VOLTAGE CONVERSION CONTROL DEVICE

PROBLEM TO BE SOLVED: To implement a high response output current of a power storage device.SOLUTION: A voltage conversion control device (60) for controlling a voltage converter (10) having a high side switching element (Q1) and a low side switching element (Q2) includes: calculation means (614, 61...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAKAWA JUNJI, OKAMURA SAKAKI, TAKAMATSU NAOYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To implement a high response output current of a power storage device.SOLUTION: A voltage conversion control device (60) for controlling a voltage converter (10) having a high side switching element (Q1) and a low side switching element (Q2) includes: calculation means (614, 615) for calculating a duty ratio (D) such that an output current (IL) of a power storage device becomes a desired value (IL*) and that the duty ratio is within a predetermined allowable range; limit relaxation means (616) for relaxing at least either of an upper limit value and a lower limit value of the allowable range on the basis of a magnitude relationship between a current deviation resulting from the subtraction of the output current from the desired value and a predetermined threshold; and control means (618) for controlling the high side switching element and the low side switching element so as to perform switching control depending on the duty ratio calculated by the calculation means.