Development of dc interrupters for the BEST Facility

Technical Report · Fri Sep 01 04:00:00 EDT 1978

DOI:https://doi.org/10.2172/5671853· OSTI ID:5671853

Technology for providing rapid and repeated interruptions of dc fault current in high power dc-ac conversion systems using line commutated current fed inverters is developed and verified. Requirements for coordinated back-up protection are analyzed. Particular emphasis is on implementing the technology on a scale sufficient to meet the needs of the National Battery Energy Storage Test (BEST) Facility and to gain an understanding of the capabilities and limitations of high speed fuses in the context of the application considered. The program achieved: (1) analysis and simulation of possible interrupter concepts; (2) small scale hardware modeling of an interrupter/inverter system complete with ac and dc interfaces; and (3) construction and test of a full scale interrupter. The model system consisted of two 6 pulse bridges with interrupters of the ringing bypass type, rated at 20 kW total with dc bus voltages of 500 maximum for series inverter operation and 250 maximum for parallel operation. The ac interface, with the inverters always operating at ..pi../6 radians displacement to give 12 pulse system operation, was with a 440 V, 3-phase, 60 Hz supply appropriately scaled for source impedance.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (USA). Research and Development Center
• DOE Contract Number: EX-76-C-01-2117
• OSTI ID: 5671853
• Report Number(s): DOE/TIC-11083
• Country of Publication: United States
• Language: English

Related Subjects

200302* -- Power Transmission & Distribution-- DC Systems-- (1989-)
24 POWER TRANSMISSION AND DISTRIBUTION
COMPUTERIZED SIMULATION
CONTROL EQUIPMENT
DC SYSTEMS
DEMONSTRATION PROGRAMS
DESIGN
ELECTRIC BATTERIES
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
ELECTROCHEMICAL CELLS
ENERGY STORAGE
ENERGY STORAGE SYSTEMS
EQUIPMENT
INVERTERS
PERFORMANCE TESTING
POWER SYSTEMS
SAFETY
SIMULATION
STORAGE
SWITCHES
TESTING