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ELECTRIC POWER SUPPLY SYSTEM

  • US 20120206104A1
  • Filed: 02/14/2012
  • Published: 08/16/2012
  • Est. Priority Date: 02/15/2011
  • Status: Active Grant
First Claim
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1. An electric power supply system comprising:

  • an alternating-current power line wired in a building and connected to an electric load for supplying alternating-current electricity to the electric load;

    a bidirectional power converter configured to convert bilaterally between alternating-current electricity and direct-current electricity;

    a power storage unit connected to the alternating-current power line through the bidirectional power converter and configured tobe charged with electricity from the alternating-current power line anddischarge direct-current electricity stored in the power storage unit into the alternating-current power line;

    a charge-and-discharge unit equipped with a connecting terminal portion connectable with a vehicle and configured tocharge a vehicular power accumulating device equipped in the vehicle with alternating-current electricity supplied from the alternating-current power line through the connecting terminal portion to the vehicle anddischarge electricity of the vehicular power accumulating device outputted as alternating-current electricity from the vehicle to the connecting terminal portion, whereinthe charge-and-discharge unit includes a power converter configured toconvert alternating-current electricity outputted from the vehicle through the connecting terminal portion into direct-current electricity anddischarge direct-current electricity converted with the power converter through the bidirectional power converter into the alternating-current power line.

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