Study On Parallel Algorithm For Scheduling Divisible Loads On Heterogeneous Cluster Computing Systems

The generator and the starter are two key facilities of automobile electricalequipment. In recent years, much equipment is added to enhance convenienceand safety and result in increasing of electrical loads. Today's 14-V claw-polesynchronous generator is not able to meet the future power requirements due toits inherent design limit. And a lot of technology bottlenecks also exist in theDC starter with machinery commutator. The output power and efficiency willbe improved distinctly, with a 42-V powernet. Integrated starter-generator (ISG)System using induction machine has other outstanding advantages, with smallersize, shorter start time, and better start/stop capability. In the future, ahigh-efficient ISG system, which can supply comfort, more gas mileage andenvironmental performance, is demanded.This thesis describes the modeling and simulation of a 42-V automotiveISG system using induction machine. The induction machine is modeled in thegenerating direction. The converter is modeled by using the switch function. Thebattery is modeled with simplified equivalent circuit. Based on these models, theISG system with the technique of rotator field orientation vector control isdescribed. The ISG system is controlled by a pair of closed loops. The DCvoltage regulator and the rotator flux linkage regulator are adopted in outerloop, and current hysteresis band PWM controllers are adopted in inner loopThe four typical models of ISG system are analyzed. The offiine and real-time simulation is presented. Theoretical results of the models are verifiedwith the simulation results for both motoring and generating. This thesis canprovide the technology basis to rapid control prototyping (RCP) and hardwarein loop (HIL) in the development of ISG.