采用磁滞电流控制和PI控制方法的SEPIC变换器建模、仿真及性能分析

2018 International Conference on Innovations in Science, Engineering and Technology (ICISET) Pub Date : 2018-10-01 DOI:10.1109/ICISET.2018.8745619

Mirza Muntasir Nishat, Mohammad Abdul Moin Oninda, Fahim Faisal, M. Hoque

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引用次数: 15

摘要

本文采用磁滞电流控制和PI控制技术对SEPIC(单端初级电感变换器)变换器进行分析研究，观察输出电压稳定性、总谐波失真(THD)、功率因数(PF)和效率。SEPIC变换器具有不改变极性的升压降压特性，广泛应用于电池供电设备中。本文重点研究了连续导通模式下SEPIC变换器的建模。采用状态空间平均技术对系统进行数学建模并实现PI控制器。同时采用磁滞电流控制和PI控制，取得了满意的性能。滞回电流控制法的THD为2.798%，效率为90.07%，PI控制法的THD为17.17%，效率为88%。PI控制器的功率因数为0.966，磁滞电流控制方法的功率因数为0.8208。采用PSIM软件进行仿真，并对两种方法的总体调查结果进行了分析。

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Modeling, Simulation and Performance Analysis of SEPIC Converter Using Hysteresis Current Control and PI Control Method

This paper proposes an analytic study of SEPIC (Single-Ended Primary Inductor Converter) converter by employing Hysteresis Current Control and PI control technique to observe Output Voltage Stability, Total Harmonic Distortion (THD), Power Factor (PF) and Efficiency. SEPIC converter is extensively used in battery operated equipment for its significant feature of stepping up and stepping down voltage without changing polarity. The paper focuses on modeling SEPIC converter in CCM (continuous conduction mode) mode. State-Space Average technique is deployed to model the system mathematically and to implement the PI controller. Satisfactory performance is achieved by adopting both Hysteresis Current Control and PI control. Hysteresis current control method shows THD of 2.798% and efficiency of 90.07% whereas PI control method depicts THD of 17.17% and efficiency of 88%. Power Factor of 0.966 is achieved for PI controller while hysteresis current control method shows a power factor of 0.8208. PSIM software has been used for simulation purpose and the total investigation is analyzed for both methods.

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2018 International Conference on Innovations in Science, Engineering and Technology (ICISET)

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