shunt excitation

简明释义

并励

英英释义

例句

1.For large power plants, shunt excitation 并联励磁 is preferred due to its simplicity and reliability.

对于大型电厂，由于其简单性和可靠性，通常优先选择shunt excitation 并联励磁。

2.The use of shunt excitation 并联励磁 helps in reducing voltage fluctuations during load changes.

使用shunt excitation 并联励磁有助于减少负荷变化时的电压波动。

3.The control system adjusts the shunt excitation 并联励磁 based on real-time load demands.

控制系统根据实时负荷需求调整shunt excitation 并联励磁。

4.In a shunt excitation 并联励磁 system, the field current is directly proportional to the terminal voltage.

在shunt excitation 并联励磁系统中，励磁电流与端电压成正比。

5.The generator operates efficiently under shunt excitation 并联励磁, allowing for stable voltage output.

发电机在shunt excitation 并联励磁下高效运行，确保了稳定的电压输出。

作文

In the field of electrical engineering, understanding various excitation methods is crucial for the effective operation of generators and motors. One such method is known as shunt excitation, which plays a significant role in the functioning of synchronous machines. This technique involves connecting the excitation winding in parallel, or 'shunt', with the armature winding of the machine. The primary advantage of shunt excitation is its ability to maintain a relatively constant voltage output, even under varying load conditions.The principle behind shunt excitation lies in how the excitation current is supplied to the field winding. In this configuration, the field winding receives a portion of the output voltage from the armature, allowing it to generate a magnetic field that interacts with the armature winding. This interaction is essential for producing the electromotive force (EMF) required for the generator's operation. As the load on the generator changes, the current flowing through the armature also varies, but the shunt connection ensures that the field strength remains stable, thus providing consistent voltage levels.One of the key benefits of using shunt excitation is its simplicity and reliability. Since the excitation system is directly connected to the output, it does not require complex control systems to regulate the voltage. This makes it an ideal choice for applications where quick adjustments and stable performance are necessary. For instance, in power plants, shunt excitation systems can efficiently respond to fluctuations in demand, ensuring that the supply of electricity remains steady.However, there are limitations to shunt excitation that engineers must consider. One of the main drawbacks is that it may not provide sufficient voltage regulation under certain conditions, particularly when the load is significantly increased. In such cases, the generator may experience voltage drops, leading to potential operational issues. To mitigate this, additional components such as voltage regulators can be integrated into the system to enhance performance.Furthermore, the efficiency of shunt excitation can be affected by factors such as temperature and wear of the components over time. Regular maintenance and monitoring are essential to ensure that the excitation system continues to function optimally. Engineers must also be aware of the specific requirements of the application to determine whether shunt excitation is the most suitable choice or if alternative excitation methods, such as series or compound excitation, would be more effective.In conclusion, shunt excitation is a vital concept in electrical engineering that provides a straightforward and reliable means of maintaining voltage stability in generators and synchronous machines. While it has its advantages, such as simplicity and effectiveness in steady-state conditions, engineers must also recognize its limitations and be prepared to implement supplementary measures when necessary. By understanding the principles and applications of shunt excitation, professionals can optimize the performance of electrical systems and contribute to more efficient energy generation and distribution.

在电气工程领域，理解各种励磁方法对于发电机和电动机的有效运行至关重要。其中一种方法被称为分流励磁，在同步机器的功能中发挥着重要作用。这种技术涉及将励磁绕组与机器的电枢绕组并联连接，即“分流”。分流励磁的主要优点是能够在负载条件变化时保持相对恒定的电压输出。分流励磁的原理在于如何将励磁电流供应给场绕组。在这种配置中，场绕组从电枢输出电压中接收一部分电压，使其产生一个与电枢绕组相互作用的磁场。这种相互作用对于产生发电机操作所需的电动势（EMF）至关重要。随着发电机负载的变化，流经电枢的电流也会变化，但分流连接确保了场强度保持稳定，从而提供一致的电压水平。使用分流励磁的一个关键好处是其简单性和可靠性。由于励磁系统直接连接到输出，它不需要复杂的控制系统来调节电压。这使其成为在快速调整和稳定性能必要的应用中的理想选择。例如，在发电厂中，分流励磁系统可以有效地响应需求波动，确保电力供应保持稳定。然而，工程师必须考虑分流励磁的局限性。主要缺点之一是它可能在某些条件下无法提供足够的电压调节，特别是在负载显著增加时。在这种情况下，发电机可能会经历电压下降，导致潜在的操作问题。为此，可以将额外的组件如电压调节器集成到系统中，以增强性能。此外，分流励磁的效率可能会受到温度和组件随时间磨损等因素的影响。定期维护和监控对于确保励磁系统继续以最佳状态运行至关重要。工程师还必须意识到应用的具体要求，以确定分流励磁是否是最合适的选择，或者是否其他励磁方法，如串励或复合励磁，更为有效。总之，分流励磁是电气工程中的一个重要概念，为发电机和同步机器维持电压稳定提供了一种简单可靠的方法。尽管它在稳态条件下具有简单性和有效性等优点，但工程师还必须认识到其局限性，并准备在必要时实施补充措施。通过理解分流励磁的原理和应用，专业人员可以优化电气系统的性能，为更高效的能源生成和分配做出贡献。