DC Optimal Power Flow Using Pyomo

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PyoPower
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Oct 18, 2024

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DC-Optimal Power Flow (DC-OPF) is a simplified form of the Optimal Power Flow (OPF) problem, commonly used in power system analysis to optimize the operation of an electrical grid. In DC-OPF, the system is modeled with several approximations to make the problem easier to solve, including linearizing the power flow equations and ignoring losses and reactive power. The objective is to minimize the total generation cost while satisfying operational constraints like power balance, generation limits, and line capacity limits. DC-OPF is widely used for its computational efficiency and ease of implementation in large-scale power systems, despite the approximations involved.


Pyomo, an open-source optimization library in Python, can be used to solve DC-OPF problems by modeling them as a linear programming (LP) or mixed-integer linear programming (MILP) problem. To solve DC-OPF using Pyomo, one first defines the decision variables (e.g., generation levels at each bus), the objective function (typically minimizing generation costs), and the constraints (e.g., power balance, line limits, and generator capacities). Pyomo allows you to define these components in a modular way using Python, and then leverages solvers like GLPK, CPLEX, or Gurobi to find an optimal solution.

1- An open source DC-OPF code using Pyomo
2- A detailed formulation file
3- Simple examples considering congestion in transmission lines

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  • 📁 DC Optimal Power Flow Using Pyomo

Installation Instructions

1- Use the .py file in any Python script environment
2- Copy and past the .dat files in the same Python project folder

Change and Adaptation Instructions

1- Basic Python coding knowledge
2- Installed Pyomo package in the Python script environment
2- A linear solver (glpk, cplex, etc.)

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