Synthetic Loading for Symmetrical and Asymmetrical NinePhase Machines Substantial amount of research and development have been conducted in relation to multiple threephase winding machines. This is due to their reliability and fault tolerant capabilities. Development of these machines requires a few tests in order to validate machineu0027s design and characteristics. The fullload test is one of the most important tests. During this test the machineu0027s efficiency and thermal design can be evaluated under various conditions. In this paper, a new approach of conducting the fullload test of ninephase machine is presented. The main advantage of the proposed scheme is that there is no need for mechanical coupling of the tested machine with another one. Usually, the machine is coupled with another machine, of the same or higher power rating, which is used as a load. The proposed test utilises indirect rotor fieldoriented control (IRFOC) and vector space decomposition (VSD) to achieve the desired loading and hence temperaturerise in the machine. The ability to recirculate the power among the winding sets of the ninephase machine is an advantage of the proposed scheme. In other words, the machine is loaded using its own winding sets  hence the test is classified as synthetic loading. The proposed scheme is validated through simulation results.

Fast and efficient FPGA prototype system for embedded control algorithms in electric traction In this paper, we present a novel digital architecture in order to create fast and efficient traction control systems. The purposed architecture decouples the design of the control algorithm from the rest of system functions, generating every support modules that the core control needs, such us, host processor communications, inertial and electric signals sampling, control cycle managing and core output modulation. This computation core environment is parametrizable and adjustable to a wide range of core designs. The system has been realized completely on field programmable gate array (FPGA), which utilizes advantages and resources of this technology, optimizing the cost in logic elements and achieving fast control cycles. This design structure and methodology reduces the development time for new applications and due to the restricted use of logic resources in the implementation, provides a method for rapid prototyping and creation of system control onchip IC (SCoC). For validating this work, we develop a field oriented control (FOC) system with asynchronous 3phase pulse width modulation (PWM) control scheme. We present the results of implementation in logic resources and execution time. We have verified the behavioral of the system in real motor control laboratory equipment.