Abstract
Selective Harmonic Elimination (SHE) technique is the fundamental switching frequency scheme that is used to eliminate specific order harmonics. Its application to minimize low order harmonics in a three level inverter is proposed in this paper. The modulation strategy used here is SHEPWM and the nonlinear equations, that characterize the low order harmonics, are solved using Harmony Search Algorithm (HSA) to obtain the optimal switching angles that minimize the required harmonics and maintain the fundamental at the desired value. Total Harmonic Distortion (THD) of the output voltage is minimized maintaining selected harmonics within allowable limits. A comparison has been drawn between HSA, Genetic Algorithm (GA) and Newton Raphson (NR) technique using MATLAB software to determine the effectiveness of getting optimized switching angles.
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Articles in the same Issue
- Frontmatter
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- Fault Analysis in a Grid Integrated DFIG Based Wind Energy System with NA CB_P Circuit for Ridethrough Capability and Power Quality Improvement
- Efficiency Improvements in Meta-Heuristic Algorithms to Solve the Optimal Power Flow Problem
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- Improved Control Strategy for Subsynchronous Resonance Mitigation with Fractional-order PI Controller
- A Novel Approach to the Design of Passive Filters in Electric Grids
- Real-Time Smart Grids Control for Preventing Cascading Failures and Blackout using Neural Networks: Experimental Approach for N-1-1 Contingency
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Articles in the same Issue
- Frontmatter
- Development of Real Time Implementation of 5/5 Rule based Fuzzy Logic Controller Shunt Active Power Filter for Power Quality Improvement
- Fault Analysis in a Grid Integrated DFIG Based Wind Energy System with NA CB_P Circuit for Ridethrough Capability and Power Quality Improvement
- Efficiency Improvements in Meta-Heuristic Algorithms to Solve the Optimal Power Flow Problem
- A Novel Load Shedding Scheme for Voltage Stability
- Path Searching Based Fault Automated Recovery Scheme for Distribution Grid with DG
- Harmonic Optimization in Voltage Source Inverter for PV Application using Heuristic Algorithms
- Improved Control Strategy for Subsynchronous Resonance Mitigation with Fractional-order PI Controller
- A Novel Approach to the Design of Passive Filters in Electric Grids
- Real-Time Smart Grids Control for Preventing Cascading Failures and Blackout using Neural Networks: Experimental Approach for N-1-1 Contingency
- Validation of a Nonlinear Average Model of NPC Inverters Based on Experimental Investigations