Railway vehicle charger output current control system and control method

• Main Authors: LIU JINJING, GONG YUMING, SHAN BAOYU, ZOU CUNZUO
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2022
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses a railway vehicle charger output current control system and method, and the system is provided with a feedback control module which comprises a primary side current collection module which is used for collecting the current of the primary side of an isolation transformer and calculating the output current of a voltage and current output module, and an IGBT inverter module is driven by an isolation driving module. According to the railway vehicle charger output current control system disclosed by the invention, the feedback control module is arranged, and the feedback control module can collect the current of the primary side of the isolation transformer and the output voltage of the voltage and current output module and control the IGBT inverter module according to the collected current and voltage; therefore, a current sensor does not need to be arranged on the output module, that is, the charger does not need to be additionally provided with a heavy and expensive output current senso