Vibration suppression circuit

The vibration suppression circuit addresses the challenge of suppressing vibrations in power systems by using a DC bus connected to capacitors that absorb and release energy through parallel paths, achieving effective vibration suppression and energy regeneration.

JP2025040729APending Publication Date: 2025-03-25FUJI ELECTRIC CO LTD
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Patent Information

Application Number
JP2023147705
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-12
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

Existing power systems face challenges in suppressing vibrations generated in circuits, which can lead to overvoltage, undervoltage, or voltage fluctuations in connected devices, and there is a need to regenerate the energy of these vibrations.

Method used

A vibration suppression circuit connected to a DC bus, which includes at least two capacitors, absorbs and releases energy to suppress electrical vibrations. The circuit operates by charging and discharging capacitors through parallel charging and discharge paths, allowing energy to be regenerated and reducing circuit losses.

Benefits of technology

The proposed solution effectively suppresses electrical vibrations in power systems, preventing device damage and allowing for the regeneration of energy, thereby reducing circuit losses and improving energy efficiency.

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Abstract

To provide a vibration suppression circuit that suppresses vibrations generated in a circuit to prevent malfunctions caused by over-voltage or under-voltage, or voltage fluctuations in connected devices, and also regenerates the energy of vibrations generated in the circuit in the vibration suppression.SOLUTION: A vibration suppression circuit is provided for connecting a DC bus to which DC power is supplied, in which the DC bus is connected to at least two capacitors, and the vibration suppression circuit absorbs energy from the DC bus and releases it to the DC bus, thereby suppressing electrical vibration of the DC bus. The vibration suppression circuit may release the energy to the DC bus at a voltage lower than the voltage at which the energy of the DC bus is absorbed.SELECTED DRAWING: Figure 2
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