what’s new in psim 2020a...what’s new in psim 2020a psim 2020a includes many new functions and...
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What’s New in PSIM 2020a
PSIM 2020a includes many new functions and improvements. Key new features are:
• New ac sweep block with faster simulation• New script functions• High-frequency PMSM model• New EMI standards added in SIMVIEW• Improved online help• New Hardware Target for auto code generation for TI F28004x DSP• Support of PE-Expert4 for multi-level and multi-modular converters• Link to the new super-fast simulation engine DSIM• Link with RidleyWorks• Export to Typhoon HIL for HIL simulation
What’s New in 2020a
PSIM Improvements
New Script Functions and Improved Help
New script functions (for example, computation functions and FFT function) are added to make PSIM’s script
function even more powerful.
In addition, to make it easier to understand and use script functions, the online help for script is completely
redone. For example, the figure below shows a section of the script code. By highlighting the function
BodePlot and clicking on the F1 key (or go to Help), one can see how this function is defined, and examples
that use this function.
New AC Sweep Block
AC sweep can be time consuming. To speed up the analysis, a new ac sweep block, AC Sweep (2), is added.
Unlike the conventional ac sweep block, this block will run a circuit to the steady state. Then inject the
excitation signal and run a few more cycles before taking the ac sweep measurement.
Examples show that, in certain cases, the new approach can be much faster than the conventional approach.
What’s New in 2020a
Dead Time Implementation
Dead time often needs to be considered in converter control. To make it easier for users, dead time is added
as a parameter for the switch controllers shown below.
The dead time parameter can be set to 0 if desired.
High-Frequency PMSM Model
A PMSM model that takes into account the high-frequency effect is provided. With this model, it is possible to
study the effect of a long ac cable on the voltage spike.
By taking into account inverter stray capacitances, the ac cable, and high-frequency parameters, one can study
how the high dv/dt of the inverter impacts the drive system and how cable parameters can be properly
selected to mitigate the effect.
The figure below, for example, shows an PMSM drive system with an ac cable, and with LISN and output filters.
PWM
Q
Qn
Vcr
QD
freq
delay
Qn
Square WavePWM
Qz
Vcr
Qn
QD
delay
z
Qn
Square Wave
What’s New in 2020a
The waveforms on the left above are without the LISN and inverter output filters; and the waveforms on the
right above are with the filters. EMI standards are superimposed on the waveforms. One can clearly see and
evaluate the influence of filters on the high-frequency components.
To learn more on simulating a motor drive system with the cable and high-frequency model, watch the
webinar below:
Motor drive with cable, non-ideal switches, and high-frequency machine model
Additional EMI Standards Added to SIMVIEW
In order to facilitate EMI analysis, the following additional EMI standards are added to SIMVIEW:
CISPR 25 (Class 1)
CISPR 25 (Class 2)
CISPR 25 (Class 4)
CISPR 25 (Class 5)
CISPR 32/22 (Class A)
CISPR 32/22 (Class B)
These standards are shown in this figure:
What’s New in 2020a
Additional Examples
Additional examples are added to the example set in applications in multi-level converters, LLC resonant
converters, motor drives, etc.
Improved Online Help
The online help has been greatly improved. Additional sections Examples, Applications, Tutorials, and See also,
have been added whenever applicable. Hyperlinks are provided so that one can launch an example schematic
directly, or open a PDF or video tutorial, or go to other relevant elements. This makes it much easier to access
the vast support resources available in PSIM.
For example, the figure below shows a buck converter with the MOSFET IRFP460 from the Thermal Module
element library. The online help page of this element shows the example file, the relevant PDF and video
tutorials, and other Thermal Module elements. All links are clickable.
What’s New in 2020a
SimCoder
F28004x Hardware Target
A new F28004x Hardware Target is provided to support TI F28004x DSP for auto code generation. All major
DSP functions, such as ADC, PWM (including high-resolution PWM), digital input/output, SCI, SPI, CAN,
counter, encoder, etc., can be easily implemented with the built-in blocks.
The image below shows the library blocks in the F28004x Target.
To learn more on how to use the auto code generation feature, watch the videos below:
Getting started with auto code generation Advanced PWM control in auto code generation
What’s New in 2020a
Support of PE-Expert4 for MMC Applications
New functions are added, and existing functions are revised in Myway’s PE-Expert4 hardware platform to
facilitate the implementation of multi-level and multi-modular converter (MMC) applications.
These functions are supported in SimCoder’s PE-Expert4 Target.
For example, the figure below shows a MMC system controlled using the PWM block from the PE-Expert4
Target. PSIM can perform simulation first to validate the control algorithm, and then generate the required
hardware code automatically.
The code generated by PSIM is ready to run on PE-Expert4 as it is, and there is no need for manual coding for
either DSP or FPGA. This greatly accelerates the development process.
What’s New in 2020a
Link with DSIM
DSIM is a new simulation engine designed specifically for power electronics. With a ground-breaking
simulation algorithm and modelling approach, it achieves an unprecedented and unparalleled performance. It
is the fastest simulator in the world and is several orders of magnitude faster than any existing simulation
software.
Moreover, it has the capability to simulate detailed physical device models with minor impact on the
simulation speed.
For example, the following 10-kV 2-MW power converter system consists of 576 switches operating at up to
20 kHz. It only took DSIM 10 sec. to complete a 0.1 sec. simulation. In this case, it is over 1000x faster than
another leading simulation software.
Another example is a 50-kVA solid state transformer. It consists of 24 switches, with detailed physical models
of IGBT and SiC MOSFET. It took DSIM 6 sec. to complete a 0.1 sec. simulation.
The combination of the fast simulation speed and the capability to simulate physical device models makes
DSIM ideally suited for large scale power converter systems, high power converter systems, microgrids, and
any applications that are computation intensive.
DSIM is seamlessly integrated in the PSIM environment. It is available as a stand-alone option or in
combination with PSIM.
To learn more about DSIM, watch the webinars below:
Introduction to DSIM Simulating motor drives with DSIM
Link from RidleyWorks
RidleyWorks is a design software from Ridley Engineering. After completing the design in RidleyWorks, one can
export the design, including the design parameters and schematic that is ready to simulate, into PSIM, as
shown below.
Furthermore, one can perform ac sweep of the circuit in switchmode using the new AC Sweep (2) block. For
this circuit, it took 100 sec. to complete the ac sweep in PSIM, while it took over 3+ hours in LTspice.
With the speed and many more functionalities in PSIM, for example, script functions, one can greatly speed up
the development process.
To learn more on the link, please watch the webinar below:
Introduction to the RidleyWorks link
What’s New in 2020a
Export to Typhoon HIL for HIL Simulation
A function is provided to export the power stage from PSIM to Typhoon HIL for hardware-in-the-loop (HIL)
simulation.
For example, below is a simple 3-phase circuit with a diode bridge.
After simulation in PSIM, one can export this power stage to Typhoon HIL by clicking on the export icon in
PSIM as shown below:
This will automatically compile the power stage into a Typhoon model file. The model can then be loaded into
the Typhoon SCADA tool to run the HIL simulation.
This function provides seamless transition from offline simulation to HIL simulation. To learn more on the
Typhoon HIL export function, please watch the webinar below:
Exporting from PSIM to Typhoon HIL
Summary of Resources:
Webinars:
Motor drive with cable, non-ideal switches, and high-frequency machine model
Introduction to DSIM Simulating motor drives with DSIM
Introduction to the RidleyWorks link Exporting from PSIM to Typhoon HIL
Automatic Code Generation videos:
Getting started with auto code generation Advanced PWM control in auto code generation
What’s New in 2020a
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