SimPowerSystems
8Pages

SimPowerSystems Model and simulate electrical power systems SimPowerSystems™ provides component libraries and analysis tools for modeling and simulating electrical power systems. The libraries offer 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. SimPowerSystems models can be used to 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 add mechanical, hydraulic, pneumatic, and other components to the model using Simscape™ and test them together in a single simulation environment. To deploy models to other simulation environments, including hardware-in-the-loop (HIL) systems, SimPowerSystems supports C-code generation. SimPowerSystems was developed in collaboration with Hydro-Québec of Montreal. Learn more about physical modeling. Key Features ▪ Libraries of application-specific models, including models of 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 load flow for machines ▪ Basic models for developing key electrical technologies ▪ Ability to extend component libraries using the Simscape language ▪ Support for C-code generation

SimPowerSystems model (left) of an asynchronous motor and diesel-generator uninterruptible power supply (UPS). The Simulink scope (right) shows stator currents and speed of the asynchronous machine. SimPowerSystems supports the development of complex, self-contained power systems, such as those in automobiles, aircraft, manufacturing plants, and power utility applications. The models you create support your entire development process, including hardware-in-the-loop simulations. Modeling Electrical Power Systems SimPowerSystems provides libraries for modeling electric machines, transformers,...

Eiie Edit yiew Display Diagram Simulation Analysis £ode Icois yelp Circuit Permanent Magnet Encoder Synchronous Motor SimPowerSystems model (left) of a permanent magnet synchronous motor and inverter sized for use in a typical hybrid vehicle. The model includes the electrical connections (single-phase and three-phase) and signal flow connections, and the scope (right) shows the stator currents in the PMSM. Creating Custom Components You can add components from other physical modeling products to your SimPowerSystems model. The Foundation libraries in Simscape contain blocks in hydraulic,...

file Edit ^iew Qfsplay Diag[am Simulation Analysis £ode Jock yelp Permanent Magnet Synchronous Motor % Electrical equations vd == i_d*Rs + i_d.der*Ld - nPolePairs*angular_velocity*psiq; vq == i_q*Rs + i_q.der*Lq + nPolePairs*angular_velocity*psid; % Mechanical torque torque == -3/2*nPolePairs*(i q*psid - i d*psiq); Simscape model file Custom Simscape implementation of a permanent magnet synchronous motor, used as a generator. The MATLAB editor shows Simscape language source code of the electrical and mechanical equations, and the scope shows the three-phase AC currents and DC current at the...

1^1 Block Parameters: powergui PSB option menu block (mask) (link) Set simulation type, simulation parameters, and preferences Solver Load Flow Preferences Simulation type: □ Enable use of ideal switching devices SimPowerSystems interface for selecting simulation options. Continuous, discrete, and phasor simulation modes are supported, with the option of enabling an ideal switching algorithm for faster simulation. Analyzing Models SimPowerSystems provides tools for analyzing models, visualizing simulation results, and calculating advanced block parameters, enabling you to: ■ Display...

D Powergui FFT Analysis Tool. Fite Edit View Insert Tools Desktop Window Help FFT window: 1 of 200 cycles of selectee signal Harmonic order Available signals Max frequency forTHD computation: Nyquist frequency Display style: Frequency axis; Harmonic order The SimPowerSystems FFT analysis tool. The frequency spectrum of a voltage waveform is displayed, and power quality is measured by calculating total harmonic distortion. Deploying Models You can deploy SimPowerSystems models using code generated with Simulink Coder™. The generated code lets ■ Run hardware-in-the-loop simulations by...

Working with SimPowerSystems Models Model Developer Model User (Purchases Simscape and SimPowerSystems) (Purchases Simscape) Simulate Log data or change visualization Change numerical parameters Generate code with Simulink Coder Change block parameterization options Make or break physical connections SimPowerSystems in Academia You can use SimPowerSystems to teach how theory relates to electrical network behavior. Students can analyze large and complex systems, and the simulation results from SimPowerSystems simulations give students a better understanding of what can happen in a true...

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