Approximate Load Models for Conic OPF Solvers

The global optimum of the optimal power flow (OPF) problem can be sought in various practical settings by adopting the conic relaxations, such as the second order cone programs (SOCPs) and semi-definite programs (SDPs). However, the ZIP (constant impedance, constant current, constant power) and expo...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power systems 2021-01, Vol.36 (1), p.549-552
Main Authors: Nazir, Firdous Ul, Pal, Bikash C., Jabr, Rabih A.
Format: Article
Language:English
Subjects:
Alliances
Approximation
Computational modeling
Exponential load model
Impedance
Load modeling
optimal power flow
Optimization
Power demand
Power flow
Programming
Reactive power
second order cone programming
semi-definite programming
Solvers
Static loads
Voltage control
ZIP load model
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The global optimum of the optimal power flow (OPF) problem can be sought in various practical settings by adopting the conic relaxations, such as the second order cone programs (SOCPs) and semi-definite programs (SDPs). However, the ZIP (constant impedance, constant current, constant power) and exponential load models are not directly amenable with these conic solvers. Thus, these are mostly treated as constant power loads in the literature. In this letter, we propose two simple methods to approximate these static loads with good accuracy. The proposed methods perform much better than the traditional constant power approximation.
ISSN:0885-8950
1558-0679
DOI:10.1109/TPWRS.2020.3029370