fractional pitch winding

简明释义

分距绕组

英英释义

例句

1.In our latest project, we implemented fractional pitch winding to improve performance.

在我们最新的项目中，我们实施了分数绕组以提高性能。

2.Engineers often choose fractional pitch winding for applications requiring lower noise levels.

工程师通常选择分数绕组用于需要较低噪音水平的应用。

3.The fractional pitch winding technique allows for a more compact design of electric machines.

采用分数绕组技术可以使电机设计更为紧凑。

4.Using fractional pitch winding in transformers can reduce harmonic distortion.

在变压器中使用分数绕组可以减少谐波失真。

5.The design of the motor incorporates fractional pitch winding, which enhances its efficiency.

电机的设计采用了分数绕组，这提高了其效率。

作文

In the world of electrical engineering, particularly in the design and construction of electric machines, the term fractional pitch winding refers to a specific winding technique used in the stators and rotors of motors and generators. This method involves dividing the coil into segments that are less than one full pole pitch in length. The primary purpose of utilizing fractional pitch winding is to reduce harmonics in the machine's operation, improve efficiency, and minimize the size of the machine while maintaining its performance characteristics.To understand why fractional pitch winding is important, we first need to grasp the concept of pole pitch. The pole pitch is defined as the distance between two consecutive poles of the magnetic field in a machine. In conventional winding techniques, the coils are wound to cover one full pole pitch, leading to certain inherent inefficiencies. However, with fractional pitch winding, coils can be designed to occupy fractional portions of the pole pitch, which allows for better distribution of the magnetic field.One of the main advantages of fractional pitch winding is the reduction of cogging torque, which is a common issue in electric machines. Cogging torque occurs due to the interaction between the permanent magnets and the slots of the stator. By implementing fractional pitch winding, engineers can achieve smoother torque profiles, resulting in better performance and reduced vibrations during operation. This is particularly beneficial in applications where precision and quiet operation are crucial, such as in robotics or aerospace technologies.Additionally, fractional pitch winding contributes to improved thermal performance. Traditional windings can lead to hot spots within the machine due to uneven heating, but the fractional approach allows for a more uniform heat distribution across the winding. This not only enhances the longevity of the motor but also increases its reliability, making it suitable for demanding environments.Moreover, fractional pitch winding can also enable the design of smaller machines without sacrificing performance. As industries continue to push for compact and lightweight solutions, this winding technique provides a pathway to achieving these goals. For instance, in electric vehicles where weight and space are critical factors, employing fractional pitch winding can lead to significant reductions in size while still delivering the necessary power output.However, the implementation of fractional pitch winding does come with its challenges. The complexity of the winding process increases, requiring more meticulous design and manufacturing practices. Additionally, the control systems may need to be adapted to accommodate the unique characteristics of machines using this type of winding. Engineers must ensure that the benefits outweigh the added complexities when deciding whether to use fractional pitch winding in their designs.In conclusion, fractional pitch winding is a sophisticated technique that plays a vital role in the advancement of electric machine technology. By reducing harmonics, improving efficiency, minimizing cogging torque, and enhancing thermal performance, this winding method is becoming increasingly popular in various applications. As technology continues to evolve, the importance of understanding and mastering techniques like fractional pitch winding will only grow, paving the way for more efficient and powerful electric machines in the future.

在电气工程的世界中，特别是在电动机和发电机的设计与构造中，术语分数绕组指的是一种特定的绕组技术，应用于电动机和发电机的定子和转子。这种方法涉及将线圈分成小于一个完整极距长度的段。使用分数绕组的主要目的是减少机器运行中的谐波，提高效率，并在保持性能特性的同时最小化机器的尺寸。要理解分数绕组为何重要，我们首先需要掌握极距的概念。极距被定义为机器中两个连续磁极之间的距离。在传统的绕组技术中，线圈被绕制到覆盖一个完整的极距，从而导致某些固有的低效。然而，通过分数绕组，线圈可以设计为占据极距的分数部分，这允许更好地分布磁场。分数绕组的主要优点之一是减少齿槽转矩，这是电动机中的一个常见问题。齿槽转矩是由于永磁体与定子的槽之间的相互作用而发生的。通过实施分数绕组，工程师可以实现更平滑的转矩曲线，从而提高性能并减少运行过程中的振动。这在精密和安静操作至关重要的应用中尤为有利，例如在机器人或航空航天技术中。此外，分数绕组还有助于改善热性能。传统的绕组可能会导致机器内部出现热点，因加热不均匀，而分数方法则允许绕组中的热量更均匀地分布。这不仅增强了电动机的寿命，还提高了其可靠性，使其适用于苛刻的环境。此外，分数绕组还可以使设计出更小的机器，而不牺牲性能。随着各行业不断追求紧凑和轻量化的解决方案，这种绕组技术提供了一条实现这些目标的途径。例如，在电动车辆中，重量和空间是关键因素，采用分数绕组可以在不降低所需功率输出的情况下显著减小体积。然而，实施分数绕组确实带来了挑战。绕组过程的复杂性增加，需要更细致的设计和制造实践。此外，控制系统可能需要进行调整，以适应使用这种绕组类型的机器的独特特性。工程师必须确保在决定是否在设计中使用分数绕组时，收益超过增加的复杂性。总之，分数绕组是一种复杂的技术，在电动机技术的进步中发挥着重要作用。通过减少谐波、提高效率、最小化齿槽转矩和增强热性能，这种绕组方法在各种应用中越来越受欢迎。随着技术的不断发展，理解和掌握像分数绕组这样的技术的重要性只会增加，为未来更高效、更强大的电动机铺平道路。