A fractal based space vector PWM scheme for general n- level inverters

2010 ◽  
Author(s):  
G. Shiny ◽  
M. R. Baiju
Keyword(s):  
Space Vector Pwm ◽  
Space Vector ◽  
N Level

A Simple Space Vector PWM Generation Scheme for Any General $n$-Level Inverter

2009 ◽  
Vol 56 (5) ◽  
pp. 1649-1656 ◽  
Author(s):  
Aneesh Mohamed A. S. ◽  
Anish Gopinath ◽  
M. R. Baiju
Keyword(s):  
Space Vector Pwm ◽  
Space Vector ◽  
N Level

scholarly journals A Space Vector PWM Scheme for Three level Inverters Based on Two-Level Space Vector PWM

2011 ◽  
pp. 6-10
Author(s):  
D. Sandhya Rani ◽  
A. Appaprao
Keyword(s):  
Pulse Width Modulation ◽  
Multilevel Inverter ◽  
Superior Performance ◽  
Space Vector Pwm ◽  
Space Vector ◽  
Medium Voltage ◽  
Multilevel Inverters ◽  
N Level ◽  
Simple Mapping ◽  
Selection Of

Multilevel inverters are increasingly being used in high-power medium voltage applications due to their superior performance compared to two-level inverters. Among various modulation techniques for a multilevel inverter, the space vector pulse width modulation (SVPWM) is widely used. The complexity is due to the difficulty in determining the location of the reference vector, the calculation of ontimes, and the determination and selection of switching states. This paper proposes a general SVPWM algorithm for multilevel inverters based on standard two-level SVPWM. Since the proposed multilevel SVPWM method uses two-level modulation to calculate the on-times, the computation of on-times for an n-level inverter becomes easier. The proposed method uses a simple mapping to achieve the SVPWM for a multilevel inverter. A general n-level implementation is explained, and experimental results are given for two-level and three-level inverters.

A General Space Vector PWM Scheme for Multilevel Inverter

2012 ◽  
Vol 482-484 ◽  
pp. 390-393
Author(s):  
Wen Lu ◽  
Li Wei ◽  
Hui Ren
Keyword(s):  
State Equation ◽  
Multilevel Inverter ◽  
Reference Vector ◽  
Space Vector Pwm ◽  
Space Vector ◽  
Voltage Inverter ◽  
N Level ◽  
Space State ◽  
Compensation Device ◽  
Cascaded Multilevel Inverter

This paper introduces a simple space vector PWM algorithm for a cascaded multilevel inverter. The scheme determines the location of the reference vector easily. It uses space state equation to get the value of vector. A cascaded thirteen-level inverter is used to explain the scheme. The scheme can be easily extended to n-level inverter. It is applicable to cascaded multilevel high voltage inverter and cascaded active compensation device. The result of simulation verifies that the scheme is useful in improving utilization of the direct current (dc) link voltage and reducing THD.

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