Title :
Real-time simulation of a 20 kHz parallel-loaded resonant converter using an IBM RISC system/6000 model 350
Author :
Haskew, Tim A. ; Nelms, R.M.
Author_Institution :
Dept. of Electr. Eng., Alabama Univ., Tuscaloosa, AL, USA
fDate :
2/1/1994 12:00:00 AM
Abstract :
Real-time simulation tools are useful in studying the large-signal behavior of power electronic converters in a system-level environment, and can provide a platform for the evaluation of hardware implementations of control loop designs. This paper presents an approach which allows real-time simulation of the open-Loop performance of a 20 kHz parallel-loaded resonant converter using an IBM RISC System/6000 Model 350. The state equations which describe the converter are transformed to recursive equations using finite-difference techniques. First- and second-order differencing schemes have been investigated and compared. The second-order method is superior to the first-order method because a time step of 3.5 μs executes in 3.33 μs with exceptional accuracy and negligible error propagation
Keywords :
circuit analysis computing; circuit resonance; digital simulation; finite difference methods; network topology; power convertors; power electronics; reduced instruction set computing; 20 kHz; IBM RISC system/6000 model 350; circuit topology; control loop designs; finite-difference techniques; first-order differencing scheme; hardware implementations; parallel-loaded resonant converter; power electronic converters; real-time simulation; recursive equations; second-order differencing scheme; state equations; system-level environment; Circuit simulation; Computational modeling; Equations; Finite difference methods; Hardware; Power electronics; Power system modeling; Real time systems; Reduced instruction set computing; Resonance;
Journal_Title :
Industrial Electronics, IEEE Transactions on
