The problem to be solved by the present invention is to provide a power supply system and a moving object capable of reducing switching loss and steady-state loss compared with the prior art. In order to solve the above problem, this power supply system (1) is provided with: a DC power supply (30) that outputs DC power; a variable voltage power supply (7) as an insulated bidirectional DC/DC converter that outputs power of a variable voltage (E2) from secondary input/output terminal pairs (72p, 72n); a positive power line 21 and a negative power line 22 connected to both electrodes of the DC power supply 30; a switching circuit (5) including a plurality of leg switching elements (51, 52, 53, 54) connecting the power lines (21, 22) and the load (4); a reverse current prevention switching element (34) provided between a pair of secondary input/output terminals (72p, 72n) in the positive power line (21); a power supply driving device 6 that operates the variable voltage power supply 7 and the backflow prevention switching element 34; and a switching circuit driving device (8) that operates the switching circuit (5). The secondary side input/output terminal pairs (72p, 72n) are connected to the positive electrode power line (21).
本发明要解决的问题是,提供一种与以往相比可以降低开关损耗及稳态损耗的电源系统及移动体。为了解决上述问题,本发明的电源系统1包括:直流电源30,输出直流电力;作为绝缘双向直流/直流转换器的可变电压电源7,从二次侧输入/输出端子对72p,72n输出可变电压E2的电力;正极电力线21及负极电力线22,连接于直流电源30的两极;开关电路5,包括连接电力线21,22与负载4的多个桥臂开关元件51,52,53,54;防逆流用开关元件34),设置在正极电力线21中的二次侧输入/输出端子对72p,72n之间;电源驱动装置6,操作可变电压电源7及防逆流用开关元件34;及,开关电路驱动装置8,操作开关电路5。二次侧输入/输出端子对72p,72n均连接于正极电力线21。
Power supply system and moving object
电源系统及移动体
2022-12-09
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |