Capacitor laminating bus bar

Abstract

The invention provides a capacitor laminating bus bar which comprises capacitors C, resistors R, power devices T1-T6, an anode bus plate, a cathode bus plate, a middle bus plate, an insulating plate, an anode line inlet end, a cathode line inlet end, an anode power device connecting end and a cathode power device connecting end. After an anode (+) and a cathode (-) are connected into a direct current power supply, the capacitors on a direct current bus filter the input power supply to obtain a more stable direct current power supply; the power devices realize corresponding conversion on direct current according to command control; a bus is required to be provided with a smaller parasitic distribution type inductor during conversion; the invention reduces system noise, electromagnetic interference / radio-frequency interference and the quantity of parts, is convenient for installation and field maintenance and improves the reliability of the system, and the uniformly distributed capacitors are concise and attractive; and the capacitor laminating bus bar can be realized by laminating the three bus plates, mounting the capacitors on the laminating bus plate according to polarity and sequence and finally connecting a laminated bus and the power devices by the anode power device connecting end and the cathode power device connecting end.

Description

technical field [0001] The invention relates to the fields of power electronics and communication, in particular to a capacitor laminated bus bar applied in the bus bar of medium and high power inverters. Background technique [0002] At present, the busbars used in medium and high power inverters have high inductance coefficient, are not compact in structure, cannot effectively utilize space and control system temperature, have large impedance and voltage drop, and cause great damage to components due to voltage spikes. The service life of electronic components is short. The system noise and electromagnetic interference / radio frequency interference are large, and the number of parts is large, which increases the instability of the system and the appearance is not good. SUMMARY OF THE INVENTION [0003] In order to overcome the deficiencies of the prior art, the present invention provides a capacitor laminated bus bar, which isolates single-layer or multi-layer flat conduc...

AI Technical Summary

Problems solved by technology

[0002] At present, the busbar inductance coefficient used in medium and high-power inverters is high, the structure is not compact, the space cannot be effectively used and the temperature of the control system is not effective, the impedance and voltage drop are large, the voltage spikes cause great damage to components, and the service life of electronic components is short. Large system noise and EMI / RFI, large number of components, increased system instability, poor appearance

Images