DC-DC Boost Converter Stability with Constant Power Load

In this paper, the fuzzy logic control (FLC) is presented to address the instability effects of constant power load, and how to regulate the output voltage of a DC-DC Boost converter. The constant power load has negative incremental resistance, which makes the system unstable under a small disturbance on the load. To evaluate the performance, the proposed method is simulated by a MATLAB-SIMULINK model. Furthermore, the proposed concept is validated experimentally using a field programmable gate Array FPGA-Based Hardware-in-the-Loop Simulation by hardware description language.