Document Type : Research Paper


1 Faculty of Electrical and Computer Engineering, Semnan University, Semnan, Iran

2 Msc Student in Electrical and Computer Engineering, Semnan University, Semnan, Iran


In this paper, a method is introduced which reduces the harmonic
distortion of the inverter output current, connecting the fuel
cell to the AC load. Using FUZZY LOGIC-PI (FLPI), the controlling
method is engaged in optimum tuning of the PI controller
coefficients of this converter. This converter has only one DC-AC
boost inverter and simultaneously has the task of increasing
voltage level and generating the AC power. In order to control the
inverter output voltage, an internal current control loop and an
external voltage control loop are used. Designing the control of
each loop is done separately based on FLPI controller. Simulation
results for proposed fuel cell energy system in the presence of
this controller imply good performance of FLPI and suitable
mitigation of inverter output current ripple.


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