0000000000116337

AUTHOR

Viktor Hristov Donkov

showing 3 related works from this author

An analysis of model predictive control with integral action applied to digital displacement cylinders

2020

This article aims to analyze Model Predictive Control (MPC) for the control of multi-chamber cylinders. MPC with and without integral action has been introduced. Three different algorithms have been used to solve the optimization problem in the MPC. The different algorithms have been compared with an industrial solver. The influence of changing mass, choosing a different middle line pressure, system delays, signal noise, velocity estimation, and changing pressure levels has been investigated. It is concluded that for the small prediction horizon used in the paper a simple algorithm such as A can produce results as good as the previously used Differential Evolution algorithm in less than hal…

digital displacement cylindersOptimizationbusiness.industryStructural engineeringVDP::Mechanical engineering: 570lcsh:QA75.5-76.95Computer Science ApplicationsDigital Displacement CylindersIntegral actionModel predictive controlModell-prediktiv reguleringControl and Systems EngineeringVDP::Maskinfag: 570Modeling and SimulationOptimaliseringDisplacement (orthopedic surgery)lcsh:Electronic computers. Computer scienceModel predictive controlbusinessSoftwareModel Predictive ControlMathematics
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Application of Model Predictive Control in Discrete Displacement Cylinders to Drive a Knuckle Boom Crane

2018

In this paper, two Discrete Displacement Cylinders (DDCs) are used to drive the boom of a knuckle boom crane. DDCs operate by connecting one of several available pressure levels to each chamber in order to produce different forces. A trade-off exists with such systems, between the accuracy of tracking and energy dissipation due to switching. A popular way to approach this problem is a Force Shifting Algorithm (FSA). However, in this paper, the trade-off is managed by use of a Model Predictive Control (MPC) algorithm. The tracking accuracy and energy efficiency of the MPC and FSA strategies for DDCs are compared to a PID strategy for standard cylinders. The comparison is obtained by use of a…

Computer sciencePID controllerDissipationKnuckle Boom CraneBoomDisplacement (vector)Model predictive controlKnucklemedicine.anatomical_structureControl theoryDiscrete Displacement CylindersmedicineModel predictive controlEnergy (signal processing)Efficient energy use
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Digital Hydraulic Technology for Linear Actuation:A State of the Art Review

2020

This paper analyses the current state of the art in linear actuation with digital hydraulics. Based on the differences in their aims the paper partitions the area into four actuation concepts – parallel valve solutions, single switching valve solutions, multi-chamber cylinders, and multi-pressure cylinders. The concepts are evaluated based on accuracy and smoothness of motion, switching load, reliability, efficiency and the number of components required.

SmoothnessHydraulicsComputer scienceMechanical EngineeringDigital hydraulicsGeneral Physics and AstronomyMechanical engineeringState of the art reviewState of the artGeneralLiterature_MISCELLANEOUSlaw.inventionComputer Science::OtherReliability (semiconductor)lawMulti-chamber cylindersState (computer science)Switching Valves
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