DISTRIBUTED HOME POWER SUPPLY APPARATUS BY DC INTERCONNECTION, AND ITS CONTROL METHOD

• Main Authors: YOKOTA SHINJI, TOYODA ATSUO, ASANO TADANORI, NISHINO KAZUO
• Format: Patent
• Language: English
• Published: 22.07.2004
• Edition: 7
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

PROBLEM TO BE SOLVED: To make an isolated operation detecting apparatus unnecessary by a method wherein DC interconnection is formed by using the power grid and a semiconductor control rectifier device and inverse power flow is obstructed by the circuit constitution, and to control excess and deficiency of the power generation which are generated by the change of the load and the variations of power generation, by combining a DC main in consumer, a battery device, a water heater and the back up from the grid. SOLUTION: This distributed home power supply apparatus is provided with the control rectifier device 11 which converts the AC power from the power grid 1 to DC power and output it, a DC power generation installation 4 for supplying power to the DC main 12, a DC load 8 connected with the DC main 12, an AC load 6 which is connected with the DC main 12 through an inverter 16 which inverts DC power to AC power and outputs it, a battery 13 connected with the DC main 12, the water heater 15 supplied power through the control rectifier device 18 connected with the DC main 12, and a power regulating apparatus 14 for controlling the back up current from the power grid 1, output of the power generation installation 4, charge and discharge current of the battery 13 and the amount of current flow in the water heater 15. COPYRIGHT: (C)2004,JPO&NCIPI