微网SMES预测控制模式下的涡流损耗抑制方式

Eddy Current Loss Suppression Mode Under Micro-grid SMES Predictive Control Mode

现有的高温超导材料能量损耗解析原理逐渐成熟,但微电网系统采用超导储能(SMES)磁质涡流损耗的抑制和解析尚未完善。在此给出一种微网SMES预测控制模式下的涡流损耗抑制方法。首先,给出SMES模式下的预测控制架构,包含SMES在微网中的功率转换及参量获取方法,然后解析了SMES系统电磁储能构造的特点及频率涡流损耗关联性。最后采用实验得到结果分析,给出SMES投入前后微网系统母线和电机动态测试及两种方法的谐波性质和涡流损耗对照。获取高幅度谐波结果将得到高涡流损耗的通用关联,论证了所提预测控制方法较传统方法在抑制涡流损耗特点部分的效能。

The principle of existing high temperature superconducting material energy loss analysis is gradually mature, and the suppression and analysis of superconducting magnetic energy storage （SMES） eddy current loss in micro- grid system is not yet well developed.A new method of eddy current loss control in microgrid SMES predictive control is presented.Firstly,the predictive control architecture in SMES mode is given,including the power conversion and parameter acquisition method of SMES in the mierogrid.Then,the characteristics of electromagnetic energy storage structure of SMES system and the correlation of frequency eddy current loss are analyzed.Finally, the results are ana- lyzed by experiments, the micro-grid system bus and motor dynamic tests are compared with harmonic properties and eddy current loss of the two methods.General correlation of high eddy current losses is obtained by high amplitude harmonic results, the effectiveness of the predictive control method and traditional method in characteristics of eddy current losses is demonstrated.