Title :
The power buffer concept for utility load decoupling
Author :
Logue, Daniel ; Krein, Philip T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
This paper introduces a system control concept for rectifier/inverter sets. The objective is to create a “power buffer” between a utility source and the inverter load to shield the distribution system against the adverse effects of nonlinear loading, and the load against transients from the distribution source. The power buffer interface temporarily modifies the effective loading seen by the distribution system to one that is linear, such as a constant resistance or current source. This provides stability improvement during utility system transients. During this time, the power mismatch between source and load is supplied by a capacitive or battery storage element. Simulation within in the MATLAB/SIMULINK environment and experimental evaluation of a simple single-phase power buffer validate the concept
Keywords :
AC-DC power convertors; DC-AC power convertors; control system analysis computing; electricity supply industry; invertors; load (electric); power distribution control; power distribution faults; power system analysis computing; power system transient stability; rectifying circuits; MATLAB/SIMULINK environment; computer simulation; control simulation; distribution system; power buffer concept; power buffer interface; rectifier/inverter sets; single-phase power buffer; stability improvement; system control concept; utility load decoupling; utility system transients; Batteries; Control systems; Frequency; Inverters; Power electronics; Power harmonic filters; Power system stability; Pulse width modulation; Rectifiers; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual
Conference_Location :
Galway
Print_ISBN :
0-7803-5692-6
DOI :
10.1109/PESC.2000.879945
