Abstract
This paper proposes a new Switched Inductor based Quadratic Boost (SLQB) converter. The theoretical study for control design is carried out in detail. Small signal dynamic analysis of the proposed topology is obtained by State-Space averaging technique to investigate the closed-loop performance of SLQB converter. Ziegler-Nichols' closed loop tuning method is adapted to design the controller and analyze the closed loop performance. The theoretically derived transfer functions divulged a perfect matching with simulation results obtained from circuit simulator, spice. The effectiveness and adaptability of the SLQB converter are confirmed with high gain DC-DC converters belonging to the SL family. The stability study is carried out by MATLAB software, and the respective graphs are obtained to analyze the open loop and closed loop performance of the derived converter.}
Highlights
DC-DC converters are operating as power optimizers in Renewable Energy System (RES)
Comparison is carried out with the existing converter in the literature to emphasize the advantage of the SLQB converter
The superiority of SLQB converter is proved by comparing the converter with hybrid POEL converter [11], and it is tabulated in Tab. 3
Summary
DC-DC converters are operating as power optimizers in Renewable Energy System (RES). DC-DC converters are used extensively in several applications such as computers, telecommunication, automobiles, medical instruments, military and various industrial applications. In most of these applications, DC distribution system is the most important part, and it is necessary to ensure the stability of the regime for the efficient operation. Most commonly used modeling techniques for DC-DC converters are PWM switch modeling [1], Current Injected Equivalent Circuit Approach (CIECA) [2] and [3], Modeling using Mason’s gain formula [4], alternate PWM switch modeling [5] and [6], unified topological approach [7], signal flow graph modeling [8] and [9] and so on
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