POWER SUPPLY FACILITY, POWER SUPPLY SYSTEM, POWER SUPPLY FACILITY SYSTEM, AND POWER SYSTEM

摘要

PROBLEM TO BE SOLVED: To sustain balanced supply-demand state in a power supply system even for variation in natural energy or for abrupt variation in load by suppressing variation width in the power supply system.;SOLUTION: The power supply facility 8 for supplying power to a power system 9 comprises a power generation facility 1 utilizing natural energy such as wind force, sunlight, and the like, and involving output variation, and a power generation facility 2 provided in parallel with the power generation facility 1 and operating as the base power supply such as a diesel engine, a gas engine, or hydraulic power wherein the power generation facility 2 is constituted of a double power supply synchronous machine having a variable frequency exciting power supply, i. e. a variable frequency converter 5. Power is absorbed or reprenished by the power generation facility 2 depending on the variation by excitation control utilizing inertial energy of a motor 3 and a generator 4 for short period variation and by motor control for relatively slow variation thus equalizing power supply to the power system 9.;COPYRIGHT: (C)2007,JPO&INPIT