SatCon Power Systems Intros STARSINE UPS

SatCon Power Systems (Anaheim, CA) announced its STARSINE advanced rotary UPS that provides up to 12 seconds of battery-less ride-through for power line disturbances and short-term outages. Models are offered with ratings from 315kVA to 2.2MVA with a nominal input voltage of 480Vac or 4,160Vac.

The STARSINE rotary UPS adapts commercial components with an advanced electronic power controller. The system is comprised of an induction motor/generator (IMG) operating in conjunction with a surge-limiting line reactor, electronics control package, low-speed flywheel and connecting clutch to the generator when long-term standby power is required. The system is also equipped with the necessary switchgear for connection to the utility feeder.

Under normal conditions, the STARSINE rotary UPS operates with efficiency exceeding 96 percent. The heart of the system is the IMG and associated frequency injected exciter (FIE) electronic power controller. In normal operation, the FIE operates the IMG as a motor to control the speed of the flywheel to a nominal 1,800rpm. The FIE adjusts the operational characteristics of the IMG to improve the quality of the power supplied from the grid by compensating for voltage deviations and sub-cycle power anomalies. This is accomplished by injecting a synthesized current into the rotor and using the impedance of the line reactor to isolate grid disturbances.

Pricing is dependent on the specified power level and system configuration. The rotary UPS will be available in early 2002 with delivery subject to unit configuration and facility installation.