Real-time Controller Hardware-in-the-Loop Testing of an Electric Vehicle Powertrain for Optimal Delivery of Energy Sources

This paper explores the adoption of electric vehicles (EVs) with particular emphasize on electric traction drive technologies. This work will then have a look at the different alternative solutions behind each electric vehicle motor drive and the reason behind a particular chosen type of motor, its control architecture to get the most performance out of the existing traction systems. The theoretical model prediction of what a real-world vehicle would perform is developed resembling when given ideal transient conditions applied and then simulate an EV power distribution system hybridizes the PV solar and battery resources in a real-time manner. The developed model is constructed through MATLAB/Simulink and executed on real-time hardware setup. It includes distributed energy resources (DERs: Battery, Solar Photovoltaic) and its associated power electronics DC-DC converter and controls, DC-AC inverter to drive the interior permanent magnet synchronous motor (IPMSM). The drivetrain control scheme includes both speed, max torque-per-ampere and field weakening controllers to offer EV operation within extended speed and torque ranges comparable to available EV technologies such as BMW iX3. Different operating scenarios are evaluated deploying controller HIL and the obtained results validated the theoretical expectations and overall performance of the studied self-charging EV drive system.

Concept for Distributed Field Oriented Control of Twelve-Phase Permanent Magnet Machine

Designing an effective control strategy for an open-delta modular multi-phase machine includes challenges such as common mode currents, varying self and mutual inductance, and the coupling between phases. This problem is unique to open delta machines and the focus of most available literature is on neutral point connected machines. This work addresses these challenges by developing a distributed FOC strategy that includes these important parameters.

Acceleration Feedback Controller Processor Design of a Segway

In this paper, the development of the special purpose processors (SPP) design of a proposed nonholonomic autonomous segway robot for acceleration-based feedback control laws is presented which could be implemented in hardware like VLSI chip, ASIC or an FPGA board for fast prototyping.

Acceleration Feedback Controller Processor Design of a Kids Personal Transporter (kPT)

This paper presents the development of the embedded application-specific instruction set processor(ASIP) design for acceleration feedback control laws of a nonholonomic autonomous kids personal transporter (kPT) robot, which contains two front driven wheels and a rear free-wheeling castor for balance with an omnidirectional obstacle sensor of limited detection range.

Angle-dependent identification of PMSM HF parameters with large bandwidth based on switching harmonics of a 2-level inverter

This paper presents a new method for identifying high frequency machine parameters using the current- and voltage harmonics of a voltage source inverter. By utilizing existing excitations, an additional test signal can be omitted. This reduces the implementation effort and increases the maximum evaluation frequency to 100 kHz and therefore by a factor of 50 compared to existing methods.
Due to the high bandwidth of the switching harmonics, the identification can be carried out at several frequencies at the same time, providing a simple and yet powerful method for angle-dependent parameter identification with high bandwidth.

Coil Design Study of Ultrafast Thomson Coil Actuator

A transient FEM simulation study is carried out to investigate the optimal coil design of an ultrafast Thomson Coil Actuator. An innovative coil design is proposed that aims to maximize the energy conversion efficiency and limit the mechanical stress. The results show that a siginicant increase in efficiency can be achieved using the proposed coil design.