polyphase asynchronous motor

简明释义

多相异步电动机

英英释义

例句

1.A polyphase asynchronous motor is often preferred in industrial applications due to its durability.

在工业应用中，多相异步电动机因其耐用性而被广泛选择。

2.Maintenance of a polyphase asynchronous motor is crucial for prolonging its lifespan.

对多相异步电动机的维护对延长其使用寿命至关重要。

3.The factory installed a new polyphase asynchronous motor to improve energy efficiency.

工厂安装了一台新的多相异步电动机以提高能效。

4.In robotics, the use of a polyphase asynchronous motor allows for precise control of movement.

在机器人技术中，使用多相异步电动机可以实现精确的运动控制。

5.The polyphase asynchronous motor operates efficiently under varying load conditions.

多相异步电动机在不同负载条件下运行效率高。

作文

The world of electrical engineering is vast and intricate, with numerous types of machines designed to convert electrical energy into mechanical energy. One of the most significant inventions in this field is the polyphase asynchronous motor, which has revolutionized industrial applications. The polyphase asynchronous motor (多相异步电动机) operates on the principle of electromagnetic induction, where alternating current (AC) is used to generate a rotating magnetic field. This technology has become a cornerstone in various industries due to its efficiency and reliability.Understanding the operation of a polyphase asynchronous motor requires knowledge of its components and principles. The motor typically consists of a stator and a rotor. The stator is the stationary part that generates the magnetic field, while the rotor is the rotating component that converts electrical energy into mechanical energy. In a polyphase asynchronous motor, multiple phases of AC are supplied to the stator, creating a rotating magnetic field that induces current in the rotor.One of the key characteristics of the polyphase asynchronous motor is its asynchronous operation. This means that the rotor does not rotate at the same speed as the magnetic field produced by the stator. Instead, there is a difference in speed known as 'slip', which is essential for the motor's operation. The slip allows the rotor to catch up with the rotating magnetic field, generating torque that drives the mechanical load attached to the motor.The advantages of using a polyphase asynchronous motor are numerous. Firstly, they are known for their robustness and durability. Unlike synchronous motors, which require additional components like brushes and commutators, polyphase asynchronous motors have fewer moving parts, making them less prone to wear and tear. This results in lower maintenance costs and longer operational life.Moreover, polyphase asynchronous motors can operate efficiently under varying load conditions. They can handle overloads without significant performance degradation, making them ideal for applications such as conveyor systems, pumps, and fans. Their ability to start under load without stalling is another advantage that enhances their usability in industrial settings.In addition to their mechanical advantages, polyphase asynchronous motors are also more energy-efficient compared to single-phase motors. The use of multiple phases allows for a smoother power delivery, reducing the chances of voltage drops and improving overall system performance. This efficiency is particularly crucial in an era where energy conservation is paramount.However, it is essential to consider the challenges associated with polyphase asynchronous motors. For instance, they require a three-phase power supply, which may not be available in all locations. Additionally, the initial cost of these motors can be higher than that of single-phase alternatives. Nonetheless, the long-term benefits often outweigh these initial drawbacks.In conclusion, the polyphase asynchronous motor (多相异步电动机) stands out as a vital component in modern electrical engineering. Its unique operating principles, combined with its efficiency and durability, make it an ideal choice for a wide range of industrial applications. As technology continues to evolve, the importance of understanding and utilizing polyphase asynchronous motors will only increase, paving the way for innovations in energy use and mechanical design.

电气工程的世界广阔而复杂，设计了许多类型的机器，以将电能转化为机械能。在这个领域中，最重要的发明之一就是多相异步电动机，它彻底改变了工业应用。多相异步电动机（polyphase asynchronous motor）基于电磁感应的原理，利用交流电（AC）产生旋转磁场。这项技术已成为各个行业的基石，因为它的效率和可靠性。理解多相异步电动机的操作需要了解其组件和原理。该电动机通常由定子和转子组成。定子是产生磁场的静止部分，而转子是将电能转化为机械能的旋转组件。在多相异步电动机中，多个相位的交流电被供给定子，产生旋转磁场，从而在转子中感应出电流。多相异步电动机的一个关键特征是其异步操作。这意味着转子并不以与定子产生的磁场相同的速度旋转。相反，存在一个称为“滑差”的速度差，这是电动机操作所必需的。滑差使转子能够追赶旋转的磁场，产生驱动连接到电动机的机械负载的扭矩。使用多相异步电动机的优点有很多。首先，它们以其坚固耐用而闻名。与需要额外组件如刷子和换向器的同步电动机不同，多相异步电动机的活动部件较少，使其不易磨损。这导致维护成本降低和更长的使用寿命。此外，多相异步电动机可以在不同负载条件下高效运行。它们能够在不显著降低性能的情况下处理过载，这使它们非常适合用于传送系统、泵和风扇等应用。它们在负载下启动而不会停转的能力是增强其在工业环境中可用性的另一个优点。除了机械优势外，多相异步电动机的能效也高于单相电动机。使用多个相位可以实现更平稳的功率传递，减少电压下降的可能性，提高整体系统性能。这种效率在能源节约至关重要的时代尤为重要。然而，需要考虑与多相异步电动机相关的挑战。例如，它们需要三相电源，而这种电源在所有地点可能无法获得。此外，这些电动机的初始成本可能高于单相替代品。然而，长期收益常常超过这些初始缺点。总之，多相异步电动机（polyphase asynchronous motor）作为现代电气工程中的重要组成部分脱颖而出。其独特的操作原理，加上其效率和耐用性，使其成为各种工业应用的理想选择。随着技术的不断发展，理解和利用多相异步电动机的重要性将只会增加，为能源利用和机械设计的创新铺平道路。