Simscape Power Systems™ (formerly SimPowerSystems™) provides component libraries and analysis tools for modeling and simulating electrical power systems. It includes models of electrical power components, including three-phase machines, electric drives, and components for applications such as flexible AC transmission systems (FACTS) and renewable energy systems. Harmonic analysis, calculation of total harmonic distortion (THD), load flow, and other key electrical power system analyses are automated, helping you investigate the performance of your design. Simscape Power Systems helps you develop control systems and test system-level performance. You can parameterize your models using MATLAB® variables and expressions, and design control systems for your electrical power system in Simulink®. You can integrate mechanical, hydraulic, thermal, and other physical systems into your model using components from the Simscape™ family of products. To deploy models to other simulation env

Application-specific models, including common AC and DC electric drives, flexible AC transmission systems (FACTS), and renewable energy systems Discretization and phasor simulation modes for faster model execution Ideal switching algorithm for accelerated simulation of power electronic devices Analysis methods for obtaining state-space representations of circuits and computing machine load flow Basic models for developing key electrical technologies MATLAB® based Simscape™ language for creating custom component models Support for C-code generation (with Simulink Coder™) Reference: SimPowerSystems

Power Generation Simscape Power Systems™ provides models of standard and industry-specific components for power generation systems. These models help you size components and investigate performance and stability of electrical networks. Generators Simscape Power Systems provides synchronous and asynchronous machines that you can use to model generators in your system. You can enable nonlinear effects such as saturation. Standard and simplified models let you select the level of fidelity appropriate for your task. The models offer multiple parameterization methods that let you enter the values you have available, and the blocks calculate per-unit base values for you. GasTOPS Models Propulsion System with Simscape Power Systems (User Story)GasTOPS cut model development time by 65%, verified controller behavior during system faults, and reused the model for desktop simulation, HIL tests, and a training simulator. Simscape Power Systems model (left) of an asynchronous motor an

Power Transmission Simscape Power Systems enables you to model complete electrical networks and grids so you can use simulation to explore and improve grid stability. FACTS Models of power electronics-based FACTS systems help you use simulation to improve power transmission capabilities of your networks. You can add devices such as static VAR compensator (SVC) and unified power flow controller (UPFC) to your grid models to control power flow, improve transient stability, and relieve power congestion in a transmission system. Sandia National Laboratories Integrates Photovoltaics with Microgrid (User Story)Engineers at Sandia reduced model development time by 80%, lowered the cost of the final system by $200,000, and validated their model against field data. Control of Power Flow Using a Unified Power Flow Controller (Example)Unified Power Flow Controller (UPFC) used to relieve power congestion on a 500/230 kV grid. Transmission Lines Simscape Power Systems provides

Power Consumption Simscape Power Systems enables you to model the loads in your system at the desired level of fidelity. In addition to generic components, it provides a library of electric drives. It combines the key components (machines, power converters, and controllers) into a single block with an interface that helps you modify key parameters and add or neglect switching effects. Power Converters Simscape Power Systems includes power converter models. It also provides rectifiers,inverters, and converters with common topologies such as buck and boost. These converters use piecewise linear models of the power electronic devices for efficient simulation, and these device models are included so that you can model custom power converter topologies. The power electronic devices can include heat generation by the device and heat transferbetween the device and the environment. Alstom Generates Production Code for Power Converter Controller (User Story)Alstom engineers reduce

Simulation and Analysis With Simscape Power Systems, you can use the simulation method that best matches the task you need to perform. Many key power system analyses are automated to help you quickly and accurately assess the performance of your design. Simulation Methods Simscape Power Systems enables you to simulate your model with continuous, discretized, or phasor methods. Continuous methods perform highly accurate simulations of power system models, varying the step size to capture the dynamics of your system. With discrete methods, you can control the precision of your simulation by selecting the size of the time step. Phasor simulation replaces the differential equations representing the network with a set of algebraic equations at a fixed frequency, enabling transient stability studies of systems with multiple machines. You can choose the method that best meets your needs. Options for continuous, discrete, or phasor simulation mode (left) to analyze transient effects or s

Converting to C Code You can convert Simscape Power Systems models into C code using Simulink Coder. Converting Simscape Power Systems models to C code enables them to be used for tasks such as HIL testing and optimization where batch simulations are performed. Converting to C code also enables you to share protected models. Testing Without Hardware Prototypes Simscape Power Systems models enable you to test embedded control algorithms and controller hardware without using hardware prototypes. In addition to software-in-the-loop (SIL) and processor-in-the-loop (PIL) tests, converting your Simscape Power Systems models to C code lets you run hardware-in-the-loop (HIL) tests. This enables you to test embedded controllers without endangering equipment and persoel, and increases your confidence that the system will behave as specified when you coect the controller to the real system. Workflow for testing embedded software and hardware without prototypes. You convert the algorit

The core of Simpow® software for simulation of power systems consists of a robust numerical technique characterised by high accuracy, efficient event handling, variable and/or fixed time step. This robust core ensures the user reliable system analysis results. With Simpow the user is able to conduct simulations of both electromechanical and electromagnetic transients in phasor and instantaneous value mode as well as easily switch between the two different modes. Result presentation graphics feature: time diagrams, variable versus variable diagrams, frequency diagrams, single-lines diagrams and ASCII tables. Build the network with the aid of a model library comprising standard and most utilised network elements or use DSL – a modelling language for user-defined elements. Highlights in Simpow v11.0 •New window-based RunTime GUI •New Diagram-plotting •New Single Line Diagram •More models: –Surge arrester –Full Power Converter Wind Turbine –HVDC Light Open Model Version

General info about Simpow

Click on the above links to download the Simpow release (Adobe PDF File Format)

SIMPOW – Power-flow analysis module The power-flow module simulates steady-state symmetrical conditions, considering the power-frequency voltages and currents. A single-phase model using positive-sequence quantities represents the power system. The node voltages, injected active and reactive power and some other variables give the state of the system. Either the Dynamic method or the Newton-Raphson method is the numerical technique employed to solve the power flow. A variety of constraints on variables and limits can be specified. Multi power-flow runs are defined by run instructions in a Command File. User defined modelling in power-flow computations is possible with the modelling language Dynamic Simulation Language, DSL. SIMPOW – Dynamic simulation module In Simpow there are two dynamic simulation modes in Simpow: Transient stability and instantaneous value mode. Each mode can be characterised as dynamic simulation of a power system under steady state or disturbed symmetrical o