asynchronous machine

简明释义

异步电机

英英释义

例句

1.The speed of an asynchronous machine can vary depending on the load applied to it.

异步电机的速度会根据施加的负载而变化。

2.The asynchronous machine is widely used in industrial applications due to its robustness.

由于其稳健性，异步电机在工业应用中被广泛使用。

3.Many electric vehicles use an asynchronous machine for propulsion due to its high efficiency.

许多电动汽车使用异步电机作为动力源，因为它具有高效率。

4.In a wind turbine, the asynchronous machine can efficiently convert wind energy into electrical energy.

在风力涡轮机中，异步电机可以高效地将风能转化为电能。

5.An asynchronous machine operates without needing a direct connection to the power supply.

异步电机的运行不需要与电源直接连接。

作文

In the realm of electrical engineering, the term asynchronous machine refers to a type of electric motor or generator that operates without synchronizing its rotational speed with the frequency of the supply current. This characteristic is what sets it apart from synchronous machines, which maintain a constant speed determined by the supply frequency. Understanding the principles and applications of asynchronous machines is crucial for anyone interested in modern electrical systems and their efficiency. The most common type of asynchronous machine is the induction motor, which is widely used in various industrial applications due to its robustness and simplicity. Induction motors are favored because they require minimal maintenance and can operate effectively in harsh environments. The operation of an induction motor relies on electromagnetic induction, where a rotating magnetic field induces a current in the rotor, causing it to turn. This process allows the motor to run at a speed that is slightly less than the synchronous speed, hence the term 'asynchronous.' One of the significant advantages of asynchronous machines is their ability to handle variable loads efficiently. In many industrial settings, the load on a motor can fluctuate significantly. The design of induction motors allows them to adapt to these changes without requiring complex control systems. This adaptability makes asynchronous machines ideal for applications such as conveyor belts, pumps, and fans, where the demand for power can vary widely throughout the day. Moreover, asynchronous machines are generally more economical than synchronous machines. They do not require additional components like slip rings or brushes, which can increase maintenance costs and complicate the design. This cost-effectiveness has led to the widespread adoption of asynchronous machines in various sectors, including manufacturing, transportation, and HVAC systems. However, asynchronous machines are not without their drawbacks. One of the primary concerns is their efficiency. While they are robust and versatile, they can be less efficient than synchronous machines, particularly at lower loads. This inefficiency can lead to higher energy consumption and operational costs in some scenarios. Engineers and designers must consider these factors when selecting the appropriate motor for a specific application. In recent years, advancements in technology have led to the development of more efficient asynchronous machines. Innovations such as variable frequency drives (VFDs) allow for better control of motor speed and torque, improving overall performance and energy efficiency. These developments highlight the ongoing relevance of asynchronous machines in the context of sustainable energy practices and the push for greener technologies. In conclusion, the asynchronous machine is a fundamental component of modern electrical engineering, playing a crucial role in various applications across different industries. Its unique operational characteristics, coupled with its cost-effectiveness and adaptability, make it a preferred choice for many engineers. As technology continues to evolve, the importance of understanding and optimizing asynchronous machines will only grow, ensuring their place in the future of electrical systems. Ultimately, grasping the concept of asynchronous machines not only enhances our knowledge of electrical engineering but also prepares us for the challenges and innovations that lie ahead in this dynamic field.

在电气工程领域，术语异步机器指的是一种电动机或发电机，它的运转速度与电源电流的频率不同步。这一特性使其与同步机器有所区别，后者的转速保持在由供电频率决定的恒定值。理解异步机器的原理和应用对于任何对现代电气系统及其效率感兴趣的人来说都是至关重要的。最常见的异步机器类型是感应电动机，由于其坚固性和简单性，广泛应用于各种工业场合。感应电动机受到青睐，因为它们需要最少的维护，并且可以在恶劣环境中有效运行。感应电动机的运行依赖于电磁感应，其中旋转的磁场在转子中感应出电流，使其转动。这个过程使得电动机以略低于同步速度的速度运行，因此称为“异步”。异步机器的一个显著优点是它们能够高效地处理可变负载。在许多工业环境中，电动机上的负载可能会显著波动。感应电动机的设计使其能够适应这些变化，而无需复杂的控制系统。这种适应性使得异步机器非常适合用于输送带、泵和风扇等应用，在这些应用中，电力需求可能会在一天内大幅波动。此外，异步机器通常比同步机器更经济。它们不需要滑环或刷子等额外组件，这可能会增加维护成本并使设计复杂化。这种成本效益导致异步机器在制造、运输和暖通空调系统等各个行业被广泛采用。然而，异步机器也并非没有缺点。主要问题之一是它们的效率。虽然它们坚固且多功能，但在较低负载下，它们的效率可能低于同步机器。这种低效可能会导致在某些情况下能源消耗和运营成本的增加。工程师和设计师在选择特定应用的适当电动机时，必须考虑这些因素。近年来，技术进步导致了更高效的异步机器的发展。诸如变频驱动器（VFD）等创新使得电动机的速度和扭矩控制更为精准，提高了整体性能和能效。这些发展突显了在可持续能源实践和绿色技术推动背景下，理解和优化异步机器的重要性。总之，异步机器是现代电气工程的基本组成部分，在各个行业的各种应用中扮演着关键角色。其独特的操作特性，加上其成本效益和适应性，使其成为许多工程师的首选。随着技术的不断发展，理解和优化异步机器的重要性只会增加，确保它们在未来电气系统中的地位。最终，掌握异步机器的概念不仅增强了我们对电气工程的理解，还为我们在这一动态领域面临的挑战和创新做好了准备。