separately excited generator

简明释义

他励发电机

英英释义

例句

1.The power plant uses a separately excited generator to ensure stable voltage output.

该发电厂使用独立励磁发电机以确保稳定的电压输出。

2.In renewable energy systems, a separately excited generator can help manage fluctuations in power generation.

在可再生能源系统中，独立励磁发电机可以帮助管理发电波动。

3.The separately excited generator is often used in industrial applications requiring high reliability.

独立励磁发电机通常用于需要高可靠性的工业应用。

4.Maintenance of the separately excited generator is crucial for optimal performance.

对独立励磁发电机的维护对于最佳性能至关重要。

5.Engineers prefer a separately excited generator for its ability to provide precise control over output voltage.

工程师们偏爱独立励磁发电机，因为它能够精确控制输出电压。

作文

In the world of electrical engineering, generators play a crucial role in converting mechanical energy into electrical energy. Among the various types of generators, the separately excited generator stands out due to its unique mechanism of operation and control. Understanding this type of generator requires a closer look at its components, functioning, and applications.A separately excited generator is characterized by its ability to generate electricity independently from the field winding. In this system, the field winding is supplied with current from an external source rather than relying on the armature's output. This separation allows for greater flexibility and control over the generator's performance. By adjusting the field current, engineers can easily manipulate the voltage output, making it suitable for various applications.One of the primary advantages of a separately excited generator is its ability to maintain a stable voltage output under varying load conditions. This stability is essential in many industrial applications where consistent power supply is necessary. For instance, in manufacturing plants, machinery often requires a steady voltage to operate efficiently. If the voltage fluctuates, it can lead to equipment malfunctions or even damage. The separately excited generator mitigates this risk by allowing operators to adjust the field current as needed, ensuring that the voltage remains constant regardless of changes in load.Additionally, the separately excited generator is widely used in applications requiring high starting torque. Since the field current can be adjusted independently, it enables the generator to produce a strong magnetic field, which is essential for starting large motors. This feature makes it particularly useful in applications such as electric locomotives and cranes, where substantial initial power is required to get the machinery moving.Another important aspect of the separately excited generator is its role in excitation systems for synchronous machines. In power plants, synchronous generators are often used to produce electricity at a constant frequency. The excitation system, which includes the separately excited generator, provides the necessary field current to maintain the magnetic field in the rotor. This setup ensures that the generator operates efficiently and reliably within the grid, contributing to the overall stability of the power supply.Despite its advantages, the separately excited generator also has some limitations. One challenge is the need for an external power source to supply the field current. This requirement can complicate the system design and increase costs. Additionally, if the external power source fails, the generator may not operate effectively, leading to downtime in critical applications.In conclusion, the separately excited generator is a vital component in the field of electrical engineering, offering unique benefits such as stable voltage output and high starting torque. Its ability to operate independently from the armature makes it a preferred choice in various industrial applications. However, engineers must also consider its limitations and ensure that proper measures are in place to maintain its functionality. As technology continues to advance, the separately excited generator will undoubtedly remain an important subject of study and application in the pursuit of efficient and reliable electrical power generation.

在电气工程的世界中，发电机在将机械能转化为电能方面发挥着至关重要的作用。在各种类型的发电机中，单独励磁发电机因其独特的操作机制和控制方式而脱颖而出。理解这种类型的发电机需要更深入地了解其组成、工作原理和应用。单独励磁发电机的特点是能够独立于场绕组产生电力。在该系统中，场绕组通过外部电源供电，而不是依赖于电枢的输出。这种分离使得对发电机性能的灵活性和控制性大大增强。通过调整励磁电流，工程师可以轻松操控电压输出，使其适用于各种应用。单独励磁发电机的主要优点之一是能够在负载条件变化时保持稳定的电压输出。这种稳定性在许多工业应用中至关重要，因为一致的电力供应是必需的。例如，在制造工厂中，机器通常需要稳定的电压才能高效运行。如果电压波动，可能会导致设备故障甚至损坏。单独励磁发电机通过允许操作员根据需要调整励磁电流，从而减轻了这一风险，确保电压在负载变化时保持恒定。此外，单独励磁发电机广泛应用于需要高起动扭矩的应用中。由于励磁电流可以独立调整，它使发电机能够产生强大的磁场，这对于启动大型电动机至关重要。这一特性使其在电力机车和起重机等应用中尤为有用，因为这些机械在启动时需要大量初始动力。单独励磁发电机的另一个重要方面是它在同步机器的励磁系统中的作用。在发电厂中，通常使用同步发电机以恒定频率产生电力。励磁系统，包括单独励磁发电机，提供必要的励磁电流，以维持转子中的磁场。这种设置确保发电机在电网中高效可靠地运行，为电力供应的整体稳定性做出贡献。尽管有其优点，单独励磁发电机也存在一些局限性。其中一个挑战是需要外部电源来提供励磁电流。这一要求可能会使系统设计复杂化并增加成本。此外，如果外部电源失效，发电机可能无法有效运行，从而导致关键应用中的停机。总之，单独励磁发电机是电气工程领域的重要组成部分，具有稳定电压输出和高起动扭矩等独特优点。其独立于电枢的运行能力使其成为各种工业应用的首选。然而，工程师还必须考虑其局限性，并确保采取适当措施以维持其功能。随着技术的不断进步，单独励磁发电机无疑将继续成为高效和可靠的电力生成研究和应用的重要课题。