# US 2014/0152210 A1 · Arrangement and method for a vehicle inverter drive

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- Number: US 2014/0152210 A1
- Document ID: US20140152210A1
- Status: Published application
- Kind: A1
- Application number: 14/079,126
- Filed: 2013-11-13
- Published: 2014-06-05
- Earliest claimed: 2012-11-14
- Assignees: ABB AB
- Applicants: ABB Oy
- Inventors: Markku TALJA; Pertti SEVÄKIVI
- Web page: https://patentgrep.com/patent/US20140152210A1

## CPC

- H02M 1/44: Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
- B60L 2200/26: Rail vehicles
- B60L 2210/40: DC to AC converters
- H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections}
- H02M 7/493: the static converters being arranged for operation in parallel
- Y02T 10/72: Electric energy management in electromobility
- H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A method and arrangement are disclosed for a vehicle inverter drive having a voltage distribution block and two or more inverters, intermediate circuits of which are connected in parallel to the voltage distribution block for supplying voltage to the intermediate circuits, in which the intermediate circuits of the inverters are interconnected with a coaxial cable to minimize inductance in the parallel connection.

## Claims

### Claim 1

An arrangement for a vehicle inverter drive, the arrangement comprising:
a voltage distribution block;
two or more inverters, intermediate circuits of which are connected in a parallel connection to the voltage distribution block for supplying voltage to the intermediate circuits; and
a coaxial cable for interconnecting the intermediate circuits of the inverters to reduce inductance in the parallel connection.

### Claim 2 (depends on 1)

An arrangement as claimed in claim 1, wherein the coaxial cable is an armored single-phase cable, the armoring of which acts as another conductor.

### Claim 3 (depends on 2)

An arrangement as claimed in claim 2, wherein a cross-sectional area of the armoring is half or more than half of a cross-sectional area of a phase conductor of the single-phase cable.

### Claim 4 (depends on 1)

An arrangement as claimed claim 1, wherein the inverters comprise:
linking connectors connected to poles of the intermediate circuits of the inverters, the linking connectors of different inverters being interconnected with a coaxial cable.

### Claim 5 (depends on 1)

An arrangement as claimed in claim 1, wherein the intermediate circuits of the inverters are connected to the voltage distribution block with coaxial cables.

### Claim 6

A method for a vehicle inverter drive having a voltage distribution block and two or more inverters, intermediate circuits of which are connected in parallel connection to the voltage distribution block, the method comprising:
supplying voltage from the voltage distribution block to the intermediate circuits; and
interconnecting the intermediate circuits of the inverters via a coaxial cable for reducing inductance in the parallel connection.

### Claim 7 (depends on 2)

An arrangement as claimed claim 2, wherein the inverters comprise:
linking connectors connected to poles of the intermediate circuits of the inverters, the linking connectors of different inverters being interconnected with a coaxial cable.

### Claim 8 (depends on 2)

An arrangement as claimed in claim 2, wherein the intermediate circuits of the inverters are connected to the voltage distribution block with coaxial cables.

### Claim 9 (depends on 3)

An arrangement as claimed claim 3, wherein the inverters comprise:
linking connectors connected to poles of the intermediate circuits of the inverters, the linking connectors of different inverters being interconnected with a coaxial cable.

### Claim 10 (depends on 3)

An arrangement as claimed in claim 3, wherein the intermediate circuits of the inverters are connected to the voltage distribution block with coaxial cables.