Análise e implementação de retificadores PWM trifásicos com resposta de tempo mínimo utilizando desacoplamento por retroação de estados
Robinson Figueiredo de Camargo,Fernando Botteron,Marcelo Hey Duarte,Jeferson Marques,Humberto Pinheiro +4 more
- Vol. 16, Iss: 4, pp 503-513
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TLDR
In this paper, a discrete model for synchronous frame is developed for three-phase PWM rectifier with an L filter, which takes into account the computational delays presents in the discrete implementation.Abstract:
This paper develops a systematic design procedure based on discrete decoupling by state feedback applied to three-phase PWM rectifiers. A discrete model for synchronous frame is developed for three-phase PWM rectifier with an L filter. This model takes into account the computational delays presents in the discrete implementation. Deadbeat response is obtaining without the requirement of a current controller in the axis d. Moreover, discrete servo controllers to ensure unit displacement power factor and regulated DC link voltage are developed. Finally, experimental results are presented to demonstrate the feasibility of the proposed procedure, algorithms and the performance of the overall system.read more
Citations
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Journal ArticleDOI
New Synchronization Method For Three-phase Three-wire Pwm Converters Under Unbalanced And Distorted Grid Voltages
TL;DR: A new open-loop synchronization method for three-phase three-wire PWM converters connected to the utility grid that has a good performance under unbalanced and highly distorted grid voltages and a frequency adaptation algorithm is proposed for applications where large frequency variations are expected, such as in weak grids.
Proceedings ArticleDOI
Comparison of Six Digital Current Control Techniques for Three-Phase Voltage-Fed PWM Converters Connected to the Utility Grid
TL;DR: In this article, a comparative analysis of six digital current control techniques applied to three-phase voltage-fed PWM converters connected to the utility grid is presented, where basic requirements are established and comparison criteria are used to justify the selected current control technique.
Proceedings ArticleDOI
New Synchronization Method for Three-Phase Three-Wire PWM Converters under Unbalance and Harmonics in the Grid Voltages
TL;DR: A new open-loop synchronization method for three-phase three-wire PWM converters connected to the utility grid that has a good transient performance due to both angle and frequency disturbances, as well as input currents with low total harmonic distortion when used to synchronize PWM rectifiers, even under unbalanced and highly distorted grid voltages.
Proceedings Article
Digital control of three-phase PWM inverter with LC filter
TL;DR: A digital control algorithm for the three-phase sinusoidal voltage inverter with an output LC filter with precise decoupling of the d-q components has been developed and is expected to be useful for direct digital control of large-capacity sinusoid voltage inverters using low-switching-frequency devices.
Proceedings ArticleDOI
Implementation of a shunt active filter using the Theory of Generalized Instantaneous Power
Paulo Vitor Silva,Ricardo Ferreira Pinheiro,Marcos V. M. de Aguiar,Luciano Pereira do Santos Junior,Andres O. Salazar,Caio D. Cunha +5 more
TL;DR: In this paper, the authors describe the implementation of a strategy to obtain the currents reference of a shunt filter active using the method of the Theory of Generalized Instantaneous Power applied to the control of a generator induction of feeding a nonlinear load.
References
More filters
Journal ArticleDOI
Current control techniques for three-phase voltage-source PWM converters: a survey
TL;DR: Current control techniques for three-phase voltage-source pulsewidth modulated converters, including bang-bang (hysteresis, delta modulation) controllers and predictive controllers with on-line optimization are reviewed.
Journal ArticleDOI
Decoupling in the design and synthesis of multivariable control systems
Peter Falb,William A. Wolovich +1 more
TL;DR: The characterization of φ of all feedback matrices which decouple the system is characterized to determine the number of closed-loop poles which can be specified for the decoupled system and to develop a synthesis technique for the realization of desired closed- loop pole configurations.
Journal ArticleDOI
An improved deadbeat control for UPS using disturbance observers
TL;DR: A digital control technique for the inverter stage of uninterruptible power supplies is proposed, which is based on a predictive regulator on both output voltage and inductor current, able to guarantee a fast dynamic response and also a precise compensation of any source of unpredictable disturbance.
Journal ArticleDOI
A new single-phase five-level PWM inverter employing a deadbeat control scheme
TL;DR: In this article, a single-phase five-level PWM inverter is presented to alleviate harmonic components of the output voltage and the load current, and the deadbeat controller is designed and implemented on a prototype.
Journal ArticleDOI
Robust dead-beat current control for PWM rectifiers and active filters
TL;DR: In this paper, the authors analyzed the stability limitations of digital dead-beat current control applied to voltage-source three-phase converters used as pulsewidth modulation rectifiers and/or active filters.