The Experts below are selected from a list of 4950 Experts worldwide ranked by ideXlab platform
Chem V Nayar - One of the best experts on this subject based on the ideXlab platform.
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a single phase parallely connected Uninterruptible Power Supply demand side management system
IEEE Transactions on Energy Conversion, 2000Co-Authors: Mochamad Ashari, W.l. Keerthipala, Chem V NayarAbstract:This paper presents the application of a single-phase parallel converter as an Uninterruptible Power Supply and demand side management system. The proposed system consists of a bi-directional inverter that is connected in parallel to the utility system. When the grid system fails, the converter will convert the Power from the battery to the AC side (utility side) at the mains voltage and frequency. On the other hand, when the utility is normal the converter will act as a demand side management system. It charges the battery during low load and shaves the transient load at the peak period system. This improves the pattern of the demand variation in the utility side. This paper presents the operational principle of the Uninterruptible Power Supply and demand side management system, laboratory, and simulation results.
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A single phase parallely connected Uninterruptible Power Supply/demand side management system
IEEE Transactions on Energy Conversion, 2000Co-Authors: Mochamad Ashari, W.l. Keerthipala, Chem V NayarAbstract:This paper presents the application of a single-phase parallel converter as an Uninterruptible Power Supply and demand side management system. The proposed system consists of a bi-directional inverter that is connected in parallel to the utility system. When the grid system fails, the converter will convert the Power from the battery to the AC side (utility side) at the mains voltage and frequency. On the other hand, when the utility is normal the converter will act as a demand side management system. It charges the battery during low load and shaves the transient load at the peak period system. This improves the pattern of the demand variation in the utility side. This paper presents the operational principle of the Uninterruptible Power Supply and demand side management system, laboratory, and simulation results.
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An improved in-line Uninterruptible Power Supply system
Ninth International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.00EX441), 2000Co-Authors: Mochamad Ashari, Chem V Nayar, S. IslamAbstract:This paper presents an improved in-line Uninterruptible Power Supply system, which has voltage sag compensation and Power factor improvement. The system employs a voltage-source voltage-controlled converter with battery storage. The converter voltage is synchronised to the grid voltage and a link inductor is inserted between the converter and the grid. The load is connected directly to the converter output voltage. The magnitude of the converter voltage is maintained constant through the sinusoidal PWM signal that provides stabilisation from any voltage sags and large fluctuation of the mains voltage. The Power factor correction is controlled through the Power flow of the system. The inverter is maintained to Supply the reactive Power to the load, therefore, the grid supplies the active Power. Results from simulation using PSCAD/EMTDC and laboratory tests are included.
Min Chen - One of the best experts on this subject based on the ideXlab platform.
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seamless transfer control strategy for fuel cell Uninterruptible Power Supply system
IEEE Transactions on Power Electronics, 2013Co-Authors: Wenping Zhang, Ren Xie, Dezhi Dong, Haijin Li, Dehong Xu, Chao Sun, Xiao Li, Min ChenAbstract:Due to the long cold start time and slow dynamics of proton exchange membrane (PEM) fuel cell (FC) stack, operating modes transfer control strategy for fuel cell Uninterruptible Power Supply (FC-UPS) is different from the traditional Uninterruptible Power Supply (UPS) system. In this paper, a seamless transfer control strategy, which is suitable for FC-UPS, is proposed. The Power conversion architecture of FC-UPS is presented with the characteristic analysis of PEMFC and the requirements of UPS. Then, the scheme of the seamless transfer control strategy is investigated. The proposed seamless transfer control strategy is not only capable of guaranteeing the Uninterruptible load voltage, but also protecting FC against the Power demands beyond its allowable bandwidth during the transition for long lifespan and safety. Finally, the control scheme has been verified on a 10-kW FC-UPS prototype.
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seamless transfer control strategy for fuel cell Uninterruptible Power Supply system
IEEE Transactions on Power Electronics, 2013Co-Authors: Wenping Zhang, Ren Xie, Dezhi Dong, Haijin Li, Dehong Xu, Chao Sun, Xiao Li, Min ChenAbstract:Due to the long cold start time and slow dynamics of proton exchange membrane (PEM) fuel cell (FC) stack, operating modes transfer control strategy for fuel cell Uninterruptible Power Supply (FC-UPS) is different from the traditional Uninterruptible Power Supply (UPS) system. In this paper, a seamless transfer control strategy, which is suitable for FC-UPS, is proposed. The Power conversion architecture of FC-UPS is presented with the characteristic analysis of PEMFC and the requirements of UPS. Then, the scheme of the seamless transfer control strategy is investigated. The proposed seamless transfer control strategy is not only capable of guaranteeing the Uninterruptible load voltage, but also protecting FC against the Power demands beyond its allowable bandwidth during the transition for long lifespan and safety. Finally, the control scheme has been verified on a 10-kW FC-UPS prototype.
Mochamad Ashari - One of the best experts on this subject based on the ideXlab platform.
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a single phase parallely connected Uninterruptible Power Supply demand side management system
IEEE Transactions on Energy Conversion, 2000Co-Authors: Mochamad Ashari, W.l. Keerthipala, Chem V NayarAbstract:This paper presents the application of a single-phase parallel converter as an Uninterruptible Power Supply and demand side management system. The proposed system consists of a bi-directional inverter that is connected in parallel to the utility system. When the grid system fails, the converter will convert the Power from the battery to the AC side (utility side) at the mains voltage and frequency. On the other hand, when the utility is normal the converter will act as a demand side management system. It charges the battery during low load and shaves the transient load at the peak period system. This improves the pattern of the demand variation in the utility side. This paper presents the operational principle of the Uninterruptible Power Supply and demand side management system, laboratory, and simulation results.
