Design and Simulation of a Photovoltaic Emulator System Based on a Full-Bridge Structure

2014 ◽  
Vol 577 ◽  
pp. 584-587
Author(s):  
Li Yong Yang ◽  
Qiang Nian Chen ◽  
Shuo Yang
Keyword(s):  
Single Phase ◽  
Buck Converter ◽  
Double Loop ◽  
Bridge Structure ◽  
Pwm Rectifier ◽  
Matlab Simulation ◽  
Loop Control ◽  
Pv Module ◽  
Voltage Ripple ◽  
Control Output

In this paper, the design and simulation of a photovoltaic (PV) emulator are presented. The output characteristic and I-V curve are produced based on mathematical engineering PV module, so that they are similar to the practical curves. The proposed system consists of a single-phase full-bridge PWM rectifier and a DC/DC buck converter, which can reduce the voltage ripple and improve the power factor near the grid. The rectifier uses double-loop control strategy and the buck circuit uses the formula of the PV module to control output voltage and load current. Using Matlab simulation, the result proves feasibility and good performance of this scheme, and simulation waves can reflect the change of temperature and light intensity.

scholarly journals A Novel Double Closed-loop Control Method for Single-phase PWM Rectifier

2020 ◽  
Vol 53 (5) ◽  
pp. 518-523
Author(s):  
Wang Zeting ◽  
Zhu Guiqing ◽  
Zhang Hu
Keyword(s):  
Single Phase ◽  
Closed Loop ◽  
Control Method ◽  
Closed Loop Control ◽  
Pwm Rectifier ◽  
Loop Control

Power Performance Analysis of PV Module with DC to DC Buck Converter

2020 ◽  
Vol 8 (1) ◽  
pp. 27-39
Author(s):  
Niaj Murshed ◽  
Md. Salman Khan Tushar ◽  
Suman Chowdhury
Keyword(s):  
Output Power ◽  
Pid Control ◽  
Buck Converter ◽  
Proportional Integral Derivative ◽  
Matlab Simulation ◽  
Power Performance ◽  
Solar Module ◽  
Dc Voltage ◽  
Pv Module ◽  
Energy Application

The power performance of the PV module with dc-dc buck converter for photovoltaic energy application has been analyzed in this paper. Since the solar module produces DC voltage at various levels depending on irradiance variation, it is needed to connect a DC-DC converter to adjust the level of DC voltage at a certain level. The power output has been investigated by MATLAB simulation. To improve the output power Proportional Integral Derivative (PID) control is used. From the simulation, it has been observed that around 13.85 Watts more output power can be extracted if PID control is used.

Simulation Study on Single-Phase Parallel Type of APF Double Loop Control Technique

2014 ◽  
Vol 623 ◽  
pp. 187-194
Author(s):  
Sui Zhang ◽  
Wei Su ◽  
Yu Ku Qiao ◽  
Dong Dong Wang ◽  
Ji Luo
Keyword(s):  
Single Phase ◽  
Harmonic Wave ◽  
Design Procedure ◽  
Control Technique ◽  
Current Loop ◽  
System Control ◽  
Double Loop ◽  
Control Parameters ◽  
Loop Control ◽  
Parallel Type

This paper begins with analyzing the hazard of system harmonics and proposing the effectiveness of active power filter (APF) in harmonic wave inhibition. Against the background of single-phase parallel type of APF, its working principle is introduced and its mathematical model is built. Next, analyzed in details is the single-phase parallel type of APF double loop control system based on outer voltage loop and inner current loop, with the specific design procedure of PI control parameters of outer voltage loop and inner current loop presented. Finally, through MATLAB simulation, the designed system control parameters undergo verification. The simulation result indicates such single-phase parallel type of APF based on the double loop PI controller with outer voltage loop and inner current loop can ensure stability of the DC bus voltage and make effective compensation for harmonics over the mid-and low-frequency bands.

scholarly journals The Resistance Comparison Method Using Integral Controller for Photovoltaic Emulator

2018 ◽  
Vol 9 (2) ◽  
pp. 820 ◽  
Author(s):  
Razman Ayop ◽  
Chee Wei Tan ◽  
Cheng Siong Lim
Keyword(s):  
Control Strategy ◽  
Closed Loop ◽  
Current Mode ◽  
Comparison Method ◽  
Buck Converter ◽  
Generation System ◽  
Pv Module ◽  
Voltage Ripple ◽  
Integral Controller ◽  
Pv Generation

<span>A Photovoltaic (PV) emulator is a device that produces a similar output as the PV module and it is useful for testing the PV generation system. This paper present a new and simple control strategy for the PV emulator using the combination of the Resistance Comparison Method with the Integral Controller. The closed-loop buck converter system with the current-mode controlled and the single diode model are used for the PV emulator. The results obtained from the proposed PV emulator are compared with the conventional PV emulator using the Direct Referencing Method as the control strategy. The proposed PV emulator produces a more accurate output, 74 % faster transient response, and a lower output voltage ripple compared to the conventional PV emulator.</span>

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