active power

简明释义

有效功率

英英释义

例句

1.To optimize energy consumption, we need to monitor the active power 有功功率 usage in real-time.

为了优化能耗，我们需要实时监测有功功率的使用情况。

2.The active power 有功功率 factor of this motor is quite high, indicating efficient operation.

这台电动机的有功功率因数相当高，表明其运行效率良好。

3.In an AC circuit, active power 有功功率 is measured in watts.

在交流电路中，有功功率以瓦特为单位进行测量。

4.Reducing active power 有功功率 losses can greatly improve the efficiency of the system.

减少有功功率损耗可以大大提高系统效率。

5.The generator produces a constant amount of active power 有功功率 to supply the electrical grid.

发电机产生恒定的有功功率以供给电网。

作文

In the realm of electrical engineering, understanding the concept of active power is crucial for both professionals and students alike. Active power refers to the actual power that is consumed by electrical devices to perform useful work. It is measured in watts (W) and represents the energy that is converted into a form that can be utilized by appliances, machines, and systems. This contrasts with reactive power, which does not contribute to productive work but is necessary for maintaining the voltage levels in an electrical system.When we talk about active power, we often encounter the term 'real power.' This is because active power is the real component of power that can be harnessed to accomplish tasks such as lighting a bulb, running a motor, or powering a computer. In an alternating current (AC) circuit, the relationship between active power, reactive power, and apparent power can be illustrated using the power triangle. The power triangle visually represents how these different types of power are interrelated, helping us to understand the efficiency of electrical systems.The formula for calculating active power in an AC circuit is given by P = VI cos(ϕ), where P is the active power, V is the voltage, I is the current, and cos(ϕ) is the power factor. The power factor is a dimensionless number between 0 and 1 that indicates how effectively the current is being converted into useful work. A higher power factor signifies a more efficient system, meaning that a greater proportion of the power supplied is being used effectively.One of the significant implications of active power is its impact on energy bills. Utility companies often charge customers based on the amount of active power consumed. Therefore, understanding how to manage and optimize active power usage can lead to substantial cost savings. For instance, using energy-efficient appliances can reduce the active power demand, thereby lowering electricity costs. Additionally, industries can implement power factor correction techniques to minimize wasted energy and improve overall efficiency.Moreover, the importance of active power extends beyond individual households and businesses. In large-scale power generation and distribution systems, maintaining an adequate supply of active power is essential for grid stability. Power plants must generate sufficient active power to meet the demands of consumers while ensuring that the system operates reliably and efficiently. Any imbalance between supply and demand can lead to outages or equipment damage, highlighting the need for constant monitoring and management of active power levels.In conclusion, active power plays a vital role in our daily lives, from the appliances we use to the broader electrical grid that powers our communities. By understanding the principles behind active power and its implications, individuals and organizations can make informed decisions that enhance energy efficiency, reduce costs, and contribute to a more sustainable future. As technology continues to evolve, the significance of managing active power will only grow, making it an essential topic for anyone involved in the fields of engineering, energy management, and environmental sustainability.

在电气工程领域，理解“有功功率”的概念对于专业人士和学生来说至关重要。“有功功率”是指电气设备消耗的实际功率，用于执行有用的工作。它以瓦特（W）为单位，代表被转换为可供家电、机器和系统使用的能量。这与无功功率形成对比，无功功率并不贡献于生产性工作，但对于维持电力系统中的电压水平是必要的。当我们谈论“有功功率”时，常常会遇到“实际功率”这一术语。这是因为“有功功率”是可以用于完成任务的功率的真实组成部分，例如点亮灯泡、运行电动机或为计算机供电。在交流（AC）电路中，“有功功率”、无功功率和视在功率之间的关系可以使用功率三角形来说明。功率三角形直观地表示了这些不同类型的功率是如何相互关联的，帮助我们理解电气系统的效率。在交流电路中计算“有功功率”的公式为 P = VI cos(ϕ)，其中 P 是“有功功率”，V 是电压，I 是电流，而 cos(ϕ) 是功率因数。功率因数是一个介于 0 和 1 之间的无量纲数，表示电流转化为有用工作的有效性。更高的功率因数意味着系统更高效，这意味着供应的功率中有更大比例被有效利用。“有功功率”的一个重要影响是它对电费的影响。公用事业公司通常根据消费者消耗的“有功功率”收费。因此，理解如何管理和优化“有功功率”的使用可以带来显著的成本节约。例如，使用节能电器可以减少“有功功率”需求，从而降低电费。此外，工业可以实施功率因数校正技术，以最小化能源浪费并提高整体效率。此外，“有功功率”的重要性不仅限于家庭和企业。在大规模的发电和配电系统中，保持足够的“有功功率”供应对于电网的稳定性至关重要。发电厂必须生成足够的“有功功率”以满足消费者的需求，同时确保系统可靠和高效地运行。供应和需求之间的任何失衡都可能导致停电或设备损坏，这突显了对“有功功率”水平进行持续监测和管理的必要性。总之，“有功功率”在我们的日常生活中发挥着至关重要的作用，从我们使用的电器到为社区供电的更广泛电网。通过理解“有功功率”背后的原理及其影响，个人和组织可以做出明智的决策，提高能源效率，降低成本，并为更可持续的未来做出贡献。随着技术的不断发展，管理“有功功率”的重要性只会增加，使其成为任何参与工程、能源管理和环境可持续性领域的人都必须关注的主题。