Design and simulation of cascaded H- bridge multilevel inverter based dstatcom for compensation of reactive power and harmonics
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This document discusses the design and simulation of a five-level cascaded H-bridge inverter as a distribution static compensator (DSTATCOM) for improving power factor and eliminating harmonics in power systems. It details the advantages of this inverter, including low harmonic distortion and reduced switching losses, and presents simulation results using MATLAB/Simulink. The findings highlight the effectiveness of the proposed DSTATCOM model in mitigating issues associated with non-linear diode rectifier loads.
![ELECTRICAL PROJECTS USING MATLAB/SIMULINK
Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in
0-9347143789/9949240245
For Simulation Results of the project Contact Us
Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in
0-9347143789/9949240245
CONCLUSION:
A DSTATCOM with five level CHB inverter is investigated. Mathematical model for single H-
Bridge inverter is developed which can be extended to multi H Bridge. The source voltage , load
voltage , source current, load current, power factor simulation results under nonlinear loads are
presented. Finally Matlab/Simulink based model is developed and simulation results are
presented.
REFERENCES:
[ I ] K.A Corzine. and Y.L Familiant, "A New Cascaded Multi-level HBridge Drive:' IEEE
Trans. Power.Electron .• vol. I 7. no. I. pp. I 25-I 3 I . Jan 2002.
[2] J.S.Lai. and F.Z.Peng "Multilevel converters - A new bread of converters, "IEEE Trans.
Ind.Appli .• vo1.32. no.3. pp.S09-S17. May/ Jun. 1996.
[3] T.A.Maynard. M.Fadel and N.Aouda. "Modelling of multilevel converter:' IEEE Trans.
Ind.Electron .• vo1.44. pp.3S6-364. Jun. I 997.
[4] P.Bhagwat. and V.R.Stefanovic. "Generalized structure of a multilevel PWM Inverter:' IEEE
Trans. Ind. Appln, VoI.IA-19. no.6, pp. I OS7-1069, Nov.!Dec .. 1983.
[5] J.Rodriguez. Jih-sheng Lai, and F Zheng peng, "Multilevel Inverters; A Survey of
Topologies, Controls, and Applications," IEEE Trans. Ind. Electron., vol.49 , n04., pp.724-738.
Aug.2002.](https://image.slidesharecdn.com/designandsimulationofcascadedh-bridgemultilevelinverterbaseddstatcomforcompensationofreactivepoweran-161201071758/85/Design-and-simulation-of-cascaded-H-bridge-multilevel-inverter-based-dstatcom-for-compensation-of-reactive-power-and-harmonics-6-320.jpg)
Design and simulation of cascaded H- bridge multilevel inverter based dstatcom for compensation of reactive power and harmonics
- 1. ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in 0-9347143789/9949240245 For Simulation Results of the project Contact Us Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in 0-9347143789/9949240245 Design and Simulation of Cascaded H-Bridge Multilevel Inverter Based DSTATCOM for Compensation of Reactive Power and Harmonics ABSTRACT: This paper presents an investigation of five-Level Cascaded H - bridge (CHB) Inverter as Distribution Static Compensator (DSTATCOM) in Power System (PS) for compensation of reactive power and harmonics. The advantages of CHB inverter are low harmonic distortion, reduced number of switches and suppression of switching losses. The DST ATCOM helps to improve the power factor and eliminate the Total Harmonics Distortion (THD) drawn from a Non-Liner Diode Rectifier Load (NLDRL). The D-Q reference frame theory is used to generate the reference compensating currents for DSTATCOM while Proportional and Integral (PI) control is used for capacitor dc voltage regulation. A CHB Inverter is considered for shunt compensation of a 11 kV distribution system. Finally a level shifted PWM (LSPWM) and phase shifted PWM (PSPWM) techniques are adopted to investigate the performance of CHB Inverter. The results are obtained through Matlab/Simulink software package. KEYWORDS: 1. DSTATCOM 2. Level shifted Pulse width modulation (LSPWM) 3. Phase shifted Pulse width modulation (PSPWM) 4. Proportional-Integral (PI) control 5. CRB multilevel inverter 6. D-Q reference frame theory SOFTWARE:MATLAB/SIMULINK
- 2. ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in 0-9347143789/9949240245 For Simulation Results of the project Contact Us Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in 0-9347143789/9949240245 SCHEMATIC DIAGRAM: Fig. 1 Schematic Diagram of a DST ATCOM Fig. 2 Block diagram of 5-level CHB inverter model
- 3. ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in 0-9347143789/9949240245 For Simulation Results of the project Contact Us Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in 0-9347143789/9949240245 EXPECTED SIMULATION RESULTS: Fig. 3 five level PSCPWM output Fig. 4 Source voltage, current and load current without DSTATCOM
- 4. ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in 0-9347143789/9949240245 For Simulation Results of the project Contact Us Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in 0-9347143789/9949240245 Fig. 5 DC Bus Vooltage Fig. 6 Phase-A source voltage and current
- 5. ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in 0-9347143789/9949240245 For Simulation Results of the project Contact Us Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in 0-9347143789/9949240245 Fig. 7 Harmonic spectrumof Phase-A Source current without DSTATCOM Fig. 8 Harmonic spectrumof Phase-A Source current with DSTATCOM
- 6. ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in 0-9347143789/9949240245 For Simulation Results of the project Contact Us Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in 0-9347143789/9949240245 CONCLUSION: A DSTATCOM with five level CHB inverter is investigated. Mathematical model for single H- Bridge inverter is developed which can be extended to multi H Bridge. The source voltage , load voltage , source current, load current, power factor simulation results under nonlinear loads are presented. Finally Matlab/Simulink based model is developed and simulation results are presented. REFERENCES: [ I ] K.A Corzine. and Y.L Familiant, "A New Cascaded Multi-level HBridge Drive:' IEEE Trans. Power.Electron .• vol. I 7. no. I. pp. I 25-I 3 I . Jan 2002. [2] J.S.Lai. and F.Z.Peng "Multilevel converters - A new bread of converters, "IEEE Trans. Ind.Appli .• vo1.32. no.3. pp.S09-S17. May/ Jun. 1996. [3] T.A.Maynard. M.Fadel and N.Aouda. "Modelling of multilevel converter:' IEEE Trans. Ind.Electron .• vo1.44. pp.3S6-364. Jun. I 997. [4] P.Bhagwat. and V.R.Stefanovic. "Generalized structure of a multilevel PWM Inverter:' IEEE Trans. Ind. Appln, VoI.IA-19. no.6, pp. I OS7-1069, Nov.!Dec .. 1983. [5] J.Rodriguez. Jih-sheng Lai, and F Zheng peng, "Multilevel Inverters; A Survey of Topologies, Controls, and Applications," IEEE Trans. Ind. Electron., vol.49 , n04., pp.724-738. Aug.2002.