Switched reluctance motor used in submersible pump

Solar-powered water pumps are the most efficient way to utilise the available abundant solar power. Innumerable research has been carried out to develop an efficient solar-powered water pumping system (SPWPS) using various electric motor drives. Due to the critical nature of water pumping ap

Project Title

Switched reluctance motor used in submersible pump

Project Area of Specialization

Electrical/Electronic Engineering

Project Summary

Solar-powered water pumps are the most efficient way to utilise the available abundant solar power. Innumerable research has been carried out to develop an efficient solar-powered water pumping system (SPWPS) using various electric motor drives. Due to the critical nature of water pumping application, there exists a need to utilise a robust, highly reliable, cost-effective, high starting torque and efficient motor drive. Since the switched reluctance motor (SRM) drive has all these required characteristics, it is emerging as one of the prominent drives for water pumping system (WPS).

This project deals with PVWPS employing a switched reluctance motor (SRM) drive. SRM drive offers a number of merits due to its simple construction, highly starting torque and fast response. In addition to that, rotor of SRM has no coils or magnets which results in low copper losses, high robustness and low maintenance. Conventional PVWPS employing SRM consists of a PV array as an energy generator, a DC-DC converter used to operate the PV array at its maximum power point (MPP), a converter for driving the SRM drive, a water pump coupled to SRM. The proposed PVWPS presented in this paper eliminates the DC-DC converter used for maximum power point tracking (MPPT) and adapts the SRM converter to operate the PV array at MPP as well as driving the SRM. Consequently, the cost of the PVWPS is reduced. Modeling, simulation and performance analysis of the proposed PVWPS with adaptive converter are presented to study its effectiveness.

Project Objectives

Main objectives of research would be as under;

1. To design Switched Reluctance motor (SRM) converter drive system.

2. Simulation Modelling and simulation of SR Motor converter drive.

3. To Design a new converter hardware for SR motor having low cost and low losses.

4. To compare SR Motor and its converter drive with other converter topologies. E.g. in terms of Cost, Efficiency, acoustic noise, and other switching losses.

Project Implementation Method

The above procedure can be summarized in following 5 stages as;

Stage 1: To design of different switched reluctance motor drive configuration in terms of losses efficiency and performance.

Stage 2: Selection of new converter and to design a converter for SR motor and its experimental setup.

Stage 3: Getting results of various experiments with efficiency analysis.

Stage 4: Testing of SR converter and data collection.

Stage 5: Comparative Analysis of Data based on result obtained.

Benefits of the Project

Various positive aspects of solar-powered systems are there; the uncertainty in grid power supply, especially in remote and distant areas, is still the major constraint with the grid-integrated solar water pump. Besides, the voltage fluctuations in the grid voltage in such areas can also damage the system and reduce the overall system reliability. These shortcomings with standalone and grid-integrated systems are needed to be considered in order to ensure a reliable and uninterruptable water supply with the efficient operation of the WPS. Therefore, the standalone system with battery support is one of the unique solutions and is developed in this work. Again, no such system with any of the motor drives including SRM is reported as of now. In addition, the battery connected to the system also provides the constant voltage at the DC link irrespective of any voltage fluctuation in the system.

Technical Details of Final Deliverable

Giving non-contaminated water fit for use in adequate amounts, thus securing wellbeing and guaranteeing maintainable improvement are the significant area of concern for cattle rearing people and farmers. Plentiful water supply in remote areas is required to guarantee the feeding and other domestic needs. Solar powered photovoltaic (SPV) exhibit based water pumping is most acknowledged and respected due to use of sun as an energy source. Solar energy dependant array for water pumping is productive, dependable and savvy for domesticated animals watering, water system purposes and for supply of water for residential applications in remote areas.

Apart from special machines like Switched Reluctance motor, distinctive DC and AC engines have been proposed so far for SPV cluster based water pumping framework. The issues related with DC engines are the standard support frequently because of nearness of commutator and brushes. On the opposite side, AC engines are powerless to work at low speeds, complex control and low unwavering quality. SPV controlled permanent magnet machines, be it brushless type or synchronous operation type, utilize different Maximum Power Point Tracking (MPPT) strategies have been contemplated making use of different DC-DC converter circuits. The DC engine, PMSM and an Induction machine are analyzed and finally it is reasoned that the special purpose machines are the best choice for worldwide productivity and improvement of SPV nourished water pumping system. The drawback of brushless DC engine (BDCM) drive frameworks is a complicated control technique and entangled inverter topology. The significant downside with these engines is the irreversible demagnetization of the magnets used. Among every special electrical machine, the SRM plays vital role. The rotor of SRM contains no conductors or permanent magnets. Many different choices of converter topologies are proposed for the SRM.

A Switched Reluctance Motor has several advantages over a conventional AC, DC or induction machine. The most appreciable features of a reluctance motor are as follows:

1) Windings are on the stator only, with no windings or magnets on the rotor, thus saving materials on the rotor.

2) The concentric windings also reduce the end-turn buildup, thus minimizing the inactive part of the materials and resulting in lower resistance and copper losses

3) They produce better output due to continuous operation and high speeds.

4) As the windings are electrically separate from each other and as they have negligible mutual coupling, electrical fault in one phase does not affect other phases, in general. Such a feature is unique to the switched reluctance motor.

Final Deliverable of the Project

HW/SW integrated system

Core Industry

Manufacturing

Other Industries

Core Technology

Artificial Intelligence(AI)

Other Technologies

Sustainable Development Goals

Affordable and Clean Energy, Decent Work and Economic Growth, Industry, Innovation and Infrastructure, Responsible Consumption and Production, Climate Action

Required Resources

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