CAJ | 학술논문

根据质子交换膜燃料电池(PEMFC)发电系统运行特性,建立 PEMFC 并网控制系统模型,设计基于 d 轴虚拟电网磁链定向的矢量控制策略(VFOC)和改进的虚拟电网磁链观测器.并通过采用 IEEE Std1547-2003标准,对并网电压、电流的总谐波畸变率(THD)进行仿真测试.结果表明,该 PEMFC 并网控制系统能够实现单位功率因数运行.而且通过 FFT 分析证明该并网系统也能够较好地降低电压和电流总谐波含量,验证了所设计并网系统的正确性和有效性.
근거질자교환막연료전지(PEMFC)발전계통운행특성,건립 PEMFC 병망공제계통모형,설계기우 d 축허의전망자련정향적시량공제책략(VFOC)화개진적허의전망자련관측기.병통과채용 IEEE Std1547-2003표준,대병망전압、전류적총해파기변솔(THD)진행방진측시.결과표명,해 PEMFC 병망공제계통능구실현단위공솔인수운행.이차통과 FFT 분석증명해병망계통야능구교호지강저전압화전류총해파함량,험증료소설계병망계통적정학성화유효성.
According to the operating characteristics of a proton exchange membrane fuel cell (PEMFC) generation system, a PEMFC grid-connected control system model is developed and a virtual line-flux-linkage oriented vector control strategy (VFOC) based d-axis and a modified virtual flux-linkage observer are designed. The total harmonic distortion (THD) of grid-connected voltages and currents are measured by means of the criterion of IEEE Std1547-2003. The simulation results demonstrate that this PEMFC grid-connected control system can achieve unit power factor operation. Furthermore, the FFT analysis results testify that this grid-connected system can also decrease the total harmonic content of voltages and currents better, and then the correctness and validity of this proposed grid-connected control system is verified.