Enhancement of Solar PV Panel Using Single Integral Sliding Mode MPPT Control

Abstract

The maximum power extraction using single integral sliding mode control scheme is established from the sliding mode control scheme. The sliding mode control (SMC) scheme extracts the maximum power during the partial shading weather conditions using the effective selection sliding surface duty cycle ratio in combination of dc/dc boost converter. This dynamic operation of sliding surface selection operation in partial shading conditions aids to enhance the solar panel efficiency compared to the other existing MPPT schemes. The effective dynamic operation of sliding surface mode control is designed using feedback loop control scheme to diminish the steady state voltage error of the solar panel, further to obtain the higher sliding duty cycle ratio. The dc-to-dc boost converter is made active using sliding duty cycle ratio as input gate signal boost converter switch. Hence, higher efficiency attains at higher sliding surface duty ration. This sliding surface duty ratio is limited in sliding mode MPPT control scheme and requires the necessary advancements to achieve the maximum duty cycle ratio. The single integral sliding mode control scheme (SISMC) offers the enhanced sliding surface duty cycle ratio with integration of voltage error obtained in SMC scheme. Therefore, the major application of SISMC compared to SMC scheme is the proposed SISMC schemeoffers the effective dynamic sliding operation using integrated steady state voltage error signal and allows to nullify the lacuna of maximum sliding duty cycle ratio. Hence, this paper aims to discuss the design and performance analysis of SMC scheme and proposed SISMC MPPT control scheme. To corroboratethe performance of the proposed SISMC MPPT scheme, the MATLAB / Simulink model was designed and verified. Also,this paper presents the comparison results of proposed SISMC MPPT schemes with the SMC scheme.