Investigation of Zero Sequence Injection Method For Balancing of Multi-level Cascaded-H Bridge Inverter

2018 ◽  
Author(s):  
Usman Hameed ◽  
Husnain Sadiq ◽  
Hassan Abdullah Khalid ◽  
Muhammad Umer Khan ◽  
Mazhar Ali
Keyword(s):  
Injection Method ◽  
Zero Sequence ◽  
Multi Level

Multi-Level Cascaded H-Bridge Inverter Based on Three Harmonic Injection Method

2014 ◽  
Vol 986-987 ◽  
pp. 1969-1972 ◽  
Author(s):  
Man Yuan Ye ◽  
Song Li
Keyword(s):  
Modulation Index ◽  
Switching Frequency ◽  
Load Voltage ◽  
Injection Method ◽  
Cell Switching ◽  
Harmonic Injection ◽  
Simulation And Experiment ◽  
Multi Level

This paper introduces seven-level Cascaded H-bridge (CHB) inverter and work principle. Then, the strongpoint and disadvantage of multi-level inverter usual PWM technologies are analyzed and compared. We find that multi-level cascaded inverter based on three harmonic injection method have two advantages via analysis. The voltage modulation index can increase 1.15. The equivalent switching frequency of H-bridge inverter’s load voltage is N times of each cell switching frequency. At last, H-bridge inverter was investigated with simulation and experiment. The results prove that the analysis is correctness and validity.

scholarly journals Dual Motor Control using Double Zero Sequence Injection Method in Five Leg Voltage Source Inverter

2020 ◽  
Vol 8 (5) ◽  
pp. 3122-3126
Keyword(s):  
Motor Control ◽  
Induction Motors ◽  
Voltage Source ◽  
Voltage Source Inverter ◽  
Double Zero ◽  
Injection Method ◽  
Zero Sequence ◽  
Modulation Signal ◽  
The One ◽  
Switching Devices

This paper presents in to Dual Motor Control using double zero sequence injection method in 5- leg voltage source inverter. As industry looking for reducing the semiconductor switching devices, like IGBT/MOSFET’s in dual induction motor control. The main reason behind reducing the switching elements to reduce the weight, cost and size of the components. As conventional inverter require six inverter legs to control two induction motors. In this proposed work five inverter legs used instead of six legs in dual motor control. With this reduced one leg, two switching devices will be reduced and one phase of the inverter leg is common between the two motors, so called five leg inverter (FLI). The main switching methodology used for inverter control is Carrier based Double Zero Sequence Injection Method (DZSM). This Double Zero Sequence Injection Method applied to FLI system is having the one common leg. One of the C Phase modulation signal added to other modulating signals of all phases of other motor respectively. A subsequent each phase degree of freedom is represented by the zero-sequence signal. This paper investigates the independent speed control of dual induction motors at different speeds connected to five leg voltage source inverter system, using MATLAB/SIMULINK Software.

Sign in / Sign up

Export Citation Format

Share Document