Results 221 to 230 of about 9,411 (265)
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Large signal design of a buck converter for high power DC/AC conversion
1981 IEEE Power Electronics Specialists Conference, 1981The design of DC/AC power systems based on classical buck or buck-boost power cell structures implies large signal variation of the operating point duty cycle especially in the case of sine wave output.
J.C. Marpinard, J. Jalade, M. Valentin
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An attractive new converter topology for AC/DC, DC/DC & DC/AC power conversion
12th International Conference on Telecommunications Energy, 2002A new power converter topology is proposed. The new converter is essentially a four-quadrant converter offering several advantages. These include high efficiency, reduced size and weight, excellent dynamic performance, and inherent galvanic isolation.
G. Cimador, P. Prestifilippo
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Calculated effect of central DC/AC power conversion from PV generators with different orientations
Proceedings of 1994 IEEE 1st World Conference on Photovoltaic Energy Conversion - WCPEC (A Joint Conference of PVSC, PVSEC and PSEC), 2002The energy production of two PV/inverter configurations for a grid-connected PV power system consisting of roof and facade integrated subarrays with five different orientations and tilt angles was predicted by computer simulations. These calculations show that the total DC energy production of the system is practically not affected if the subarrays ...
T.C.J. van der Weiden, A.J. Kil
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Proceedings of PESC '95 - Power Electronics Specialist Conference, 2002
This paper presents a comparative study on the performance of two discrete delta modulation (DDM) schemes for DC-AC power conversion, namely the asynchronous (ADDM) scheme and the synchronous (SDDM) scheme. The ADDM scheme operates with asynchronous switching frequency and generates harmonics that spread over a wide range of frequency.
S. Sathiakumar, F. Pasalic, S.Y.R. Hui
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This paper presents a comparative study on the performance of two discrete delta modulation (DDM) schemes for DC-AC power conversion, namely the asynchronous (ADDM) scheme and the synchronous (SDDM) scheme. The ADDM scheme operates with asynchronous switching frequency and generates harmonics that spread over a wide range of frequency.
S. Sathiakumar, F. Pasalic, S.Y.R. Hui
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IEEE Transactions on Power Electronics, 2017
In this paper, a novel DHB power-decoupling control scheme without current sensor is proposed for single-phase inverters. As electrolyte capacitors are conventionally used; however, these capacitors limit ripple current capability and circuit reliability.
Mohammad Sameer Irfan +3 more
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In this paper, a novel DHB power-decoupling control scheme without current sensor is proposed for single-phase inverters. As electrolyte capacitors are conventionally used; however, these capacitors limit ripple current capability and circuit reliability.
Mohammad Sameer Irfan +3 more
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Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03., 2003
This paper proposes an improved DC-link circuit for soft switching inverters with fewer components (two auxiliary switches) involving simpler control. The operation principle and control arrangement of the modified DC-link circuit are explained. The experimental results from a 500 W laboratory prototype with a R-L load validate the operation of the ...
W. Shireen, R.A. Kulkarni
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This paper proposes an improved DC-link circuit for soft switching inverters with fewer components (two auxiliary switches) involving simpler control. The operation principle and control arrangement of the modified DC-link circuit are explained. The experimental results from a 500 W laboratory prototype with a R-L load validate the operation of the ...
W. Shireen, R.A. Kulkarni
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2007 IEEE Power Electronics Specialists Conference, 2007
This paper presents the configuration and control methods for a building block module suitable for application in a fully modular, AC-DC, DC-AC and DC-DC power conversion architecture, where the modules can be connected in any combination of series and parallel connections and support bidirectional power flow.
Harish K. Krishnamurthy, Raja Ayyanar
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This paper presents the configuration and control methods for a building block module suitable for application in a fully modular, AC-DC, DC-AC and DC-DC power conversion architecture, where the modules can be connected in any combination of series and parallel connections and support bidirectional power flow.
Harish K. Krishnamurthy, Raja Ayyanar
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2020 IEEE Energy Conversion Congress and Exposition (ECCE), 2020
This paper focuses on voltage balancing control of series-connected 10 kV SiC MOSFETs for medium-voltage dc-ac power conversion applications. Under ac load current conditions, gate delay time control is used as an example to analyze the limitation of active voltage balancing control methods: 1) active voltage balancing control has a limitation to ...
Xiang Lin +3 more
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This paper focuses on voltage balancing control of series-connected 10 kV SiC MOSFETs for medium-voltage dc-ac power conversion applications. Under ac load current conditions, gate delay time control is used as an example to analyze the limitation of active voltage balancing control methods: 1) active voltage balancing control has a limitation to ...
Xiang Lin +3 more
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Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03., 2003
30 kW electrical power conversion system is developed for a variable speed wind turbine system. In the wind energy conversion system (WECS) a synchronous generator converts the mechanical energy into electrical energy. As the voltage and frequency of generator output vary along the wind speed change, a DC-DC boosting chopper is utilized to maintain ...
null Seung-Ho Song +2 more
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30 kW electrical power conversion system is developed for a variable speed wind turbine system. In the wind energy conversion system (WECS) a synchronous generator converts the mechanical energy into electrical energy. As the voltage and frequency of generator output vary along the wind speed change, a DC-DC boosting chopper is utilized to maintain ...
null Seung-Ho Song +2 more
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2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016
A semi two-stage DC-AC power conversion system composed of a Boost DC/DC converter and a novel dual-input inverter is presented in this paper. The low voltage DC source and the output of the Boost DC/DC converter are used as the low-voltage and high-voltage DC input ports, respectively, of the dual-input inverter.
Tiantian Mu +3 more
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A semi two-stage DC-AC power conversion system composed of a Boost DC/DC converter and a novel dual-input inverter is presented in this paper. The low voltage DC source and the output of the Boost DC/DC converter are used as the low-voltage and high-voltage DC input ports, respectively, of the dual-input inverter.
Tiantian Mu +3 more
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