Sumários
Types of electric buses
23 setembro 2014, 09:30 • Luis Marcelino Ferreira
What’s a load bus? What’são a generator bus?
Two kinds of load buses and combinations therof.
Passive loads and active loads
Admittance model vs PQ
Active power, reactive power for generators
Where they come from and how they are regulated
Generators can fix voltages, within limits
Two kinds of generator buses: V and PV
The need for a reference
Equations for a 2 bus system and 2 generator buses
Solution by iterative Jacobi
Power flow for a two-bus system: problem and solution
18 setembro 2014, 11:00 • Luis Marcelino Ferreira
Line models
Variables, parameters, specifications
Power flow equations for a two-bus system
Use of complex arithmetic
Gauss-Jacobi
Development into real arithmetic
Solution of the corresponding biquadratic equation
Solution analysis and special cases
Multiple solutions and no solutions: what makes what
Solution curves
Generalization and complexity
Introduction
16 setembro 2014, 09:30 • Luis Marcelino Ferreira
Network analysis (power flow)
Short circuit analysis
State estimation
Basics
A two bus power flow problem
Class 1A
16 setembro 2014, 08:00 • Luis Marcelino Ferreira
Objective of practical classes.
A simple problem: 2 bus system power flow
Two-bus system with voltage specified at the generator bus and powers specified at load bus