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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2018, Vol. 39 ›› Issue (11): 322251-322261.doi: 10.7527/S1000-6893.2018.22251

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

Dynamic model identification of starting process of a turbo-shaft engine based on QPSO-ELM

WU Heng, LI Benwei, ZHANG Yun, YANG Xinyi   

  1. Aviation Foundation College, Naval Aviation University, Yantai 264001, China
  • Received:2018-04-27 Revised:2018-05-21 Online:2018-11-15 Published:2018-07-20
  • Supported by:
    National Natural Science Foundation of China (51505492, 61174031); Special Funds of Taishan Scholar Project

Abstract: To solve the difficulty of establishing models for starting process of a certain type of turbo-shaft engine by analytical methods, a data-driven method for model identification of the starting process of a turbo-shaft engine based on the Extreme Learning Machine optimized by the Quantum-behaved Particle Swarm Optimization (QPSO-ELM) algorithm is proposed. Firstly, a subsection model for the starting process of the turbo-shaft engine is constructed in light of the description of the state space method. Then, the QPSO-ELM algorithm is adopted to identify the constructed model in combination with data of the engine starting test. The identification results of the speed of the gas generator rotor, the speed of the engine output shaft and the temperature of the gas turbine outlet are all close to measured data, the mean maximum relative errors are 1.358%, 1.628% and 2.195%, respectively, which can meet the precision requirement of practical application. In addition, the identification accuracy of the QPSO-ELM is better than the Extreme Learming Machine (ELM), the Support Vector Machine (SVM) and the Back Propagation (BP) neural network.

Key words: QPSO, ELM, turbo-shaft engine, starting process, data-driven, model identification

CLC Number: