PROJECT TITLE :
Maximum Efficiency Per Ampere Control of Permanent-Magnet Synchronous Machines
High-potency electrical drive systems claim not only optimally designed electric machines but additionally potency-oriented management strategies. Taking machines and drives into synergetic consideration, this paper proposes a completely unique vector management algorithm named most efficiency per ampere (MEPA) management, aiming to maximise the potency of permanent-magnet synchronous machines (PMSMs) throughout operation. Totally different from standard $i_d =0$ or most torque per ampere management, MEPA totally considers the cross result and iron loss from which the total-order loss model of PMSMs is constructed. Thanks to the proposed concise and correct analytical approach to iron loss calculation, the optimal current phasor angle for MEPA will be quickly found, and also the estimation of potency is consistent with measurement. Comparison among totally different control algorithms is drawn from each analytical and experimental results, from which the effectiveness of MEPA is verified.
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