On the Voltage Ripple Reduction Control of the Linear Switched Reluctance Generator for Wave Energy Utilization
On the Voltage Ripple Reduction Control of the Linear Switched Reluctance Generator for Wave Energy Utilization
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DOI：
10.1109/tpel.2013.2292069
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发表时间：
2014-10
影响因子：
6.7
通讯作者：
J. Pan;Y. Zou;N. Cheung;G. Cao
中科院分区：
文献类型：
--
作者：
J. Pan;Y. Zou;N. Cheung;G. Cao
本文讨论了基于直接驱动线性开关磁阻发电机（LSRG）的波浪发电系统的电压输出纹波减小和误差最小化。首先，研究了基于LSRG的波浪发电系统的概念。根据LSRG的特点，建立了合适的驱动电路，专用于适当的电流激励和产生。其次，研究了造成电压输出纹波的原因。为了减少相电流换相产生的显着纹波，基于最小铜损原理提出了电流分布函数（CDF）。第三，构建了以电流和电压为内环和外环的双环控制策略，并用所提出的CDF来实现。推导了控制策略的理论基础。仿真结果表明，所提出的控制算法能够在波浪能提取的整个运行速度内将电压纹波抑制在±0.5 V范围内，并通过实验验证得到验证。
This paper discusses about the voltage output ripple reduction and error minimization for the direct-drive, linear switched reluctance generator (LSRG)-based wave power generation system. First, the concept of the LSRG-based wave power generation system is studied. According to the characteristics of the LSRG, the suitable drive circuit dedicated to proper current excitation and generation is established. Second, the reasons that cause voltage output ripples are investigated. To reduce the remarkable ripples from phase current commutations, a current distribution function (CDF) is proposed based on the minimized copper loss principle. Third, the dual-loop control strategy with current and voltage as the inner and outer loop is constructed, implemented with the proposed CDF. Theoretical bases of the control strategy are derived. The simulation results prove that the proposed control algorithm is capable of voltage ripple suppression and error reduction within the range of ±0.5 V over the entire operation speed for wave energy extraction, validated by experimental verification.