The invention discloses a power supply circuit and a maglev train, and relates to the field of maglev trains, and the power supply circuit comprises a power supply, an energy storage capacitor, a current limiting module, a charging control switch, a power supply control switch and a switch control module. The switch control module controls the charging control switch to be closed after receiving the energy storage signal, so that the power supply charges the energy storage capacitor through the current limiting module, and due to the existence of the current limiting module, current impact on the power supply due to the fact that the energy storage capacitor is equivalent to short circuit at the moment when the power supply charges the energy storage capacitor is reduced. Moreover, the switch control module controls the power supply control switch to be switched on only after the charging control switch is switched on for a preset time length, and the preset time length is not less than the time required for fully charging the energy storage capacitor, so that the impact on the power supply at the moment that the energy storage capacitor is powered on can be avoided; therefore, the safety and reliability of the power supply circuit and the maglev train are ensured.
本发明公开了一种供电电路及磁悬浮列车,涉及磁悬浮列车领域,包括供电电源、储能电容、限流模块、充电控制开关、供电控制开关和开关控制模块,开关控制模块在接收到储能信号后控制充电控制开关闭合使得供电电源通过限流模块为储能电容充电,由于限流模块的存在减小了在供电电源为储能电容充电的瞬间由于储能电容相当于短路对供电电源带来的电流冲击。并且,开关控制模块在充电控制开关闭合预设时长后才控制供电控制开关闭合,由于预设时长不小于储能电容充满电所需的时间,因此能够避免储能电容上电瞬间对供电电源带来的冲击,从而保证了供电电路以及磁悬浮列车的安全性和可靠性。
Power supply circuit and maglev train
一种供电电路及磁悬浮列车
2023-06-27
Patent
Elektronische Ressource
Chinesisch
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen |
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