This allows one to test the performance of a control scheme for microprocessors/DSP implementation with the minimum effort. One can, for example, use PSIM to represent the power stage, write the control scheme in C, and interact control with the power stage via DLL. This feature greatly enhance PSIM’s flexibility and capability. PSIM supports DLL (dynamic link library) blocks which allows users to link custom C code to PSIM. With this link, the power converter and control part of a system can be implemented and simulated in PSIM, and electric machines and other magnetic devices can be implemented and simulated in JMAG. JMAG is a finite element analysis software for electromagnetic field analysis. PSIM can link to the finite element analysis software JMAG through the MagCoupler Module. * Dynamic Link to Finite Element Analysis Software: It can be used to simulate the performance of digital control loops, study digital filters, and evaluate various effects in digital control, such as truncation errors, sampling/hold delay, and computational delay. PSIM can simulate control systems in z-domain. With the Motor Drive Module, PSIM provides an easy and effective way of modeling and simulating motor drive systems. Commonly used electric machine models and mechanical load models are available. PSIM provides a comprehensive library for motor drive system studies. This feature allows users to make full use of PSIM and Matlab/Simulink in a complementary way. PSIM can perform co-simulation with Matlab/Simulink. This feature greatly reduces the time required to obtain frequency response. While almost all the simulation software require that a switchmode circuit be represented by an average model first before performing ac analysis, PSIM can perform ac analysis even if the circuit is in switchmode. * Frequency Response Analysis (ac sweep): PSIM’s control library provides a comprehensive list of components and function blocks, and makes it possible to build virtually any control schemes quickly and conveniently. PSIM can simulate control circuit in various forms: in analog circuit, s-domain transfer function block diagram, z-domain transfer function block diagram, custom C code, or in Matlab/Simulink. This makes it particularly efficient in simulating converter systems of any size, and performing multiple-cycle simulation. It achieves fast simulation while retaining excellent simulation accuracy. PSIM is one of the fastest simulators for power electronics simulation. Even without prior experience with CAD software, one could start building a circuit and obtaining results in minutes. PSIM is so easy to use that one hardly needs the User Manual to use the software.
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