Characteristic of small-scale BESS for HOTT generation system
Characteristic of small-scale BESS for HOTT generation system
复制标题
HOTT发电系统小型BESS的特点
DOI：
10.1109/innotek.2014.6877363
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Yasuyuki
中科院分区：
文献类型：
--
作者：
Rahman;Mohammad Lutfur; Nishimura;Kazuki; Motobayashi;Kei; Fujioka;Shotaro; Shirai;Yasuyuki
将小型电池储能系统（BESS）与海上风力和潮汐混合涡轮机（HOTT）发电系统集成可以平滑由海上风力涡轮机产生的间歇性功率。在该系统中，潮汐涡轮机连接到IGBT双向转换器，海上风力涡轮机连接到二极管整流器。它们在DC侧连接。通过双向变流器的切换来控制潮汐涡轮机的功率流，通过改变潮汐涡轮机的输出来补偿风力脉动。利用潮汐输出功率补偿海上风电功率波动存在一些问题。首先，潮汐涡轮机由于惯性不能很快地改变其输出。所以有一些延迟来控制输出。另一个问题是潮汐涡轮机产生的功率由于滑差的变化而损失。然而，潮汐涡轮机的容量和响应速度不足以实现良好的补偿。这就是为什么需要将BESS与HOTT发电系统集成，以提高可靠性，增加现有电网基础设施的吞吐量，并产生各种辅助效益，例如减少系统损耗和改善功率因数控制。由于大规模BESS仍然是一个昂贵的选择，可再生资源，一个最佳的控制策略是必要的，使用小规模可行的BESS。本文通过引入BESS来辅助潮汐涡轮机补偿海上风电涡轮机的快速波动。通过仿真研究了电池的影响。这是一个小容量的模拟研究，准备用于我们的小型实验模型HOTT系统与BESS。
Integrating a small-scale battery energy storage system (BESS) with a hybrid offshore-wind and tidal turbine (HOTT) generation system can smooth out the intermittent power generated by the offshore-wind turbine. In this system, tidal turbine is connected to an IGBT bi-directional converter and offshore-wind turbine is connected to a diode rectifier. They are connected at DC side. The power flow of tidal turbine is controlled by switching of the bi-directional converter and wind fluctuation is compensated by changing tidal turbine output. There are some problems to compensate the offshore-wind power fluctuation by the tidal output power. First, tidal turbine cannot change its output very fast because of its inertia. So there is some delay to control the output. Another problem is the loss of tidal turbine generated power due to change of the slip. However, the capacity and response speed of tidal turbine is inadequate to achieve good compensation. That's why it is required to integrate BESS with HOTT generation system to enhance reliability, increase throughput of existing grid infrastructure and yield various ancillary benefits such as to reduce system losses and improve power factor control. As a large-scale BESS is still an expensive option for renewable resources, an optimal control strategy is necessary for the use of small-scale feasible BESS. In this paper, BESS is connected to help tidal turbine to compensate fast fluctuations of offshore wind turbine. The effect of the battery is investigated through simulations. This is a small capacity simulation study which is prepared to use in our small experimental model HOTT system with BESS.