The aim of the paper is to examine up to which extent the so-called generic non-linear dynamic (GNLD) load models can replace more detailed models for representing loads, composed mostly by induction motors, both in short and in long-term voltage-collapse numerical simulations. After a review of the main characteristics of one GNLD model, namely the so called adaptive load model, a model refinement is proposed based on a more close reproduction of Q-V characteristics of induction motors. A power system often used in the literature is chosen as base case. In it, the two GNLD models have been introduced, in lieu of the residential and commercial load of such a system. For comparative purposes, contingency conditions leading the system to either short and long term voltage collapse are simulated.
Generic Dynamic Load Models in Long-Term Voltage Collapse Tme-Simulation
CALDON, ROBERTO;
1997
Abstract
The aim of the paper is to examine up to which extent the so-called generic non-linear dynamic (GNLD) load models can replace more detailed models for representing loads, composed mostly by induction motors, both in short and in long-term voltage-collapse numerical simulations. After a review of the main characteristics of one GNLD model, namely the so called adaptive load model, a model refinement is proposed based on a more close reproduction of Q-V characteristics of induction motors. A power system often used in the literature is chosen as base case. In it, the two GNLD models have been introduced, in lieu of the residential and commercial load of such a system. For comparative purposes, contingency conditions leading the system to either short and long term voltage collapse are simulated.
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