direct-current mains

简明释义

直流电力网

英英释义

例句

1.The solar panels are connected to the direct-current mains (直流电源) to charge the batteries.

太阳能电池板连接到direct-current mains (直流电源)以给电池充电。

2.We need to check if the equipment is compatible with the direct-current mains (直流电源) before installation.

在安装之前，我们需要检查设备是否与direct-current mains (直流电源)兼容。

3.The new factory was designed to operate on direct-current mains (直流电源) to improve energy efficiency.

新工厂的设计采用了direct-current mains (直流电源)以提高能源效率。

4.The technician explained how the direct-current mains (直流电源) can affect the performance of the motor.

技术人员解释了direct-current mains (直流电源)如何影响电动机的性能。

5.Many renewable energy systems use direct-current mains (直流电源) for efficient power distribution.

许多可再生能源系统使用direct-current mains (直流电源)进行高效的电力分配。

作文

In today's world, the importance of electricity cannot be overstated. It powers our homes, businesses, and industries, enabling modern life as we know it. Among the various types of electrical systems, one that is often overlooked is the direct-current mains. Understanding this concept is crucial for anyone interested in electrical engineering or simply looking to deepen their knowledge of how electricity works. Direct current (DC) refers to the flow of electric charge in a single direction, as opposed to alternating current (AC), which periodically reverses direction. The direct-current mains are systems that supply electrical energy in the form of direct current. This type of power distribution is commonly used in specific applications where stable and consistent voltage is required. For instance, many electronic devices, such as computers and batteries, operate on DC power. One of the key advantages of direct-current mains is its efficiency in energy transmission over short distances. In environments where high power loss can occur, such as in low-voltage applications, DC systems are often preferred. Additionally, the use of direct-current mains can simplify the design of circuits since the voltage remains constant, making it easier to manage and control. Moreover, with the rise of renewable energy sources like solar panels, the relevance of direct-current mains has increased significantly. Solar panels generate electricity in the form of direct current, which must be converted to alternating current for use in most homes. However, as technology advances, there is a growing trend towards using DC directly in residential applications, allowing for more efficient energy use and reducing conversion losses. Another area where direct-current mains plays a vital role is in electric vehicles (EVs). These vehicles rely on large battery packs that store energy in the form of direct current. The charging infrastructure for EVs often includes direct-current mains to facilitate faster charging times compared to traditional AC chargers. This shift towards direct current in the automotive industry highlights the increasing recognition of its benefits. Despite its advantages, there are challenges associated with direct-current mains systems. One significant issue is the difficulty of transforming DC voltages. While AC can be easily stepped up or down using transformers, direct current requires more complex circuitry for voltage adjustments. This complexity can lead to higher costs and technical challenges, especially in large-scale power distribution networks. In conclusion, the concept of direct-current mains is essential for understanding modern electrical systems. As technology continues to evolve, the relevance of direct current will likely grow, particularly in renewable energy and electric vehicle applications. By recognizing the advantages and challenges of direct-current mains, we can better appreciate the intricacies of electrical engineering and the future of energy distribution. Understanding these systems not only enhances our technical knowledge but also prepares us for a world increasingly reliant on efficient and sustainable energy solutions.

在当今世界，电力的重要性不容小觑。它为我们的家庭、企业和工业提供动力，使现代生活得以实现。在各种电气系统中，一个常常被忽视的概念是直流电主电源。理解这一概念对于任何对电气工程感兴趣的人或希望加深对电力工作原理了解的人来说都是至关重要的。直流电（DC）是指电荷以单一方向流动，而交流电（AC）则是指电流周期性地反向流动。直流电主电源是以直流电形式供应电能的系统。这种类型的电力分配通常用于需要稳定和一致电压的特定应用。例如，许多电子设备，如计算机和电池，都是在直流电下运行的。直流电主电源的一个关键优势是在短距离内高效传输能量。在低电压应用中，可能会发生高功率损耗的环境中，通常更倾向于使用直流系统。此外，使用直流电主电源可以简化电路设计，因为电压保持恒定，使管理和控制变得更加容易。此外，随着可再生能源如太阳能电池板的兴起，直流电主电源的相关性显著增加。太阳能电池板以直流电的形式发电，这必须转换为交流电才能在大多数家庭中使用。然而，随着技术的进步，越来越多的趋势是直接在住宅应用中使用直流电，从而实现更高效的能源利用，并减少转换损失。直流电主电源在电动汽车（EV）中也发挥着重要作用。这些车辆依赖于以直流电形式存储能量的大型电池组。电动汽车的充电基础设施通常包括直流电主电源，以便实现比传统交流充电器更快的充电时间。这种在汽车工业中向直流电的转变突显了其益处日益受到认可。尽管有其优势，但与直流电主电源系统相关的挑战也存在。其中一个主要问题是转换直流电压的困难。虽然交流电可以通过变压器轻松升高或降低电压，但直流电则需要更复杂的电路进行电压调整。这种复杂性可能导致更高的成本和技术挑战，特别是在大规模电力分配网络中。总之，直流电主电源的概念对于理解现代电气系统至关重要。随着技术的不断发展，直流电的相关性可能会增加，特别是在可再生能源和电动汽车应用中。通过认识到直流电主电源的优势和挑战，我们可以更好地欣赏电气工程的复杂性以及能源分配的未来。理解这些系统不仅增强了我们的技术知识，还为我们准备了一个越来越依赖于高效和可持续能源解决方案的世界。