Enhancement of Predictive-Based Direct Control Strategies for Electrical Drives Using PBCC and PBTC Inverters
摘要
Predictive-based torque control (PBTC) and predictive base current control (PBCC) are sophisticated control techniques in power electronics. The predictive base torque control (PBCC) method takes into account the PTC technique evaluates Energy torque and flux through the stator in their monetary function to manage a synchronous reluctance machine (SRM) or induction machine (IM), whereas the PBTC technique assesses the deviations between the reference value of the current as well as the monetary function's measured current. The IGBT transitioning vector lessens the difference between the references and the anticipated values. Including the limitations of the system is simple. The element of weighting is not required. Both the PBCC and PBTC approaches are the most effective direct control techniques; however, the SRM approach does not require a modulator and provides ten percent to thirty percent greater torque than an induction motor. Induction motors can only provide seventy to ninety percent of the torque generated by SRM with the same current since they only operate on a lagging power factor. When employing SRM with a fifteen-level H-bridge multilevel inverter, PBCC, and PBTC lower torque, speed, and stator current by twenty-three percent more than when using an induction motor with the same inverter. By only switching the transistors when losses in switching are required to maintain torque along with flux within their respective limits, they are kept to a minimum. To improve the performance of the multilayer inverter, the semiconductor switches the method of switching is employed. In contrast to the PBTC and PBCC approaches with a voltage source inverter that has two levels, the methods used in this chapter with a fifteen-level H-bridge multilevel inverter employing both induction machines and synchronous reluctance motor provide exceptional torque along with flux responses as well as provide strong and consistent operation. Researchers immediately responded to this new approach because of its simple methodology and strong performance in both intermittent and sustained modes.