Design of a switching table for direct power control of a DFIG using sliding mode theory

Hemdani, A.; Ghorbal, Manel Jebali-Ben; Naouar, Mohamed Wissem; Slama‐Belkhodja, Ilhem

doi:10.1109/ssd.2011.5767487

Cited by 6 publications

(4 citation statements)

References 20 publications

(22 reference statements)

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“…Equations (13)- (16) are valid for the calculation of the derivatives of p and q regardless of the grid sequence just by assuming a negative angular frequency for the case of a negative sequence. According to (14) and 16, a negative sequence grid leads to a downward vertical displacement of the derivatives of q analogous to the one observed in the regenerative operation mode. Thus, the R-slow and R-fast STs are suitable options for this sequence during rectifying operation.…”

Section: Negative Sequence Gridsmentioning

confidence: 81%

“…As it can be deduced from (14) and (16), the regenerative operation of the converter ( p < 0) implies a downward vertical displacement of the derivatives of q depicted in Fig. 7 Flowchart for the implementation of the MST-DPC method Fig.…”

Section: Regenerative Operationmentioning

confidence: 99%

“…The first design of a dedicated ST for the DPC method was based on pioneering studies on the effect of the converter voltage vectors on the instantaneous power values [7]. Further studies and proposals on this subject can be found in [3,[8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Multiple switching tables direct power control of active front‐end rectifiers

Norniella¹,

Cano²,

Orcajo³

et al. 2014

IET Power Electronics

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Direct power control (DPC) is one of the best well-known methods used in three-phase active rectifiers interfacing regenerative loads to the ac grid. The DPC strategy is based on a straightforward regulation of instantaneous real and reactive powers. A switching table (ST) is used to track the real and reactive power references by selecting an appropriate switching state as a function of the estimated position of the grid voltage space vector in the α-β plane. Certain advantages are observed if different STs are used during the rectifier and inverter (regenerative operation) modes or according to the sequence of the ac grid. Furthermore, the STs can be designed to achieve a fast transient behaviour or to improve the efficiency of the converter by minimising the switching losses. Thus, the use of a single table, as stated in traditional proposals, is far from the optimal solution when the full duty cycle of the device is considered. This study introduces the multiple STs DPC as a simple unified control strategy intended to attain the best performance of the DPC method at any operation point. This strategy is demonstrated by means of simulation and experimental tests.

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Section: Negative Sequence Gridsmentioning

confidence: 81%

Section: Regenerative Operationmentioning

confidence: 99%

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Multiple switching tables direct power control of active front‐end rectifiers

Norniella¹,

Cano²,

Orcajo³

et al. 2014

IET Power Electronics

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“…Based on that idea, an SMC based DPC method for grid-connected ML-VSC was defined in [39]. Other SMC based DPC methods were presented in [40,41], but do not rely on constant switching frequency, therefore their output currents contain unexpected harmonics which affects the output power quality. SMC based DPC approaches with constant switching frequency and space vector modulation (SVM) are proposed in [42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Predictive discrete‐time sliding mode based direct power control for grid‐connected energy conversion systems

Huseinbegović

Peruničić

Veselić

et al. 2023

IET Control Theory & Appl

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A method for digital direct power control design for grid‐connected energy conversion systems was proposed in this paper. The active and reactive powers are directly controlled with constant switching frequency by selecting an appropriate switching control sequence of voltage source converter as a key part of energy conversion systems. The control design combines a discrete‐time sliding mode control and predictive control. The selection of feasible switching control vectors is a direct result of the discrete‐time sliding mode control approach. These vectors satisfy the existence conditions of the sliding mode, but each of them induces system motion with different properties. The task of predictive control is to select an appropriate switching control sequence to reduce the chattering phenomenon, steady‐state error, and overshoot. The cost function of the prediction process is defined as the average value of both power errors on the prediction horizon of three sampling periods. Simulation results, experimental results, and results of a comparative analysis are presented in order to show the performance and effectiveness of the proposed control design.

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Sensors fault diagnosis and fault tolerant control for grid connected PV system

Youssef

Sbita

2017

International Journal of Hydrogen Energy

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Design of a switching table for direct power control of a DFIG using sliding mode theory

Cited by 6 publications

References 20 publications

Multiple switching tables direct power control of active front‐end rectifiers

Multiple switching tables direct power control of active front‐end rectifiers

Predictive discrete‐time sliding mode based direct power control for grid‐connected energy conversion systems

Sensors fault diagnosis and fault tolerant control for grid connected PV system

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