Flywheel uninterruptible power source

A flywheel uninterruptible power source comprised of an energy storage flywheel supported for rotation on a bearing system and accelerated and decelerated using a brushless motor/generator for storing and retrieving energy,

• said flywheel uninterruptible power source prevents interruption of power to an electrical load during an interruption of primary power by supplying power generated from the flywheel generator,
• said flywheel is accelerated to normal operating speed using power from an alternating current primary source,
• said power from said primary source is rectified to direct current power which is supplied to an synchronous inverter that accelerates the motor,
• said direct current power supplied to the inverter is regulated by using switching regulation at a frequency below 200 Hz for controlling the acceleration of the flywheel.

A flywheel uninterruptible power source comprised of an energy storage flywheel supported for rotation on a bearing system and accelerated and decelerated using a brushless motor/generator for storing and retrieving energy,

• said flywheel uninterruptible power source prevents interruption of power to an electrical load during an interruption of primary power by supplying power generated from the flywheel generator,
• said flywheel is accelerated to normal operating speed using power from an alternating current primary source,
• said power from said primary source is rectified to direct current power which is supplied to an synchronous inverter that accelerates the motor,
• said direct current power is increased to a level 1.5 or more times greater than the voltage of said alternating current primary source.

A flywheel uninterruptible power source comprised of an energy storage flywheel supported for rotation on a bearing system and accelerated and decelerated using a brushless motor/generator for storing and retrieving energy,

• said flywheel uninterruptible power source prevents interruption of power to an electrical load during an interruption of primary power by supplying power generated from the flywheel generator,
• said flywheel is accelerated to normal operating speed using power from an alternating current primary source,
• said power from said primary source is rectified to direct current power which is supplied to a motor drive circuit that accelerates the motor,
• said direct current power supplied to the motor drive circuit is regulated by using switching regulation of the alternating current from the primary source for controlling the acceleration of the flywheel.