Development and testing of an advanced inverter system for a 10 kW grid-intertied wind system
- Bergey Windpower Co., Norman, OK (United States)
This paper reviews the design, development, and testing of a 15 kWp power conditioning unit designed to interface a 10 kW variable speed wind turbine to the utility grid and provide options for enhanced power system services. The Bergey Powersync II inverter system has been developed in three versions: Basic, Uninterruptible Power Supply (UPS), and Wind/Diesel. The Basic version is an entry-level configuration that provides high reliability and power quality, but lacks any stand-alone capability. The UPS version incorporated a battery bank and is capable of additionally serving as both a back-up power supply during utility outages and a dispatchable 15 kW/50 kWh peak-shaver. The Wind/Diesel version can be used in off-grid wind power applications to minimize diesel fuel consumption and diesel run time. The Powersync II is a high-frequency link IGBT-type power processing unit. It incorporates a boost input stage to accommodate a wide voltage window from the wind turbine, an isolation transformer, and a PWM output stage to provide low harmonics and a controllable power factor. The unit is designed to a high reliability level target (MTBF of 100,000 hours) and for the severe surge environment of distributed generation applications. Field testing of prototype units is being conducted at the National Renewable Energy Laboratory (NREL), Bergey Windpower, and several other locations. This work is supported by the US-DOE through NREL.
- OSTI ID:
- 93019
- Report Number(s):
- CONF-950116-; ISBN 0-7918-1294-4; TRN: IM9537%%62
- Resource Relation:
- Conference: 1995 American Society of Mechanical Engineers (ASME) energy sources technology conference and exhibition, Houston, TX (United States), 29 Jan - 1 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of Wind energy 1995. SED-Volume 16; Musial, W.D.; Hock, S.M. [eds.] [National Renewable Energy Lab, Golden, CO (United States)]; Berg, D.E. [ed.] [Sandia National Labs., Albuquerque, NM (United States)]; PB: 298 p.
- Country of Publication:
- United States
- Language:
- English
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