In addition to the influence of energy storage devices, the factors that affect the braking energy recovery efficiency of electric vehicles include the drive type [15,16], motor performance [17,18], driving conditions [19,20], and control strategy [21,22].
In addition to the influence of energy storage devices, the factors that affect the braking energy recovery efficiency of electric vehicles include the drive type [15,16], motor performance [17,18], driving conditions [19,20], and control strategy [21,22].
Single-phase input rectifier brushless DC motor drives with a small film capacitor have many advantages, such as high power density and high reliability. However, when the motor system operates in regenerative braking mode, the dc-link capacitor with reduced capacitance may suffer from overvoltage without adding additional hardware …
energies Article Research on Synchronverter-Based Regenerative Braking Energy Feedback System of Urban Rail Transit Shuting Li 1, Songrong Wu 1, Shiqiang Xiang 2, Yabo Zhang 3, Josep M. Guerrero 4,* and Juan C. Vasquez 4 1 Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle, Ministry of Education, ...
A supercapacitor module was used as the energy storage system in a regenerative braking test rig to explore the opportunities and challenges of implementing supercapacitors for regenerative braking in an electric drivetrain. Supercapacitors are considered due to their excellent power density and cycling characteristics; however, the …
The electric motor provides instant torque, resulting in quick acceleration and a more responsive driving experience. BEVs also offer regenerative braking, which captures the kinetic energy ...
Energy recovery control in elevators with automatic rescue ...
By introducing the braking characteristics of electric vehicles, this paper analyzes and compares two conventional motor energy feedback braking strategies, and proposes a …
Electric vehicles (EVs), which are environmentally friendly, have been used to minimize the global warming caused by fossil fuels used in vehicles and increasing fuel prices due to the decrease in fossil resources. Considering that the energy used in EVs is obtained from fossil resources, it is also important to store and use energy efficiently in …
Under urban operating conditions of more frequent braking and starting, effective recovery of braking energy can reduce …
3.2 CF of Traction Substations Combining with ES ModeDue to the low storage efficiency of RBE, the CF of traction substations combining with ES mode is proposed to improve the utilization rate. As shown in Fig. 3, the adjacent traction substations are connected to form a high-speed rail traction power supply system combining with the …
When the braking module is not used, the feedback power of train braking is returned to the power grid through the rectifying end, which causes great pressure on the power grid and bus capacitance. As can be seen from Fig. 3, when the train is braking, the direction of the active power on the inverter side and the rectifier side changes, and the …
Abstract: With the rapid development of energy storage technology, onboard energy storage systems(OESS) have been applied in modern railway systems to help reduce ...
The research on vehicle braking energy recovery technology originated from abroad, and three types of recovery systems have been established: hydraulic, flywheel and battery. Some studies have shown that loading a recycling system on a car can save about 30 ...
When any motor acts as a brake, the kinetic energy of the motor and the mechanism it attaches to must go somewhere. This is a basic tenet of physics, codified as the Law of Energy Conservation: energy cannot be created or destroyed, only altered in form the ...
The introduction and development of efficient regenerative braking systems (RBSs) highlight the automobile industry''s attempt to develop a vehicle that recuperates the energy that dissipates during braking [9], [10].The purpose of this technology is to recover a ...
Different from friction brake of hydraulic system, regenerative brake performed by the electric motor as a generator transfers kinetic energy to electric energy []. For regenerative braking system (RBS), there are three important topics including the system design, blended brake control and energy efficiency evaluation [ 4 ].
The proposed strategy gives consideration to both smooth braking torque control and effective braking energy regeneration by adopting unified switching vectors during the …
In this article, a braking force distribution and braking energy recovery strategies for regenerative braking and friction braking was designed for an FF (Front-engine, front-wheel-drive layout) electric …
RBSs can be classified based on employed energy storage system and control system. • RBSs improve fuel economy, performance, and reduce emissions and …