High-efficiency electric drive systems claim not only optimally designed electric machines but also efficiency-oriented control strategies.
Taking machines and drives into synergetic consideration, Jong Hak Chol, a section head at the Faculty of Electrical Engineering, has proposed a fresh particle crowd optimization (FPCO) of efficiency-oriented control algorithm called maximum outer torque per ampere (MOPA) control and maximum efficiency per ampere (MEPA) control, aiming to maximize the efficiency of interior permanent magnet synchronous machines in operation.
Differently from conventional id = 0 or maximum torque per ampere control, MOPA and MEPA fully consider the cross effect Core loss, iron loss, supplementary loss and mechanical loss.
In order to identify the accuracy of the efficiency-oriented control algorithm, he built an efficiency-oriented controlled system based on FPCO using nonsingular terminal sliding (NTS) controller, and on the basis of this, he inspected the stabilization of current trajectory and the voltage vector from simulation and testing. After that, he verified the higher effectiveness of MOPA and MEPA through the operation experiment of IPMSM whose capacity is 82 kW.
You can find more information about it in his paper “Fresh particle crowd optimization of efficiency-oriented control in interior permanent magnet synchronous motor during operation” published in the SCI Journal “International journal of power and energy conversion”.
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