Flatness-based High Frequency Control of a Hydraulic Actuator
作者： Florian Kock , Cornelius Ferrari
DOI: 10.1115/1.4005047
关键词: Electrohydraulic servo valve 、 Plant 、 Feed forward 、 Engineering 、 Control engineering 、 Control theory 、 Actuator 、 Flatness (systems theory) 、 Automatic frequency control 、 Hydraulic cylinder 、 Electro-hydraulic actuator
摘要: This paper presents the design and implementation of a nonlinear feedforward control algorithm for hydraulic actuator driven by multistage servo valve. Combined with conventional feedback algorithm, high frequencies can be achieved even large-scale strokes. In addition to desired trajectory, controller accepts predicted dynamic load on as an input. The performance concept well advantages input are verified in simulations experiments. Being exemplarily used realizing crankshaft-less test stand free piston engines, is potentially suitable further applications using actuators frequency domain.
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