Anti-saturation negative capacitance piezoelectric shunt circuit semi-passive vibration control device and method

• Main Authors: HUA HONGXING, SU ZHIWEI, HUANG XIUCHANG, ZHENG ZHIWEI
• Format: Patent
• Language: Chinese; English
• Published: 24.03.2020
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION

The invention provides an anti-saturation negative capacitance piezoelectric shunt circuit semi-passive vibration control device and method. The device comprises a slip ring power supply device stator, a slip ring power supply device rotor and a shunt circuit. The slip ring power supply device rotor is fixed on a rotating shaft of the propulsion shafting through interference fit, and is connectedwith the slip ring power supply device stator through a bearing; the piezoelectric shunt circuit is connected to the rotating shaft and rotates along with the rotating shaft. A high-voltage operational amplifier is adopted, and a bidirectional transient suppression diode, a diode for protecting the operational amplifier, a capacitor for a bypass power supply and the like are combined to improve the robustness of the high-voltage operational amplifier; a common operational amplifier is adopted, and a high-voltage power amplifier circuit, a resistive voltage divider circuit and a high-voltage buffer circuit are combined