Storage battery equipment
First Claim
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1. A storage battery equipment for supplying electric power stored in a plurality of storage batteries to a building, comprising:
- a plurality of converters that extract direct current power from the storage batteries, convert a voltage of the direct current power, and output the direct current power;
an inverter that converts the direct current power outputted from the converters into an alternating current power, and supplies the alternating current power to the building; and
a controller that includes;
a high level controller that controls the inverter such that an amount of power outputted from the inverter to the building matches a preset target discharge amount, anda plurality of low level controllers that control operation of the converters, the low level controllers corresponding to respective ones of the storage batteries, whereinthe low level controllers are configured to control the converters by managing a directionality of power passing through the converters, without controlling a value of power passing through the converters to match a particular target value,one of the lower level controllers is a master controller, andonly the master controller among the lower level controllers is configured to communicate with the high level controller.
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Abstract
A storage battery equipment includes a converter, a system interconnection inverter, and a controller. The converter extracts direct current power from a storage battery, then converts a voltage of the direct current power and outputs the direct current power. The system interconnection inverter converts the direct current power outputted from the converter into an alternating current power. The controller controls the system interconnection inverter such that an amount of power output from the system interconnection inverter to a load matches a preset target discharge amount.
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5 Claims
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1. A storage battery equipment for supplying electric power stored in a plurality of storage batteries to a building, comprising:
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a plurality of converters that extract direct current power from the storage batteries, convert a voltage of the direct current power, and output the direct current power; an inverter that converts the direct current power outputted from the converters into an alternating current power, and supplies the alternating current power to the building; and a controller that includes; a high level controller that controls the inverter such that an amount of power outputted from the inverter to the building matches a preset target discharge amount, and a plurality of low level controllers that control operation of the converters, the low level controllers corresponding to respective ones of the storage batteries, wherein the low level controllers are configured to control the converters by managing a directionality of power passing through the converters, without controlling a value of power passing through the converters to match a particular target value, one of the lower level controllers is a master controller, and only the master controller among the lower level controllers is configured to communicate with the high level controller. - View Dependent Claims (2, 3, 4, 5)
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Specification