New Selective Harmonic Elimination-Pulse-Width Modulation for Cascaded H-bridge Multilevel Inverters
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Piyush L. Kamani
und
Mahmadasraf A. Mulla
Abstract
This paper presents a univariate equation-based selective harmonic elimination-pulse-width modulation (USHE-PWM) method for cascaded H-bridge (CHB) multilevel inverters (MLIs). Using equal-area criteria, the selection of voltage rating of dc-links have been done. The output voltage is controlled by inserting switching notch at the centre of each level of output voltage. Instead of conventional transcendental SHE-PWM equations, all these calculations are accomplished using univariate equations. This simplifies the real-time implementation of the proposed method greatly, even for the MLI with a large number of levels. The USHE-PWM method can eliminate more harmonics compared with the conventional SHE-PWM methods. While controlling the output voltage, the harmonic pattern remains unaffected. The validity of the proposed method is confirmed by the simulation and experimental studies.
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- Research Article
- Simulation of Modified Flyback Snubber Circuit for Isolated Bidirectional DC-DC Converter
- Design of Cost Effective Solar PV Powered SRM Driven Agriculture Pump Using Modified Buck-Boost Converter
- High Step-Up Boost Converter with Neural Network Based MPPT Controller for a PEMFC Power Source Used in Vehicular Applications
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- Operation of Direct Power Control Scheme in Grid-Connected Mode Using Improved Sliding Mode Observer and Controller
- Enhancement of Power Quality in Wind Based Distributed Generation System Using Adaptive Vectorial Filter
- Intelligence Scheme for Fault Location in a Combined Overhead Transmission Line & Underground Cable
- Adaptive Algorithm for Distribution Transformer Protection to Improve Smart Grid Stability
- LQR Based Control Method for Grid Connected and Islanded DG System
- Charging Coordination of Plug-In Electric Vehicle for Congestion Management in Distribution System
- A Unique Concept of Limited Grid Capacity and Voltage-Frequency Control of an RES Based Rural Electrification System
- Multi-Objective based Optimal Generation Scheduling Considering Wind and Solar Energy Systems
- New Selective Harmonic Elimination-Pulse-Width Modulation for Cascaded H-bridge Multilevel Inverters
- Novel PWM Control with Modified PSO-MPPT Algorithm for Reduced Switch MLI Based Standalone PV System
- Reduced Switch Technique for Solar PV System Based Multilevel Inverter for PQ Improvement
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