Digital current regulator for proportional electro-hydraulic valves with unknown disturbance rejection

Canuto, Enrico; Acuña-Bravo, Wilber; Agostani, Marco; Bonadei, Marco

doi:10.1016/j.isatra.2013.08.013

Cited by 12 publications

(6 citation statements)

References 19 publications

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“…The four state predictors which consists of (33) and (35) remain valid also in this case since we need the prediction of for computing and in (34). In addition, we need the embedded model of (24) for computing and in (34).…”

Section: Problem B: Embedded Model State Predictor and Control Lawmentioning

confidence: 99%

“…In addition, we need the embedded model of (24) for computing and in (34). Two state-decoupled fourth-order DT state equations 1,2 derive from (24) and (5).…”

Section: Problem B: Embedded Model State Predictor and Control Lawmentioning

confidence: 99%

“…As a fourth extension, a gain tuning procedure is available which exploits the relation between pole placement and asymptotic closed-loop transfer functions [32]. EMC has been applied to space and industrial control systems [33], [34].…”

Section: Introductionmentioning

confidence: 99%

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The four-tank control problem: Comparison of two disturbance rejection control solutions

2017

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The paper aims to compare and prove a pair of disturbance/uncertainty rejection control laws for the well-known four tank control problems. Control requirements are expressed in terms of a set point sequence as it usual in the literature. Uncertainty class is defined as the union of four sub-classes: unknown disturbance, parametric uncertainty, measurement errors and neglected dynamics. Modelling and design allow insight of the dynamic properties of the problem. They are formulated by a pair of theorems which fix the range of application. Theorem are confirmed by the results simulated runs, and indicate the correct way to further broaden control design applicability. Disturbance rejection (better uncertainty) design is deployed using the Embedded Model Control methodology: only unknown disturbance and parametric uncertainty can be rejected, whereas neglected dynamics effects must be filtered. As a result, simple performance and stability inequality can be formulated in the frequency domain and lead to closed-loop pole placement. Inequalities are such to reveal whether pole placement is feasible and how feasibility can be recovered, an issue which at authors knowledge is rarely encountered in the literature. Simulated runs prove the design procedure.

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Section: Problem B: Embedded Model State Predictor and Control Lawmentioning

confidence: 99%

“…In addition, we need the embedded model of (24) for computing and in (34). Two state-decoupled fourth-order DT state equations 1,2 derive from (24) and (5).…”

Section: Problem B: Embedded Model State Predictor and Control Lawmentioning

confidence: 99%

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The four-tank control problem: Comparison of two disturbance rejection control solutions

2017

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“…Based on the embedded model control theory, the embedded model is established in Canuto's control system [50]. The utility model achieved the purpose of suppressing the disturbance of the current value and the voltage value of the coil, and realized the accurate control.…”

Section: Research On Control Strategymentioning

confidence: 99%

Research Progress of Related Technologies of Electric-Pneumatic Pressure Proportional Valves

et al. 2017

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Abstract:Because of its cleanness, safety, explosion proof, and other characteristics, pneumatic technologies have been applied in numerous industrial automation fields. As a key controlling element of a pneumatic system, electric-pneumatic pressure proportional valves have attracted the attention of many scholars in recent years. In this paper, in order to illustrate the research status and the development trend of electric-pneumatic pressure proportional valves, firstly, several related technologies will be introduced, for example, simulation methods and experimental modes. In addition, controlling methods, structural styles, and feedback forms are also compared in several types of pressure proportional valves. Moreover, the controlling strategy, as a significant relevant factor affecting the efficiency of valves, will be discussed in this paper. At the end, the conclusion and worksof electric-pneumatic pressure proportional valves in the future will bediscussed to achieve the electrical integration.

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“…Chen Chen [4] introduced a design on driving circuit of SIDI injector based on L9707 chip and discussed the current circuit, in their researches, the performances of SIDI injector were measured and analyzed using varied driven strategies. Enrico Canuto [5] described a digital current regulator for proportional electro-hydraulic valves to provide the solenoid valve a fast and ideal force within the limits of the power supplier. Bing Xu [6] investigated the modeling and dynamic characteristics of large-flow directional valve on a three-stage fast response, and some key structural factors were concerned to optimize the structure and reduce the response time.…”

Section: Introductionmentioning

confidence: 99%

Power losses and dynamic response analysis of ultra-high speed solenoid injector within different driven strategies

Cheng

Zhang

Xie

2015

Applied Thermal Engineering

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Digital current regulator for proportional electro-hydraulic valves with unknown disturbance rejection

Cited by 12 publications

References 19 publications

The four-tank control problem: Comparison of two disturbance rejection control solutions

The four-tank control problem: Comparison of two disturbance rejection control solutions

Research Progress of Related Technologies of Electric-Pneumatic Pressure Proportional Valves

Power losses and dynamic response analysis of ultra-high speed solenoid injector within different driven strategies

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