SimPowerSystems™ 4.6

Latest Features

Version 4.6

Released: 01 Mar 2008
 

Version 4.6, part of Release 2008a, includes the following enhancements:

• New Fuel Cell Stack block
• Ability to specify initial conditions for the PM Synchronous Machine block
• Multiple discretization rates within a model now available with certain blocks

See the Release Notes for details.

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Version 4.5

Released: 01 Sep 2007
 

Version 4.5, part of Release 2007b, includes the following enhancements:

• Five new blocks: Battery, Stepper Motor, Grounding Transformer, Three-Phase Transformer Inductance Matrix Type (Two Windings), and Three-Phase Transformer Inductance Matrix Type (Three Windings)
• New measurement option in the PI Section Line block for measuring voltages and currents at the start and end of each pi-section

See the Release Notes for details.

Version 4.4

Released: 01 Mar 2007
 

Version 4.4, part of Release 2007a, includes the following enhancements:

• New Brushless DC Motor Drive block

See the Release Notes for details.

Version 4.3

Released: 01 Sep 2006
 

Version 4.3, part of Release 2006b, includes the following enhancements:

• New Mechanical Input parameter for the AC Electric Drive blocks, for connecting SimMechanics or SimDriveline to electric drives by specifying motor speed as block input

See the Release Notes for details.

Version 4.2

Released: 01 Mar 2006
 

Version 4.2, part of Release 2006a, includes minor enhancements. See the Release Notes for details.

Version 4.1.1

Released: 01 Sep 2005
 

Version 4.1.1, part of Release 14 with Service Pack 3, includes bug fixes. See the Release Notes for details.

Version 4.1

Released: 12 May 2005
 
Version 4.1, an update to MathWorks Release 14 with Service Pack 2, includes the following enhancements:

• Enhanced capabilities for the simulation of systems with power electronics enable switching of two or more devices in the same time step.
• Average Value methods have been added to the electric drive models, improving computational speed by a factor of up to 10. This feature is available through models located in the Applications library and is suitable for real-time code generation for HIL applications.
• Switched Reluctance Motor and Single-Phase Asynchronous Machine models have been added to the Machines library.
• The core saturation can now be specified for the Asynchronous machine block when the block is used in a phasor simulation.
• The RLC branch blocks can now be reconfigured, through a simple parameter selection, to represent pure resistance, inductance, capacitance, or any combination of the three.

See the Release Notes for details.

Version 4.0.1

Released: 07 Mar 2005
 

Version 4.0.1, part of MathWorks Release 14 with Service Pack 2, includes bug fixes. See the Release Notes for details.

Version 4.0

Released: 22 Sep 2004
 
SimPowerSystems extends Simulink with tools for modeling and simulating basic electrical circuits and detailed electrical power systems. These tools help you to efficiently model the generation, transmission, and distribution of electrical power, and its conversion into mechanical power. SimPowerSystems 4 introduces new application libraries that include:

• Models of electric drives for actuating mechanical rotational motion. These models include detailed descriptions of the motor, converter, and controller for each drive model.
• Models of flexible AC transmissions systems (FACTS)
• Models of distributed resources for common wind-power generation systems

Version 3.1

Released: 02 Jun 2004
 

• A new menu of presets in the machine models lets you select a motor by its power class. SimPowerSystems automatically assigns the parameters of the machine with values typical of the selected power class. You can display the assigned parameters through the block properties.
• The Simulink signal going out from the measurement output of machine blocks has been re-organized as a bus signal, enabling you to use the Bus Selector block from Simulink to select the machine measurements.
• A three-phase harmonic filter block and a multi-windings transformer block have been added.
• The Powergui block features a new tool to compute the RLC parameters of an overhead transmission line from its conductor characteristics and tower geometry.

Version 3.0

Released: 22 Sep 2003
 

Terminal Ports and Connection Lines

SimPowerSystems 3.0 introduces the terminal port, specific to the electrical domain of Physical Modeling and different from the Simulink input and output ports. It is represented on blocks by a small white square. You can branch the electrical connection lines connecting such terminal ports. The electrical connection lines of the Physical Modeling domain, unlike Simulink signal lines, are intrinsically nondirectional.

Separating SimPowerSystems and Simulink Lines and Ports

In the previous versions of SimPowerSystems and Power System Blockset, the electrical block ports were modeled by Simulink input and output ports. The distinction between Simulink ports and electrical terminal ports is now clearly defined. You cannot connect terminal ports to Simulink input and output ports. For example, you cannot by mistake connect a Simulink Scope block directly to the phase terminals of a Synchronous Machine block. You must also keep Simulink signal lines and SimPowerSystems electrical connection lines separate. You cannot connect one type of line to the other by branching.

Blocks That Interface Between Simulink and SimPowerSystems Domains

The blocks of SimPowerSystems 3.0 can have only terminal ports or only Simulink ports, or both types. Blocks such the Synchronous Machine block and the Thyristor block feature both port types. Such blocks serve as interfaces between the part of your model connected by Simulink signal lines and the part connected by electrical connection lines.

Renamed SimPowerSystems Commands

In SimPowerSystems 3.0, the analysis commands of earlier SimPowerSystems and Power System Blockset versions have been renamed.

power_analyze

power_analyze is the new name for the old power2sys command. With it, you can analyze models built with the new block library of SimPowerSystems 3.0. You should use the power2sys command only for old models built with previous versions of SimPowerSystems or Power System Blockset.

power_init

power_init is the new name for the old powerinit command. You use it exactly the same way you would use the powerinit command.

power_statespace

power_statespace is the new name for the old circ2ss command. You use it exactly the same way you would use the circ2ss command.

Upgrading from Version 2 to Version 3

SimPowerSystems3 is not compatible with previous versions of the product, but provides tools that let you work with models built using previous versions. You can convert models constructed from the version 2.x library to the new block library and interface of version 3. This conversion enables you to take full advantage of current and future improvements to SimPowerSystems.

SimPowerSystems3 includes the version 2.3 block library. You can open and run version 2 models, use the old version 2 commands on version 2 models, and access the version 2.3 documentation.