ПОДДРШКА
Железничкиот сообраќај
Author：ZYG Power Moduleвреме на издавање: 2022-1-3
The development of railway technology
The German motor vehicle technology series, the Canadian mobile car technology series, the French train technology series ans other rail transportation technologies represent the advanced level of the world. China’s rail transit technology has been introduced and developed in recent years, and it has reached the advanced level of the world, but the key traction control technology is still dominated by foreign products.
Since the construction of Shanghai 1 and Guangzhou 1 subway in the 1990s, urban rail transit construction in China widely uses the latest technology and equipment, has built a world-class technical level of urban rail transit system, but the rail transit technology is still in the stage of introduction, digestion, absorption and innovation.
In the 1990s, all countries in the world adopted the stepless speed regulating DC motor system or the stepless chopper regulating DC motor system with power electronic control. In1990, after the emergency of GTO, the insulator gate transistor (IGBT), the developed country metro began to adopt the AC drive system of straight – alternating frequency conversion and variable pressure regulating AC motor. Since the 1990s, all new subway lines, monorail and light rail lines have been used in the communication transmission system of IGBT module except Shanghai NO.1 subway. Compared with DC drive, AC drive can reduce the power consumption by 40%. The amount of brake shoe is reduced by more than half due to regenerative braking.
The metro type A car (car width 3 meters /3.2 meters) and type B (2.8 meters wide) are all widely used in the international general application of the non-swing pillow bogies. This kind of bogies has the advantages of simple structure, less spare parts, light weight and less maintenance. Bogies with two lines suspension damping structure, a series adopts metal rubber laminated structure, the department uses the air spring, and is equipped with automatic height adjustment valve, through the exhaust gas and gas supply, automatically adjust the vehicle floor height, with faces matching platform. All different types of vehicles, such as subway A, B, linear electric locomotive, monorail, low-floor light rail, etc., are produced in our country.
Recommended product series: DPM60-110SXX-EB\DPM150-110SXX-FA series.
Претходно:Комуникација
Следно:Колиер
релевантни информации
-
2023-9-23
DC to DC Power Supply Module: Efficient and Reliable Power Conversion Solution
DC to DC Power Supply Module: Efficient and Reliable Power Conversion SolutionIntroduction:In today\'s technologically advanced world, power conversion plays a crucial role in various applications, ranging from consumer electronics to industrial equipment. The DC to DC power supply module is an essential component that converts one DC voltage level to another, providing a reliable and efficient power conversion solution. This article aims to explore the features, advantages, and applications of the DC to DC power supply module.Features of DC to DC Power Supply Module:1. Wide Input and Output Voltage Range:The DC to DC power supply module is designed to accommodate a wide range of input and output voltage levels. This flexibility allows it to be used in various applications where...
Погледнете детали -
2023-6-18
Exploring the Function and Applications of Bidirectional Converters in Electrical Engineering
In the realm of electrical engineering, bidirectional converters play a critical role in powering systems that require energy to flow in both directions. These devices are commonly used in applications such as renewable energy systems, electric vehicles, and power grids to ensure that energy is efficiently converted and utilized. In this article, we will delve into the function and applications of bidirectional converters and explore their significance in the field of electrical engineering. The Function of Bidirectional Converters A bidirectional converter is an electronic device that can convert power from one form to another and allow energy to flow in both directions. It is essentially a device that can convert DC power into AC power and vice versa. The converter...
Погледнете детали -
2023-5-6
AC-DC Converter Module: Turning Alternating Current to Direct Current
An AC-DC converter module is an electrical device used to convert alternating current (AC) to direct current (DC). It is an essential component of many electronic devices, such as computers, televisions, and mobile phones. The module is also used in industrial settings, where it is used to power various equipment. The module works by taking the AC power supply and converting it into a DC output. This process involves several stages, including rectification, filtering, and regulation. Let's take a closer look at each of these stages. Rectification The first stage of the AC-DC converter module is rectification. In this stage, the AC supply is transformed into a pulsating DC voltage. This is done using a diode bridge, which consists of...
Погледнете детали -
2024-4-10
DC-DC power module: a new choice for efficient and stable power supply
Today, as electronic equipment becomes increasingly popular, the stability and efficiency of power modules have become the key to ensuring the normal operation of equipment. DC-DC power modules have gradually become the new favorite in the market due to their high efficiency and stability. It can not only provide reliable power supply for communication equipment, industrial automation, medical equipment, aerospace and other fields, but also show excellent performance in extreme environments. Next, we will delve into the application advantages of DC-DC power modules in various fields and reveal why they can become a new choice for efficient and stable power supply. Applications in communication equipment In the field of communications, power supply stability is crucial to ensuring signal transmission quality...
Погледнете детали -
2023-4-28
Design of an AC-DC Converter Circuit
An AC-DC converter circuit is a device that converts alternating current (AC) to direct current (DC). It is an essential component of many electronic devices, including power supplies, computers, and telecommunications equipment.The design of an AC-DC converter circuit involves several key components, including a transformer, rectifier, filter, and voltage regulator. These components work together to convert the AC input voltage into a stable DC output voltage that can be used to power electronic devices.The transformer is the first component in the AC-DC converter circuit. It is used to step down the high voltage AC input to a lower voltage that can be rectified and filtered. The transformer consists of two coils of wire wound around a magnetic core. The primary...
Погледнете детали -
2023-7-8
Introducing the Cutting-Edge DC DC Converter EX Series
The world of technology is constantly evolving, and so is the demand for more efficient and reliable power solutions. To meet this demand, we are delighted to introduce our latest innovation – the Cutting-Edge DC DC Converter EX Series. This revolutionary converter series is designed to provide exceptional performance, versatility, and reliability for a wide range of applications. One of the key features of the DC DC Converter EX Series is its cutting-edge technology. This series incorporates the latest advancements in power electronics, ensuring highly efficient power conversion with minimal power loss. By utilizing advanced semiconductor materials and innovative circuit designs, our converters can achieve industry-leading efficiency levels, resulting in reduced energy consumption and lower operating costs. Versatility is another...
Погледнете детали