DSIM: World’s Fastest Simulation for Power Electronics. Period.

DSIM will disrupt the way power electronics are simulated.

DSIM

 

DSIM is fast. Very fast.

It can simulate:

  • Large numbers of switches (1000s)
  • Fast switching (MHz)
  • Non-ideal switch transitions (physical model with parasitics)
  • Scripted, automated simulations

 

Simulate what you only dreamt about

Multiple converters working together
High-speed switching
Switching transient in large systems

DSIM is easily hundreds to thousands of times faster than any other simulation tool on the market. In fact, the larger and more complex the system the faster DSIM is compared to existing tools. Simulations that previously could only be accomplished with expensive dedicated real-time simulators can now be done on your desktop or laptop with DSIM.

Physical switch models with non-ideal switch transitions, non-linear capacitors, parasitic bus inductances, etc can also be simulated without causing the simulation time to exponential increase as is what happens in other tools.

Early adopters of DSIM will have a clear advantage over their competitors.

Features & Benefits

Get faster to market by using your design time more efficiently
Get faster to market by using your design time more efficiently
What used to take hours/days/ weeks to simulate, now takes seconds or minutes
What used to take hours/days/ weeks to simulate, now takes seconds or minutes
Large numbers of switches (1000s) and higher switching speeds supported
Large numbers of switches (1000s) and higher switching speeds supported
More can be done with simulation (more complex systems, more realistic behavior of circuit, more details w/o loss of sim speed)
More can be done with simulation (more complex systems, more realistic behavior of circuit, more details w/o loss of sim speed)
Quickly simulate not only simulate parts but also the whole system working together
Quickly simulate not only simulate parts but also the whole system working together
Get from product idea to prototype without the risk and waste of time and money
Get from product idea to prototype without the risk and waste of time and money
Seamlessly integrated with your known and trusted PSIM software
Seamlessly integrated with your known and trusted PSIM software
Automatically, simulate 1000s of test scenarios with built-in scripting capability
Automatically, simulate 1000s of test scenarios with built-in scripting capability

DSIM Versions

DSIM Lite: Only ideal switches (no detailed, non-ideal switches); Limit of 15 switches; no c block; limits to scripting functions

DSIM Pro: Includes detailed switches (non-ideal switches); Limit increase to 50 switches

DSIM Enterprise: Unlimited, no restrictions

Applications

DSIM Microgrid

Microgrid

The current meta for the simulation and design of microgrids requires the use of expensive realtime hardware or the use of average models in a tool like PSIM. Both approaches require compromise and abstraction from the desired system. Realtime simulation hardware is expensive and limits things like switching speed, the number of switches, machine models, etc. to maintain realtime fidelity. The offline approach with average models or simplified sub-systems can hide fundamental underlying issues.

The largest microgrid simulated with DSIM so far has been a 1200 switch 10 unit microgrid where the inverters were defined as cascaded H-bridge MMCs. 150ms of simulation with DSIM took 2 minutes 22 seconds, the same system in PSIM would have taken 138 days (4.6 months).

Motor Drives

Motor drives are typically long simulations. There is no easy way to avoid this because there are two time constants that are opposite to each other. The fundamental frequency of the motor drive, which defines the electrical/mechanical frequency relationship, combined with the switching speed requires a small timestep and long simulations for the motor to reach the desired torque and shaft speeds. With the efficiency boost and power handling boost provided by multi-level inverters the number of switches required to simulate is also increasing. Add in the need to understand the switching transient, parasitic interactions, and deadtime, an engineer will easily require a very small time step which will quickly push simulation lengths into hours. With DSIM you’ll be done in a few minutes.

DSIM Motor
DSIM 200 kHz Resonant Converter

High-Frequency Converters

Since DSIM can easily handle many hundreds to thousands of switches, it makes sense that it can also easily handle very fast switching. With GaN and SiC devices pushing switching speeds in the 10s or 100s of MHz, even simple converters can take a very long time to simulate with traditional tools. Adding in a physical switch model with traditional tools will just slow things down further. Get results in a few minutes by using the DSIM tool.

Automated Test Scenarios and Scripting

A quick simulation with a regular offline simulator may take a second or two, but if the simulation is required to be run 1000 times through various combinations of component tolerances and device operating scenarios those seconds will quickly add up into multiple hours. Get results in a few minutes with DSIM, drastically reducing the iteration and design time of your projects.

How does DSIM work?

In DSIM, the power electronics system is represented in blocks:

  • power circuit,
  • control circuit

The power circuit usually consists of switching devices, RLC branches, and transformers. For the switching devices, DSIM uses pre-built converter switch blocks which are have optimized solve methods.

DSIM does support bi-directional switches, which should be used for things like switching in load or creating faults.

The control circuit must be open-loop or a closed-loop digital control system. DSIM is not supporting s-domain control at this time.

Comparison table of DSIM Lite, Pro, Enterprise versions
Version Limits
Lite Only ideal switches (no detailed or non-ideal switches) and limited to 15 switches
Pro Includes detailed (non-ideal) switches and limit increased to 50 switches
Enterprise No Limits or restrictions

DSIM uses a Discrete State Event-Driven (DSED) simulation engine and an innovative modeling approach that fully exploits the characteristics of power electronics systems.

This combination allows for an unprecedented and unparalleled simulation speed that is several hundred or thousands of times faster than any existing offline simulation software out there.

Moreover, its ability to simulate large converter systems and at the same time switch transients is unique and ideally suited for large scale power converter systems, high power converter systems, microgrids, and any other system that is computation intensive.

Request DSIM Trial



Who is behind DSIM?

DSIM is a simulation software that was specifically designed for power electronics. The developers of this amazingly fast simulation tool are members of collaborative teams at Tsinghua University and DSIM Technology Co.

Powersim Inc. is the exclusive distributor of DSIM in North & South America, Hong Kong, Singapore, Africa, Australia, and New Zealand. Find other distributor info HERE.

Accelerate innovation.

Simulate power electronics with fast and accurate software, as well as deep technical support.  Get reliable results and move your innovations forward.