Abstract
As a non-linear input power source, fuel cells have soft output characteristics, slow dynamic response, and short service life. In order to improve the service life of the fuel cell, this paper conducts a simulation study on an interleaved parallel boost circuit based on double integral sliding mode control. The interleaved parallel structure is used to reduce the input current ripple of the fuel cell, and the state space average equation is used for modeling. At the same time, the double integral sliding mode control can improve the dynamic performance of the Boost converter. A hysteresis control is added after the sliding mode control to weaken the chattering effect of the sliding mode control. Matlab simulations show that the interleaved parallel Boost circuit with double integral sliding mode control can control the output current ripple of the fuel cell within 1% and make the output voltage have good dynamic performance.
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