An air-conditioning apparatus for a railway vehicle includes a plurality of refrigerant circuits each including a compressor, a first heat exchanger, an expansion device, and a second heat exchanger that are connected to each other by pipes; an inverter connected to an auxiliary power supply device of a railway vehicle and configured to control a frequency of the compressor; a switching unit configured to switch between wiring connection for supplying power to the compressor via the inverter and wiring connection for directly supplying power from the auxiliary power supply device to the compressor; and a controller configured to control a switching operation of the switching unit in such a manner that, when an air conditioning load of a boarding space of the railway vehicle is higher than a load threshold value, wiring for directly supplying power from the auxiliary power supply device to at least one of the compressors of the plurality of refrigerant circuits is established.
RAILROAD CAR AIR-CONDITIONING APPARATUS
EISENBAHNWAGENKLIMATISIERUNGSVORRICHTUNG
APPAREIL DE CLIMATISATION DE WAGON DE CHEMIN DE FER
2021-08-11
Patent
Electronic Resource
English
Engineering Index Backfile | 1945
|Air conditioning in railroad cars
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|Air conditioning of railroad equipment
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