Control and Analysis of Engine Governor for Improved Stability of DC Microgrid Against Load Disturbance

Choe, Sehwa; Son, Yang-Ju; Sul, Seung-Ki

doi:10.1109/jestpe.2016.2597309

Cited by 8 publications

(3 citation statements)

References 41 publications

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“…And, if the conventional governor of the AC-grid is applied to the DC-grid, it could worsen the power stability because gensets have their own limited load acceptance for sudden load disturbances (Choe, Son, andSul 2016, 1284). Particularly, the gas engine has limited over-boosting capability due to misfiring at lean mixtures, i.e., at high air/fuel ratios (CIMAC 2011, 4).…”

Section: Power Source Control Strategymentioning

confidence: 99%

DC-grid system for ships: a study of benefits and technical considerations

Kim

Park

Roh

et al. 2018

Journal of International Maritime Safety, Environmental Affairs

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The primary electric power system of ships has been based on the alternating current (AC) system for a long time. However, marine engineers started to question the efficiency of the ACgrid system, which was previously taken for granted and attempted to find a more efficient and eco-friendly electric power distribution system. Following this trend in the marine industry, the direct current (DC) system was adopted for the electric distribution system in ships and combined with the AC-grid. In this regard, this paper presents the technical, economic, and environmental benefits of the DC-grid system for marine applications. Ships that have already applied or plan to apply the DC-grid system are categorized into several types. Additionally, some technical considerations focused on the fault protection topology, the power-sharing (balancing) topology, power quality/stability issues, power source control methods, DC arc flash hazard, and international regulations/standards regarding DC-grid ships are reviewed. Lastly, the prospects of the DC-grid system in ships are addressed with a conclusion.

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Section: Power Source Control Strategymentioning

confidence: 99%

DC-grid system for ships: a study of benefits and technical considerations

Kim

Park

Roh

et al. 2018

Journal of International Maritime Safety, Environmental Affairs

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show abstract

“…The V 0 and V 7 vectors are referred to as zero voltage vectors because no actual voltage is output to the AC side load. The maximum output voltage of an inverter that can be linearly output in the SVPWM is equal to the radius of the circle that is inscribed in hexagon of Figure 3 [18][19][20][21]. The V0 and V7 vectors are referred to as zero voltage vectors because no actual voltage is output to the AC side load.…”

Section: Space Vector Pulse Width Modulation (Svpwm) In Steady Statementioning

confidence: 99%

“…This also causes a transient state of the DC distribution voltage, which refers to a fluctuation of the DC link voltage of the AC/DC converter. Also, DC-link voltage can be changed by AC voltage and current dips [17][18][19][20][21]. A robust DC voltage control characteristic of AC/DC PCS is required to supply power to the sensitive load (to voltage fluctuation) that is connected to the DC distribution in a stable manner.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Transient State Response through Feedforward Compensation Method of AC/DC Power Conversion System (PCS) Based on Space Vector Pulse Width Modulation (SVPWM)

et al. 2018

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In a DC distribution system configured by AC/DC power conversion system (PCS), the voltage control performance of the AC/DC PCS determines the stability and reliability of the DC distribution grid. The DC voltage of grid is maintained by capacitor, thus transient voltage is an inevitable problem when a grid is connected with a high amount of load or renewable energy. Space vector pulse width modulation (SVPWM) is well known as a stable modulation method and is used in AC/DC PCS and many types of topologies, but a solution for the transient states issue of DC link has not clearly been studied. In this paper, a feedforward compensation method based on the mathematical model of SVPWM is proposed to solve the transient state problem in a DC distribution system. The proposed method is verified by simulation and experiment. AC/DC PCS with the proposed feedforward compensation method has more robust DC voltage control characteristics.

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Tracking control of DC micro-grid based on the sampled H_∞ control with the quantisation error

Lai

Bao

et al. 2018

Journal of Control and Decision

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Control and Analysis of Engine Governor for Improved Stability of DC Microgrid Against Load Disturbance

Cited by 8 publications

References 41 publications

DC-grid system for ships: a study of benefits and technical considerations

DC-grid system for ships: a study of benefits and technical considerations

Improvement of Transient State Response through Feedforward Compensation Method of AC/DC Power Conversion System (PCS) Based on Space Vector Pulse Width Modulation (SVPWM)

Tracking control of DC micro-grid based on the sampled H_∞ control with the quantisation error

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Control and Analysis of Engine Governor for Improved Stability of DC Microgrid Against Load Disturbance

Cited by 8 publications

References 41 publications

DC-grid system for ships: a study of benefits and technical considerations

DC-grid system for ships: a study of benefits and technical considerations

Improvement of Transient State Response through Feedforward Compensation Method of AC/DC Power Conversion System (PCS) Based on Space Vector Pulse Width Modulation (SVPWM)

Tracking control of DC micro-grid based on the sampled H∞ control with the quantisation error

Contact Info

Product

Resources

About

Tracking control of DC micro-grid based on the sampled H_∞ control with the quantisation error