| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 1.96 MB | Adobe PDF |
Orientador(es)
Resumo(s)
This paper presents the design and compares the performance of linear, decoupled and direct power controllers (DPC) for three-phase matrix converters operating as unified power flow controllers (UPFC). A simplified steady-state model of the matrix converter-based UPFC fitted with a modified Venturini high-frequency pulse width modulator is first used to design the linear controllers for the transmission line active (P) and reactive (Q) powers. In order to minimize the resulting cross coupling between P and Q power controllers, decoupled linear controllers (DLC) are synthesized using inverse dynamics linearization. DPC are then developed using sliding-mode control techniques, in order to guarantee both robustness and decoupled control. The designed P and Q power controllers are compared using simulations and experimental results. Linear controllers show acceptable steady-state behaviour but still exhibit coupling between P and Q powers in transient operation. DLC are free from cross coupling but are parameter sensitive. Results obtained by DPC show decoupled power control with zero error tracking and faster responses with no overshoot and no steady-state error. All the designed controllers were implemented using the same digital signal processing hardware.
Descrição
Palavras-chave
Direct Power Controllers (DPC) Linear Controllers Matrix Converter Unified Power Flow Controllers (UPFC)
Contexto Educativo
Citação
Editora
IEEE - Institute of Electrical and Electronics Engineers Inc.