In the system solar power has been used for cultivation. Solar photovoltaic cells convert energy into electricity through (SPV) effect. Generated DC voltage then converted in to AC by pump controller, this is as input of Variable Frequency Drive (VFD). The VFD acts a motor controller that controls submersible varying frequency and its supply. associated with controller. Regulated three phase ou...

Abstract It is desirable to control pitch motion of semi-submersible wind platforms reduce turbine hub acceleration and increase structural fatigue life. This achieved by balancing the moment on platform due heave float excitation generating a differential internal head water between floats though pump. demonstrated with an experimentally validated linear diffraction-radiation-drag model ideali...

Nowadays submersible deep well pumps are the most used irrigation systems in agriculture field. Efficient operation and economical life of is an important issue. One parameters affecting pump efficiency cavitation The one problems frequently faced that widely could cause more undesired effects such as loss hydraulic performance, erosion, vibration noise. This paper presents a novel model for de...

Object of research: induction submersible electric motor as a part drive centrifugal pump.
 Subject the non-nominal operation modes motors, including wedging.
 Purpose creation research methodology motors at operation, variation frequency feeding voltage and its magnitude.
 Methods theory electromechanical transformation energy, digital modeling, statistical data processing, meth...

Ion pump controllers are often considered just accessories needed to power ion pumps. Only basic parameters such as the maximum power and the communication interface are considered relevant, with the power usually being overspecified, resulting in needlessly expensive controllers. However, a properly designed controller can substantially improve the ion pump performance. A controller with varia...

Abstract This study introduces a comprehensive and cost-effective approach to diagnose treat the asphaltenes precipitation problems in different downhole conditions. The proposed has been successfully applied two oil wells (Well-I, Well-II) located Western Desert of Egypt. produce moderate high gravity with low content using Electrical Submersible Pumps (ESP). In such operating conditions, soli...

Background: Deep-sea manned submersible operation could induce mental workload and influence neurophysiological measures. Psychophysiological responses to submersible operation are not well known. The main aim of this study was to investigate changes in EEG and ECG components and subjective mental stress of pilots during submersible operation. Methods: There were 6 experienced submersible pilot...