Design and comparison of iron losses mathematical model with single phase and three phase PWM inverter supply

2008 ◽  
Author(s):  
Siriwich Tadsuan ◽  
Chanwit Tangsiriworakul
Keyword(s):  
Mathematical Model ◽  
Single Phase ◽  
Pwm Inverter ◽  
Iron Losses ◽  
Three Phase

The Model of Distributed Grid-Connected DC Micro Network Inverters and Double Loop Control Method

2013 ◽  
Vol 760-762 ◽  
pp. 1131-1135
Author(s):  
Jian Ye Liu ◽  
Chang Ge Tian ◽  
Shan Shan Jiang ◽  
Zhi Peng Ge
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Double Loop ◽  
Small Signal ◽  
Loop Control ◽  
Pwm Inverter ◽  
Phase Inverter ◽  
Analysis And Design ◽  
Three Phase ◽  
Three Phase Inverter

In this paper, for parallel operation of the three-phase PWM inverter control system, we put forward and set up the equivalent grid inverter mathematical model. In the process of grid inverter equivalent model is discussed, for the three-phase inverter system is a nonlinear system, in order to facilitate the performance of the system analysis and design of the control system, the transfer function of the system were analyzed to the linearized system. After the linearization control the theory system can be discussed using the method of classical. On the premise of system average model we get the static working point system, according to the law of small signal, we can obtain the small signal mathematical model .At the same time, discusses the three phase inverter design of double loop control system.

scholarly journals An electronic solution for the direct connection of a three-phase induction generator to a single-phase feeder

2009 ◽  
Vol 20 (3) ◽  
pp. 417-426 ◽  
Author(s):  
Ricardo Q. Machado ◽  
Amílcar F. Q. Gonçalves ◽  
Simone Buso ◽  
José A. Pomilio
Keyword(s):  
Power Quality ◽  
Power Flow ◽  
Power Plants ◽  
Single Phase ◽  
Reactive Power ◽  
Induction Generator ◽  
Direct Connection ◽  
Hydro Power ◽  
Pwm Inverter ◽  
Three Phase

This paper proposes a solution for the direct connection of a three-phase induction generator to a single-phase feeder. This high power quality system is intended to be used in micro-hydro power plants applications with control of the water flow. It is employed to maintain the speed of the induction generator greater than its synchronous value. The difference between the generated power and the power consumed by the local load flows through the single-phase feeder. The power flow control is provided by a three-phase PWM inverter that additionally guarantees the local power quality. A system with good power quality must have sinusoidal and constant amplitude voltages, fixed frequency operation, balanced induction generator voltages and currents, harmonics and reactive power compensation. The paper describes the inverter control strategy, presents design criteria of the controllers, and shows experimental results.

A Novel Model for Predicting Iron Losses of Electrical Steels Fed by PWM Inverter

2011 ◽  
Vol 298 ◽  
pp. 179-182
Author(s):  
Ping Lin Huang ◽  
Guo Sheng Cheng ◽  
Ai Ping Yan
Keyword(s):  
Calculation Model ◽  
Modulation Index ◽  
Measuring System ◽  
Material Loss ◽  
Electrical Steels ◽  
Pwm Inverter ◽  
System A ◽  
Iron Losses ◽  
Three Phase ◽  
Novel Model

Based on the Bessel function, a novel calculation model of iron losses of electric magnetic material fed by PWM inverter is proposed. Considering the influence of modulation index of inverters, the numerical relationship between material iron losses and PWM modulation index is presented. By improving on the Epstein frame measuring system, a method is proposed to measure the material loss under non-sinusoidal voltage, two three-phase experimental induction motors fed by inverter is considered, the results prove the model is valid.

MODELING SYSTEMS DIRECT TORQUE CONTROL USING А THREE-PHASE MATHEMATICAL MODEL

2016 ◽  
Vol 22 (98) ◽  
pp. 56-61
Author(s):  
Vladislav A. Kosenko ◽  
◽  
Valeriy O. Kvashnin ◽  
Keyword(s):  
Mathematical Model ◽  
Direct Torque Control ◽  
Torque Control ◽  
Modeling Systems ◽  
Three Phase
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