SYSTEM POWER LEVELING DEVICE AND IMAGE DIAGNOSTIC SYSTEM
First Claim
1. A system power leveling device comprising:
- a bidirectional converter connected to a system bus line providing a electric power to a load from a power source, the bidirectional converter comprising a first switching element and a second switching element;
a power storage device connected to the bidirectional converter;
a first specifying section configured to specify a power consumption of the load;
a charge-discharge control section configured to control charging and discharging of the power storage device by controlling the bidirectional converter based on the specified power consumption; and
a second specifying section configured to specify one of a current and an electric power of the charge or the discharge, wherein the charge-discharge control section comprises a first on/off control section configured to;
deactivate a first of the first switching element and the second switching element when the power storage device is charging or discharging;
one of activate and deactivate a second of the first switching element and the second element until a difference between a target value of the current or the electric power of the charge or the discharge and the specified value by the second specifying section becomes smaller than a first threshold; and
perform a first feed-back control such that the specified value approaches the target value, by using a pulse width modulation for a on/off operation of the second of the first switching element and the second switching element.
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Accused Products
Abstract
A system power leveling device includes a bidirectional converter connected to a system bus line providing a electric power to a load from a power source and having a first and a second switching element, a power storage device connected to the bidirectional converter, a first specifying section for specifying a power consumption of the load, a charge-discharge control section for controlling the charge and the discharge of the power storage device by controlling the bidirectional converter based on the power consumption specified at the first specifying section, and a second specifying section specifying a current or an electric power of the charge or the discharge.
15 Citations
20 Claims
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1. A system power leveling device comprising:
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a bidirectional converter connected to a system bus line providing a electric power to a load from a power source, the bidirectional converter comprising a first switching element and a second switching element; a power storage device connected to the bidirectional converter; a first specifying section configured to specify a power consumption of the load; a charge-discharge control section configured to control charging and discharging of the power storage device by controlling the bidirectional converter based on the specified power consumption; and a second specifying section configured to specify one of a current and an electric power of the charge or the discharge, wherein the charge-discharge control section comprises a first on/off control section configured to; deactivate a first of the first switching element and the second switching element when the power storage device is charging or discharging; one of activate and deactivate a second of the first switching element and the second element until a difference between a target value of the current or the electric power of the charge or the discharge and the specified value by the second specifying section becomes smaller than a first threshold; and perform a first feed-back control such that the specified value approaches the target value, by using a pulse width modulation for a on/off operation of the second of the first switching element and the second switching element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An image diagnostic system comprising:
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a load; and a system power leveling device comprising; a bidirectional converter connected to a system bus line providing a electric power to the load from a power source, the bidirectional converter comprising a first switching element and a second switching element; a power storage device connected to the bidirectional converter; a first specifying section configured to specify a power consumption of the load; a charge-discharge control section configured to control charging and discharging of the power storage device by controlling the bidirectional converter based on the specified power consumption; and a second specifying section configured to specify one of a current and an electric power of the charge or the discharge, wherein the charge-discharge control section comprises a first on/off control section configured to; deactivate a first of the first switching element and the second switching element when the power storage device is charging or discharging; one of activate and deactivate a second of the first switching element and the second element until a difference between a target value of the current or the electric power of the charge or the discharge and the specified value by the second specifying section becomes smaller than a first threshold; and perform a first feed-back control such that the specified value approaches the target value, by using a pulse width modulation for a on/off operation of the second of the first switching element and the second switching element. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification