Fuzzy logic based online electromagnetic loss minimization of permanent magnet synchronous motor drives

Sergaki, ES; Georgilakis, PS; Kladas, AG; Stavrakakis, GS

dc.contributor.author	Sergaki, ES	en
dc.contributor.author	Georgilakis, PS	en
dc.contributor.author	Kladas, AG	en
dc.contributor.author	Stavrakakis, GS	en
dc.date.accessioned	2014-03-01T02:45:17Z
dc.date.available	2014-03-01T02:45:17Z
dc.date.issued	2008	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32257
dc.subject	Adjustable Speed Drive	en
dc.subject	Control Algorithm	en
dc.subject	Control System	en
dc.subject	Fuzzy Control	en
dc.subject	Fuzzy Logic	en
dc.subject	Fuzzy Logic Controller	en
dc.subject	Laboratory Tests	en
dc.subject	Motor Performance	en
dc.subject	Permanent Magnet Synchronous Motor	en
dc.subject	Steady State	en
dc.subject	Vector Control	en
dc.subject	Operating Characteristic	en
dc.subject.other	Adjustable speed drives	en
dc.subject.other	Constant time	en
dc.subject.other	DC links	en
dc.subject.other	Drive power	en
dc.subject.other	DSP boards	en
dc.subject.other	Efficiency controls	en
dc.subject.other	Efficiency improvements	en
dc.subject.other	Electromagnetic loss	en
dc.subject.other	Fast-tracking	en
dc.subject.other	Fuzzy control systems	en
dc.subject.other	Fuzzy logic controllers	en
dc.subject.other	Fuzzy-Logic	en
dc.subject.other	Higher efficiencies	en
dc.subject.other	Indirect vector controls	en
dc.subject.other	Load disturbances	en
dc.subject.other	Load torques	en
dc.subject.other	Magnetizing currents	en
dc.subject.other	Motor performance	en
dc.subject.other	Operating characteristics	en
dc.subject.other	Output power	en
dc.subject.other	Permanent magnet synchronous motor drives	en
dc.subject.other	Power loss	en
dc.subject.other	Search controllers	en
dc.subject.other	Search criterion	en
dc.subject.other	Simulink	en
dc.subject.other	Specific loads	en
dc.subject.other	Speed sensitivities	en
dc.subject.other	Stator currents	en
dc.subject.other	Stator fluxes	en
dc.subject.other	Steady and transient state	en
dc.subject.other	Steady state	en
dc.subject.other	Steady-state errors	en
dc.subject.other	Steady-state operations	en
dc.subject.other	Torque components	en
dc.subject.other	Torque ripples	en
dc.subject.other	Transient state	en
dc.subject.other	Vector controllers	en
dc.subject.other	AC motors	en
dc.subject.other	Control system analysis	en
dc.subject.other	Controllers	en
dc.subject.other	Electric drives	en
dc.subject.other	Fuzzy inference	en
dc.subject.other	Fuzzy sets	en
dc.subject.other	Induction motors	en
dc.subject.other	Magnetic devices	en
dc.subject.other	Motors	en
dc.subject.other	Permanent magnets	en
dc.subject.other	Robust control	en
dc.subject.other	Speed	en
dc.subject.other	Standardization	en
dc.subject.other	Stators	en
dc.subject.other	Synchronous motors	en
dc.subject.other	Variable speed drives	en
dc.subject.other	Fuzzy control	en
dc.title	Fuzzy logic based online electromagnetic loss minimization of permanent magnet synchronous motor drives	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/ICELMACH.2008.4800113	en
heal.identifier.secondary	http://dx.doi.org/10.1109/ICELMACH.2008.4800113	en
heal.identifier.secondary	4800113	en
heal.publicationDate	2008	en
heal.abstract	The objective of this paper is to give an insight about the development of a fuzzy logic efficiency control system which is incorporated to a standard adjustable speed drive control (i.e. Indirect Vector Control) in order to improve the online efficiency in Permanent Magnet Synchronous Motor (PMSM) drives for both transient and steady state operation. The search criterion in steady state is the minimization of the drive power losses by reducing the stator flux while meeting the speed and load torque demands. The power losses are calculated as the difference between the measured input DC-link power and drive's output power. The power losses are calculated at every sampling step and the change of power losses are calculated over a constant time interval as it is needed by the efficiency control algorithm. Variables in the operating characteristics of the PMSM, such as DC input voltage/current and actual speed are inputs to the fuzzy control system, making the control system independent of any specific load. Our system combines two fuzzy logic designed efficiency controllers which are introduced as Fuzzy(1) and Fuzzy(2) controllers in order to generate the magnetizing current (d-axis component of the stator current). They are separately activated during the steady and transient state respectively. The Fuzzy(1) controller is a search controller (SC) operating in steady state, so to decrease the stator flux for higher efficiency. The Fuzzy(2) controller is a SC operating in transient state, so to increase at minimum the magnetizing current, to achieve fast tracking capability, less steady state error and robust to load disturbance during transient state. The torque component of the stator current is generated by the vector controller in order to achieve higher motor performance. The fuzzy logic controllers (FLCs) prototypes were created and tested using Simulink® simulations. Simulations are accomplished in Simulink® in order to validate our method (i.e. efficiency improvement, less torque ripple with flux changes and the less speed sensitivity to load disturbances). Experimental results will be available upon conclusion of the laboratory testings. Future experimental deployments will include a DSP board which will be directly programmed in assembler language via Simulink®. © 2008 IEEE.	en
heal.journalName	Proceedings of the 2008 International Conference on Electrical Machines, ICEM'08	en
dc.identifier.doi	10.1109/ICELMACH.2008.4800113	en