Using TACS Functions Within EMTP to Set Up Current-Transformer Model Based on the Jiles-Atherton Theory of Ferromagnetic Hysteresis

• Published in: IEEE transactions on power delivery Vol. 22; no. 4; pp. 2222 - 2227
• Main Authors: Liu, Shun-Tsai, Huang, Sy-Ruen, Chen, Hung-Wei
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.10.2007; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Computer simulation; Control system synthesis; Current transformer (CT); Current transformers; Differential equations; Electric power generation; Electrical engineering. Electrical power engineering; Electrical machines; Electrical power engineering; Electromagnetic modeling; Electromagnetic Transients Program (EMTP); EMTP; Exact sciences and technology; Faults; Ferromagnetism; Flexibility; Hysteresis; Jiles-Atherton (J-A) hysteresis model; Mathematical models; Miscellaneous; Nonlinearity; Ordinary differential equations; Power networks and lines; Power system modeling; Power system simulation; Power system transients; Regulation and control; Studies; Transformers and inductors; Transient analysis; transient analysis of control systems (TACS); Asia; Taiwan; Closed loop; Transient response; EMTP; Differential equation; Control system; Current transformer (CT); Ferromagnetic materials; Inductor; Flexibility; Steady state; Hysteresis loop; Current transformer; transient analysis of control systems (TACS); Electrical network; First order; System simulation; Ferromagnetism; Jiles-Atherton (J-A) hysteresis model; Transient analysis; Electromagnetic Transients Program (EMTP); Comparative study
• ISSN: 0885-8977; 1937-4208
• DOI: 10.1109/TPWRD.2007.905809

The subject of this paper is to construct a current- transformer (CT) model based on the Jiles-Atherton (J-A) theory of ferromagnetic hysteresis using transient analysis of control systems (TACS) functions within the electromagnetic transients program (EMTP) in a closed-loop manner. The J-A theory of ferromagnetic hysteresis is presented by the nonlinear first-order ordinary differential equations and inclusive of five parameters that can be found by measurements of hysteresis characteristic. We can use TACS functions within EMTP to describe the J-A theory of ferromagnetic hysteresis. The powerful advantage of this way is the interaction between the electrical network and TACS in EMTP. Compared with the CT model based on the type 96 nonlinear hysteresis inductor, the simulated result of the CT model based on the J-A theory of ferromagnetic hysteresis is almost the same in steady-state situations, but apparently different in a fault transient situation. The analysis and simulation of the actual measured fault profiles in the Taiwan power system is an example of the validation of this proposed model. Therefore, this proposed CT model based on the J-A theory of ferromagnetic hysteresis has the analysis capability of the transient response. The flexibility of TACS makes the simulation of any other situation easier and is another advantage.