Geometric‐based PID control design with selective harmonic mitigation for DC–DC converters by imposing a norm bound on the sensitivity function

Magossi, Rafael F. Q.; Han, Sangjin; Machado, Ricardo Q.; Oliveira, Vilma A.; Bhattacharyya, S.P.

doi:10.1049/iet-cta.2020.0768

Cited by 5 publications

(5 citation statements)

References 25 publications

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“…There are two parallel lines between the DC and AC buses each one comprising three inverters. Under the integrated bus, the harmonic powers are transmitted through the inverters on line 1 27 . Total reference active power is 46 kW (7 kW is allocated to diesel generators and 39 kW to wind turbines).…”

Section: The Proposed Control Systemmentioning

confidence: 99%

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Energy management in standalone AC / DC microgrid with sectionalized ring bus and hybrid resources

Hemmati

Faraji

2022

Intl J of Energy Research

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Summary This paper presents a novel control scheme on AC/DC ring bus islanded microgrid under unbalanced and non‐linear loads. The DC bus is integrated with the fuel cell, one wind turbine, and two batteries. The DC bus can be divided into two sub‐sections, where the first zone is supported by the fuel cell and battery 1, and the second zone is installed with the wind turbine and battery 2. The AC bus is also able to be sectionalized into two sub‐sections where the diesel generator and the unbalanced load are located on the first section and the non‐linear load with one wind turbine are placed on the other section. The DC bus is connected to the AC bus through two parallel three‐phase lines each one configured by three single‐phase inverters. The proposed control scheme in the ringed and separated modes presents several contributions including balancing the unbalanced loads, compensating the harmonics of non‐linear loads, improving the voltage stability and sag/swells, enabling partial operation under outages, and enhancing resilience. In the ring mode, wind turbine 1 and diesel generator inject balanced and linear P‐Q powers to the system as 39 kW/6 kVAr and 7 kW/9 kVAr, respectively. In the separated mode, the P‐Q powers of wind turbine 1 are 36 kW/9 kVAr and they are 15 kW/9 kVAr for diesel generators. In both modes, the unbalanced and non‐linear powers are supplied by the DC bus. The results verify that the developed control strategy efficiently deals with harmonic components, unbalanced currents and voltage issues.

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Section: The Proposed Control Systemmentioning

confidence: 99%

“…Under the integrated bus, the harmonic powers are transmitted through the inverters on line 1. 27 Total reference active power is 46 kW (7 kW is allocated to diesel generators and 39 kW to wind turbines). Total reference reactive power is 15 kVAr (9 kVAr is allocated to diesel generators and 6 kVAr to wind turbines).…”

Section: Network Understudymentioning

confidence: 99%

Energy management in standalone AC / DC microgrid with sectionalized ring bus and hybrid resources

Hemmati

Faraji

2022

Intl J of Energy Research

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“…das chaves eletrônicas que os compõem. Na literatura, uma grande parte dos trabalhos dedicados à síntese de controle para estes dispositivos são baseados em sistemas médios e em sinais de modulação de largura de pulso, veja a referência recente Magossi et al (2020) que propõe a síntese de um controlador PID para conversores de potência CC-CC com a finalidade de atenuar harmônicas selecionadas. Embora os resultados disponíveis a partir desta abordagem sejam amplamente empregados na indústria e constantemente aprimorados pela comunidade científica, a possibilidade de realizar o projeto utilizando diretamente o sistema original, sem o intermédio de sinais moduladores, permite tratar o problema sob uma perspectiva teórica mais abrangente, com possibilidade de resultados menos conservadores e maior chance de generalizações.…”

Section: Introdu ç ãOunclassified

Nova metodologia de controle para conversores de potência trifásicos CC-CA

Costanzo

Deaecto

Egidio

et al. 2021

Procedings Do XV Simpósio Brasileiro De Automação Inteligente

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In this work, a new switched control strategy is proposed to deal with three-phase DC-AC power converters, also known as three-phase inverters. More specifically, a switching rule is designed to command the inverter switches, at each instant of time, assuring global asymptotic tracking to a reference trajectory. A guaranteed performance cost is also taken into account. The reference trajectory is related to a constant voltage in the inverter input and sinusoidal phase currents, synchronous with the phase voltages, leading to a unitary power factor. This reference trajectory must belong to a set of trackable trajectories to be determined. The design conditions are obtained from a Lyapunov function that depends on the system electrical angle and are based on the solution of a simple Lyapunov equation. Simulation results put in evidence the effectiveness of the proposed methodology.

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“…For instance, in photovoltaic systems the output voltage of the photovoltaic arrays needs to be increased in order to be connected to the grid (Vázquez et al, 2013). There are several topologies of DC-DC converters in the literature which can provide output voltage greater than input, and among them, the boost converter has a simple structure (Ivanovic et al, 2014;Magossi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Reconfiguration strategy for a DC-DC boost converter using sliding mode observers and fault identification with a neural network

Carneiro

Silva

Faria

et al. 2021

Procedings Do XV Simpósio Brasileiro De Automação Inteligente

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In this paper, a method for the reconfiguration of the operation of DC-DC boost converters is proposed using sliding mode observers (SMOs). Open and high gain sensor faults are analyzed. The reconfiguration strategy involves mainly a fault detection and identification stages. In the fault detection stage, a SMO is designed for generating a residual and in the fault identification stage, an algorithm using neural network with pattern recognition is proposed. Two auxiliary SMO are used to estimate the sensor outputs to provide a proper feedback signal to keep the system stable in case of occurrence of fault. Simulation results of a DC-DC boost converter in the presence of faults illustrate the efficiency of reconfiguration strategy.

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Geometric‐based PID control design with selective harmonic mitigation for DC–DC converters by imposing a norm bound on the sensitivity function

Cited by 5 publications

References 25 publications

Energy management in standalone AC / DC microgrid with sectionalized ring bus and hybrid resources

Energy management in standalone AC / DC microgrid with sectionalized ring bus and hybrid resources

Nova metodologia de controle para conversores de potência trifásicos CC-CA

Reconfiguration strategy for a DC-DC boost converter using sliding mode observers and fault identification with a neural network

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