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Load is one of the most basic parts of power systems. As power system load increases steadily and related problems like voltage stability tend to be severer, load modeling is becoming more and more important in power system stability analysis and control. However, because of load characteristics like non-linearity, randomness and time-variation, load modeling and parameter identification still remain...
Load is one of the most important parts of power system and imposes great impact on stability of the system. Proper modeling and parameter identification of load are instructive for power system stability study and control. However, because of the nonlinearity, randomness and time-variation, load modeling and parameter identification remain a big problem in power system simulation and stability analysis...
In this paper, we propose a new component-based dynamic model, in which the parallel connection of induction motor and constant-impedance is applied to describe the load of power network. The original data for parameter identification is derived from network dynamics calculations. Consider the compositions of load are varying with time, season and weather, the different incentives and responses can...
Essentials of power system dynamic behavior, the character and difference index of disturbed trajectories are summed up in this paper. The model verification and parameter identification methods based on difference index of disturbed trajectories are reviewed, as well as the existed problems and possible development. The index should not be based on conventional signal processing technologies only;...
For current practices on the measurement-based load modeling, the dispersity of the identification results is an obstacle in the application of the load model. Based on the improvement of the basic genetic algorithm and the sensitivity analysis of composite load model parameters, this paper proposed a new identification strategy, in which the majority of parameters are fixed and only the parameters...
The load places a very important role in power system stability. It greatly affects the system stability assessment results of a power system to a large extent. This paper focuses on the realization of aggregate load area model (ALAM) analysis. The ALAM model is based on the output of a power system wide area measurement system (WAMS). The parameter identifiability regarding the ALAM is studied in...
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