1.88kW BLDC Sensorless FOC - Sliding Mode vs Flux Observer with FW

This dataset is in support of my planned research paper shortly to be submitted to "IEEE Transactions on Power Electronics".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, so any textbook can be referred, with the addition of SMO or flux observer which acts as the "Adaptive Controller" in the estimation of speed. 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 includedperformance comparison using Sliding Mode Observer (SMO) and flux observerPWM switching frequency is varied 44 times from 20 kHz to 2 MHz , - will help decide MOSFETs switching frequency. (as in industries even 20kHz is used)Stability MarginsOpen LooTransfer Function CompensationClosed loopField WeakeningRoot 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 SystemCompensated 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.There is related dataset "200W BLDC Sensorless FOC - Sliding Mode vs Flux Observer" ,DOI: https://dx.doi.org/10.21227/8rz1-p666These brushless motors and controllers are used in many industries including medical e.g. in Positive Airway Pressure respirators,ventilator.This study comes in handy to decide when designing in practice for industries and also for academia purposes. The author has used these results in designing new 2-3 different complex models(incomplete), may be uploaded later.本数据集用于支持即将提交至《IEEE电力电子汇刊》（IEEE Transactions on Power Electronics）的研究论文。在本文及本数据集中，采用无传感器矢量控制方法——即磁场定向控制（Field Oriented Control, FOC）与观测器，实现无刷直流电机（Brushless DC Motor, BLDC）的转速与位置估算。所采用的矢量控制实现方案为通用成熟方法，可参考相关教科书，仅在转速估算环节新增了滑模观测器（Sliding Mode Observer, SMO）或磁链观测器作为“自适应控制器”。三相逆变器的开关模式通过空间矢量调制实现。 本论文与数据集的独特之处在于，作者纳入了基于滑模观测器与磁链观测器的性能对比；将PWM开关频率从20 kHz调整至2 MHz，共开展44组测试工况，该结果可用于辅助确定MOSFET的开关频率——工业场景中亦常采用20 kHz作为工作频率。本次研究涵盖的系统分析内容包括：稳定裕度、开环传递函数补偿、闭环系统、弱磁控制、未补偿系统与补偿系统的根轨迹、幅相特性伯德图（Bode Plot）、未补偿系统与补偿系统的零极点分布图、未补偿系统与补偿系统的单位阶跃响应、未补偿系统与补偿系统的奈奎斯特图（Nyquist Plot）、未补偿系统与补偿系统的尼科尔斯图（Nichols Chart）、未补偿系统与补偿系统的冲激响应。其中，补偿系统为引入SMO或磁链观测器后的系统。 所有分析与实现均基于32位实时微控制器完成，未在此处列明的引脚用于通用CAN、USB、RS485等外设接口。本次仿真未纳入功率因数校正（Power Factor Correction, PFC）模块，因预设功率因数PF=1。 本研究关联数据集为《200W无刷直流电机无传感器磁场定向控制——滑模观测器与磁链观测器对比》，DOI：https://dx.doi.org/10.21227/8rz1-p666。此类无刷直流电机及其控制器广泛应用于众多工业领域，包括医疗领域，例如正压气道通气呼吸器、呼吸机等。本研究成果可辅助工业界开展实际设计工作，同时也可为学术研究提供参考。作者已将本研究结果用于构建2-3种新型复杂模型（尚未完成），相关内容后续可能上传。