State-feedback control of a voltage source inverter-based STATCOM

2013 ◽  
Author(s):  
S. Pradeepa ◽  
K. U. Rao ◽  
R. Deekshit ◽  
M. S. Shantha
Keyword(s):  
Feedback Control ◽  
State Feedback ◽  
State Feedback Control ◽  
Voltage Source ◽  
Voltage Source Inverter

scholarly journals A state-space approach for control of NPC type 3-level sine wave inverter used in FOC PMSM drive

2014 ◽  
Vol 62 (3) ◽  
pp. 439-448 ◽  
Author(s):  
T. Tarczewski ◽  
L.M. Grzesiak ◽  
A. Wawrzak ◽  
K. Karwowski ◽  
K. Erwinski
Keyword(s):  
Feedback Control ◽  
State Feedback ◽  
Voltage Control ◽  
Sine Wave ◽  
State Feedback Control ◽  
Voltage Source ◽  
Synthesis Process ◽  
Dynamic Features ◽  
Feedback Controllers ◽  
Type 3

Abstract This paper presents the design and analysis process of state feedback controllers for NPC type 3-level sine wave inverter. In order to achieve good dynamic features in a state feedback control an internal model of reference input and a feedforward path are introduced. During synthesis process of the state feedback controllers maximum permissible dynamics of voltage control in the linear range of modulation is taken into account. It is shown that initially gains of the controller and feedforward path are non-stationary and depend on the angular velocity. Stationary approximation of a non-stationary state feedback controller is presented in details. Proposed state feedback control structures for continuous voltage shaping NPC type 3-level voltage source inverter are examined in FOC PMSM drive. The novelty of the presented controller lays in a stationary approximated state feedback control structure designed in terms of maximum permissible dynamics of a voltage control system. Simulation and experimental results (at the level of 3 kW) of the designed control algorithms are included.

scholarly journals State feedback control of advanced static var compensator using a five-level NPC inverter topology

2021 ◽  
Vol 12 (1) ◽  
pp. 345
Author(s):  
Mansour Benyamina ◽  
Ali Tahri ◽  
Abdelkader Boukortt
Keyword(s):  
Feedback Control ◽  
Control Strategy ◽  
State Feedback ◽  
Dynamic Performance ◽  
State Space Model ◽  
Operating Conditions ◽  
State Feedback Control ◽  
Voltage Source ◽  
Static Var Compensator ◽  
Modeling And Control

This paper deals with the modeling and control of an advanced static var compensator (ASVC) using a five-level neutral point-clamped (NPC) voltage source inverter (VSI). The nonlinear state space model of the five-level ASVC is obtained from the d-q axis frame. The effectiveness of this compensator highly depends on the choice of the control strategy. The proposed state feedback control (SFC) technique is applied to adjust the ASVC Var flow with the AC transmission network and achieve DC voltage capacitor balance. The dynamic performance of the ASVC based SFC controller is evaluated under several operating conditions. The simulation results demonstrate that the proposed SFC control strategy is highly robust compared to the conventional Proportional-Integral (PI) control.

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