PSIM simulation engine questions
Category - 5 questions
Q: What are the main differences between PSIM and SPICE-based simulation programs?
Typically a PSIM simulation will be significantly faster without any convergence or solve problems. Read more...
Q: What numerical algorithm does PSIM use?
These state space matrices introduce convergence problems when there are large derivatives. Read more...
Q: Can PSIM read SPICE files or import SPICE models, or vice versa?
Even though PSIM netlist files are similar to SPICE netlist, the way that a circuit is set up and solved is different. Read more…
Q: Can PSIM simulate digital control scheme?
A: Yes. The Digital Control Module in PSIM provides a number of function blocks, such as zero-order hold, unit delay, z-domain transfer function blocks, digital FIR and IIR filters, circular buffer, quantization block, and other blocks, which can be used to implement a digital control scheme. Further, an AC sweep with digital elements can be performed of a topology to determine the impacts of digital delay on the phase of plant response. This information is invaluable when implementing a control scheme in the z-domain.
With PSIM one can study the effect of different sampling rates, investigate the quantization effect of the A/D conversion with different number of bits, and evaluate the performance of a digital filter.
PSIM provides in depth support for digital control applications with the following modules:
The SimCoder + targets allow a control algorithm to be automatically converted into C code that is ready to run on a target DSP - F2833x, F2803x, F2802x, F2806x. The Processor-In-the-Loop, PIL, module allows you to run your control scheme on a TI MCU while it controls your power stage defined in PSIM.
Q: How are the devices modelled in PSIM?
The ideal models are best suited for system-level simulations while the level-2 models can be used as a device level simulation with results comparable to a SPICE level simulation. Read more...