synchronous machine

简明释义

同步电机

英英释义

例句

1.The power plant uses a synchronous machine to generate electricity efficiently.

发电厂使用同步机器高效地发电。

2.Engineers often prefer a synchronous machine for its high efficiency in converting mechanical energy to electrical energy.

工程师们通常更喜欢使用同步机器，因为它在将机械能转换为电能方面效率高。

3.A synchronous machine can operate at a constant speed regardless of the load applied.

同步机器可以在施加负载时保持恒定速度。

4.In industrial applications, a synchronous machine can provide stable speed control.

在工业应用中，同步机器可以提供稳定的速度控制。

5.The synchronous machine is commonly used in hydroelectric power stations.

同步机器通常用于水电站。

作文

A synchronous machine is an essential component in the field of electrical engineering, primarily used for converting mechanical energy into electrical energy or vice versa. These machines operate at a constant speed, which is directly related to the frequency of the electrical supply. The concept of a synchronous machine is crucial for understanding how electricity is generated and distributed in modern power systems. The basic principle behind a synchronous machine involves the interaction between magnetic fields. It consists of a rotor and a stator. The rotor is the rotating part, while the stator remains stationary. When alternating current (AC) flows through the stator windings, it creates a rotating magnetic field. This rotating field induces a current in the rotor, causing it to turn. For a synchronous machine, the rotor must rotate at the same speed as the rotating magnetic field produced by the stator. This synchronization is what gives the machine its name.One of the key advantages of a synchronous machine is its ability to maintain a constant speed regardless of the load conditions. This characteristic makes it particularly useful in applications where precise speed control is required, such as in generators for hydroelectric plants or in large industrial motors. Unlike asynchronous machines, which can experience slip between the rotor speed and the magnetic field speed, a synchronous machine operates efficiently without any slip, leading to improved performance and reliability.In addition to their operational efficiency, synchronous machines also have the capability to operate at leading or lagging power factors. This feature allows them to improve the overall power factor of the electrical system, which is beneficial for reducing losses in transmission lines and enhancing the stability of the power grid. By adjusting the excitation of the rotor, operators can control the reactive power output of the synchronous machine, making it a versatile tool in power system management.However, synchronous machines are not without their challenges. They require a more complex control system compared to asynchronous machines, particularly for maintaining synchronization under varying load conditions. Additionally, the construction of a synchronous machine is often more intricate and expensive, which can be a limiting factor for some applications. Despite these challenges, the benefits they offer in terms of efficiency and power quality make them a preferred choice in many industrial and utility applications.In conclusion, understanding the operation and advantages of a synchronous machine is vital for anyone involved in the field of electrical engineering. Its role in generating and managing electrical energy cannot be overstated. As technology continues to advance, the importance of synchronous machines will likely grow, especially in the context of renewable energy sources and smart grid technologies. Their ability to provide stable and reliable power makes them indispensable in our increasingly electrified world.

同步机是电气工程领域中的一个重要组成部分，主要用于将机械能转换为电能或反之亦然。这些机器以恒定的速度运行，该速度与电源的频率直接相关。理解同步机的概念对于理解现代电力系统中电力的生成和分配至关重要。同步机的基本原理涉及磁场之间的相互作用。它由转子和定子组成。转子是旋转部分，而定子保持静止。当交流电流（AC）流过定子绕组时，会产生一个旋转磁场。这个旋转的磁场在转子中感应出电流，使其转动。对于同步机，转子必须以与定子产生的旋转磁场相同的速度旋转。这种同步性赋予了机器其名称。同步机的一个主要优点是能够在负载条件变化时保持恒定速度。这一特性使其在需要精确速度控制的应用中非常有用，例如水电站的发电机或大型工业电动机。与异步机不同，异步机在转子速度和磁场速度之间可能会出现滑差，而同步机则高效地无滑差运行，从而提高了性能和可靠性。除了操作效率外，同步机还具有在滞后或超前功率因数下运行的能力。这个特性使它们能够改善电气系统的整体功率因数，这对于减少输电线损耗和增强电网的稳定性是有益的。通过调整转子的励磁，操作员可以控制同步机的无功功率输出，使其成为电力系统管理中的多功能工具。然而，同步机并非没有挑战。与异步机相比，它们需要更复杂的控制系统，特别是在变化的负载条件下保持同步。此外，同步机的结构通常更复杂且成本更高，这可能限制某些应用的使用。尽管存在这些挑战，但它们在效率和电力质量方面提供的好处使其在许多工业和公用事业应用中成为首选。总之，理解同步机的运行和优点对于任何参与电气工程领域的人来说都是至关重要的。它在电力生成和管理中的作用不可低估。随着技术的不断进步，同步机的重要性可能会增长，尤其是在可再生能源和智能电网技术的背景下。它们提供稳定可靠的电力，使其在我们日益电气化的世界中不可或缺。