Title :
A method for linearising optimal PWM switching strategies to enable their computation on-line in real-time
Author :
Jiang, Q. ; Holmes, D. Grahame ; Giesner, David B.
Author_Institution :
Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Melbourne, Vic., Australia
fDate :
Sept. 28 1991-Oct. 4 1991
Abstract :
A general technique is presented for the piecewise linearization of optimal pulse width modulation strategies, from which a near-optimal switching strategy, able to be computed online in real-time by relatively low performance microprocessors, can be developed. The linearization technique replaces the switching patterns of an optimal PWM strategy with a series of piecewise linear segments, selected using a sensitivity analysis to minimize the generated harmonics, and these linear segments are used to create the online switching algorithm. The linearization technique is presented, along with experimental results which show the application of the technique to a particular optimal PWM switching strategy, applied to a SMES (superconducting magnetic energy storage system) system.<>
Keywords :
harmonics; power convertors; power engineering computing; pulse width modulation; superconducting magnet energy storage; switching; SMES; harmonics; linearising optimal PWM switching strategies; low performance microprocessors; online switching algorithm; piecewise linear segments; power converters; pulse width modulation; real-time; sensitivity analysis; superconducting magnetic energy storage system; Linearization techniques; Piecewise linear techniques; Pulse generation; Pulse width modulation; Real time systems; Sensitivity analysis; Space vector pulse width modulation; Switching converters; Systems engineering and theory; Timing;
Conference_Titel :
Industry Applications Society Annual Meeting, 1991., Conference Record of the 1991 IEEE
Conference_Location :
Dearborn, MI, USA
Print_ISBN :
0-7803-0453-5
DOI :
10.1109/IAS.1991.178333
