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Your search keyword '"Load characteristic"' showing total 2 results
Start Over Descriptor "Load characteristic" Topic electric current rectifiers
2 results on '"Load characteristic"'

1. COMPENSATED SINGLE-PHASE RECTIFIER.

Author

Rankis, Ivars, Donins, Janis, and Beniusis, Vytautas

Subjects
*PULSATION (Electronics), *ELECTRONICS, *ELECTRIC current rectifiers, *ELECTRIC potential, *DIRECT currents
Abstract

Paper describes methods of rectified DC pulsation reduction adding a compensation node to a single phase rectifier. Device is related to converters of electrical energy and it can be used in power electronics. Purpose of single phase compensated rectifier is to reduce load voltage pulsations. Several methods of compensation are observed, load characteristics are compared to a simple rectifier. Load voltage is compensated using compensation switch. It is operated so that rectifier output voltage pulsation is minimal. This current pulsation reduction effect is achieved so that the elevated voltage node is operating as an additional power source for load. Operation of compensation switch is controlled by comparing of two voltages, comparing reference voltage with voltage on load. While these voltages are equal or load voltage is greater than reference voltage, load voltage is not compensated. As soon as load voltage less than reference voltage, the compensation current is increased in proportion of difference of compared voltages. Load voltage compensation process goes on continuous. [ABSTRACT FROM AUTHOR]

Published
2011

2. Performance of Homopolar Inductor Alternator With Diode-Bridge Rectifier and Capacitive Load.

Author

Ren, Zhang'ao, Yu, Kexun, Xin, Qingming, and Pan, Yuan

Subjects
*ELECTRIC current rectifiers, *BRIDGE rectifiers, *ELECTRIC circuits, *BRIDGE circuits, *ALTERNATING current generators
Abstract

This paper presents the performance of homopolar inductor alternator (HIA) with diode-bridge rectifier and capacitive load. According to the conduction and commutation rules, all the operational modes included in the bridge rectified capacitive load are considered. A simplified average-value mathematical model is established; furthermore, we derive the load characteristic under every operation mode. Using the fundamental machine differential equations and the connecting characteristics between alternator and rectifier, we establish a port-network state model of the system. The performance of the HIA with bridge rectifier and capacitive load can be predicted from charging current, commutating angle, and given parameters of the alternator. Theoretical results are compared with the simulation results obtained from numerical procedure. [ABSTRACT FROM PUBLISHER]

Published
2013
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