By Duco W. J. Pulle, Pete Darnell, André Veltman
· presents an total realizing of all features of AC electric drives, from the motor and converter to the carried out regulate set of rules, with minimal arithmetic needed
· Demonstrates tips on how to enforce and debug electric force platforms utilizing a suite of committed structures, motor setup and software program instruments in VisSim™ and PLECS™
· No specialist programming talents required, permitting the reader to pay attention to force development
· permits the reader to adopt real-time keep watch over of a secure (low voltage) and coffee expense experimental drive
This e-book places the elemental and complex options in the back of electrical drives into perform. heading off concerned arithmetic each time useful, this booklet indicates the reader the right way to enforce a variety of modern-day electric force thoughts, with no requiring intensive programming talents. It permits the person to construct and run a chain of AC force recommendations, starting from very uncomplicated drives to stylish sensorless drives. therefore the booklet is the single glossy source on hand that bridges the distance among simulation and the particular experimental setting. Engineers who have to enforce an electric force, or transition from sensored to sensorless drives, in addition to scholars who have to comprehend the sensible features of operating with electric drives, will significantly take advantage of this targeted reference.
Read or Download Applied Control of Electrical Drives: Real Time Embedded and Sensorless Control using VisSim™ and PLECS™ PDF
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Extra info for Applied Control of Electrical Drives: Real Time Embedded and Sensorless Control using VisSim™ and PLECS™
The triggering of the ZOH modules must be tied to the modulator as will become apparent shortly. Only a limited number of logic signal a; b; c combinations are possible and these can be represented by six active and two ‘zero’ output voltage vectors as shown in Fig. 21. These output vectors are generated by considering the voltages across the three motor phases for a given logic sequence a; b; c, and then applying a forward Clark transformation. 010/ implies a D 0, b D 1 and c D 0. e. all switches connected to the DC or zero bus voltage terminal.
10 are the steady-state vectors which represent the reference voltage vector uEs and current vector Eis . In addition, a ‘d-axis’ vector is introduced to show the orientation of the d,q reference frame, where the positive d-axis is displayed as a ‘green’ vector. 5), as is indeed the case. Note that part of the endpoint trajectory of the vectors are also shown in the vector plot. The reader is again encouraged to undertake a detailed examination of this simulation using the VisSim Simulation platform and this specific file.
A Reverse Park transformation is used to create a rotating voltage vector with a reference speed set by the (user defined) frequency f_ref. The controller structure, as given in Fig. 4, shows the integrator and Reverse Park module needed to generate the voltage vector uEref . uDC =2/ D mref ’ C jm“ , 44 3 Module 1: Lab Sessions Fig. 4 Voltage controller module Fig. 5 Signal condition circuit for one converter phase ref ref which is then converted to three reference modulation indices: mref A , mB , mC via the pulse-centering (SVM) unit.