1.88kW BLDC Sensorless FOC with Adaptive Sliding Mode Observer

This dataset is on the study of Motor controllers, for which author has done numerous experiments, and the analysis along with these will also be shortly submitted to "IEEE Transactions on Power Electronics".The results contained in this dataset are graphs which give intutive idea on the control characterisitics, whether the pole/zero is on the imaginary axis or the right half plane. Still in today's practice, the switching frequency for these controllers are used even 20 kHz instead 400khz or more, whereas MOSFETs can be switched to 2 MHz.BLDC motors ae used in medical industry ,ventillators, solar trackers, CNC servodrives, industrial robots, automative, electric vehicles- autos, rickshaws etc. But which way the controller design will be the best for the application, designer can easily make conclude as author in this particular dataset has swithcedMOSFET from 20 kHz to 2MHZ , 46 different PWM frequencies and the resulting characteristics.So, this study comes in handy to decide when designing in practice for industries and also for academia purposes. The author has also used these results in designing new 2-3 different complex models (incomplete), may be uploaded later.There are related datasets submitted to IEEE-Dataport and also to the Transaction Papers. So, the instructions and abstract is almost similar in all of these.In this paper and dataset, speed and the position estimation of BLDC is done using the sensorless vector control method i.e., Field Oriented control (FOC) and observer. The implementation method is the known method of vector control, with the addition of SMO or flux observer which gives the estimation of speed and the sensorless rotor position. The switching pattern of the 3-phase inverter is implemented using space vector modulation.DIfferences in this paper dataset can be seen as the author has included following , with analysis which can be drawn from seeing attached graphs -performance comparison using Sliding Mode Observer (SMO) and flux observerPWM switching frequency is varied 45 times from 20 kHz to 2 MHz , - will help decide MOSFETs switching frequency. (as in industries even 20kHz is used)Stability MarginsOpen Loop Control PerformanceTransfer Function CompensationClosed loop TuningRoot Locus of Uncompensated System and Compensated SystemBode Plot - magnitude and phasePole Zero Map of Uncompensated System and Compensated SystemUnit-Step Response of Uncompensated System and Compensated SystemNyquist plot of Uncompensated System and Compensated SystemNichols chart of Uncompensated System and Compensated SystemImpulse Response of Uncompensated System and Compensated SystemSinusoidal ExcitationCompensated System is after using SMO/Flux observer.All this is implemented on 32-bit Real-Time microcontroller. The pins usage not mentioned here are used for other General-Purpose-CAN,USB, RS485 etc.PFC is not included in this simulation as it is assumed that PF = 1.These brushless motors and controllers are used in many industries including medical e.g. in Positive Airway Pressure respirators,ventilator.