Performance-Based Linearization Approach for Modeling Induction Motor Drive Loads in Dynamic Simulation

This paper describes a technique to model a vector-controlled induction motor drive in large-scale phasor-level dynamic simulation programs. The performance-based load model is implemented by obtaining the linearized power-voltage and power-frequency transfer functions from test data or from detailed electro-magnetic transient simulation used as a surrogate for test data. Voltage and frequency modulations are performed to obtain the amplitude and phase responses of the detailed vector-controlled drive model for a range of discrete frequencies. The prediction error minimization technique is utilized to generate best-fit analytical transfer function expressions. The electrical interface of the performance-based drive load model is developed to interact with the external system in positive-sequence dynamic simulation programs. The drive model is used to investigate the relative damping effects of drive-connected and direct-connected motors on system voltage and frequency oscillations.

[1]  Tore Undeland,et al.  Power Electronics: Converters, Applications and Design , 1989 .

[2]  Bimal K. Bose,et al.  Global Energy Scenario and Impact of Power Electronics in 21st Century , 2013, IEEE Transactions on Industrial Electronics.

[3]  M. Hoagland,et al.  Feedback Systems An Introduction for Scientists and Engineers SECOND EDITION , 2015 .

[4]  S. Nasar,et al.  Vector control of AC drives , 1992 .

[5]  J. F. Hauer,et al.  Initial results in Prony analysis of power system response signals , 1990 .

[6]  Xiaodong Liang.  Linearization Approach for Modeling Power Electronics Devices in Power Systems , 2014, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[7]  Bimal K. Bose,et al.  Power Electronics and Motor Drives Recent Progress and Perspective , 2009, IEEE Transactions on Industrial Electronics.

[8]  Luca Weisz,et al.  Power Electronics Converters Applications And Design , 2016 .

[9]  J. Schoukens,et al.  Parametric identification of transfer functions in the frequency domain-a survey , 1994, IEEE Trans. Autom. Control..

[10]  Liuping Wang,et al.  Identification of Continuous-time Models from Sampled Data , 2008 .

[11]  K. R. Padiyar,et al.  ENERGY FUNCTION ANALYSIS FOR POWER SYSTEM STABILITY , 1990 .

[12]  Bart De Moor,et al.  Subspace Identification for Linear Systems: Theory ― Implementation ― Applications , 2011 .

[13]  D. Kosterev,et al.  An Interim Dynamic Induction Motor Model for Stability Studies in the WSCC , 2002, IEEE Power Engineering Review.

[14]  Bimal K. Bose,et al.  Modern Power Electronics and AC Drives , 2001 .

[15]  G. J. Rogers,et al.  A fundamental study of inter-area oscillations in power systems , 1991 .

[16]  Yutian Liu,et al.  Low Frequency Oscillation Analysis and Damping Based on Prony Method and Sparse Eigenvalue Technique , 2006, 2006 IEEE International Conference on Networking, Sensing and Control.

[17]  Werner Leonhard,et al.  Control of Electrical Drives , 1990 .

[18]  Jovica V. Milanovic,et al.  Load modelling in studies of power system damping , 1995 .