Fractional Controller Design of a DC-DC Converter for PEMFC

Abstract

Proton Exchange Membrane Fuel Cell (PEMFC) is difficult for application because of its high current and wide voltage output. A fractional order PID controller is introduced to a Four-Switch Buck-Boost DC/DC converter to stabilize the power output in this paper. To reduce the inductor current ripple, a kind of dual-triggered switch strategy is employed in detail, and an accurate dynamic model of DC/DC converter is proposed for fuel cell measurement and control system. Then a fractional order PID controller is designed for voltage module compensation, in which a stochastic inertia weight PSO algorithm is employed to optimize the parameters of this controller. The results of simulation and experiment indicate that the compensation effect of fractional order PID controller has better performance than the integer order controller, which is robust to the variation of fuel cell system dynamics and power request.

An innovative interleaved high step‐up direct current–direct current converter with switched‐inductor/capacitor–diode units for hydrogen fuel cell power system

“…The driving signals of switches S 1 and S 2 adopt dual‐triggered strategy in which the two switches are modulated at the leading edge and trailing edge, respectively 39 . In order to simplify the analysis of operational principle, the following assumptions are given.…”

Marine Predators Algorithm Optimized Reduced Sensor Fuzzy-Logic Based Maximum Power Point Tracking of Fuel Cell-Battery Standalone Applications

“…The different classifications of FCs are made based on the employed electrode type [5]. One promising kind of FCs is the proton exchange membrane FC (PEMFC) technology, which possesses improved efficiency [6]. Thence, PEMFCs have been preferred as energy supply alternatives.…”

High-Performance Tracking for Proton Exchange Membrane Fuel Cell System PEMFC Using Model Predictive Control

“…Although these controllers are especially sensitive when they face a large load variation, results showed a gradual and smooth rise to the desired operating power point with an acceptable tracking performance. To increase the robustness of the PID and obtain a better dynamic performance, various research groups/researchers [11] have applied a fractional order proportional integral derivative (FOPID) controller to a DC-DC four-switch buck-boost (FSBB) converter used in a PEMFC power system. The obtained results have shown that the proposed method achieved better performance in comparison with the integer-order and Two-Zero/Three-Pole (TZTP) controller.…”