High Precise Fuzzy Control for Piezoelectric Direct Drive Electro-Hydraulic Servo Valve

Zhou, Miaolei; Gao, Wei; Yang, Zhigang; Tian, Yantao

doi:10.1299/jamdsm.6.1154

Cited by 23 publications

(20 citation statements)

References 10 publications

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“…The main problems of that architecture are the high cost of using two piezo-stack actuators. To cope with this problem, in [28] a spring mechanism and only one piezo-stack were used to obtain bidirectional spool control, as shown in Fig. 7.…”

Section: Servovalves Driven By Piezo-stack Actuatorsmentioning

confidence: 99%

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A Review of Novel Architectures of Servovalves Driven by Piezo-Electric Actuators

Tamburrano¹,

Sciatti²,

Plummer³

et al. 2021

Preprint

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This paper is a thorough review of innovative architectures of electro-hydraulic servovalves that exploit actuation systems based on piezo-electric materials. The use of commercially available piezo-electric actuators, namely, piezo-stacks, amplified piezo-stacks, rectangular benders and ring benders, is very promising for the actuation of the main stages and of the pilot stages of servovalves, given the fast response and low weight of piezoelectric materials. The use of these actuators can also allow novel designs to be developed, thus helping manufacturers to overcome the typical drawbacks of commercial servovalves, such as the high complexity and the high internal leakage of the pilot stages of two stage servovalves, as well as the large size and weight of direct drive servovalves. Firstly, the piezoelectric actuators that can be used for driving servovalves are presented in the paper and their characteristics are thoroughly discussed. Then, the main novel architectures present in the literature are explained and compared with the commercial ones, and their performance parameters are discussed to draw conclusions on the prospect that some of these architectures can be used by manufacturers as future designs.

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Section: Servovalves Driven By Piezo-stack Actuatorsmentioning

confidence: 99%

“…In addition, asymmetrical piezo-stack designs, e.g. [15,28,29], will suffer from offset and hence reduced amplitude because of thermal expansion as they heat up (and stack heating is significant when operating at high voltage and high frequency due to the high peak current generated).…”

Section: Servovalves Driven By Amplified Piezo-stack Actuatorsmentioning

confidence: 99%

A Review of Novel Architectures of Servovalves Driven by Piezo-Electric Actuators

Tamburrano¹,

Sciatti²,

Plummer³

et al. 2021

Preprint

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show abstract

“…In recent years, many scholars have applied various control methods to study EHSS and obtained some results, for instance, PID methods [8,9]; fuzzy control method [10][11][12][13]; ADRC technology [14,15]; robust control [16,17] and so forth. A method combining the SMC and varying boundary layers is proposed for position control of an EHSS [18].…”

Section: Introductionmentioning

confidence: 99%

Sliding mode control for electro‐hydraulic proportional directional valve‐controlled position tracking system based on an extended state observer

Zhuang

Sun

Chen

2020

Asian Journal of Control

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A novel method combining the sliding mode control (SMC) and extended state observer (ESO) is proposed for position control of an electro-hydraulic servo system (EHSS), which is nonlinear in mechanical dynamics. Based on the SMC technique, the corresponding sliding mode controller is designed to guarantee the state variables of the closed-loop system to converge to the reference state by applying an ESO to estimate external disturbances and the internal dynamics. Also, simulation results are presented to illustrate the effectiveness of the control strategy; synchronously, SMC can achieve better control performance than proportional integral derivative (PID) method in comparison with the PID control approach.

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“…Many kinds of pneumatic control devices have been researched [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. Especially, piezoelectric (PZT) actuators are widely used [14][15][16][17][18][19][20][21][22][24][25][26][27][28] because some of these actuators have high response and large power. Because the strokes of PZT actuators are very small and must be increased, some researches use laminated PZTs [17][18][19], bimorph structure [16], motors [20,21,24], or displacement amplifier mechanisms [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

“…Especially, piezoelectric (PZT) actuators are widely used [14][15][16][17][18][19][20][21][22][24][25][26][27][28] because some of these actuators have high response and large power. Because the strokes of PZT actuators are very small and must be increased, some researches use laminated PZTs [17][18][19], bimorph structure [16], motors [20,21,24], or displacement amplifier mechanisms [25][26][27][28]. Especially for proportional or servo valves, since the stroke of the actuated part is critical, displacement amplifier mechanisms are used.…”

Section: Introductionmentioning

confidence: 99%

Optimization of orifice position in particle-excitation valve for proportional flow control

et al. 2017

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This paper reports an improvement of the particle-excitation flow control valve. The valve that we have designed in previous reports can control air flow, using particle excitation by piezoelectric resonance, and has the following advantages: small size, lightweight, high response and continuous airflow control. However, in our previous models, the relationship between the driving voltage and the flow quantity was nonlinear. In this report, we improved the valve to realize proportional flow control. The valve consists of the orifice plate, that has some orifices, and steel particles to seal the orifices and piezoelectric transducer. It controls air flow by the voltage applied to the transducer. For proportional flow control, it is important to adjust the orifice position adequately. In this report, we optimized the orifice position, considering resonance condition of the valve. We designed the experimental prototype using a boltclamped Langevin type transducer and decided orifice position. And we evaluated its vibration properties and flowrate characteristics. The experimental results showed that our designed prototype can proportionally control airflow.

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High Precise Fuzzy Control for Piezoelectric Direct Drive Electro-Hydraulic Servo Valve

Cited by 23 publications

References 10 publications

A Review of Novel Architectures of Servovalves Driven by Piezo-Electric Actuators

A Review of Novel Architectures of Servovalves Driven by Piezo-Electric Actuators

Sliding mode control for electro‐hydraulic proportional directional valve‐controlled position tracking system based on an extended state observer

Optimization of orifice position in particle-excitation valve for proportional flow control

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