Leakage current reduction in combined motor drive and energy storage recharge system

A charging system and method that accommodates and reduces potential residual or leakage current when electrical grounds of a charger and an energy storage system are equalized at the moment of initiating charging. The charging system using an alternating current (AC) line voltage for conductive cha...

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Bibliographische Detailangaben
Hauptverfasser:	KALAYJIAN NICK, KRAUER JEAN-PIERRE
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION INSTRUMENTATION OR DASHBOARDS FOR VEHICLES MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A charging system and method that accommodates and reduces potential residual or leakage current when electrical grounds of a charger and an energy storage system are equalized at the moment of initiating charging. The charging system using an alternating current (AC) line voltage for conductive charging of an energy storage system (ESS) coupled to a polyphase motor drive circuit communicated to a polyphase motor, and converting the line voltage to a charging voltage communicated to the energy storage system using a set of the plurality of driver stages.