Methodology for Analysis and Design of DiscreteTime Current Controllers for Three-Phase PWM Converters

Broeck, Christoph H. van der; Richter, Sebastian A.; Bloh, J. von; Doncker, Rik W. De

doi:10.24295/cpsstpea.2018.00025

Cited by 17 publications

(8 citation statements)

References 29 publications

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“…As shown from (11), the PI gains can be determined based on damping ratio, which is always assumed by 0.707 [23,25], and natural frequency which can be determined from the targeted bandwidth (BW) as follows [18]:…”

Section: B Conventional Pi CC With Pole Placement Methods (2 Ndmentioning

confidence: 99%

“…Accordingly, the closed loop transfer function is simplified to be a first order system as shown by (23).…”

Section: Modified Conventional Pi CC With Pole Placement Methods ( mentioning

confidence: 99%

“…2 can be structured by one or two degree of freedom PI controller which has been discussed in the following subsections. During the CC tuning, operating speed is assumed to be zero as a rule of thumb [23]. Hence, the cross coupling and their compensation elements have been removed during the study of controller's gains selection.…”

Section: Srf Pi Current Controller Design Schemesmentioning

confidence: 99%

“…Subsequently, the controller gain can be tuned using the location of pcl1 and pcl2 to achieve a certain performance. In order to achieve the strongest disturbance rejection possible with negligible overshoot, the controller should be tuned in order to have an optimal damping ratio (ղ =0.707) [23]. The proposed setting (Kod) can be derived analytically from the symbolic solution for the roots of the characteristic equation (37).…”

Section: Proposed Design Recommendationsmentioning

confidence: 99%

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Fast and Simple Tuning Rules of Synchronous Reference Frame Proportional-Integral Current Controller

et al. 2021

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Synchronous reference frame proportional-integral (PI) current controller (CC) is considered the most well-established solution for the current regulation in electrical drives. However, the gain selection of the PI CC is still regarded to be poorly reported, particularly in relation to the effect of the inevitable execution time taken by the controller and inverter. Mostly, tuning process of PI CC is done by trial and error or using simple rules based on pole zero cancelation and pole placement methods which ignore time delays through the controller and inverter. Hence, PI CC delivers significantly different performance compared to the expected one during the digital implementation, especially if high bandwidth or low ratio between the switching and operational frequency are required. Therefore, this paper firstly addresses and analyses the common tuning rules of PI CC which ignore the existence of time delays followed by a rigorous analysis for PI CCs' robustness to the influence of computational and modulation delays. Based on this analysis, generic recommendations have been proposed to select the PI CCs' gains as a function of the electrical drive switching frequency considering the delay effect. A set of simple, generic, and fast tuning rules were derived that guarantee fast dynamic performance with reasonable stability margins. Moreover, the effects of model uncertainties on these developed rules have been analyzed and reported. Comprehensive experimental results are provided to prove the key analytical results of this study and to validate the proposed design recommendations.

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Section: B Conventional Pi CC With Pole Placement Methods (2 Ndmentioning

confidence: 99%

“…Accordingly, the closed loop transfer function is simplified to be a first order system as shown by (23).…”

Section: Modified Conventional Pi CC With Pole Placement Methods ( mentioning

confidence: 99%

Section: Srf Pi Current Controller Design Schemesmentioning

confidence: 99%

Section: Proposed Design Recommendationsmentioning

confidence: 99%

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Fast and Simple Tuning Rules of Synchronous Reference Frame Proportional-Integral Current Controller

et al. 2021

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show abstract

“…However, the development and implementation of controllers in the αβ 0 reference frame is currently becoming more popular, as the transformations are simple and less costly from a computational point of view [26]. Besides, this reference frame is itself orthogonal and the cross‐coupling terms between control axes are cancelled, while these features cannot be found in implementations based on the dq 0 axis [27, 28].…”

Section: Introductionmentioning

confidence: 99%

Enhanced performance controller for high power wind converters connected to weak grids

Shahparasti

Catalán

Garcia

et al. 2020

IET Renewable Power Generation

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Enhanced Voltage Regulation of 16-Bus Micro-Grid System Using Sliding Mode Controller

Bahamani

Reddy

2021

Soft Computing for Intelligent Systems

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Methodology for Analysis and Design of DiscreteTime Current Controllers for Three-Phase PWM Converters

Cited by 17 publications

References 29 publications

Fast and Simple Tuning Rules of Synchronous Reference Frame Proportional-Integral Current Controller

Fast and Simple Tuning Rules of Synchronous Reference Frame Proportional-Integral Current Controller

Enhanced performance controller for high power wind converters connected to weak grids

Enhanced Voltage Regulation of 16-Bus Micro-Grid System Using Sliding Mode Controller

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