Power quality describes the quality of voltage and current a facility has, and is one of the most important considerations in industrial and commercial applications today. It is essential that processes, in particular, in industrial plants, operate uninterrupted where high productivity levels are an important factor.
The Automatic Voltage Regulator (AVR) is widely used in electrical power field to obtain the stability and good regulation of the electric system. In this paper, a novel ac automatic voltage regulator (AVR) is proposed. This AVR is configured by an input inductor, an output filter, a small-capacitance dc capacitor. This power converter acts as an ac boost converter when the utility voltage is lower than the specified voltage. On the contrary, this power converter acts as an ac buck converter when the utility voltage is higher than the specified voltage. Hence, the output voltage of the AVR can be maintained at the specified voltage. The salient feature of this AVR is that the power electronic switches are switched in high frequency therefore the switching loss of this AVR can be reduced and the capacitance of the dc capacitor is very small. Hence, the size and cost can be reduced, while the reliability and power efficiency can be increased. A prototype is developed and tested to verify the performance of the proposed AVR.
The VRP incorporates unique AC-chopper technology for very high efficiency and feature complete line conditioning. Its inverter imposes an ultra-fast PWM correction voltage on the primary winding of a buck-boost transformer. VRP automatic voltage regulators feature complete line conditioning. The VRP has an input voltage range of 184 to 287 V for a nominal 230 V, 50/60 Hz with output regulated to +-3%. The extended input voltage range is 160 to 330 V with reduced regulation; 120 V versions are available.
TSi Power automatic voltage regulator options include:
• Indoor and outdoor versions
• Available in sizes up to 50 kVA for both indoor and outdoor models
TSi Power’s Rack/Floor/Wall Mounting kits enable our Indoor XUPS, VRP, ATS and ARM series to be placed virtually anywhere that fits your space considerations, including on the desktop or on the floor. For rack mount configurations, the VRP is designed to accommodate most standard component rack enclosures. With a simple rack mount kit option, you can place your UPS, automatic voltage regulator or automatic transfer switch in a 19”, 23” and 24” rack to better facilitate the space requirements of your systems.