DC-DC Converter can connect components in a power system by raising or lowering the voltage level

wallpapers Industry 2021-06-04
The extensive use of automobiles worldwide has caused and continues to cause serious problems for the environment and human life.
Air pollution, global warming and the rapid consumption of the earth's oil resources are now serious problems. Electric vehicles (EVs), hybrid electric vehicles (HEVs), and fuel cell vehicles (FCEVs) have typically been proposed to replace conventional vehicles in the near future. Most electric and hybrid configurations use two energy storage units, one with high energy storage capacity, called the Main Energy System (MES), and the other with high power capacity and reversibility, called the Chargeable Energy Storage System (RESS). MES offers a longer driving range, while the RESS offers good acceleration and regenerative braking. The output voltage of an energy storage or power supply device varies with the state of load or charge. When integrating an energy storage/power supply device with a traction driver, the high voltage of a DC link presents a significant challenge to vehicle designers. DC-DC Converter can connect components in a power system by raising or lowering the voltage level. Due to the limitation of automobiles, the structure of the power converter must be reliable, lightweight, small size, high efficiency, less electromagnetic interference, small current/voltage ripple. Therefore, three different DC/DC converter topologies (traditional step-up DC-DC Converter, staggered 4-channel independent inductor step-up DC-DC Converter and full-bridge step-up DC-DC Converter) are compared.
The different configurations of electric vehicle power supply indicate that at least one DC-DC converter is required to connect the FC, battery or ultracapacitor module to the DC link.
In power engineering, a DC-to-DC converter is a category of power converter that is a circuit that takes direct current (DC) from one voltage source to another level, temporarily stores energy through the input, and then releases energy through the output of a different voltage. The storage can be a magnetic field storage assembly (inductor, transformer) or an electric field storage assembly (capacitor).
DC-DC Converter can be designed to transfer power in only one direction, from input to output. However, almost all DC/DC converter topologies can be bidirectional. Bidirectional converters can move power in any direction, making them useful in applications that require regenerative braking.
The power flow between the input and output can be controlled by adjusting the duty cycle (the ratio of the time the switch is on/off). Usually, this is done to control the output voltage, input current, output current, or to maintain constant power. Transformer-based converters can provide isolation between input and output. The main disadvantages of switching converters include complexity, electronic noise, and the high cost of some topologies.
DC-DC converter supplier
Grasen DC-DC converter is mainly used for hybrid vehicles, pure electric vehicles, electric buses, electric logistics vehicles and other new energy vehicles, and is suitable for charging lithium iron phosphate, lithium manganese acid, lead acid and other vehicle power batteries. Start your EV charging station businesses with Grasen.
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