Induction Motors Market: Roadmap to Innovation & Sustainability
Recognized as one of the most remarkable innovations in contemporary history, induction motors or asynchronous motors, officially kick-started the second industrial revolution by significantly enhancing energy generation efficiency. In the present engineering world, these electric motors are utilized in a diverse range of applications, such as household appliances, bulldozers, conveyors, die-stamping machines, reciprocating pumps, crushers, centrifugal pumps, and others. According to Inkwood Research, the global induction motors market is projected to grow with a CAGR of xx% during the forecast years 2023-2032.
An Electrical Guide to Induction Motors | Working Principle & Advantages
Induction motors work on the principle of electromagnetic induction – a phenomenon where an electromagnetic field is induced into the rotor conductors when placed in a rotating magnetic field. The two essential parts of induction motors include a stator and a rotor. While the stator, a stationary part, carries the overlapping windings, the rotor carries the main or field winding. Moreover, the stator’s windings are equally displaced at an angle of 120°. Since an induction motor does not have a commutator, like in a DC motor, it offers the advantage of good speed regulation without sparking.
In terms of cost-effectiveness, induction motors are more affordable owing to the absence of commutators and slip-rings. They are also maintenance-free, unlike DC and synchronous motors, and can be operated in explosive and polluted environments since they do not have brushes that can lead to sparks. Furthermore, as the most extensively used motors in industrial as well as commercial applications, three-phase induction motors have a self-starting torque and are characterized by simple and rugged construction, thus yielding higher efficiency.
The two primary types of three-phase induction motors include slip-rings and squirrel cage motors. The characteristics which make the squirrel cage motors broadly applicable entail their simple design as well as rugged construction. Also, with external resistors, the slip-ring motors have a high starting torque. Aligning with this, as per Inkwood Research’s analysis, the three-phase induction motor segment is anticipated to dominate the type category during the forecasted period.
Predictive Maintenance Technology | Turning the Wheels of Innovation
Induction motors impact nearly all aspects of modern living, making up for a significantly large portion of industrial processes, in order to manufacture a wide portfolio of products. Also, the efficiency and simplicity of the design make these motors particularly ideal for applications that demand excellent speed, precision, and control. In this regard, predictive maintenance (PdM) is a recent preventive maintenance approach consisting of improving the performance as well as the efficacy of the manufacturing process by ensuring sustainable operational management.
Predictive maintenance (PdM) for smart production is linked with manufacturing intelligence supported by artificial intelligence (AI). Since Induction motors constitute the primary power source within the industrial production environment, their maintenance, in addition to early fault detection and diagnosis (FD/D), is a crucial process. Moreover, data-driven PdM can also effectively make use of machine data acquired via multiple sensors in order to predict possible faults, avoid machine failures, and monitor the health condition of machines. The robustness and reliability of PdM for industrial production systems have been accentuated by recent advances in the domain of deep learning (DL) and machine learning (ML), further enhancing the reliability and robustness of data-driven PdM.
Latest Developments in Induction Motors – Revolutionizing the Sustainable Future of Automation
While the concept of mechanical motion from an electrical current source is not new, the discoveries of the past lay an effective groundwork for advanced motor developments in the automotive industry. According to the International Energy Agency (IEA), electric motors contribute to nearly 40% of the overall electricity consumption globally, with industries accounting for the highest share.
Aligning with this, recent developments in induction motor technology have led to remarkable advancements in energy efficiency, cost reduction, and performance. For example, the use of advanced control techniques, such as vector control and sensorless control, has facilitated increased precision and accuracy in the operation of induction motors. The development of high-efficiency motors and the use of materials like rare earth metals, on the other hand, have also played a key role in improving the overall performance of induction motors. Additionally, the adoption of new manufacturing techniques, such as 3D printing, has enabled the creation of custom-designed induction motors that can be tailored to specific application requirements.
The integration of renewable energy sources into induction motor systems has also been a focus of recent research, as the use of such systems can significantly reduce carbon emissions and improve overall energy efficiency. The advancement of digital technologies, such as IoT and AI-based control systems, makes it possible to monitor and control the performance of induction motors in real time, leading to improved reliability and lifespan of these motors.
As induction motor technology continues to evolve and improve, these advancements are set to play a crucial role in the transition toward a more sustainable and energy-efficient future. Subsequently, these factors are also projected to present leading players operating in the global induction motors market, such as ABB Ltd, Regal Beloit Corporation, Ametek, etc., with lucrative growth opportunities during the forecast period.
What are the disadvantages of induction motors?
A main disadvantage of induction motors is that they draw higher inrush currents resulting in huge momentary voltage dip while starting. Moreover, in addition to working under lagging power factors, they also operate at the very worst power factor (approximately 0.3 to 0.5 lagging) during lighter loads.
What are some of the key applications of three-phase induction motors?
Some of the most common applications of three-phase induction motors include lathes, pumps and submersibles, grinding machines, large capacity exhaust fans, lifts and cranes, oil extracting mills, hoists, etc.