Control of z-source photovoltaic inverter for grid-connected based on constant-frequency hysteresis current control

2011 ◽  
Author(s):  
Guo Ke ◽  
Chen Yan ◽  
Gan Yuanxing ◽  
Zhou Lin
Keyword(s):  
Current Control ◽  
Constant Frequency ◽  
Hysteresis Current Control

A Hysteretic Current Controller for Active Power Filter (APF) with Constant Frequency

2012 ◽  
Vol 460 ◽  
pp. 308-312
Author(s):  
Qing Shou Song
Keyword(s):  
Control Method ◽  
Current Control ◽  
Switching Frequency ◽  
Matlab Simulation ◽  
Constant Frequency ◽  
Hysteresis Current Control ◽  
Power Filter ◽  
Switching Losses ◽  
Current Controller ◽  
Frequency State

In accordance with the advantage of conventional hysteresis current control method, this paper advances a novel control method for APF. In conventional hysteresis current control, the hysteresis band (HB) is fixed and actual compensating current is limited in a fixed HB. Firstly, the connection between HB and switching frequency must be found correctly. Then, the variable hysteresis band current controller is designed according to the connection. Finally, the Matlab simulation results show that the switching frequency of VSI is held nearly constant and the proposed controller can track reference current well[1]. The problems of increasing switching losses and audible noise which happened in high-frequency state can be resolved in conventional hysteresis current control.

Design and Digital Implementation of Constant Frequency Hysteresis Current Controller for Three-Phase Voltage Source Inverter Using TMS320F2812

2014 ◽  
Vol 15 (1) ◽  
pp. 13-23 ◽  
Author(s):  
D. Kalyanraj ◽  
S. Lenin Prakash
Keyword(s):  
Current Control ◽  
Control Technique ◽  
Voltage Source ◽  
Phase Voltage ◽  
Inductive Load ◽  
Constant Frequency ◽  
Digital Implementation ◽  
Hysteresis Current Control ◽  
Current Controller ◽  
Three Phase

Abstract A constant frequency hysteresis current control technique for a three-phase voltage source inverter (VSI) has been developed for AC drives, power quality and renewable energy applications. This paper presents a digital implementation of a constant frequency hysteresis current control technique for a three-phase VSI feeding an inductive load, using digital signal controller TMS320F2812. The limitations of variable frequency hysteresis control have been discussed and overcoming these limitations by means of digital implementation has been proposed. The complete design procedure of the proposed technique has been presented with an illustrative example. The three-phase VSI feeding an inductive load has also been simulated by using MATLAB and the simulation results have been presented. The hardware results of hysteresis current controlled three-phase VSI feeding an inductive load have been presented. Also the performance analysis of the hysteresis current controller has been presented. Operation of this controller has also been explained with a help of phase plane trajectory of hysteresis controller.

A novel hysteresis current control for active power filter with constant frequency

2004 ◽  
Vol 68 (1) ◽  
pp. 75-82 ◽  
Author(s):  
Jiang Zeng ◽  
Chang Yu ◽  
Qingru Qi ◽  
Zheng Yan ◽  
Yixin Ni ◽  
...  
Keyword(s):  
Active Power Filter ◽  
Active Power ◽  
Current Control ◽  
Constant Frequency ◽  
Hysteresis Current Control ◽  
Power Filter

scholarly journals Review on Current Control Techniques of Grid Connected PWM-VSI Based Distributed Generation

2019 ◽  
Vol 17 (2) ◽  
pp. 152-168 ◽  
Author(s):  
Sajid Hussain Qazi ◽  
Mohd Wazir Mustafa ◽  
Shakir Ali
Keyword(s):  
Power Generation ◽  
Distributed Generation ◽  
Current Control ◽  
Constant Frequency ◽  
Control Techniques ◽  
Hysteresis Current Control ◽  
Nonlinear Controllers ◽  
On Line ◽  
And Control ◽  
Predictive Controllers

Nowadays, new trends in the industry of electricity generation are to enhance the power generation by employing distributed generation (DG) system which is mostly based on renewable generation sources such as wind, solar, etc. However, many power quality problems could arise on existing grid when DG is connected or the operation of distributed energy resources (DER) is not controlled properly. That's why, while integrating DG with the power grid, a seamless attention should be given to power generation and safe running of system. Several methods, having a diverse concept, have been divided into two main sets: linear and nonlinear controllers. The first group comes with PI controller and parameter feedback controller, and control by means of constant frequency with predictive techniques. The second group includes hysteresis current control and on-line optimization for predictive controllers. Additionally, new current control techniques with neural networks and fuzzy based controllers are also discussed. Selected methods associate the arrangement for the sake to demonstrate the described groups of the controller.

Sign in / Sign up

Export Citation Format

Share Document