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RISS 인기검색어
- 검색키워드
- 저자 : Karuvelam, P. Subha (검색결과 4 건)
- 무료
- 기관 내 무료
- 유료
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Real time Implementation of SHE PWM in Single Phase Matrix Converter using Linearization Method
Karuvelam, P. Subha,Rajaram, M. The Korean Institute of Electrical Engineers 2015 Journal of Electrical Engineering & Technology Vol.10 No.4
In this paper, a real time implementation of selective harmonic elimination pulse width modulation (SHEPWM) using Real Coded Genetic Algorithm (RGA), Particle Swarm Optimization technique (PSO) and a new technique known as Linearization Method (LM) for Single Phase Matrix Converter (SPMC) is designed and discussed. In the proposed technique, the switching frequency is fixed and the optimum switching angles are obtained using simple mathematical calculations. A MATLAB simulation was carried out, and FFT analysis of the simulated output voltage waveform confirms the effectiveness of the proposed method. An experimental setup was also developed, and the switching angles and firing pulses are generated using Field Programmable Gate Array (FPGA) processor. The proposed method proves that it is much applicable in the industrial applications by virtue of its suitability in real time applications.
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Real time Implementation of SHE PWM in Single Phase Matrix Converter using Linearization Method
P. Subha Karuvelam,M. Rajaram 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.4
In this paper, a real time implementation of selective harmonic elimination pulse width modulation (SHEPWM) using Real Coded Genetic Algorithm (RGA), Particle Swarm Optimization technique (PSO) and a new technique known as Linearization Method (LM) for Single Phase Matrix Converter (SPMC) is designed and discussed. In the proposed technique, the switching frequency is fixed and the optimum switching angles are obtained using simple mathematical calculations. A MATLAB simulation was carried out, and FFT analysis of the simulated output voltage waveform confirms the effectiveness of the proposed method. An experimental setup was also developed, and the switching angles and firing pulses are generated using Field Programmable Gate Array (FPGA) processor. The proposed method proves that it is much applicable in the industrial applications by virtue of its suitability in real time applications.
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PV Fed EV Charging System Based on Re-lift Luo Converter and DAB Converter
Kumar A. Muthuram,Karuvelam P. Subha 대한전기학회 2023 Journal of Electrical Engineering & Technology Vol.18 No.4
The insufficiency and soaring rate of fossil fuels, as well as growing concerns about global warming, have pushed electric vehicles (EVs) to become a significant aspect of the future transportation system. The growth in the adoption of EVs results in the need for broadly spread charging stations, hence a Photovoltaic (PV) based EV charging system is adopted since the generation of power from PV is possible everywhere. An EV charging system with two converters is constructed in this research work, one of which is a re-lift Luo converter and the other is a Dual Active Bridge (DAB) converter. A re-lift Luo converter is adopted for the conversion of the low PV voltage output to an enhanced voltage of a higher level. The DAB converter is effective in providing the required galvanic isolation and allowing bidirectional power flow. The PV system’s output voltage fluctuates with changing weather conditions and solar irradiation. Hence, the operation of the re-lift Luo converter is controlled by using the Fuzzy Logic Controller (FLC), which is highly capable of addressing the uncertainties associated with PV output. The operation of the DAB converter is controlled by implementing the Phase Shift (PS) control technique. MATLAB simulation is done to validate the proposed system's performance.
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Cascaded Fuzzy Logic Controlled Modular Multilevel Converter for PV Based DSTATCOM Applications
Umadevi C.,Sundari M. Gnana,Karuvelam P. Subha 대한전기학회 2024 Journal of Electrical Engineering & Technology Vol.19 No.3
This paper analyses the implementation of modular multi level converter (MMLC) in the application of grid connected Photovoltaic system in an efcient manner. As MMLC exhibits properties of high modularity and scalability, it is highly suitable for the high power applications, which makes MMLC to be preferred in this study as an apt replacement of the conventional DC–DC converters. A unifed control using a cascaded fuzzy logic controller (CFLC) is proposed for both the maximum power point tracking and modular 7 level converter (M7LC) control. The CFLC is analogized with the conventional PI and Fuzzy controllers under both the normal and partial shaded conditions. The entire system is assessed with the aid of using MATLAB simulation. The observed outcomes exhibit that total harmonic distortion (THD) of line current is minimum under all operating conditions when the CFLC is used for M7LC. The prototype of the proposed M7LC with CFLC is implemented in FPGA SPARTAN 6E controller for the experimental validation. The proposed approach delivers lesser THD of 1.02% under normal condition and 1.12% under partial shading condition.
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