Fast Self-Tuning Decentralized Variable Frequency Optimal Controller Design for Three-Phase Embedded Grids

Dewar, David; Rhoten, Jaime; Formentini, Andrea; Zanchetta, Pericle

doi:10.1109/iecon.2019.8927110

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…However, for the LQR controller, due to that the output controller cannot be constrained, the PLL cannot be augmented in the AFE LQR controller synthesis. Therefore, for both the LQR and PI controllers in this study, and to ensure the same dynamics for each test, the PLL in both cases is designed with a bandwidth of 100 Hz, and a damping of 0.707, based on the PLL transfer functions as defined in [37]. Therefore, the PLL controller gains for the LQR and PI controller tests are

K_{p} = 0.6282, K_{i} = 27.92 .

…”

Section: Simulative Analysismentioning

confidence: 99%

Optimal and automated decentralised converter control design in more electrical aircraft power electronics embedded grids

Dewar

Formentini

et al. 2021

IET Power Electronics

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In modern power systems, the proliferation of power electronics converters, and distributed generation raises important issues concerning inter‐connected switching units in terms of performance, stability and robustness. Such phenomenon are more prominent in micro‐grids, such as modern local low voltage distribution systems, more electric aircraft power systems etc., where many power converters are connected to the same non‐stiff low power ac grid, and strongly interact with each other. Locally designed converter control systems on the same electrical bus exhibit interactive behaviour. If not taken properly into account, external disturbances to the system at given operating conditions may result in the degradation of performance, failure to meet operating conditions and, in some cases, instability. This paper presents a new approach to synthesise converter controllers in more electric aircraft ac distribution grids (which is, however, applicable to all power electronics embedded systems), keeping in consideration dynamic interactions among subsystems. An optimal control design approach based on H2 optimisation is therefore proposed. Phase‐locked loops have also been considered, and their tuning has been included in the general tuning procedure of the whole system. Simulation, and experimental results show good improvements in terms of dynamic performance, and interaction mitigation.

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K_{p} = 0.6282, K_{i} = 27.92 .

…”

Section: Simulative Analysismentioning

confidence: 99%

Optimal and automated decentralised converter control design in more electrical aircraft power electronics embedded grids

Dewar

Formentini

et al. 2021

IET Power Electronics

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show abstract

“…Note additionally, that with (29) and (30) redefining the VSI state-space model, these terms must also be submitted into (22) and (23) respectively to ensure the closed loop PI controller states of the VSI are correctly modelled accounting for PLL interactions.…”

Section: B Incorporation Of Pll Interactive Behaviourmentioning

confidence: 99%

“…In addition, since the H 2 optimisation uses the whole system model for the development of decentralised controllers, each independent controller is optimised with the knowledge of every other converters closed loop dynamics, and crosscoupled interactive effects. Due to this, studies have shown that this type of controller optimisation largely counteracts coupled interactions between converters [22]. The above studies show that full decentralisation with the capability of mitigating subsystem interactions is possible, however they all assume fixed frequency operation of the grid.…”

Section: Introductionmentioning

confidence: 99%

Decentralised Optimal Controller Design of Variable Frequency Three-Phase Power Electronic Networks Accounting for Sub-System Interactions

Dewar

Rohten

Formentini

et al. 2020

IEEE Open J. Ind. Applicat.

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Enhanced the Efficiency of Electronics Circuit by using Line Impedance Stabilization Network

Md. Farooque Azam,

Brijendra Mishra

2023

IJARSCT

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A Line Impedance Stabilization Network (LISN) is a crucial tool in the field of electromagnetic compatibility (EMC) testing and measurement. Its primary purpose is to ensure that conducted emissions from electrical and electronic devices are accurately measured in a controlled and standardized manner. After both circuit simulation in LTSpice firstly input noise simulation without LISN in first circuit and after that second circuit simulation in which we simulate input noise simulation with LISN we reached on the final conclusion is that by stabilizing the impedance of the power supply line, LISNs help filter out external interference and noise, allowing for precise measurements of the emissions generated by the DUT. They provide a standardized impedance interface between the device under test (DUT) and the measuring equipment, ensuring consistent and repeatable EMC testing results. We get desired result after simulation when we analysis both circuit simulation in details we get 33% improvement in frequency, noise decreases in terms of frequency and we get 3% improvement in power at output in LISN applying circuit.

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Fast Self-Tuning Decentralized Variable Frequency Optimal Controller Design for Three-Phase Embedded Grids

Cited by 3 publications

References 10 publications

Optimal and automated decentralised converter control design in more electrical aircraft power electronics embedded grids

Optimal and automated decentralised converter control design in more electrical aircraft power electronics embedded grids

Decentralised Optimal Controller Design of Variable Frequency Three-Phase Power Electronic Networks Accounting for Sub-System Interactions

Enhanced the Efficiency of Electronics Circuit by using Line Impedance Stabilization Network

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