Development of the pump protection system against cavitation on the basis of the stator current signature analysis of drive electric motor

11th All-Russian Scientific and Practical Conference (with international participation) "Automation systems in education, science and production, 2017"

计算机科学;教育;自然科学

Kipervasser, M.V.^1 ; Gerasimuk, A.V.^1 ; Simakov, V.P.^1

Siberian State Industrial University, 42 Kirova street, Novokuznetsk

654007, Russia^1

关键词: Basis of designs;    Centrifugal pumping;    Emergency operations;    Functional diagrams;    Mechanical power;    Protection systems;    Pumping installations;    Registration methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/354/1/012018/pdf
DOI  :  10.1088/1757-899X/354/1/012018

来源: IOP

【 摘 要 】

In the present paper a new registration method of such inadmissible phenomenon as cavitation in the operating mode of centrifugal pump is offered. Influence of cavitation and extent of its development on the value of mechanical power consumed by the pump from the electric motor is studied. On the basis of design formulas the joint mathematical model of centrifugal pumping unit with the synchronous motor is created. In the model the phenomena accompanying the work of a pumping installation in the cavitation mode are considered. Mathematical modeling of the pump operation in the considered emergency operation is carried out. The chart of stator current of the electric motor, depending on the degree of cavitation development of is received. On the basis of the analysis of the obtained data the conclusion on the possibility of registration of cavitation by the current of drive electric motor is made and the functional diagram of the developed protection system is offered, its operation principle is described.