Direct Drive Wave Energy Array with Energy Storage for Off Grid Operation
Direct Drive Wave Energy Array with Energy Storage for Off Grid Operation
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发表时间：
2015
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通讯作者：
M. Sousounis;Leong Kit Gan;A. Kiprakis;J. Shek
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作者：
M. Sousounis;Leong Kit Gan;A. Kiprakis;J. Shek
由于直接驱动永磁直线发电机在波能转换系统中引入的简化，已被提出作为传统发电机的替代方案。由于永磁发电机能够以低速发电，因此可以使用小波能装置从低功率波中发电。低功率波能转换器可以形成阵列，为偏远的沿海或岛屿社区提供电力，这些社区是离网的。本文介绍了采用小功率永磁直线发电机的离网系统波能阵列的波线模型。在直流环节引入了新的蓄电池以保持电压恒定，同时还为逆变器引入了直接功率控制器，以便为离网接入的家庭负荷提供优质电力。结果表明，该系统在不同的运行条件下，如次优控制和无功控制，以及高负荷要求的极端情况下。
Direct drive permanent magnet linear generator have been proposed as an alternative to conventional generators due to the simplification they introduce in a wave energy converter system. Due to the ability of the permanent magnet generators to generate power at low speeds it is possible to generate power from low power waves using small wave energy devices. The low power wave energy converters can form arrays to supply power to remote costal or island communities which are off-grid. The paper introduces wave-to-wire modelling of wave energy arrays for off-grid systems using low power permanent magnet linear generators. A new battery storage at the DC link is introduced to keep the voltage constant along with a direct power controller for the inverter in order to supply quality power to the domestic load connected off-grid. Results are presented that show the system under different operating conditions such as sub-optimal and reactive control as well as extreme conditions of high load demand.