Novel Scheme to Improve Power Factor of Slip Energy Recovery Drive by Selective Harmonic Elimination
-
C. Ismayil
and
M. Nanda Kumar
Abstract
In this paper, the harmonic analysis of inverter voltage of a slip energy recovery drive (SERD) is carried out and proposes a novel approach to improve the supply side power factor of the overall drive system. The proposed model is a self-commutated SERD using IGBT inverter, and a modulation technique called selective harmonic elimination (SHE) is applied to improve the supply side power factor. The complete solutions for switching patterns to eliminate the fifth and seventh harmonics are developed using genetic algorithm. SHE method is simulated in semi-open-loop mode, and the power factor of the drive is compared with conventional line commutated thyristor inverter-based SERD. Simulations have been carried out in Matlab/Simulink environment to predetermine the performance of the drive, and results show a significant improvement in the input power factor of the drive.
Acknowledgments
The first author takes this opportunity to express his deep sense of gratitude from the depth of his heart to his project guide Dr K. Sundareswaran, Professor, Department of Electrical and Electronics Engineering, National Institute of Technology, Tiruchirappalli for his invaluable guidance, moral support, kind cooperation and indispensable help throughout his PG course at the same institute.
Appendix: Parameters of the induction motor
| Parameter | Symbol | Value |
| Rated power | Prat | 5 H.P. (3.73 kW) |
| Rated stator voltage* | Vs,rat | 400 V |
| Rated stator current** | Is,rat | 7.5 A |
| Rated frequency | frat | 50 Hz |
| Rated slip | Srat | 0.0667 |
| Rated speed | Nrat | 1,400 rpm |
| Rated torque | Tm,rat | 25.4 N-m |
| Number of pole pairs | p | 2 |
| Stator connection | Wye/delta | |
| Stator resistance | rs | 1.7 Ω/phase |
| Stator leakage reactance at 50 Hz | xls | 2.4 Ω/phase |
| Stator reactance at 50 Hz | xs = xls + xm | 68.88 Ω/phase |
| Stator inductance | Ls | 0.2193 H/phase |
| Rotor resistance | rr | 4.3 Ω/phase |
| Rotor leakage reactance at 50 Hz | xlr | 2.4 Ω/phase |
| Rotor reactance at 50 Hz | xr = xlr + xm | 68.88 Ω/phase |
| Rotor inductance | Lr | 0.2193 H/phase |
| Magnetizing reactance at 50 Hz | Xm | 66.49 Ω/phase |
| Magnetizing inductance | Lm | 0.2116 H/phase |
| Rotor mass moment of inertia | J | 0.092 N-m/(rad/s) |
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Articles in the same Issue
- Frontmatter
- Research Articles
- A Comparative Study of Mathematical Modeling of Photovoltaic Array
- A New Advanced Topology of Stacked Multicell Inverter
- Augmented State Approach in Quasi-Sliding-Mode Controlled PEBB-Based Power Converters
- Evaluation of Gas Insulated Disconnector Switch for Bus Charging and Bus Transfer Currents
- Grid Stabilization with Decentralized Controllable Loads using Fuzzy Control and Droop Characteristics
- Novel Scheme to Improve Power Factor of Slip Energy Recovery Drive by Selective Harmonic Elimination
- Single-Phase Power Generation Using Three-Phase Self-Excited Synchronous Reluctance Generator
- Voltage Balancing Scheme in MMC – A New Approach
- Modelling and Analysis of a Three-Phase to Five-Phase Transformer
- Novel Cell Flying Capacitor Converter Topology with Significant Reduction in Number of Components
Articles in the same Issue
- Frontmatter
- Research Articles
- A Comparative Study of Mathematical Modeling of Photovoltaic Array
- A New Advanced Topology of Stacked Multicell Inverter
- Augmented State Approach in Quasi-Sliding-Mode Controlled PEBB-Based Power Converters
- Evaluation of Gas Insulated Disconnector Switch for Bus Charging and Bus Transfer Currents
- Grid Stabilization with Decentralized Controllable Loads using Fuzzy Control and Droop Characteristics
- Novel Scheme to Improve Power Factor of Slip Energy Recovery Drive by Selective Harmonic Elimination
- Single-Phase Power Generation Using Three-Phase Self-Excited Synchronous Reluctance Generator
- Voltage Balancing Scheme in MMC – A New Approach
- Modelling and Analysis of a Three-Phase to Five-Phase Transformer
- Novel Cell Flying Capacitor Converter Topology with Significant Reduction in Number of Components
