The Steady-State Modes of the Complex Electrical Supply System - Pumping Station

Vladyslav, Lysiak; Sabat, Myroslav; Yurii, Shelekh

doi:10.15276/eltecs.25.101.2017.04

Cited by 2 publications

(3 citation statements)

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“…Due to this, the PS hydraulic load and its power supply system should be considered as a single complex. The analysis of the modes of this complex was set as an objective and was partially solved in [6], whereas the control systems of the complex were developed in [7], [8]. A more detailed consideration of the main internal hydraulic parameters of EDCP and the pipeline was implemented in the mathematical model [9] of the hydraulic load of the PS electric drive.…”

Section: Analysis Of the Recent Studies And Publications On The Problemmentioning

confidence: 99%

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Dynamic Modelling of Centrifugal Hydraulic Load of Pumping Station Electric Drive

Lysiak¹,

Oliinyk²,

Sivakova³

et al. 2019

Energy eng. control syst.

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The paper analyzes modern trends in modelling the centrifugal hydraulic load of the pumping station electric drive. It was found that a very simplified approach to the representation of one of the inextricably linked subsystems (hydraulic or electromechanical) is mostly used, which significantly reduces the possibility of a complex analysis of the processes in its individual elements. Models based on this approach can be effectively applied to solve highly specialized tasks and do not always give a clear idea of the state and modes of all the elements of the subsystems. This problem was partially solved while carrying out the simulation of the steady state modes of the pumping stations. The paper offers an advanced dynamic model of the centrifugal hydraulic load of the pumping station electric drive which enables studying the processes in the main elements of the centrifugal pump, taking into account its internal parameters and dependences of these parameters on the physical parameters of the fluid.

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Section: Analysis Of the Recent Studies And Publications On The Problemmentioning

confidence: 99%

“…7 show the simulation of the time dependencies of the main real and fictitious coordinates of the operating mode of CP, the power losses in the CP elements and its family of head and flow characteristics at different values of the rotational speed of the impeller.…”

mentioning

confidence: 99%

Dynamic Modelling of Centrifugal Hydraulic Load of Pumping Station Electric Drive

Lysiak¹,

Oliinyk²,

Sivakova³

et al. 2019

Energy eng. control syst.

View full text Add to dashboard Cite

show abstract

“…In particular, authors of [6] in order to obtain unidirec tional electric current in the "electric" model of the CP used a simple element -the mphased rectifier (diode) [7], explaining its main function as a model of a pump spiral volute [8], and not as a transformer of coordinate systems. Authors [9], like [10,11], did not mention the rotational coordinate system at all.…”

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confidence: 99%

Creation of object-oriented model of centrifugal pump on the basis of electro-hydrodynamic analogy method

Kostyshyn¹,

Yaremak²,

Kurliak³

2019

NVNGU

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creATioN of objecT-orieNTeD moDel of ceNTrifuGAl PumP oN The bASiS of elecTrohyDroDyNAmic ANAloGy meThoD Purpose. Development of an objectoriented model of a centrifugal pump (CP), which would reflect the constructive features of the structure and processes in it, as well as the simultaneous balance of effort (delivery head and pressure), and flow (flow rates) variables, namely the balance of powers. methodology. Applying of the electrohydrodynamic analogy method to the flow diagram of liquid in a centrifugal pump en abled to synthesize the expanded complex equivalent circuit of a CP, spatially combined with its constructive elements. findings. The theoretical calculation of the CP performance characteristics according to its directory data for the entire interval of change in the flow rate duty taking into account the physical properties of the working fluid was carried out. Good agreement between the calculated and experimental performance characteristics of the main pump НM3600230 is illustrated. The relative error of calculations does not exceed 5-8 %. originality. The developed objectoriented model of the CP takes into account the vortical circulation processes of the motion of the liquid both at the input and output of the rotor wheel (impeller), and in the interblade space. Also, the model adequately reflects the link between the mechanical and hydraulic subsystem of the pump unit at all load modes, and especially in lowload ones, of its flow duty, taking into account its design parameters and physical properties of the working fluid. Practical value. The objectoriented model of the CP is easily adapted to modern computeroriented interactive tools (20sim, Simulink, Pspice, Dymola, etc.) designed to simulate the modes of operation of mechatronic technical systems, which in turn reveals the way for calculation and optimization of the CP power characteristics as an element of a pumping station.

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The Steady-State Modes of the Complex Electrical Supply System - Pumping Station

Cited by 2 publications

References 0 publications

Dynamic Modelling of Centrifugal Hydraulic Load of Pumping Station Electric Drive

Dynamic Modelling of Centrifugal Hydraulic Load of Pumping Station Electric Drive

Creation of object-oriented model of centrifugal pump on the basis of electro-hydrodynamic analogy method

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