Three-Phase-Measurement-Based Load Modeling Technique Using Unbalanced Fault Data

Han, Sang-Il

doi:10.1109/access.2020.2992369

Cited by 3 publications

(4 citation statements)

References 48 publications

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“…∝ ,∝ , ∝ , are quantities of ZIP components of the active power of the whole static load respectively. At the same time, , , are quantities of ZIP components of reactive power of the entire static load respectively [8,17].…”

Section: Fig 1 -Composite Loadmentioning

confidence: 99%

“…Similarly, the dynamic part of the active and reactive and can be represented by the equivalent d-q axes IM equations [8]:…”

Section: Fig 1 -Composite Loadmentioning

confidence: 99%

“…Two different approaches of load modeling were established in numerous literature; component-based and measurement-based methods [8][9][10][11]. Component-based load modeling requires knowledge of individual loads, acquisition of relationship between the voltage and or frequency dependency on real and reactive power of each component, and then cumulate the results for all the components connected to the network.…”

Section: Introductionmentioning

confidence: 99%

“…However, the approach cannot work for large disturbance, and when there is a vast nonlinearity in the system. Contrary to the preceding works, Han [8] present an unbalanced fault data for load modeling, the work formulates a composite load model with separate equations that represent each phase for three different fault conditions considered. The result of the work reduced prediction error for the load model parameters estimation drastically.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

An Investigative Study on Impact of Frequency Dynamics in Load Modeling

Mohammed¹,

Abdulkarim²,

Abubakar³

et al. 2020

EmAIT

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Load modeling plays a significant impact in assessing power system stability margin, control, and protection. Frequency in the power system is desired to be kept constant, but in a real sense, it is not constant as loads continually change with time. In much literature, frequency dynamics are ignored in the formulation of load models for the basic assumption that it does not affect the models. In this paper, the composite load model was formulated with Voltage-Frequency Dependency (V-FD) on real and reactive powers and applied to estimate the load model. 2- Area network 4- machines Kundur test network was used for testing the developed model. The model was trained with measurements from a low voltage distribution network supplying the Electrical Engineering department at Ahmadu Bello University, Zaria. Both training and testing data were captured under normal system operation (dynamics). To evaluate the V-FD model performance, Voltage-Dependent (VD) model was examined on the same measured data. The work makes use of the Feed Forward Neural Network (FFNN) as a nonlinear estimator. Results obtained indicate that including frequency dynamics in modeling active power reduces the accuracy of the model. While in modeling reactive power the model performance improves. Hence, it can be said that including frequency dynamics in load modeling depends on the intended application of the model.

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Section: Fig 1 -Composite Loadmentioning

confidence: 99%

“…Similarly, the dynamic part of the active and reactive and can be represented by the equivalent d-q axes IM equations [8]:…”

Section: Fig 1 -Composite Loadmentioning

confidence: 99%