Dynamic Phasor Modeling of Multi-Generator Variable Frequency Electrical Power Systems

The dynamic phasor (DP) concept has been widely used in modeling electrical power systems. So far, the DP concept has been restricted to modeling systems with one single electrical source at a fixed fundamental frequency, either one generator or an ideal three-phase AC source. This paper aims to extend the DP modeling methodology to a wider application area. Two major achievements have been introduced: 1) application of DPs for multi-source, multi-frequency systems; 2) modeling of systems with time-varying frequencies. These two techniques enable the use of DPs to study nearly all types of electrical power systems (EPS). The developed theory is validated using a twin-generator system from the More Open Electrical Technologies (MOET) project. The accuracy and effectiveness of the developed models is confirmed by comparing the simulation results of detailed switching models and DP models under both balanced and unbalanced conditions.

[1]  T. Wu,et al.  A fast dynamic phasor model of autotransformer rectifier unit for more electric aircraft , 2009, 2009 35th Annual Conference of IEEE Industrial Electronics.

[2]  P. Mattavelli,et al.  Modeling and analysis of FACTS devices with dynamic phasors , 2000, 2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077).

[3]  George C. Verghese,et al.  Synthesis of averaged circuit models for switched power converters , 1990, IEEE International Symposium on Circuits and Systems.

[4]  Tao Yang,et al.  Modeling of An 18-pulse Autotransformer Rectifier Unit with Dynamic Phasors , 2012 .

[5]  J. M. Noworolski,et al.  Generalized averaging method for power conversion circuits , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[6]  A. Stanković,et al.  Multifrequency averaging of DC/DC converters , 1999 .

[7]  K. Siri,et al.  Simulation of large distributed DC power systems using averaged modelling techniques and the Saber simulator , 1994, Proceedings of 1994 IEEE Applied Power Electronics Conference and Exposition - ASPEC'94.

[8]  Turhan Demiray,et al.  Simulation of Power System Dynamics using Dynamic Phasor Models , 2008 .

[9]  Serhiy Bozhko,et al.  Assessment of dynamic phasors modelling technique for accelerated electric power system simulations , 2011, Proceedings of the 2011 14th European Conference on Power Electronics and Applications.

[10]  F. Milano,et al.  Dynamic Phasor Modeling of the Doubly-fed Induction Generator under Unbalanced Conditions , 2007, 2007 IEEE Lausanne Power Tech.

[11]  A. M. Kulkarni,et al.  Dynamic Phasor Analysis of SSR Mitigation Schemes Based on Passive Phase Imbalance , 2011, IEEE Transactions on Power Systems.

[12]  Zexiang Cai,et al.  Hybrid-model transient stability simulation using dynamic phasors based HVDC system model , 2006 .

[13]  G. M. Asher,et al.  More-electric aircraft electrical power system accelerated functional modeling , 2010, Proceedings of 14th International Power Electronics and Motion Control Conference EPE-PEMC 2010.

[14]  S. Sanders,et al.  Dynamic Phasors in Modeling and Analysis of Unbalanced Polyphase Ac Machines , 2002, IEEE Power Engineering Review.

[15]  R. M. Bass,et al.  On the use of averaging for the analysis of power electronic systems , 1989, 20th Annual IEEE Power Electronics Specialists Conference.

[16]  Greg Asher,et al.  Functional Modeling of Symmetrical Multipulse Autotransformer Rectifier Units for Aerospace Applications , 2015, IEEE Transactions on Power Electronics.

[17]  Serhiy Bozhko,et al.  Modeling of active front-end rectifiers using dynamic phasors , 2012, 2012 IEEE International Symposium on Industrial Electronics.

[18]  George C. Verghese,et al.  Phasor dynamics of thyristor-controlled series capacitor systems , 1997 .

[19]  J A Martinez,et al.  Definitions and Applications of Dynamic Average Models for Analysis of Power Systems , 2010, IEEE Transactions on Power Delivery.

[20]  A. Bihain,et al.  The mixed Adams-BDF variable step size algorithm to simulate transient and long term phenomena in power systems , 1994 .

[21]  Serhiy Bozhko,et al.  Fast Reduced Functional Models of Electromechanical Actuators for More-Electric Aircraft Power System Study , 2008 .

[22]  A. Davoudi,et al.  Dynamic average modeling of front-end diode rectifier loads considering discontinuous conduction mode and unbalanced operation , 2012, 2012 IEEE Power and Energy Society General Meeting.

[23]  T. Aydin,et al.  Analysis of asymmetrical faults in power systems using dynamic phasors , 2000, 2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134).