Speed Sensorless Induction Motor Drive With Predictive Current Controller

A Speed-Sensorless FS-PTC of Induction Motors Using Extended Kalman Filters

“…Knowing ψ s (k) and using standard forward-Euler approximation (14), the magnitude of the stator flux and the torque at the instant (k + 1) can be predicted as…”

Finite control set model predictive control for grid-tied quasi-Z-source based multilevel inverter

“…Among them, MPC is one of the most promising control technique, because it combines in a very simple form the discrete nature of the controller with the discrete nature of the power converter. MPC has been studied for nearly three decades [15] and is considered as one of the most advanced control theories available nowadays [16][17][18][19][20][21][22][23]. The development and application of Model-based Predictive Control was initially slowed down due to its high computational cost.…”

Robust Sensorless Sliding Mode Flux Observer for DTC-SVM-based Drive with Inverter Nonlinearity Compensation

“…Unfortunately, sensor replacement has several disadvantages, especially at very low speed and when the estimated speed depends on other observed quantities, such as rotor or stator fluxes. In this context, many studies have designed accurate estimators and introduced new sensorless schemes [4]- [20], including magnetic-saliency methods [4]- [7] (which present limitations in terms of precision and usefulness for low-saliency motors) and observer-based techniques [8]- [16] (which suffer from parameter mismatch, particularly at very low speeds and standstill operations). The artificial intelligence approach has been introduced recently to solve these problems [17]- [20].…”