Full Feedforward of Grid Voltage for Grid-Connected Inverter With LCL Filter to Suppress Current Distortion Due to Grid Voltage Harmonics

2010 ◽  
Vol 25 (12) ◽  
pp. 3119-3127 ◽  
Author(s):  
Xuehua Wang ◽  
Xinbo Ruan ◽  
Shangwei Liu ◽  
Chi K. Tse
Keyword(s):  
Lcl Filter ◽  
Grid Voltage ◽  
Grid Connected Inverter ◽  
Voltage Harmonics

scholarly journals A novel current controller design for grid-integrated PV inverter system

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Ayaz Ahmad ◽  
L. Rajaji ◽  
A. Iqbal
Keyword(s):  
Controller Design ◽  
Vital Role ◽  
Current Feedback ◽  
Lcl Filter ◽  
Design Algorithm ◽  
Grid Voltage ◽  
Pv Inverter ◽  
Current Controller ◽  
Experimental Implementation ◽  
Grid Connected Inverter

AbstractDistributed generators are playing a vital role in supporting the grid in ever-increasing energy demands. Grid code regulation must be followed when integrating the photovoltaic inverter system to the grid. The paper investigates and analyzes a controller model for grid-connected PV inverters to inject sinusoidal current to the grid with minimum distortion. To achieve better tracking and disturbance rejection, a DSP-based current controller is designed with LCL filter. The controller gets the current feedback from the grid, compares it with reference current, and calculates duty cycle to generate PWM pulses to trigger H-bridge converters. The grid voltage is loaded to the initial value in proposed PR controller to ensure the initial inverter voltage to match the grid voltage. The paper presents a novel current controller algorithm for grid-connected inverter system, and simulation is done. A detailed analysis has been carried out to validate the proposed design algorithm. Experimental implementation of the current controller in the DC/AC converter circuits with an LCL filter is done for 5.4 kW to validate and match the simulation model.

Full Feedforward of Grid Voltage for Discrete State Feedback Controlled Grid-Connected Inverter With LCL Filter

2012 ◽  
Vol 27 (10) ◽  
pp. 4234-4247 ◽  
Author(s):  
Mingyu Xue ◽  
Yu Zhang ◽  
Yong Kang ◽  
Yongxian Yi ◽  
Shuming Li ◽  
...  
Keyword(s):  
State Feedback ◽  
Lcl Filter ◽  
Discrete State ◽  
Grid Voltage ◽  
Grid Connected Inverter

Voltage Sensorless Model Predictive Control for a Grid-Connected Inverter with LCL Filter

2021 ◽  
pp. 1-1
Author(s):  
Nguyen Ngoc Ngoc Nam ◽  
Ngoc-Duc Nguyen ◽  
Changwoo Yoon ◽  
Minho Choi ◽  
Young Il Lee
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Lcl Filter ◽  
Grid Connected Inverter

Modeling and Control of a Single-Phase Grid-Connected Inverter with LCL Filter

2021 ◽  
Vol 19 (02) ◽  
pp. 250-259
Author(s):  
Jakson Paulo Bonaldo ◽  
Jose de Arimateia Olimpio Filho ◽  
Augusto Matheus dos Santos Alonso ◽  
Helmo Kelis Morales Paredes ◽  
Fernando Pinhabel Marafao
Keyword(s):  
Single Phase ◽  
Lcl Filter ◽  
Modeling And Control ◽  
Grid Connected Inverter ◽  
And Control
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