Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
  • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
  • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
  • H02J1/10—Parallel operation of dc sources

Definitions

• the present invention relates to an uninterrupted power conversion system, which permanently supplies electric power to electrical and/or electronic equipment, being of special, but not exclusive, application in a telecommunications system.
• the power supply system is capable of receiving power from any source and establishing a conversion path to produce at its output a voltage and current suitable for the equipment which it is feeding.
• the electric power distribution system receives electric power from an alternating current mains and transforms it for supplying a set of electrical means and some energy storage means.
• the distribution system comprises rectifier means, the outputs of which are connected to electric means that receive a rectified sinusoidal voltage.
• the conversion of this rectified voltage into a direct voltage suitable for a set of loads is performed in a set of converter means.
• the power distribution system complies as a whole with the international standards referring to the harmonics content of the current supplied by the alternating current mains since each converter means individually compels the current that it receives to follow the waveform of the rectified voltage.
• an uninterrupted power supply system which is of an appropriate size and has suitable electrical operating characteristics for mounting together with telecommunications equipment.
• the uninterrupted power supply system of the invention receives electric power from an electric power supply through some input terminals, and supplies a voltage and current level to a voltage distribution busbar to which a set of loads is connected.
• the power supply system comprises first adapter means connected in parallel with rectifier means, which in turn are connected between the input terminals and some first output terminals, so that the power demanded by said loads flows permanently through the first adapter means.
• the first adapter means compel the current supplied by the electric power supply to follow the waveform of the voltage supplied, also by the same electric power supply.
• the uninterrupted power supply system achieves a high overall efficiency and a power factor close to unity, is economical and compact in size.
• FIG. 1 shows a block diagram of an uninterrupted power conversion system and its connection to an alternating current (AC) mains and to a load, according to the invention
• FIG. 2 shows a block diagram of a second implementation of the uninterrupted power conversion system according to the invention.
• Figure 1 shows a block diagram of a preferred implementation of the uninterrupted power conversion system of the invention, which is connected through some input terminals 1 1-1 and 1 1-2, respectively, to an electric power supply such as an alternating current (AC) mains, and through some first output terminals 12-1 and 12-2 supplies a voltage and current suitable for a predetermined number of loads 17-1 to 17-n, such as a telecommunications equipment.
• an electric power supply such as an alternating current (AC) mains
• first output terminals 12-1 and 12-2 supplies a voltage and current suitable for a predetermined number of loads 17-1 to 17-n, such as a telecommunications equipment.
• the uninterrupted power conversion system comprises first adapter means 13 whose input terminals are respectively connected to the input terminals 11 -1 and 1 1-2, and its output terminals are respectively connected to the first output terminals 12-1 and 12-2, which in turn are connected to a voltage distribution busbar 14 to which the loads 17-1 to 17-n are connected.
• Rectifier means 15 are connected in parallel with the first adapter means 13.
• Charger means 16 though some input terminals are connected to the input terminals 1 1 -1 and 1 1 -2, and are connected through second output terminals 16-2 and 16-3 to an energy storage facility 16-1.
• the second output terminals 16-2 and 16-3 are respectively connected by cable to the first output terminals 12-1 and 12-2.
• a switching element 16-4 is installed on one of the cables which forms the electrical connection between the second output terminals 16-2 and 16-3 and the first output terminals 12-1 and 12-2.
• the first adapter means 13 have the function of carrying out power factor correction so that the waveform of the input current follows the sinusoidal waveform of the voltage supplied, also, by the AC power supply through input terminals 1 1 -1 and 1 1 -2.
• the first adapter means 13 produce across the output terminals 12-1 and 12-2 an adequate, regulated voltage for the requirements of loads 17-1 to 17-n.
• the first adapter means 13 include a switched boost power converter, which is not described since it is well known in the state of the art.
• the boost power converter 13 performs the process of transforming the AC power into direct current (DC).
• the uninterrupted power conversion system also comprises a second conversion path with capacity for storing energy and supplying it to the loads 17-1 to 17-n, in the event of loss of the AC power supply.
• the AC power supply feeds AC power to the charger means 16 that adapt it for storing in the energy storage battery 16-1 , such as a battery.
• the charger means 16 are known in the state of the art, for which reason they are not described herein.
• Figure 2 shows a block diagram of another preferred implementation.
• the energy stored in the battery 16-1 before being fed to the loads 17-1 to 17-n, is stepped up by means of second adapter means 16-5, such as a switched boost power converter.
• the battery 16-1 is connected to the loads 17-1 to
• the AC power supplied by the AC power supply flows entirely though the rectifier means 15, such as a full-wave rectifier bridge, which rectify it, and supply a rectified voltage to the loads

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Stand-By Power Supply Arrangements (AREA)
• Charge And Discharge Circuits For Batteries Or The Like (AREA)
• Control Of Voltage And Current In General (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=8309186

Family Applications (1)

Country Status (4)

Families Citing this family (1)

Citations (2)

Family Cites Families (1)

• 2000
  • 2000-06-22 CA CA002379044A patent/CA2379044A1/en not_active Abandoned
  • 2000-06-22 EP EP00943988A patent/EP1201016A1/de not_active Withdrawn
  • 2000-06-22 JP JP2001509135A patent/JP2003504999A/ja not_active Withdrawn
  • 2000-06-22 WO PCT/EP2000/006258 patent/WO2001005012A1/en not_active Application Discontinuation

Patent Citations (2)

Non-Patent Citations (1)

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