Mixed pressure control system for a centrifugal pump

Gevorkov, Levon; Vodovozov, Valery

doi:10.1109/cpe.2017.7915198

Cited by 8 publications

(2 citation statements)

References 10 publications

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“…These strategies include the implementation of different types of pumps and motors, the use of various photovoltaic module technologies, the design of power converters, the implementation of control techniques for the maximum power point tracker (MPPT), and methods of electrical reconfiguration of the PVA [7]. Among the main optimization techniques are sizing [8,9], control optimization [10,11], and performance prediction [12,13].…”

Section: Introductionmentioning

confidence: 99%

Optimizing Method for Photovoltaic Water-Pumping Systems under Partial Shading and Changing Pump Head

Sevilla-Camacho,

Robles-Ocampo,

De la Cruz-Arreola

et al. 2024

Clean Technol.

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Photovoltaic systems for pumping water, based on direct current powered motor pumps, have great application in small rural regions without electrical networks. In addition, these systems provide environmental benefits by replacing fossil fuels. However, these systems reduce their performance due to partial shading, which is magnified by the internal mismatch of the PV modules. This work proposes an intelligent, low-cost, and automatic method to mitigate these effects through the electrical reconfiguration of the PV array. Unlike other reported techniques, this method considers the pump head variations. For that, the global voltage and current supplied by the PV array to the motor pump subsystem are introduced to an artificial neural network and to a third-order equation, which locates the shaded PV module and detects the pump head, respectively. A connection control implements the optimal electrical rearrangement. The selection is based on the identified partial shading pattern and pump head. Finally, the switching matrix modifies the electrical connections between the PV modules on the PV array without changing the interconnection scheme, PV array dimension, or physical location of the PVMs. The proposed approach was implemented in a real PV water pumping system. Low-cost and commercial electronic devices were used. The experimental results show that the output power of the PV array increased by 8.43%, which maintains a more stable level of water extraction and, therefore, a constant flow level.

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Section: Introductionmentioning

confidence: 99%

Optimizing Method for Photovoltaic Water-Pumping Systems under Partial Shading and Changing Pump Head

Sevilla-Camacho,

Robles-Ocampo,

De la Cruz-Arreola

et al. 2024

Clean Technol.

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“…The consumption of energy in a centrifugal pump system highly rely on an electric drive. For example, at a constant speed operation, it is mandatory to use throttle valves to regulate either the pressure or flow but it was old method and used a lot of energy which is lead to energy crisis [11][12].…”

Section: Introductionmentioning

confidence: 99%

Centrifugal Pump Performance Characteristics for Domestic Application

Jilani

Razali

2018

MATEC Web Conf.

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Water pressure problems at home can be quite frustrating in daily life which is comes in different ways of complication. It may take forever for the faucets to fill a bathtub, or a slow spray shower head and longer time taken for the washing machine to run a cycle. The problem can be fixed by installing a pressure booster pump. This research is embarked to study on a centrifugal pump performance with a view to analyse pressure built-up and flowrate in pipe at fixed speed. A simple and inexpensive test rig is developed to resemble water distribution for domestic use; i.e. house application. The method is then experimentally validated to measured and analysed the pump performance such as water pressure, water flowrate, power of pump and pump speed. Since the centrifugal pump are added, the pump is able to boost the water flowrate. However, since the centrifugal pump work at constant speed, the water pressure in pipe is high when the water demand is low. The maximum pressure inside the pipe was 28.24 psi which quite high and exceed the piping standards. Power consumption also remained constant approximately 0.500 kWh when water demand was low which led to energy wastage.

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