Constructing transmission line current constraints for the IEEE and polish systems

Autor: Paula Lipka, Mehrdad Pirnia, Richard P. O'Neill, Clay Campaigne, Shmuel S. Oren
Rok vydání: 2016
Předmět:
Zdroj: Energy Systems. 8:199-216
ISSN: 1868-3975
1868-3967
Popis: All power system operators ensure their systems adhere to thermal limits on transmission lines in order to avoid line deformation or stability problems. The IEEE test problems do not include data on thermal limits for the 14-, 57-, 118-, and 300-bus systems. The Polish systems contain limits on the apparent power on the line, but these apparent power limits needs to be translated to current limits to solve for the optimal power flow using a current-voltage formulation. The purpose of this paper is to develop new test problems that contain current constraints. It presents a simple method for constructing these current magnitude constraints. This paper finds limits on the maximum allowable current magnitude that result in a feasible solution for the 14-, 30-, 57-, 118-, and 300-bus IEEE test problems. For each test problem, a single limit is applied to all lines that makes the optimal solution without these limits infeasible. For each problem, tight and loose limits on the current magnitude are developed. The resulting problems are solved using the current voltage formulation. Additionally, apparent power limits on the Polish systems are converted to limits on current. Including these constraints in the ACOPF increases power production costs (the objective function) up to 14 %.
Databáze: OpenAIRE