these DERs to keep the voltage within limits. For this purpose, new control algorithms...
Microgrids offer a flexible, modular, and scalable solution to facilitate the adoption of renewable energy sources, e.g., solar power, in distribution networks. Noticeably, the cost of daily operation of a microgrid is tightly coupled with its long-term planning decisions, such as the placement of renewable energy sources. This paper studies the optimal placement of solar panels in a grid-connected...
Power supply restoration after a blackout is a major task of network reconfiguration. Current research has considered conventional power generation including thermal and hydroelectric units as power sources during system restoration. However, with the increasing number of HVDC projects, it is necessary to take HVDC into account to speed up the restoration process, because of its excellent performances...
This paper deals with the optimal phasor measurement unit (PMU) placement problem. In large power system, it is costly to place too many PMUs to achieve real time global observability. In fact, system state can be well estimated by optimally placed limited PMUs' synchronous measurements. Based on the method of voltage control area division, a spectral clustering approach is proposed to divide the...
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