7 results about "Uninterruptible power supply" patented technology

The invention is to provide an uninterruptible power supply that is able to response to diverse output specifications of DC power source units while avoiding increase of numbers of models. DC power source units 30-1 and 30-2 are placed in a container different from other container that contains an AC power source unit 20 and the AC power source unit and the DC power source unit are detachable. Further, the DC power source units 30-1 and 30-2 is provided with a setting unit that sets a condition for starting power supply in response to outside operation.

The invention belongs to the technical field of emergency water supply, and particularly relates to a cooling-water emergency water complementing system. The cooling-water emergency water complementing system comprises a constant-pressure variable-frequency water pump control cabinet, a main water supply cooling system, an uninterruptible power supply, a controller, a first electric valve, a second electric valve, a tap water supply device and an emergency water pool, wherein the main water supply cooling system is connected with the tap water supply device by the first electric valve and is connected with the emergency water pool by the second electric valve; the controller is respectively connected with the uninterruptible power supply, the first electric valve and the second electric valve, and the controller is configured to control the first electric valve and the second electric valve to be turned on or turned off according to a signal of the uninterruptible power supply. The cooling-water emergency water complementing system has the beneficial effects that the integral system implements automatic water complementation, an original mode of carrying out water complementation by manually opening a water tap valve is changed, and the risk caused by not timely complementing water is reduced; an emergency water source is from the emergency water pool and the tap water supply device so as to avoid a problem of not timely complementing water, which is caused by the single water source or sudden cut-off tap water supply.

The invention relates to a power supply protection system and a magnetic levitation blower. The system comprises a power supply conversion module of which the input end is used for connecting an external input power supply; an uninterruptible power supply of which the input end is connected with the output end of the power conversion module; a seamless power supply converter of which the first input end is connected with the output end of the uninterruptible power supply, the second input end is connected with the output end of the power supply conversion module and the detection end is used for connecting a controller; and a first DC stabilized power supply of which the input end is connected with the output end of the seamless power supply converter and the output end is used for connecting the magnetic levitation system for maintaining the suspension of the motor spindle. The system can generate a warning effect in time when the uninterruptible power supply fails and can seamlesslyswitch the power supply so as to enhance the power supply protection mechanism of the power supply and improve the power supply reliability.

The invention discloses a mobile electrochemical energy storage group station non-power-off system and a control method. The system comprises an energy storage power supply vehicle group and a diesel generator car, the control method adopts energy storage system grouping periodical seamless switching charging and discharging, adopts a non-charging energy storage group peak regulation optimization charging process, and randomly optimizes an energy scheduling strategy according to different states of a diesel generator set. The method has the advantages that a maneuvering group station uninterruptible power supply system is provided for an area far away from an energy pipe network; sound smoke control can intervene in sudden stop of the charging unit at any time, and unit station power supply is uninterrupted; the operation time of the diesel generator set is minimized through optimization control; the energy storage module vehicles can be alternately used after leaving the station; all the power supply vehicles take electricity universally in a fully distributed manner; modularized rapid station assembling is flexible and flexible. All electrified energy is output, an energy pipe network can be simplified, and maneuverability is improved; after the control method is changed, the method can be used in common scenes with a power grid, a diesel generator set mainly used and a diesel generator car independently used, and asset efficiency is improved.

According to at least one aspect of the present disclosure, a method of operating a, Uninterruptible Power Supply (UPS) is provided. The method includes receiving, in a first mode of operation, AC power at an input of the UPS, providing, in the first mode, the AC power to a charger and a clamp-charger circuit, charging, by the charger in the first mode, a UPS battery of the UPS with a first charging current derived from at least a portion of the AC power, charging, by the clamp-charger circuit in the first mode, the UPS battery with a second charging current derived from at least a portion of the AC power, providing, in a second mode of operation, output power at an output of the UPS derived from the UPS battery, and charging, by the clamp-charger circuit in the second mode, the UPS battery using a third charging current.