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Metodologia de análise do colapso de tensão em tempo real considerando limites de potência ativa e reativa de geradores
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Sistemas de EnergiaUTFPR, 2017-09-29)
Due to the high energy demand and the high complexity of today's interconnected Electrical Power Systems (SEPs), it is becoming increasingly important for the system operator to know the current state of the SEP. In addition, ...
A vector control strategy to eliminate active power oscillations in four-leg grid-connected converters under unbalanced voltages
(IEEE, 2020)
The problems associated with active power oscillations (APOs) in grid-connected converters are well-known. Imbalances in the grid usually produce double-frequency oscillations in the dc-link voltage and current which could ...
Multi-area decentralized optimal VAr planning using the Dantzig-Wolfe decomposition principle
(2011-05-31)
This paper presents a new methodology for solving the optimal VAr planning problem in multi-area electric power systems, using the Dantzig-Wolfe decomposition. The original multi-area problem is decomposed into subproblems ...
Multi-area decentralized optimal VAr planning using the Dantzig-Wolfe decomposition principle
(2011-05-31)
This paper presents a new methodology for solving the optimal VAr planning problem in multi-area electric power systems, using the Dantzig-Wolfe decomposition. The original multi-area problem is decomposed into subproblems ...
Reactive power planning under conditional-value-at-risk assessment using chance-constrained optimisation
(Inst Engineering Technology-iet, 2015-02-19)
This study presents a risk-assessment approach to the reactive power planning problem. Chance-constrained programming is used to model the random equivalent availability of existing reactive power sources for a given ...
A Multi-Stage Stochastic Non-Linear Model for Reactive Power Planning Under Contingencies
(Institute of Electrical and Electronics Engineers (IEEE), 2013-05-01)
This paper presents a model for long-term reactive power planning where a deterministic nonlinear model is expanded into a multi-stage stochastic model under load uncertainty and an N-k contingency analysis. Reactive load ...
Reactive power planning under conditional-value-at-risk assessment using chance-constrained optimisation
(Inst Engineering Technology-iet, 2015)
Reactive power planning under conditional-value-at-risk assessment using chance-constrained optimisation
(Inst Engineering Technology-iet, 2015)
Improving passive filter compensation performance with active techniques
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2003)
This paper presents the performance analysis of a hybrid filter composed of passive and active filters connected in series. The analysis is done by evaluating the influence of passive filter parameters variations and the ...