دانلود کتاب استراتژی های کنترل درایو موتور سنکرون مغناطیس دائم برای وسایل نقلیه الکتریکی

To reduce the emissions of greenhouse gasses and maintain environmental sustainability, electric vehicles play a vital role in a modern  energy-efficient environment. Permanent magnet synchronous motors ( PMSMs) are widely employed in electric vehicle technology due to their high dynamic response, better  torque-speed characteristics, noiseless operation, high power density, high efficiency and power factor as compared to other conventional motor drives. This research work demonstrates the development of various control strategies and illustrates the dynamic performance intensification of the PMSM drive. For the satisfactory as well as  energy-efficient operation of a typical electric drive system, control strategy plays a challenging role. Additionally, to ensure faster dynamic behaviour and flexibility in control under various operating conditions, performance of a PMSM drive has been investigated in this work. Moreover, control strategies have been executed through mathematical modelling and illustration of several case studies for optimal operation. First, the book confers an improved control strategy based on  self-controlled operation of a PMSM drive under various operating conditions. In this area, illustration of dynamic performance intensification of a PMSM operated through a pulse width modulation ( PWM)-controlled voltage source inverter ( VSI) which synchronizes with the rotor position information is established. Moreover, it is observed that by few modifications of the position sensor circuitry, nearly sinusoidal armature phase currents result, which generates less torque ripples. Subsequently, three input parameters such as dc bus voltage, load torque and sensor angle are considered to establish the typical dynamic behaviour of the drive system. An effective speed control strategy of the drive system by the variation of dc bus voltage is achieved, which is analogous to armature voltage control of a separately excited dc machine. In a  self-controlled PMSM, the space angle between the field mmf ( magneto motive force) and the armature mmf can be considered in various switching instants of the inverter to ensure position estimation. Furthermore, a newly introduced performance indicator, i.e. sensor lead angle, is proposed due to the angular displacement between the field mmf and armature mmf at different switching combinations. The different dynamic behaviour of the PMSM machine is determined and is eventually simulated through MATLAB® simulation for various sensor lead angles with unanticipated variation in the load.