Regeneration Using C-Dump Fed Switched Reluctance Generator

The regeneration modes of switched reluctance machines are examined in this paper. The conversion of mechanical energy to electrical energy is aided by the stator excitation which is used to provide the air-gap flux and recover the energy from a prime-mover making it suitable for electric/hybrid vehicles. The operation of a C-Dump converter in the generation mode is analyzed and the energy recovery mechanism is illustrated using MATLAB simulations. The braking profile on the prime mover is also examined for multiphase excitation with various currents. The excitation reference is the control variable that is dynamically adjusted to achieve control in the braking mode. A control law is derived to achieve a target speed in the braking mode.

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Operating Strategies of Switched Reluctance Machines for Exhaust Gas Energy Recovery Systems

IEEE Transactions on Industry Applications ◽

10.1109/tia.2012.2210010 ◽

2012 ◽

Vol 48 (5) ◽

pp. 1478-1486 ◽

Cited By ~ 13

Author(s):

Melanie Michon ◽

Stuart D. Calverley ◽

Kais Atallah

Keyword(s):

Energy Recovery ◽

Exhaust Gas ◽

Switched Reluctance ◽

Switched Reluctance Machines ◽

Operating Strategies

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Regenerative braking as a way to recover lost energy in hybrid vehicles

Science Technology and Innovation ◽

10.5604/01.3001.0014.1786 ◽

2020 ◽

Vol 8 (1) ◽

pp. 21-25

Author(s):

Michał Soliński

Keyword(s):

Automotive Industry ◽

Energy Recovery ◽

Rapid Development ◽

Electrical Energy ◽

Hybrid Vehicles ◽

Motor Vehicles ◽

Regenerative Braking ◽

Energy Recovery System ◽

Recovery System ◽

Braking Process

Very rapid development of the automotive industry forces designers to implement new solutions. One of them is the construction of braking systems, which can enable the recovery of part of the energy lost during the braking process in hybrid vehicles. The article presents the basic types of hybrid drives currently used in motor vehicles. The principle of operation of the mechanical and electrical energy recovery system had been discussed, and the vehicles in which such solutions had been applied were indicated.

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MODELING OF ENERGY CONVERSION PROCESSES IN THE SYSTEM VIBRA-TION ENERGY RECOVERY OF VEHICLES

Tekhnichna Elektrodynamika ◽

10.15407/techned2021.04.035 ◽

2021 ◽

Vol 2021 (4) ◽

pp. 35-43

Author(s):

Yu. Vaskovskyi ◽

◽

M. Poda ◽

◽

...

Keyword(s):

Mathematical Model ◽

Energy Recovery ◽

Mechanical Energy ◽

Electrical Energy ◽

Mechanical Vibrations ◽

Electric Generator ◽

Charging Time ◽

Auxiliary Power ◽

Complex Mathematical Model ◽

Vehicle Chassis

The article presents a complex mathematical model of the energy recovery system for mechanical vibrations of vehicles moving in difficult road conditions. Such a system is an auxiliary power supply system that enhances the functionality of modern vehicles. The mathematical model takes into account the entire set of processes for converting the energy of mechanical vibrations in the following sequence: mechanical energy of the reciprocating oscillatory motion of the vehicle chassis - mechanical energy of the rotational motion of the electric generator shaft - electrical energy of the alternating current of the generator - direct current electrical energy of the battery. The modes of operation of the system are investigated, which provide efficient processes of charging the battery. For a specific example, data on the charging time of a truck battery is given. References 9, figures 7.

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Analysis Of The Effect Of Alternator Modification On Himoinsa Genset 20 Kva To Load Testing And Cost

Academia Open ◽

10.21070/acopen.3.2020.1197 ◽

2021 ◽

Vol 3 ◽

Author(s):

Iwan Hadi Suratno ◽

A’rasy Fahruddin

Keyword(s):

Diesel Engine ◽

Wind Speed ◽

Fuel Consumption ◽

Surface Area ◽

Mechanical Energy ◽

Electrical Energy ◽

Load Testing ◽

Test Results ◽

Prime Mover ◽

Electrical Voltage

A generator is a device or engine that generates electrical energy from the presence of mechanical energy obtained from a prime mover in the form of a diesel engine as the prime mover which then drives an AC generator or alternator, causing an electrical voltage. The aim of this research is that the generator can supply electricity needs at the Sumur Welut site by changing or modifying diameter of the wire on the alternator. This analysis includes the Stator and Rotor on the Alternator generator so that it can produce the electricity needed. From the test results, the load generated after being modified can supply power at the site but the fuel consumption is more wasteful, namely 0.9 liters / minute and also the generator temperature increases to 88.2 C. So that the radiator planning is done by changing the surface area of the radiator from 2915 cm2 to 8077 cm2. Or change the radiator fan, which originally changed the wind speed of 4.7 m / s to 13 m / s. Keywords: Generator, Alternator, Load Testing, Radiator, Cost.

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Reduction of structural vibrations with the piezoelectric stacks ring

International Journal of Applied Electromagnetics and Mechanics ◽

10.3233/jae-209384 ◽

2020 ◽

Vol 64 (1-4) ◽

pp. 729-736

Author(s):

Jincheng He ◽

Xing Tan ◽

Wang Tao ◽

Xinhai Wu ◽

Huan He ◽

...

Keyword(s):

Vibration Control ◽

Mechanical Energy ◽

Electrical Energy ◽

Structural Vibrations ◽

Rotor Systems ◽

Fea Model ◽

Piezoelectric Stacks ◽

Shunt Damping ◽

Reduction Effect ◽

Euler Bernoulli Beam

It is known that piezoelectric material shunted with external circuits can convert mechanical energy to electrical energy, which is so called piezoelectric shunt damping technology. In this paper, a piezoelectric stacks ring (PSR) is designed for vibration control of beams and rotor systems. A relative simple electromechanical model of an Euler Bernoulli beam supported by two piezoelectric stacks shunted with resonant RL circuits is established. The equation of motion of such simplified system has been derived using Hamilton’s principle. A more realistic FEA model is developed. The numerical analysis is carried out using COMSOL® and the simulation results show a significant reduction of vibration amplitude at the specific natural frequencies. Using finite element method, the influence of circuit parameters on lateral vibration control is discussed. A preliminary experiment of a prototype PSR verifies the PSR’s vibration reduction effect.

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