An Efficient Model Predictive Current Control Algorithm for Grid-Connected Multi-Level Inverter with Computational Delay Compensation

Katkout, Abdiddaim; Nasser, Tamou; Essadki, Ahmed

doi:10.1109/iceit48248.2020.9113234

Cited by 7 publications

(7 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [5–8], the aim of the methods is to decrease T d . But T d can't be completely eliminated, which means that θ FF can't be 0.…”

Section: Coupling Characteristic Analysismentioning

confidence: 99%

“…It not only slows down the regulation speed of the control loop, but also lead to coupling. There are two main methods to eliminate the time delay, one is model prediction control (MPC) [5–8], and the other is updating and sampling concepts improvement in the digital control [9, 10]. An open‐loop current controller based on MPC is proposed in [6], the sensitivity of the method to time delay is analysed and compensated.…”

Section: Introductionmentioning

confidence: 99%

“…An open‐loop current controller based on MPC is proposed in [6], the sensitivity of the method to time delay is analysed and compensated. In [7], the compensation of the time delay is realized by a long horizon prediction approach. In [8], a generalized “one‐step estimation” solution is proposed to directly associate the control‐variable gradients with the vector switching sequence.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Complete decoupling compensation of three‐phase inverter with LCL filter in synchronous reference frame

Shi

Huang

Zheng

2022

IET Power Electronics

View full text Add to dashboard Cite

A decoupling control strategy of three‐phase inverter, which can realize complete decoupling of the active and reactive current in the synchronous reference frame (SRF) is proposed here. There are two coupling factors of current loop in SRF, one is time delay caused by digital control, and the other is AC filter. Dynamic time delay compensation is applied to eliminate coupling caused by the first factor. The phase of the bridge leg voltage can be predicted. The difference between it and the phase of reference voltage which takes part in pulse width modulation (PWM) is the dynamic compensation angle, which can compensate the time delay. High‐order feedforward compensation is applied to eliminate coupling caused by the second factor. Complex vector model of the LCL filter is derived and the high‐order coupling coefficients can be offset by feedforward compensation. The coupling characteristics and compensation principles are analysed in detail. The system stability is discussed. Finally, the simulation and experimental results are given to verify the theoretical analysis.

show abstract

“…In [5–8], the aim of the methods is to decrease T d . But T d can't be completely eliminated, which means that θ FF can't be 0.…”

Section: Coupling Characteristic Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Complete decoupling compensation of three‐phase inverter with LCL filter in synchronous reference frame

Shi

Huang

Zheng

2022

IET Power Electronics

View full text Add to dashboard Cite

show abstract

“…This way,

0.5 T s

delay is introduced, which can be easily compensated by the controller. In [99], the authors used a long horizon prediction approach to compensate for the computational delay in the control loop of a multi‐level inverter. In the research work of [100], the authors employed a simple prediction algorithm technique utilising the reference signals with several switching periods ahead to eliminate the time‐delay in the control loop.…”

Section: Model‐based Time‐delay Compensation Techniquesmentioning

confidence: 99%

A comprehensive review on time‐delay compensation techniques for grid‐connected inverters

Elhassan

Zulkifli

Pathan

et al. 2021

IET Renewable Power Gen

View full text Add to dashboard Cite

The control of grid‐connected inverters is recently executed with digital microprocessors due to the advances in digital signal processing technology. However, the digital realisation has a drawback of the phase lag induced by the time‐delay. This phase lag challenges the stability and robustness of the controller of the inverters. In view of the challenge, this paper presents a comprehensive review of time‐delay compensation techniques employed in both model‐free (MF), and model‐based (MB) controls of an inverter in grid connection. MF techniques mainly use proportional‐integral, and proportional resonance controllers with some techniques to reduce time‐delay. Meanwhile, for MB, this paper discusses the commonly used control techniques, which are the Smith predictor, modified Smith predictor, deadbeat controller and model predictive controller. Several related techniques from the literature that have been adopted to mitigate the delays are tabulated comprehensively, and critical issues regarding the MF and MB techniques are also discussed. Finally, this paper presents a hypothesis on which technique is superior at present and suggests a hybrid technique from the MF and MB techniques to give readers a direction for further research.

show abstract

“…To address the aforementioned issue and to fulfill the high-performance IPMSM application requirements (e.g., EVAs), numerous multilevel power converter structures are recognized: neutral-point clamped (NPC), flying capacitor (FC), cascade H-bridge (CHB), and modular multilevel (MM) [27][28][29]. Several researchers have investigated the multilevel power converter, thanks to its benefits: low voltage applied to each component, less dv/dt and low THD of the output voltage and current waveforms, and low switching loss using the redundancy of the switching states [30,31].…”

Section: Introductionmentioning

confidence: 99%

Novel Predictive Control for the IPMSM Fed by the 3L-SNPC Inverter for EVAs: Modified Lyapunov Function, Computational Efficiency, and Delay Compensation

Katkout

Nasser

Essadki

2020

Mathematical Problems in Engineering

Self Cite

View full text Add to dashboard Cite

This paper proposes a novel predictive strategy based on a model predictive control (MPC) for the interior permanent magnet synchronous motors (IPMSMs) driven by a three-level simplified neutral-point clamped inverter (3L-SNPC) for electric vehicle applications (EVAs). Based on the prediction of the future behavior of the controlled variables, a predefined multiobjective cost function incorporates the control objectives which are evaluated for every sampling period to generate the optimal switching state applied directly to the inverter without the modulation stage. The control objectives in this paper are tracking current capacity, neutral-point voltage balancing, common-mode voltage control, and switching frequency reduction. The principal concepts of the novel scheme are summarized as follows: first, the delay compensation based on the long horizon of prediction is adopted by a multilevel power converter structure. Second, based on the modified Lyapunov candidate function, both stability and recursive feasibility are ensured of the proposed predictive scheme. Third, the practicability of the real-time implementation is improved by the proposed “static voltage vector” (SVV) and “single state variation” (SSV) principles. Finally, the proposed concepts are implemented in the novel predictive control formulation as additional constraints without compromising the complexity and the good performances of the predictive controller. Therefore, only the switching states that guarantee the stability and the reduction of calculation burden criteria are considered in the evaluation of cost function. The proposed predictive scheme based on the “SVV” principle has demonstrated superior performance in simulation compared with the proposed scheme with the “SSV” principle. The computational burden and switching frequency rates are reduced by 35% and 56.22%, respectively.

show abstract

An Efficient Model Predictive Current Control Algorithm for Grid-Connected Multi-Level Inverter with Computational Delay Compensation

Cited by 7 publications

References 11 publications

Complete decoupling compensation of three‐phase inverter with LCL filter in synchronous reference frame

Complete decoupling compensation of three‐phase inverter with LCL filter in synchronous reference frame

A comprehensive review on time‐delay compensation techniques for grid‐connected inverters

Novel Predictive Control for the IPMSM Fed by the 3L-SNPC Inverter for EVAs: Modified Lyapunov Function, Computational Efficiency, and Delay Compensation

Contact Info

Product

Resources

About