polyphase

简明释义

英[ˈpɒlɪfeɪz]美[ˈpɑːliˌfeɪz]

adj. 多级的；（电气设备、电路）多相的

英英释义

单词用法

同义词

反义词

例句

1.The synchronous hysteresis motor consists of a polyphase-wound stator and a magnetically hard rotor.

同步磁带电动机由一个多相缠绕的定子和一个硬磁转子所组成。

2.Compared with traditional direct implementation and folded filter, polyphase implementation has the advantage of requiring fewer chip resources.

与传统的直接实现形式和折叠滤波器等改进形式相比，多相形式具有占用资源少的优点。

3.The paper analyses the commutation processes in polyphase brushless DC generators.

本文分析了多相无刷直流发电机的换向过程。

4.This machine is a new kind of generator which comprises DC armature winding connected with a polyphase full wave rectifier bridge.

此发电机是一种新型发电机，它由直流机电枢绕组外接多相全波整流桥组成。

5.Note the "polyphase" option on the end of the SoX command. This is important to preserve the pitch of the file while altering its sample rate.

注意SoX命令结尾的“polyphase”选项，在改变文件采样率时该选项对于保存文件的基调非常重要。

6.It is then subject to such mathematical indignities as wavelet decomposition, multi-resolution Fourier analysis, polyphase filtering and discrete cosine transformation.

接下来它还要经过一些数学处理程序，比如小波分解，多重分辨率傅立叶分析，多相过滤，离散余弦变换等。

7.The electrical engineer designed a new polyphase 多相 system to improve the efficiency of power distribution.

电气工程师设计了一种新的多相系统，以提高电力分配的效率。

8.Using a polyphase 多相 system can reduce electrical losses during transmission.

使用多相系统可以减少传输过程中的电能损耗。

9.The polyphase 多相 transformer allows for better voltage regulation in electrical grids.

该多相变压器允许电网中的更好电压调节。

10.In a polyphase 多相 motor, multiple phases are used to create a rotating magnetic field.

在多相电机中，使用多个相位来产生旋转磁场。

11.The advantages of a polyphase 多相 supply include smoother operation and higher efficiency.

使用多相供电的优点包括更平稳的运行和更高的效率。

作文

In the realm of electrical engineering, the term polyphase refers to a system that uses multiple alternating currents or phases. This concept is crucial for the efficient generation, transmission, and utilization of electrical power. A polyphase system typically consists of three or more phases, which allows for a more balanced load and reduced losses in the electrical system. One of the most common forms of polyphase systems is the three-phase system, which is widely used in industrial applications due to its efficiency and reliability.The advantages of using a polyphase system are manifold. Firstly, it provides a smoother and more continuous power supply compared to single-phase systems. This is because the multiple phases ensure that the power delivery is more consistent, reducing fluctuations that can lead to equipment damage or inefficiency. Secondly, polyphase systems allow for smaller and lighter motors and transformers, as they can produce more power with less current. This results in lower heat generation and improved performance.Additionally, polyphase systems are more efficient in terms of energy usage. When electrical power is generated and transmitted, losses occur due to resistance in the wires. In a polyphase system, the current is divided among the phases, which reduces the overall current flowing through each conductor. This leads to lower resistive losses and a more efficient power delivery mechanism.The implementation of polyphase systems can be seen in various applications. For instance, in large industrial plants, three-phase motors are used extensively for driving heavy machinery. These motors can start under full load without drawing excessive current, making them ideal for operations that require high torque at startup. Moreover, in power transmission, polyphase systems enable the use of higher voltages, which further reduces transmission losses over long distances.Despite the clear benefits, there are also challenges associated with polyphase systems. For example, the complexity of the wiring and the need for specialized equipment can increase installation costs. Additionally, not all electrical devices are designed to operate on polyphase systems, which may necessitate the use of converters or other equipment to interface with single-phase devices. However, the long-term benefits often outweigh these initial challenges, particularly in environments where efficiency and reliability are paramount.In conclusion, the concept of polyphase systems is integral to modern electrical engineering. By utilizing multiple phases, these systems enhance the efficiency and reliability of power generation and distribution. As technology continues to advance, the role of polyphase systems will likely become even more significant, paving the way for innovations in energy management and consumption. Understanding the principles and applications of polyphase systems is essential for anyone involved in the field of electrical engineering, as it lays the groundwork for developing more efficient and sustainable energy solutions.

在电气工程领域，术语polyphase指的是一种使用多个交流电或相位的系统。这个概念对于电力的高效生成、传输和利用至关重要。polyphase系统通常由三个或更多相位组成，这使得负载更加平衡，并减少电力系统中的损耗。最常见的polyphase系统形式是三相系统，由于其效率和可靠性，广泛用于工业应用。使用polyphase系统的优势是多方面的。首先，与单相系统相比，它提供了更平稳和连续的电力供应。这是因为多个相位确保电力交付更加一致，减少波动，从而导致设备损坏或效率降低。其次，polyphase系统允许使用更小、更轻的电动机和变压器，因为它们可以用更少的电流产生更多的功率。这导致发热量降低，性能提高。此外，polyphase系统在能源使用方面更为高效。当电力被生成和传输时，由于导线中的电阻会发生损耗。在polyphase系统中，电流在各个相位之间分配，这减少了每根导体上流动的总电流。这导致电阻损失降低，使电力输送机制更加高效。polyphase系统的实施可以在各种应用中看到。例如，在大型工业厂房中，三相电动机被广泛用于驱动重型机械。这些电动机能够在满载下启动，而不会消耗过多电流，非常适合需要高启动扭矩的操作。此外，在电力传输中，polyphase系统使得可以使用更高的电压，从而进一步减少长距离传输中的损失。尽管有明显的好处，但polyphase系统也面临一些挑战。例如，布线的复杂性和对专业设备的需求可能增加安装成本。此外，并非所有电气设备都设计成在polyphase系统上运行，这可能需要使用变换器或其他设备与单相设备接口。然而，从长远来看，这些初始挑战往往不及其带来的长期利益，特别是在效率和可靠性至关重要的环境中。总之，polyphase系统的概念是现代电气工程的核心。通过利用多个相位，这些系统增强了电力生成和分配的效率和可靠性。随着技术的不断进步，polyphase系统的作用可能会变得更加重要，为能源管理和消费的创新铺平道路。理解polyphase系统的原理和应用对于任何参与电气工程领域的人来说都是必不可少的，因为它为开发更高效和可持续的能源解决方案奠定了基础。