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根据波能装置液压发电系统的特性,提出由蓄电池组支撑的直流纳电网技术。波能装置群采用直流并网与传输,可以接受周期波动的波浪能功率,效率、可靠性、电能质量均较高。纳电网蓄电池可解除波能装置群发电功率与纳电网逆变器的馈网功率,各装置负载可简化为纳电网蓄电池,各装置分别向蓄电池充电,互不影响。纳电网逆变器为海岛居民提供稳定的高质量的可控电源。仿真和实践证明波能装置群应用直流纳电网技术的可行性和优势。
According to the characteristics of the wave power plant hydraulic power generation system, proposed by the battery pack DC nano-grid technology. Wave energy device group using DC grid and transmission, can accept the wave power of periodic fluctuations, efficiency, reliability, power quality are higher. The grid-connected battery can release the power generated by the group of wave energy devices and the feed-in power of the grid-connected inverter, and the load of each device can be simplified as the grid-connected battery. Each device charges the battery separately and does not affect each other. Nat grid inverter island residents to provide stable and high quality controllable power supply. Simulation and practice have proved the feasibility and advantages of using DC Nano-grid technology in wave energy plant.