The invention discloses a bidirectional DC-DC converter and an elevator system, and relates to the technical field of feedback grid-connected elevator energy conservation. The bidirectional DC-DC converter comprises a bridge inverter circuit, an LLC resonance unit, a transformer and a T-type circuit. The bridge inverter circuit comprises a first inverter input end, a second inverter input end, a first inverter output end and a second inverter output end; the first inversion input end and the second inversion input end are respectively connected with a positive electrode and a negative electrode of an energy storage device; the LLC resonance unit comprises a first network input end connected with the first inversion output end, a second network input end connected with the second inversion output end, a first network output end and a second network output end; two ends of a primary winding of the transformer are respectively connected with the first network output end and the second network output end; the T-type circuit is connected between the two ends of the secondary winding of the transformer, and the output end of the T-type circuit is connected to the two ends of the load. According to the invention, effective electrical isolation can be realized.
本发明公开了一种双向DC‑DC变换器及电梯系统,涉及回馈并网型电梯节能技术领域。双向DC‑DC变换器包括:桥式逆变电路、LLC谐振单元、变压器和T型电路;桥式逆变电路包括第一逆变输入端、第二逆变输入端、第一逆变输出端和第二逆变输出端;第一逆变输入端和第二逆变输入端用于分别与储能装置的正极和负极连接;LLC谐振单元包括与第一逆变输出端连接的第一网络输入端、与第二逆变输出端连接的第二网络输入端、第一网络输出端和第二网络输出端;变压器的初级绕组的两端分别与第一网络输出端、第二网络输出端连接;T型电路连接在变压器的次级绕组的两端之间,T型电路的输出端连接至负载的两端。本发明能实现有效的电气隔离。
Bidirectional DC-DC converter and elevator system
一种双向DC-DC变换器及电梯系统
11.06.2024
Patent
Elektronische Ressource
Chinesisch
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 / B66B Aufzüge , ELEVATORS |
Bidirectional safety tongs for elevator and elevator device
Europäisches Patentamt | 2021
|Bidirectional double-speed governor for elevator and elevator
Europäisches Patentamt | 2023
|