摘要:
The present invention provides a simplified method of controlling power among the various sources and loads in a power system. Power generating sources are each connected to a common DC bus through a converter designed to optimize power flow to the DC bus. A DC storage device is connected to the common DC bus through a power regulator designed to maintain a constant voltage on the DC bus. Further, an inverter may be provided to convert the DC voltage to an AC voltage for a customer load or for connection to the utility grid. Each power conversion device is independently controlled to provide a modular and simplified power control system.
摘要:
The present invention provides a simplified method of controlling power among the various sources and loads in a power system. Power generating sources are each connected to a common DC bus through a converter designed to optimize power flow to the DC bus. A DC storage device is connected to the common DC bus through a power regulator designed to maintain a constant voltage on the DC bus. Further, an inverter may be provided to convert the DC voltage to an AC voltage for a customer load or for connection to the utility grid. Each power conversion device is independently controlled to provide a modular and simplified power control system.
摘要:
A two-piece spring push includes a main body portion and a cap. The cap is attached to the main body portion through frictional or interference fits of projections and openings in the two-piece spring push. The two-piece spring push allows for the use of the spring push on larger diameter optical cables as the spring push is assembled on the optical fibers after the optical fibers are terminated in an optical ferrule.
摘要:
A multi-fiber ferrule and optical fibers therein make easier contact with other multi-fiber ferrules and connectors with a small fiber tip radius and a modulus of elasticity. A method for qualifying multi-fiber ferrules (and connectors) is also disclosed.
摘要:
A multi-fiber ferrule and optical fibers therein make easier contact with other multi-fiber ferrules and connectors with a small fiber tip radius and a modulus of elasticity. A method for qualifying multi-fiber ferrules (and connectors) is also disclosed.
摘要:
A two-piece spring push includes a main body portion and a cap. The cap is attached to the main body portion through frictional or interference fits of projections and openings in the two-piece spring push. The two-piece spring push allows for the use of the spring push on larger diameter optical cables as the spring push is assembled on the optical fibers after the optical fibers are terminated in an optical ferrule.
摘要:
The present invention pertains to a natural product litter composition as well as methods of preparing and using a natural product litter as a sorbent for liquids. The sorbent contains 1% to 50% by weight wood particles and 50% to 99% by weight ground grain. The sorbency of a ground grain litter can be improved by pelletization and crumbling. Addition of up to 50% of wood particles to a ground grain litter further enhances the sorbency while maintaining suitable swelling and clumping characteristics.
摘要:
An apparatus for forming a large block of frozen liquid having vertically-disposed heat transfer tubes positioned within an open-bottom, walled mold, and elevator means to raise and lower a platform or a tray to seal with the mold as a bottom to receive and retain the liquid. Once frozen, the block is removed by lowering the platform or tray in a controlled manner.