PDF Publication Title:
Text from PDF Page: 010
Behavior of Capstone and Honeywell Microturbine Generators During Load Changes 2. Description of the Microturbine Tests 2.1 Test Site Description The testing was conducted at the Southern California Edison (SCE)/ University of California, Irvine (UCI) Test Facility. This outdoor site has four test bays with instrumentation for gas use and basic electrical monitoring. The site has a 100-psig natural gas supply (on-site gas compressor) and the ability to blend gas for lower Btu levels. In addition, heat dissipation facilities are available for testing of combined heat and power applications. The test facility is connected to the power grid through a 480-VAC, three-phase, four-wire breaker rated at 400 amps. Because of this fairly stiff connection, voltage variations caused by the MTGs connected to the utility system are small or undetectable. The site is operated by two experienced part-time staff members who supervise routine testing and maintenance. Additional test equipment is available for special situations. 2.2 MTG Descriptions The two MTGs that were tested are each composed of a high-speed microturbine with a permanent-magnet generator attached to the same shaft. The turbine uses a recuperator to help improve efficiency. Power is produced by the generator as high-frequency alternating current (AC). This variable-frequency AC is transformed to direct current (DC) and then converted to utility-grade AC by an inverter. 2.2.1 The Capstone Micro Turbine The Capstone Micro Turbine Generator, Model 330, is composed of the following subassemblies: a fuel system; a turbogenerator; and a Digital Power Controller (DPC). It operates on high-pressure natural gas or low-pressure gas with optional gas compressor. The fuel control system for the high-pressure unit is based on a Smart Proportional Value (SPV). Fuel flow is controlled by the position of the SPV. Fuel flow for the low-pressure unit is controlled by a variable-speed gas compressor. The turbogenerator includes a compressor, recuperator, combustor, turbine, and generator. The rotating components are mounted on a single shaft supported by air bearings. The generator is cooled by the air flow into the microturbine. The output of the generator is variable-voltage, variable-frequency AC power. The shaft rotates at up to 96,000 RPM. During the microturbine’s start up, the generator is used as the starter motor. The DPC controls the microturbine operation and all power conversion functions. The DPC converts the variable-frequency power from the generator into grid-quality power (as defined by IEE 519) at 400-480 Volts, three-phase AC, 50/60 Hz). The variable-frequency power from the rotating generator is converted to constant-voltage DC that is then inverted to constant-frequency AC. During microturbine start up, the DPC operates as a variable-frequency drive supplying power to the turbine until sufficient power is available from the generator. Grid power is used to rotate the turbine during start-up and cool down. If the grid voltage and/or frequency fall outside a preset range, the turbine shuts down automatically. 3PDF Image | Behavior of Capstone and Honeywell Microturbine Generators During Load Changes Consultant Report
PDF Search Title:
Behavior of Capstone and Honeywell Microturbine Generators During Load Changes Consultant ReportOriginal File Name Searched:
2004-05-24_500-04-021.pdfDIY PDF Search: Google It | Yahoo | Bing
Capstone Turbine and Microturbine: Capstone microturbines used and new surplus for sale listing More Info
Consulting and Strategy Services: Need help with Capstone Turbine, sizing systems, applications, or renewable energy strategy, we are here to assist More Info
Container Lumber Dry Kiln: Since 1991 developing and innovating dry kilns using standard shipping containers More Info
Supercritical CO2 Lumber Dry Kiln: Compact fast drying in 3 days or less for small amounts of wood and lumber drying More Info
BitCoin Mining: Bitcoin Mining and Cryptocurrency... More Info
Publications: Capstone Turbine publications for microturbine and distributed energy More Info
FileMaker Software for Renewable Energy Developing database software for the renewable energy industry More Info
CO2 Gas to Liquids On-Demand Production Cart Developing a supercritical CO2 to alcohol on-demand production system (via Nafion reverse fuel cell) More Info
Stranded Gas for low cost power Bitcoin Mining Using stranded gas for generators may provide breakthrough low power costs for cryptocurrency miners. More Info
CONTACT TEL: 608-238-6001 Email: greg@globalmicroturbine.com (Standard Web Page)