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A single phase parallely connected Uninterruptible Power Supply/demand side management system
IEEE Transactions on Energy Conversion, 2000Co-Authors: Mochamad Ashari, W.l. Keerthipala, Chem V NayarAbstract:This paper presents the application of a single-phase parallel converter as an Uninterruptible Power Supply and demand side management system. The proposed system consists of a bi-directional inverter that is connected in parallel to the utility system. When the grid system fails, the converter will convert the Power from the battery to the AC side (utility side) at the mains voltage and frequency. On the other hand, when the utility is normal the converter will act as a demand side management system. It charges the battery during low load and shaves the transient load at the peak period system. This improves the pattern of the demand variation in the utility side. This paper presents the operational principle of the Uninterruptible Power Supply and demand side management system, laboratory, and simulation results.
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An improved in-line Uninterruptible Power Supply system
Ninth International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.00EX441), 2000Co-Authors: Mochamad Ashari, Chem V Nayar, S. IslamAbstract:This paper presents an improved in-line Uninterruptible Power Supply system, which has voltage sag compensation and Power factor improvement. The system employs a voltage-source voltage-controlled converter with battery storage. The converter voltage is synchronised to the grid voltage and a link inductor is inserted between the converter and the grid. The load is connected directly to the converter output voltage. The magnitude of the converter voltage is maintained constant through the sinusoidal PWM signal that provides stabilisation from any voltage sags and large fluctuation of the mains voltage. The Power factor correction is controlled through the Power flow of the system. The inverter is maintained to Supply the reactive Power to the load, therefore, the grid supplies the active Power. Results from simulation using PSCAD/EMTDC and laboratory tests are included.
Wenping Zhang - One of the best experts on this subject based on the ideXlab platform.
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seamless transfer control strategy for fuel cell Uninterruptible Power Supply system
IEEE Transactions on Power Electronics, 2013Co-Authors: Wenping Zhang, Ren Xie, Dezhi Dong, Haijin Li, Dehong Xu, Chao Sun, Xiao Li, Min ChenAbstract:Due to the long cold start time and slow dynamics of proton exchange membrane (PEM) fuel cell (FC) stack, operating modes transfer control strategy for fuel cell Uninterruptible Power Supply (FC-UPS) is different from the traditional Uninterruptible Power Supply (UPS) system. In this paper, a seamless transfer control strategy, which is suitable for FC-UPS, is proposed. The Power conversion architecture of FC-UPS is presented with the characteristic analysis of PEMFC and the requirements of UPS. Then, the scheme of the seamless transfer control strategy is investigated. The proposed seamless transfer control strategy is not only capable of guaranteeing the Uninterruptible load voltage, but also protecting FC against the Power demands beyond its allowable bandwidth during the transition for long lifespan and safety. Finally, the control scheme has been verified on a 10-kW FC-UPS prototype.
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seamless transfer control strategy for fuel cell Uninterruptible Power Supply system
IEEE Transactions on Power Electronics, 2013Co-Authors: Wenping Zhang, Ren Xie, Dezhi Dong, Haijin Li, Dehong Xu, Chao Sun, Xiao Li, Min ChenAbstract:Due to the long cold start time and slow dynamics of proton exchange membrane (PEM) fuel cell (FC) stack, operating modes transfer control strategy for fuel cell Uninterruptible Power Supply (FC-UPS) is different from the traditional Uninterruptible Power Supply (UPS) system. In this paper, a seamless transfer control strategy, which is suitable for FC-UPS, is proposed. The Power conversion architecture of FC-UPS is presented with the characteristic analysis of PEMFC and the requirements of UPS. Then, the scheme of the seamless transfer control strategy is investigated. The proposed seamless transfer control strategy is not only capable of guaranteeing the Uninterruptible load voltage, but also protecting FC against the Power demands beyond its allowable bandwidth during the transition for long lifespan and safety. Finally, the control scheme has been verified on a 10-kW FC-UPS prototype.
W.l. Keerthipala - One of the best experts on this subject based on the ideXlab platform.
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a single phase parallely connected Uninterruptible Power Supply demand side management system
IEEE Transactions on Energy Conversion, 2000Co-Authors: Mochamad Ashari, W.l. Keerthipala, Chem V NayarAbstract:This paper presents the application of a single-phase parallel converter as an Uninterruptible Power Supply and demand side management system. The proposed system consists of a bi-directional inverter that is connected in parallel to the utility system. When the grid system fails, the converter will convert the Power from the battery to the AC side (utility side) at the mains voltage and frequency. On the other hand, when the utility is normal the converter will act as a demand side management system. It charges the battery during low load and shaves the transient load at the peak period system. This improves the pattern of the demand variation in the utility side. This paper presents the operational principle of the Uninterruptible Power Supply and demand side management system, laboratory, and simulation results.
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A single phase parallely connected Uninterruptible Power Supply/demand side management system
IEEE Transactions on Energy Conversion, 2000Co-Authors: Mochamad Ashari, W.l. Keerthipala, Chem V NayarAbstract:This paper presents the application of a single-phase parallel converter as an Uninterruptible Power Supply and demand side management system. The proposed system consists of a bi-directional inverter that is connected in parallel to the utility system. When the grid system fails, the converter will convert the Power from the battery to the AC side (utility side) at the mains voltage and frequency. On the other hand, when the utility is normal the converter will act as a demand side management system. It charges the battery during low load and shaves the transient load at the peak period system. This improves the pattern of the demand variation in the utility side. This paper presents the operational principle of the Uninterruptible Power Supply and demand side management system, laboratory, and simulation results.
