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http://dx.doi.org/10.12673/jant.2018.22.5.420

Characteristic of VSI Driven by Source Synchronous Type for the Utility Interactive using a Photovoltaic Generation for the LED Luminaire Emergency Exit Sign Operation  

Hwang, Lark-Hoon (Department of Electrical Engineering, Semyung University)
Na, Yong-Ju (Department of Electrical Engineering, Semyung University)
Publication Information
Journal of Advanced Navigation Technology / v.22, no.5, 2018 , pp. 420-428 More about this Journal
Abstract
In this paper, represented uninterruptible power supply (UPS) equipment maintaining constant output voltage, the proposes a photovoltaic system constructed with a step up boosting chopper and single phase pulse width modulation (PWM) voltage source inverter. as power source disconnection, voltage variation and output current variation with load variation. This system is driven by being synchronized voltage fed inverter and AC source, and in the steady state of power source charge battery connected to DC side with solar cell using a Photovoltaic that it was so called constant voltage charge. It can be results of saving electric power, and through a normal operation of energy storage system (ESS), the system operated the LED a calling on signal changes at the airport in an efficient manner. In addition, better output waveform was generated because of PWM method, and it was proved to test by experiment maintained constant output voltage regardless of AC source disconnection, load variation, and voltage variation of AC power source.
Keywords
Calling on signal changes; Energy Storage System; Uninterruptible power supply; Utility power system;
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