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A Detailed Analysis and Design of a 1-kV Piezo-Driver With Precise Fast-Time Response for Hydraulic System
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DOI：10.1109/jestpe.2026.3691020.png)
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Abstract
En 中文
This article presents the study of a 1-kV DC/AC unipolar converter designed to drive piezoelectric actuators with a precise time response of 1 ms, used in a hydraulic system. The selected topology includes a pulse width modulation (PWM) current control to adjust the time response and enables energy recovery from the actuator. This article presents a detailed analysis, design, and control strategy of the proposed topology. Simulation and experimental results are also included in this work to evaluate time response accuracy, alongside efficiency measurements and loss estimation of the DC/AC converter. The experimental results demonstrate a time response adjustment accuracy of 96.52% (corresponding to 1.036 ms), with a loss estimation accuracy of 99.04%.
Keywords:
Average model
DC/AC unipolar converter
hydraulic transmission
off-road vehicles
piezo-actuator
piezoelectric actuator modeling
pulse width modulation (PWM) control
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4.9
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249
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0
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