alternating-current generator

简明释义

交流发电机

英英释义

例句

1.The alternating-current generator is essential for providing electricity to homes and businesses.

为了给家庭和企业提供电力，交流发电机是必不可少的。

2.During the storm, the alternating-current generator provided backup power to the hospital.

在暴风雨期间，交流发电机为医院提供了备用电源。

3.In physics class, we learned about the principles behind an alternating-current generator and how it converts mechanical energy into electrical energy.

在物理课上，我们学习了交流发电机背后的原理，以及它是如何将机械能转化为电能的。

4.We need to replace the old alternating-current generator with a more efficient model.

我们需要用更高效的型号替换掉旧的交流发电机。

5.The engineer designed a new alternating-current generator to improve energy efficiency in the power plant.

工程师设计了一种新的交流发电机以提高发电厂的能效。

作文

The invention of the alternating-current generator has revolutionized the way we harness and utilize electrical energy. Unlike direct current (DC), which flows in a single direction, an alternating-current generator produces electricity that alternates in direction, allowing for more efficient transmission over long distances. This technology was developed in the late 19th century and has become the backbone of modern electrical systems.To understand the significance of the alternating-current generator, we must first explore its components and how it operates. At its core, the generator consists of a rotor and a stator. The rotor is a rotating part that moves within a magnetic field, while the stator remains stationary. As the rotor spins, it induces an alternating voltage in the stator windings due to electromagnetic induction. This process converts mechanical energy into electrical energy, which can then be used to power homes, industries, and various devices.One of the key advantages of using an alternating-current generator is its ability to easily transform voltages. By employing transformers, the voltage output from the generator can be increased or decreased as needed. This flexibility is crucial for efficient power distribution, as high voltage is required for long-distance transmission to minimize energy loss, while lower voltages are necessary for safe usage in households and businesses.Furthermore, the development of the alternating-current generator has enabled the widespread use of electric motors. These motors rely on alternating current to function efficiently, powering everything from household appliances to industrial machinery. The compatibility of AC systems with a variety of devices has made it the preferred choice for electrical power distribution around the world.Despite its many benefits, the alternating-current generator is not without challenges. One significant issue is the phenomenon of power factor, which refers to the efficiency with which electrical power is converted into useful work output. In systems with low power factors, more current is required to deliver the same amount of power, leading to increased energy costs and potential strain on the electrical grid.Moreover, the integration of renewable energy sources, such as solar and wind, into the existing power grid poses additional challenges for alternating-current generators. These sources often produce direct current, which must be converted to alternating current for compatibility with the grid. Advances in technology are continuously being made to improve the efficiency of this conversion process.In conclusion, the alternating-current generator has played a pivotal role in shaping our modern electrical landscape. Its ability to generate and distribute electricity efficiently has transformed industries and improved the quality of life for millions worldwide. As we continue to innovate and adapt to new energy demands, understanding the principles and applications of the alternating-current generator will remain essential for future advancements in electrical engineering and sustainable energy solutions.

交流发电机的发明彻底改变了我们利用和使用电能的方式。与单向流动的直流电（DC）不同，交流发电机产生的电力在方向上交替变化，使得长距离传输更加高效。这项技术是在19世纪末开发的，已成为现代电力系统的支柱。要理解交流发电机的重要性，我们必须首先探讨其组成部分及其工作原理。发电机的核心由转子和定子组成。转子是一个在磁场中旋转的部分，而定子则保持静止。当转子旋转时，由于电磁感应，它在定子绕组中诱导出交变电压。这个过程将机械能转换为电能，随后可以用来为家庭、工业和各种设备供电。使用交流发电机的一个关键优势是它能够轻松地变换电压。通过使用变压器，发电机的电压输出可以根据需要增加或减少。这种灵活性对于高效的电力分配至关重要，因为长距离传输需要高电压以最小化能量损失，而家庭和企业则需要较低的电压以确保安全使用。此外，交流发电机的发展使得电动机的广泛使用成为可能。这些电动机依靠交流电高效运作，为从家用电器到工业机械的各种设备提供动力。交流系统与多种设备的兼容性使其成为全球电力分配的首选。尽管有许多好处，交流发电机也面临着挑战。一个显著的问题是功率因数现象，这指的是电力转换为有用工作输出的效率。在功率因数低的系统中，所需电流更多以提供相同的功率，从而导致能源成本增加和对电网的潜在压力。此外，将可再生能源源，如太阳能和风能，整合入现有电网也给交流发电机带来了额外挑战。这些能源通常产生直流电，必须转换为交流电以便与电网兼容。技术的不断进步正在改善这一转换过程的效率。总之，交流发电机在塑造我们现代电力格局中发挥了重要作用。它生成和分配电力的能力高效地改变了工业并改善了全球数百万人的生活质量。随着我们不断创新并适应新的能源需求，理解交流发电机的原理和应用将对未来电气工程和可持续能源解决方案的进步至关重要。