A modified PID controller of SEPIC converter for excellent dynamic performance

Single-ended primary inductor converter (SEPIC) is widely used in battery charging of renewable energy and electric/hybrid vehicles due to its output gains range flexibility, less complex switching design, providing an isolation by using series capacitor and producing non-inverted output. This paper...

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Bibliographic Details
Published in:	2016 IEEE International Conference on Power and Energy (PECon) pp. 423 - 427
Main Authors:	binti Alias, Azrita, binti Azri, Maaspaliza, bin Jidin, Auzani, binti Abdul Halim, Wahidah
Format:	Conference Proceeding
Language:	English
Published:	IEEE 01-11-2016
Subjects:	Closed loop systems Dynamic Performance Inductors Load modeling Mathematical model Modified PID Controller SEPIC Steady-state Step-Change Transient analysis Voltage control
Online Access:	Get full text
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Summary:	Single-ended primary inductor converter (SEPIC) is widely used in battery charging of renewable energy and electric/hybrid vehicles due to its output gains range flexibility, less complex switching design, providing an isolation by using series capacitor and producing non-inverted output. This paper presents a modified PID controller to obtain excellent dynamic performance with zero steady-state error. The controller design is discussed and built in discrete model simulation on Matlab-Simulink. The effectiveness of the proposed modified PID control strategy is tested for the transient cases in step-changed load, step-changed reference voltage, and varying input voltages. The results show the proposed controller can compensate overshoot percentage (%OS), reach zero steady-state error and produce lower ripple in voltage.
DOI:	10.1109/PECON.2016.7951599