On Optimally Reducing Power Loss in Micro-grids With Power Storage Devices
On Optimally Reducing Power Loss in Micro-grids With Power Storage Devices
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DOI：
10.1109/jsac.2014.2332077
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发表时间：
2014-06
影响因子：
16.4
通讯作者：
Chao Wei;Z. Fadlullah;N. Kato;I. Stojmenovic
中科院分区：
文献类型：
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作者：
Chao Wei;Z. Fadlullah;N. Kato;I. Stojmenovic
智能微电网可以产生“可再生”能源，并将其储存在电力存储设备中。然而，功率损耗是微电网之间以及宏站与单个微电网之间的功率交换的重要问题。为了最大限度地降低微网系统的总功率损耗，提出了一种贪婪联盟形成算法，该算法允许宏站协调微网之间以及每个微网与宏站之间的相互功率交换。我们的算法优化了整个电网的总功率损耗，包括充电和放电储能设备的成本以及由于功率传输造成的功率损耗。该算法在微电网之间创建交换对，优先考虑每个交换功率单元具有更高功率损耗减少的对。通过计算机仿真，我们证明了所提出的方法显着降低了平均功率损耗相比，传统的非合作的方法。模拟还表明，我们的建议的通信开销（由于旨在形成联盟的谈判）不会显着影响可用的通信资源。
Smart micro-grids can produce “renewable” energy and store them in power storage devices. Power loss, however, is a significant problem in power exchange among the micro-grids and between the macro-station and individual micro-grids. To optimally reduce the total power losses in such a power grid system, in this paper, a greedy coalition formation algorithm is proposed, which allows the macro-station to coordinate mutual power exchange among the micro-grids and between each micro-grid and the macro-station. Our algorithm optimizes the total power losses across the entire power grid, including the cost of charging and discharging power storage devices and power losses due to power transfers. The algorithm creates exchange pairs among the micro-grids, giving priority to pairs with higher power loss reduction per exchanged power unit. Through computer-based simulations, we demonstrate that the proposed approach significantly reduces the average power loss compared with the conventional noncooperative method. The simulations also demonstrate that the communications overhead of our proposal (due to negotiations aimed at forming coalitions) does not significantly affect the available communication resource.