Formal Design Methodology for Discrete Proportional-Resonant (PR) Controllers Based on Sisotool/Matlab Tool

Vasquez-Plaza, Jesus D.; Patarroyo-Montenegro, Juan F.; Campo-Ossa, Daniel D.; Sanabria-Torres, Enrique A.; Lopez-Chavarro, Andres F.; Andrade, Fabio

doi:10.1109/iecon43393.2020.9254717

Cited by 8 publications

(3 citation statements)

References 11 publications

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“…In this diagram, the transfer functions G i v (s) and G v i (s) are defined as in ( 4) and ( 5), shown at the bottom of the next page, whereas C V (s) and C I (s) account for the transfer functions of the PR voltage and current controllers, respectively, where K PV , K PI , K RV and K RI are the proportional and resonant gain terms, and ω 0 is the resonant frequency: Tuner from Matlab. The design criteria was adopted following the guidelines in [25] with an outer voltage loop faster than the inner current loop in order to meet the design requirements. This feature improves the control by permitting a faster current tracking of the inner loop but avoiding any dangerous current overshoot, as the largest control action comes from the PR voltage controller output (i * L1 ).…”

Section: A Pr Cascade Dual Inner Loops Controlmentioning

confidence: 99%

PV-Battery Assisted Three-Level T-Type Inverter for AC Residential Nanogrid Realized With Small-Scale HIL Units

et al. 2023

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Hardware-in-the-loop (HIL) testing methods by means of HIL units or real-time simulators (RTS), are becoming broadly accepted for validating of control systems in many technical areas. This new approach brings advantages such as the acceleration of the industrial and the research development cycle and offers a risk-free and flexible environment for the testing and the evaluation stages before the control deployment in the physical system. Nevertheless, the realization of such methodology can be very challenging in some large or complex plants. In this scenario, a proper simulation of the physical system, that is, the development of its accurate digital twin, demands a suitable and reliable sectioning of the different components into different parts running in parallel into different HIL units. This is the case of a nanogrid (nG) involving some prosumers with renewable energy resources (RES), and their corresponding multiple power electronic converters. These power electronic converters operate at high switching frequencies, which require a very low simulation time step, as well as a high number of input and output signals in closedloop operation. This work analyzes in detail how to realize a digital twin of a two-prosumer residential nG including a photovoltaic (PV)-battery assisted three-level T-type (3L T-Type) inverter and managed by a hierarchical grid-forming (GFM) control structure by means of RTS based on the RT Box 1 by Plexim. The analysis allows to test the proposed GFM controls and the control hardware in steady and transient conditions, validating their accurate performance.INDEX TERMS Digital twin, grid-forming power converters, hardware-in-the-loop, microgrids, real-time simulation, residential nanogrids. MARÍA ISABEL MILANÉS-MONTERO (Member, IEEE) received the M.Sc. degree in industrial engineering and the Ph.D. degree in electrical and electronic engineering from the University of Extremadura, Spain, in 1997 and 2005, respectively. In November 1998, she joined the School of Industrial Engineering, University of Extremadura, as an Assistant Professor and a Researcher with the Power Electrical and Electronic Systems Research and Development Group. Her research interests include power quality, renewable energy sources control, energy storage management systems, smart grids, and electric vehicles. OLEKSANDR HUSEV (Senior Member, IEEE) received the B.Sc. and M.Sc. degrees in industrial electronics from

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Section: A Pr Cascade Dual Inner Loops Controlmentioning

confidence: 99%

PV-Battery Assisted Three-Level T-Type Inverter for AC Residential Nanogrid Realized With Small-Scale HIL Units

et al. 2023

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“…The PR controller has gained its popularity and becomes widely used in single-phase systems [22]. And PR controller offers several advantages, such as resolving the computational burden and complexity due to the removal Park transformations, providing great convenience and simplicity to implement [23].…”

Section: B Design Of the Voltage Controllermentioning

confidence: 99%

Analysis and Suppression of Voltage Harmonic Distortions of the Single-Phase High Frequency Link Matrix-Type DC–AC Converter

Zhu

Cao

et al. 2022

IEEE Access

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The single-phase high frequency link (HFL) matrix-type DC-AC converter has been widely explored due to its high efficiency, light weight, and high power density, which offers galvanic isolation power conversion without bulky dc link capacitors and soft-switching operation. Different from traditional two-level DC-AC converters, the single-phase HFL matrix-type DC-AC converter has no double-line frequency ripple voltage on the DC side, but the ripple appears on the clamp capacitor, which has not yet been investigated in detail so far. In this paper, the mechanism of the double-line frequency ripple voltage of the clamp capacitor in the single-phase HFL matrix-type DC-AC converter is comprehensively explored, and a mathematical model of the HFL matrix-type DC-AC converter is established. To suppress the effect of the double-line frequency ripple voltage on the power quality and guarantee the good power quality of the AC side, a multi-resonant (MPR) controller is applied to reduce voltage harmonic distortions. A 20-kHz HFL matrix-type DC-AC converter prototype is built. Experimental results have verified the effectiveness of the analysis and applied control scheme.INDEX TERMS Double-line frequency ripple voltage, harmonic distortions suppression, high frequency link (HFL) matrix-type DC-AC converter, multi-resonant (MPR) controller.

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“…Proportional-integral (PI) controllers in the dq frame and proportionalresonant (PR) controllers in the αβ frame are the most common. These controllers have a cascading architecture where the external control loop is the voltage control loop and the internal loop is the current control loop [4][5][6]. Another solution is to use optimal state feedback controllers such as LQR or LQI in the dq frame [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Benchmarking Real-Time Control Platforms Using a Matlab/Simulink Coder with Applications in the Control of DC/AC Switched Power Converters

et al. 2022

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In the control of DC/AC switched power converters (SPC), one of the most important aspects to be considered is the selection of the real-time control platform. The real-time control platform must be able to meet the high performance efficiency and regulation requirements of the DC/AC SPC, as these typically operate at switching frequencies in the order of kHz to MHz. For this reason, the hardware characteristics of the ADC and PWM, and the processing capacity of the real-time control platform are of vital importance when implementing advanced digital controllers that maintain voltage and current levels within regulatory standards. In this context, we aimed to perform a comparative study of the computation times of different real-time control platforms when implementing different control strategies for DC/AC switched power converters. We also analyzed the impact of the real-time control platforms on the THD of the voltages generated by the DC/AC switched power converters. With the help of this paper, researchers and developers will have criteria to select which real-time control platform to use in real-time control for DC/AC SPC applications.

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Formal Design Methodology for Discrete Proportional-Resonant (PR) Controllers Based on Sisotool/Matlab Tool

Cited by 8 publications

References 11 publications

PV-Battery Assisted Three-Level T-Type Inverter for AC Residential Nanogrid Realized With Small-Scale HIL Units

PV-Battery Assisted Three-Level T-Type Inverter for AC Residential Nanogrid Realized With Small-Scale HIL Units

Analysis and Suppression of Voltage Harmonic Distortions of the Single-Phase High Frequency Link Matrix-Type DC–AC Converter

Benchmarking Real-Time Control Platforms Using a Matlab/Simulink Coder with Applications in the Control of DC/AC Switched Power Converters

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