Characterization of energy consumption of new piezo actuator system used for hydraulic on/off valves

Šimić, Marko; Herakovič, Niko

doi:10.1016/j.jclepro.2020.124748

Cited by 17 publications

(10 citation statements)

References 6 publications

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“…A simple inertial pump consisting of a cantilevered beam with the piezoelectric actuator and bionic valve made of silicone was proposed for the possible application to a heart valve with small flow resistance and large flow area [23]. The energy consumption of a four-way digital piezo stack-based valve was studied and demonstrated that a huge reduction of the electrical energy consumption during motion of switching and holding was achieved compared to other hydraulic on/off valves [24]. Using an asymmetric flexural hinge mechanism to which an asymmetric triangular displacement amplification mechanism is applied, the lateral displacement was increased, and the output speed of the piezoelectric actuator at low frequencies was significantly improved [25].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Spool Displacement Control to the Flow Rate in the Piezoelectric Stack-Based Valve System Subjected to High Operating Temperature

et al. 2021

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This work investigates the effect of spool displacement control of the piezoelectric stack actuator (PSA) based valve system on the flow motion of the pressure drop and flow rate. As a first step, the governing equations of the structural parts of the displacement amplifier and spool are derived, followed by the governing equation of the fluid part considering control volume and steady flow force. Then, an appropriate size of the valve is designed and manufactured. An experimental apparatus to control the spool displacement is set up in the heat chamber and tracking control for the spool displacement is evaluated at 20 °C and 100 °C by implementing a proportional-integral-derivative (PID) feedback controller. The tracking controls of the spool displacement associated with the sinusoidal and triangular trajectories are realized at 20 °C and 100 °C. It is demonstrated that the tracking controls for the sinusoidal and triangular trajectories have been well carried out showing the tracking error less than 3 μm at both temperatures. In addition, the flow motions for the pressure drop and the flow rate of the proposed valve system are experimentally investigated. It is identified from this investigation that both pressure drop and flow rate evaluated 20 °C have been decreased up to 18% at 100 °C. This result directly indicates that the temperature effect to control performance of the structural part and fluid part in the proposed PSA based valve system is different and hence careful attention is required to achieve the successful development of advanced valve systems subjected to a wide range of the operating temperature.

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Section: Introductionmentioning

confidence: 99%

The Effect of Spool Displacement Control to the Flow Rate in the Piezoelectric Stack-Based Valve System Subjected to High Operating Temperature

et al. 2021

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“…At present, China's power supply is still dominated by thermal power, which is limited by the planning and operation technology of new energy units, resulting in excess power of the power supply and aggravating the problem of wind abandonment. Therefore, the standby rate of the system and the minimum technical output coefficient of conventional units will have an impact on the wind abandonment of wind farms [17][18].…”

Section: ) Wind Power Characteristicsmentioning

confidence: 99%

Power Network Planning Method of New Energy Consumption Based on Automatic Control Theory

2022

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With the shortage of resources of traditional fossil energy and the increasingly serious problems of environmental pollution, wind power generation began to develop rapidly. Therefore, how to improve the absorption capacity of new energy and reduce wind abandonment new energy. In particular, as a major energy, Xinjiang wind has broad prospects for new energy development. "Abandoning wind and limiting power" is also very serious, which restricts the development of new energy. Therefore, in order to make up for the lack of local consumption capacity of level, this paper considers building power transmission channels across regions and countries, expanding the wind power balance area and reducing wind abandonment. In the context of large-scale access of new energy to the power grid, the power grid planning research is mainly based on the consumption capacity of new energy, and this method is applied to the actual power grid research in a province of China. Based on the actual data of a region in a province, a comprehensive calculation example is designed to simulate and analyze the contribution of various innovative consumption paths to the consumption of new energy; Two groups of different data are selected for simulation to reflect the relationship between the development scale of new energy and the demand for consumption capacity under different energy structure scenarios. Through simulation analysis, the technical feasibility and economy of comprehensive consumption of new energy are verified, in order to provide reference for other regions.

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“…Due to the advantages of high rigidity, high bandwidth, and fast frequency response, piezostack actuators (PSAs) have been extensively used in micro-positioning [ 1 , 2 , 3 ], micro-manipulation [ 4 , 5 , 6 ], energy harvesting [ 7 , 8 , 9 ], aerospace engineering [ 10 , 11 , 12 , 13 ], optical alignment [ 14 , 15 , 16 , 17 , 18 ] and many other engineering fields [ 19 , 20 ]. Nevertheless, the main drawback of PSAs are their small stroke, which may not meet the requirements of most applications [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of a Conical Bridge-Type Displacement Amplification Mechanism Using the Non-Uniform Rational B-Spline Curve

Wang,

Zhang,

Liu

et al. 2023

Materials

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This paper presents a new analytical model of a conical bridge-type displacement amplification mechanism (DAM) considering the effect of external loads and a piezostack actuator (PSA). With the merits of simple implementation and better fitting, the non-uniform rational B-spline (NURBS) is employed to parameterize conical connecting beams of the DAM, and an analytical model of the displacement amplification ratio and input stiffness is established based on Castigliano’s second theorem. After that, considering the interactions with elastic loads and PSA, the actual displacement amplification ratio of the conical DAM is obtained, and the effect of the shape of connecting beams in the performance of the DAM is further analyzed. The proposed analytical model is verified by finite element analysis (FEA), and the results show a maximum error of 6.31% between the calculated value and FEA results, demonstrating the accuracy of the proposed model. A prototype of the conical DAM with optimized shape is fabricated and experimentally tested, which further validates the effectiveness and accuracy of the proposed analytical model. The proposed model offers a new method for analysis and shape optimization of the bridge-type DAM under specific elastic loads.

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Characterization of energy consumption of new piezo actuator system used for hydraulic on/off valves

Cited by 17 publications

References 6 publications

The Effect of Spool Displacement Control to the Flow Rate in the Piezoelectric Stack-Based Valve System Subjected to High Operating Temperature

The Effect of Spool Displacement Control to the Flow Rate in the Piezoelectric Stack-Based Valve System Subjected to High Operating Temperature

Power Network Planning Method of New Energy Consumption Based on Automatic Control Theory

Modeling and Analysis of a Conical Bridge-Type Displacement Amplification Mechanism Using the Non-Uniform Rational B-Spline Curve

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