US 2005/0029952 A1Published application

Drive system

AssigneeSiemens AG Osterreich

InventorsHarald Schweigert, Harald Weinmeier, Norbert Kaiser

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Abstract

The invention relates to a drive system with at least one main motor (HMO) and at least one actuator motor (SM1, SM2). Said drive system comprises a.d.c. intermediate circuit (ZWK), in which the main motor, during deceleration in the generator mode, feeds the intermediate circuit, a control unit (STE) for monitoring and controlling the operation and for initiating and carrying out an emergency operation in case of a power failure, and a control power supply (SBN). An emergency power supply (NNT) for generating an emergency supply voltage (UB) is connected to the intermediate circuit (ZWK). The level of said emergency supply voltage is lower than that of the rated operational voltage (UB) of the control unit (STE). The outputs of the control power supply (SBN) and of the emergency power supply are applied together to the supply voltage input of the control unit. An output voltage control of the emergency power supply is adjusted to the emergency supply voltage (UB′).

Claims5

Dependent claims

A drive system comprising:

at least one main motor (HMO)and at least one actuator motor (SM1, SM2),
a d.c. intermediate circuit (ZWK) that connects to an a.c. system (DSN) via a mains rectifier (GLR), it being possible for the intermediate circuit to supply power to the at least one actuator motor and the at least one main motor during motor operation,
a control unit (STE) for monitoring and controlling the operation of the system and for initiating and carrying out an emergency operation in the event of a power failure, and
a control power supply (SBN) for generating a normal d.c. voltage (UB) for the control unit from an a.c. mains voltage, the control unit obtaining its operating voltage from the intermediate circuit via an additional power supply,
wherein
an emergency power supply (NNT) for generating an emergency supply voltage (UB′) is connected to the intermediate circuit (ZWK), the level of the emergency supply voltage being lower than that of the rated operational voltage (UB) of the control unit (STE), the outputs of the control power supply (SBN) and of the emergency power supply being applied together to the supply voltage input of the control unit, and an output voltage regulator of the emergency power supply being adjusted to the emergency supply voltage (UB′).

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/922,611Filed 20 Aug 2004
Priority: AT A 275/200222 Feb 2002
Published: 10 Feb 2005
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

H02P 3/08
For stopping or slowing an individual dynamo-electric motor or dynamo-electric converter: for stopping or slowing a DC motor
H02P 3/18
For stopping or slowing an individual dynamo-electric motor or dynamo-electric converter: for stopping or slowing an AC motor
H02P 5/74
Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors: controlling two or more AC…
H02P
Control or regulation of electric motors, electric generators or dynamo-electric converters

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