The invention discloses a wide-gain-based bidirectional DC/DC converter and a method. The wide-gain-based bidirectional DC/DC converter comprises a thin-film capacitor (FC), a power Bat and a novel wide-gain bidirectional DC/DC converter, a low-voltage side is a thin-film capacitor (FC), and a high-voltage side direct-current bus capacitor CH is connected with a motor inverter direct-current bus in parallel; when a vehicle works in a decelerating or braking state, the novel wide-gain bidirectional DC/DC converter stores braking energy on a high-voltage direct-current bus side in a thin-film capacitor (FC); when the vehicle works in an acceleration state, the novel wide-gain bidirectional DC/DC converter boosts the energy of the thin-film capacitor (FC) and then sends the boosted energy to the DC bus CH, and the boosted energy is connected with the power Bat in parallel to be used by a driving motor, so that the dynamic performance of the power Bat is improved.
本发明公开了一种基于宽增益双向DC/DC变换器及方法,包括薄膜电容(FC)、动力电池(Power Bat)、新型宽增益双向DC/DC变换器;低电压侧为薄膜电容(FC),高压侧直流母线电容CH与电机逆变器直流母线并联;车辆工作在减速或制动状态下,所述新型宽增益双向DC/DC变换器将高压直流母线侧的制动能量存储在薄膜电容(FC)中;当车辆工作在加速状态,所述新型宽增益双向DC/DC变换器将薄膜电容(FC)能量升压后送至直流母线CH,与动力电池(Power Bat)并联供驱动电机使用,以提升其动态性能。
Bidirectional DC/DC converter based on wide gain and method
一种基于宽增益双向DC/DC变换器及方法
2024-12-13
Patent
Electronic Resource
Chinese
IPC: | 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 , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
European Patent Office | 2023
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