IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society 2012
DOI: 10.1109/iecon.2012.6388652
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Stability analysis of half-bridge rectifier employing LTP approach

Abstract: Many control techniques applied to converters with power factor correction use cascaded control. These techniques usually ignore the periodic output voltage oscillation by using compensators with low-pass characteristic. This strategy result in voltage closed loop with poor dynamic response. In order to reduce the time-response, designers have associated notch filters into the controller to increase the bandwidth without compromising the power factor correction. However, the linear time invariant approach is n… Show more

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Cited by 5 publications
(7 citation statements)
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“…The numerical optimization is set to minimize the Integral Absolute Error (IAE) of the output, and the Integral Square Error (ISE) of the control signal by changing the integral and proportional gain of the PI-controller. Equation (15) shows the cost function.…”
Section: A Designmentioning
confidence: 99%
See 1 more Smart Citation
“…The numerical optimization is set to minimize the Integral Absolute Error (IAE) of the output, and the Integral Square Error (ISE) of the control signal by changing the integral and proportional gain of the PI-controller. Equation (15) shows the cost function.…”
Section: A Designmentioning
confidence: 99%
“…This method maintains all the information of the converter, but is not very pratical for most analysis and control design. Another modeling approach which has recieved a lot of attention in the modeling of active front ends is the Linear Time-Varying Periodic (LTP) model [14][15][16][17][18]. This method uses a harmonic state space model to descripe how each of the harmonic components of the input impact each of the harmonic components of the output.…”
Section: Introductionmentioning
confidence: 99%
“…To accomplish this, we utilize the same approach used for lifting the time-periodic system matrices to obtain Toeplitz form structures of the controllers. However, one needs to keep in mind that the lifted controllers do not have any spectral interactions and their HTFs representations can be obtained as follows (Bellinaso et al, 2011;Scapini et al, 2012): PD-type controller. The main objective of this section is to illustrate adoption of the structure of a PD controller into the closed-loop LTP feedback system, which is shown in Figure 5.…”
Section: Algorithm For Controller Design Based On Htfsmentioning
confidence: 99%
“…However, one main assumption behind the use of LQR controllers is the availability of a state-space representation by using which one can develop state observers. Similar ideas have been developed by using static feedback gain controllers via Nyquist plots (Wereley, 1990) and some other power network system controllers (Bellinaso et al, 2011;Mollerstedt and Bernhardsson, 2000b;Scapini et al, 2012) when the statespace representation of the LTP system is given a priori. Despite the availability of some state-space identification methods for LTP systems Verhaegen and Yu, 1995), the control problem based on estimated statespace models is still an open issue to the best of authors' knowledge.…”
Section: Introductionmentioning
confidence: 99%
“…Second, based on a HSS model, stability analysis can be performed. In [21] and [22] stability analysis is performed on a single-phase grid-connected converter in the continuous time-domain, and in [23] the analysis is carried out in the discrete time-domain based on linearised models of the system, but non-linearities due to the PLL are not included in the analysis. In [24] the non-linear dynamics introduced by the PLL is included in the analysis using a small-signal model and an impedancebased stability analysis is performed but precise stability boundaries are not provided.…”
Section: Introductionmentioning
confidence: 99%