Electric Drives by Marcel Jufer(auth.)

By Marcel Jufer(auth.)

An electrical force that's designed or tailored to a particular program needs to take into consideration the entire parts of the chain of constituent components in its use and deployment. as well as the motor, the transmission, strength electronics, regulate, sensors, and electric defense structures has to be taken into account.

The motor and the transmission could be optimized and designed to acquire the easiest power potency overview, particularly for dynamic nodes. a list and a characterization of those a variety of elements is proposed as a part of this book’s exam and rationalization of different expertise components, in addition to a dynamic version of the procedure, with the entire procedure constituting a technique for built-in electrical force design.

Content:
Chapter 1 advent – electrical force elements (pages 1–4): Marcel Jufer
Chapter 2 pushed our bodies (pages 5–14): Marcel Jufer
Chapter three Transmission (pages 15–40): Marcel Jufer
Chapter four vehicles (pages 41–86): Marcel Jufer
Chapter five cars (pages 87–100): Marcel Jufer
Chapter 6 international layout of an electrical force (pages 101–118): Marcel Jufer
Chapter 7 Heating and Thermal Limits (pages 119–136): Marcel Jufer
Chapter eight electric Peripherals (pages 137–148): Marcel Jufer
Chapter nine digital Peripherals (pages 149–158): Marcel Jufer
Chapter 10 Sensors (pages 159–186): Marcel Jufer
Chapter eleven Direct Drives (pages 187–206): Marcel Jufer
Chapter 12 built-in Drives (pages 207–212): Marcel Jufer

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3] – rating torque MN. 4. 5. 6 – 1). 6 –2). Between these two functions, the torque is assumed to be by a maximum (minimum) ± MK for a slip ± sK. M N The first value corresponds to a power of the order of 1 kW and the second to 100 kW or more. 6. 7). 7. 4. Two-speed motor – Dahlander’s coupling An asynchronous motor presents as a rule a stabilized domain of speed varying by several percent. Outside this, the efficiency quickly decreases. It is however possible to realize a two-speed motor in a ratio of one to two with a single winding, by modifying the coupling of this last one.

Characterization Since the development of the first electric motor, the DC current type with a collector, numerous motor variants have been conceived and applied in a relatively extensive way. Two important motor types may be distinguished: − the induction or asynchronous motors, for which the stator rotating magnetic field has a different speed to the rotor speed; − the synchronous or auto-synchronous motors, for which the stator and rotor rotating fields both have the same speed. With the DC current motor, due to the role of the collector, it is the rotating field of the rotor that is synchronous with the stator, and thus fixed in the space.

The deceleration phase is generally of brief duration compared with the period. The behavior is mainly governed by the load. 60] − choice of the speed Ω2 is lower than the speed ΩΝ (M2 > MΝ). 63] By using the expression of the speed according to time, the choice of the values Ω1, Ω2, Jt must be verified, by checking the balance sheet of the motor losses. Using an iterative process, the final values can be determined. 6. 1. Aim A motor associated with a driven body, including a transmission (or not), has to assure a position transfer (angle Transmission 37 αtot) practically at no load at a given time T.

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