LITS.jl

LITS.jl is a Julia package for doing Power Systems Dynamic Modeling with Low Inertia Energy Sources.

Installation

You can install it by typing

pkg> add LITS

Usage

Once installed, the LITS package can by used by typing:

using LITS

Structure

The following figure shows the interactions between LITS.jl, PowerSystems.jl, DifferentialEquations.jl and the integrators. The architecture of LITS.jl is such that the power system models are all self-contained and return the model function evaluations. The Jacobian is calculated through DifferentialEquations.jl's common-interface enabling the use of any solver available in Julia. Considering that the resulting models are differential-algebraic equations (DAE), the implementation focuses on the use of implicit solvers, in particular SUNDIALS since it has exceptional features applicable to large models — for instance, interfacing with distributed linear-solvers and GPU arrays.

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Contents

• Tutorial: One Machine against Infinite Bus (OMIB)
• Step 1: Package Initialization
• Step 2: Data creation
• Step 3: Initializing the problem
• Step 4: Build the Simulation
• Step 5: Exploring the solution
• Tutorial: Dynamic Lines
• Step 1: Package Initialization
• Step 2: Data creation
• Step 3: Initializing the problem
• Step 4: Build the Simulation
• Step 5: Explore the solution
• Network model
• Static Branches (or simply Branches)
• Dynamic Branches
• Generator Models
• Machines
• Shafts
• Automatic Voltage Regulators (AVR)
• Power System Stabilizers (PSS)
• Prime Movers and Turbine Governors (TG)
• Reference
• Inverter Models
• DC Source
• Frequency Estimators
• Outer Loop Controls
• Inner Loop Controls
• Converter
• Filters
• Reference