Predictive Optimal Switching Sequence Direct Power Control for Grid-Connected Power Converters

Vázquez, Sergio; Márquez, Antonio J.; Aguilera, Ricardo P.; Quevedo, Daniel E.; León, José I.; Franquelo, Leopoldo G.

doi:10.1109/tie.2014.2351378

Cited by 319 publications

(158 citation statements)

References 35 publications

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“…The pair of vectors that minimizes the cost function g inv are selected as the optimal v i opt to be applied in the next period. The time that each vector is applied is given by: After obtaining the duty cycles and selecting the optimal vectors to be applied in both the rectifier and inverter, a switching pattern procedure is adopted with the goal of applying the optimal vectors [19] (Fig. 7).…”

Section: B Control Of the Invertermentioning

confidence: 99%

Indirect model predictive control strategy with active damping implementation for a direct matrix converter operating at fixed switching frequency

Rivera

Huang

Tarisciotti

et al. 2017

2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. Abstract-One of the main drawbacks of the implementation of predictive control in a direct matrix converter is the high computational cost and the adequate selection of weighting factors in order to control both input and output sides. In this paper is proposed an indirect model predictive current control strategy enhanced with a fixed switching predictive strategy and an active damping implementation. With all this, the idea is to reduce the computational cost while eliminating the necessity of weighting factors and improving the performance of the full system. The proposed method is based on the fictitious dc-link concept, which has been used in the past for the classical modulation and control techniques of the direct matrix converter. Simulated results confirm the feasibility of the proposal demonstrating that it is an alternative method to classical predictive control strategies for the direct matrix converter.Index Terms-active damping, current control, matrix converters, indirect model predictive control, fictitious dc-link.

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Section: B Control Of the Invertermentioning

confidence: 99%

Indirect model predictive control strategy with active damping implementation for a direct matrix converter operating at fixed switching frequency

Rivera

Huang

Tarisciotti

et al. 2017

2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)

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“…(2), the relationship between the input voltage v i and load voltage v o depend on the state of the switching given by matrix T. Based on the fictitious definition, the load voltage v o is given as indicated in eq. (15). At the same time, the fictitious dc-link voltage v dc is given by eq.…”

Section: Relationship Between the Fictitious Converter And The Dmcmentioning

confidence: 99%

Indirect model predictive control strategies with input filter resonance mitigation for a matrix converter operating at fixed switching frequency

Rivera

Nikolić

Tarisciotti

et al. 2017

2017 International Symposium on Power Electronics (Ee)

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Abstract-The main issues of the implementation of model predictive control in a direct matrix converter are the high computational cost, the adequate selection of weighting factors and the variable switching frequency which could produce resonances in the input filter. In order to solve these problems, in this paper are proposed two indirect model predictive control techniques with input filter resonance mitigation operating at fixed switching frequency. The method is based on the fictitious dc-link concept, which has been used in the past for the classical modulation and control techniques of the direct matrix converter. Simulated results confirm the feasibility of the proposal demonstrating that it is an alternative to classical predictive control strategies for the direct matrix converter.Index Terms-active damping, current control, matrix converters, indirect model predictive control, fictitious dc-link.

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“…This straightforward FCS-MPC approach, which takes advantage of the inherently discrete nature of the converter switching actions, has several advantages, such as fast transient response, easy addition of constraints to the controller, and simple implementation through the removal of the PWM blocks. Owing to these advantages, the FCS-MPC methods have been widely applied for controlling the NPC, FC, and CHB multilevel converters [19]. The FCS-MPC method for the CHB converter [20,21] and inverter [22] calculates all the resulting voltage vectors from all the possible switching states to regulate the load currents of the converters.…”

Section: Introductionmentioning

confidence: 99%

Improved Finite-Control-Set Model Predictive Control for Cascaded H-Bridge Inverters

Roh

Kwak

2018

Energies

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Abstract:In multilevel cascaded H-bridge (CHB) inverters, the number of voltage vectors generated by the inverter quickly increases with increasing voltage level. However, because the sampling period is short, it is difficult to consider all the vectors as the voltage level increases. This paper proposes a model predictive control algorithm with reduced computational complexity and fast dynamic response for CHB inverters. The proposed method presents a robust approach to interpret a next step as a steady or transient state by comparing an optimal voltage vector at a present step and a reference voltage vector at the next step. During steady state, only an optimal vector at a present step and its adjacent vectors are considered as a candidate-vector subset. On the other hand, this paper defines a new candidate vector subset for the transient state, which consists of more vectors than those in the subset used for the steady state for fast dynamic speed; however, the vectors are less than all the possible vectors generated by the CHB inverter, for calculation simplicity. In conclusion, the proposed method can reduce the computational complexity without significantly deteriorating the dynamic responses.

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Predictive Optimal Switching Sequence Direct Power Control for Grid-Connected Power Converters

Cited by 319 publications

References 35 publications

Indirect model predictive control strategy with active damping implementation for a direct matrix converter operating at fixed switching frequency

Indirect model predictive control strategy with active damping implementation for a direct matrix converter operating at fixed switching frequency

Indirect model predictive control strategies with input filter resonance mitigation for a matrix converter operating at fixed switching frequency

Improved Finite-Control-Set Model Predictive Control for Cascaded H-Bridge Inverters

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