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Switched Reluctance Generator Controls for Optimal Power Generation and Battery Charging

机译：开关磁阻发电机控制，可实现最佳发电和电池充电

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摘要

This paper presents the control strategy for varying the turn-on and turn-off angles of three-phase switched reluctance generators (SRGs) to maximize the efficiency as well as to reduce the dc-link ripple current resulting from the commutation of the phases at high speeds. The behavior of the commutation angles is analyzed first through the offline measurement of dc-link current and voltage, generator speed, and phase currents. The analysis of the collected data has shown that the commutation angles providing the minimum ripple on the dc-link current achieve the maximum generating efficiencies. A novel control technique, developed based on the finding, achieves the desired generating set point with maximum efficiency and minimum ripple on the charging current. The control algorithm actively searches the turn-off angles to reduce the amount of normalized ripple on the dc-link current, which also ensures the generation with the maximum efficiency. The turn-on angle is controlled through a proportional–integral controller to generate a desired power level. The algorithm is implemented successfully on a 1-kW three-phase SRG charging a NiMH battery pack.
机译：本文提出了一种控制策略，用于改变三相开关磁阻发电机（SRG）的导通和关断角度，以最大程度地提高效率，并减少由于相位换相而产生的直流链路纹波电流。高速。首先通过离线测量直流母线电流和电压，发电机速度和相电流来分析换向角的行为。对收集到的数据的分析表明，在直流母线电流上提供最小纹波的换向角实现了最大的发电效率。基于此发现开发的一种新颖的控制技术以最大的效率和最小的充电电流波动来达到所需的发电设定点。该控制算法主动搜索断开角以减少直流链路电流上的归一化纹波量，这也确保了发电效率最高。接通角通过比例积分控制器控制，以生成所需的功率水平。该算法在为NiMH电池组充电的1kW三相SRG上成功实现。

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