A new method of damping harmonic resonance at the DC-link of a large-capacity rectifier-inverter system

Tanaka, Toshihiko; Funabiki, Shigeyuki

doi:10.1109/peds.1999.792824

Cited by 14 publications

(4 citation statements)

References 3 publications

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“…The results reveal that a few types of active DC links can achieve lower inverter design cost compared to a passive DC link in the scenario of a relatively high reliability requirement, which is relevant to many industry applications. In particular, solutions having a series-connected auxiliary circuit [45] , and [46] are the most cost-effective ones. The methods presented in [45] and [46] enable lowest design cost since the auxiliary circuit processes the ripple voltage of the capacitor connected in series to it, and the ripple current of the DC link only.…”

Section: A Two-terminal Active Capacitormentioning

confidence: 99%

“…In particular, solutions having a series-connected auxiliary circuit [45] , and [46] are the most cost-effective ones. The methods presented in [45] and [46] enable lowest design cost since the auxiliary circuit processes the ripple voltage of the capacitor connected in series to it, and the ripple current of the DC link only. However, none of the active capacitive DC links can be used as a plugand-play active capacitor, since they have more terminals than a conventional capacitor, e.g., connections to an external power source for gate drivers and controller, and/or external feedback signals from the main circuits.…”

Section: A Two-terminal Active Capacitormentioning

confidence: 99%

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Capacitive DC links in power electronic systems-reliability and circuit design

Wang

Wang²

2018

Chin. J. Electr. Eng.

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Capacitive DC links are an important part in voltage source power electronic converters, which contribute to cost, size and failure rate on a considerable scale. With more and more stringent constraints brought by industrial applications, the capacitive DC links encounter reliability aspect challenges. This paper presents a review on the reliability design and improvement of capacitive DC links from three aspects: 1) Quantitative reliability prediction for DC-link capacitors; 2) Reliabilityoriented design of passive DC-link capacitor banks; and 3) Advanced active DC links to exceed the limits of passive DC-link capacitors. Key solutions for each aspect are highlighted and discussed with case studies. This review serves to provide a picture of state-of-the-art research on the reliability design and improvement of capacitive DC links, highlight the key milestones in this area, and identify the corresponding challenges and future research directions.

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Section: A Two-terminal Active Capacitormentioning

confidence: 99%

Section: A Two-terminal Active Capacitormentioning

confidence: 99%

Capacitive DC links in power electronic systems-reliability and circuit design

Wang

Wang²

2018

Chin. J. Electr. Eng.

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“…This method is based on simulating a damping resistor to suppress the resonance. In the DC sides of power converters, some methods using the additional circuits such as DC-side shunt-or seriesactive filters have been proposed for maglev feeding systems and HVDC systems [17][18][19]. The DC active filter is connected to the capacitors in series.…”

Section: (Solution)mentioning

confidence: 99%

A DC‐side damping control method for power converters to suppress resonance in DC power network

Sato

2012

IEEJ Transactions Elec Engng

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This paper describes a damping control method of power converters for suppression of resonance in DC power network. The resonance occurs when a resonant frequency of the DC distribution line coincides with the frequency of the harmonic or interharmonic components generated by the power converters. For detailed investigation, a combined system which consists of a pulse-width modulated (PWM) rectifier and a PWM inverter is treated as the simplest example. To suppress the resonance, a DC-side damping control method is proposed and its implementation and design method are discussed in detail. Then, the proposed damping control method is applied to the combined system of a PWM rectifier and a PWM inverter. Experimental results verify the validity and practicability of the proposed damping control method.

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“…ASC addition DC-BUS case, series connection with the capacitor side: The ASC unit is based on the same principle as the previous solution. However, the main difference among the methods is that in this case, the ASC unit is located in series connection with the DC capacitor across the DC-BUS [47,48]. Therefore, unlike the previous solution, the voltage ripple is reduced on both sides of the DC-BUS (AC/DC or DC/AC side).…”

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confidence: 99%

Topological Overview of Auxiliary Source Circuits for Grid-Tied Converters

et al. 2023

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This paper reviews different types of capacitors and auxiliary source circuit topologies and presents an introduction to control strategies used for circuit applications reducing DC-BUS capacitance. The paper argues in favor of replacing bulky electrolytic capacitors in capacitor-supported power electronic systems with auxiliary source circuits. DC-BUS capacitors are widely used in grid-tied power converters (rectifiers) and utilized for power balance, voltage ripple limitation, and short-term energy storage. The electrolyte capacitor is the Achilles heel of any rectifier and power converter due to its higher rate of failure than other circuitry components. Auxiliary source circuits are key components to qualitatively improve the reliability of the DC links, where they divert the instantaneous pulsating power into extra reliable storage components. Unlike previous work, this review serves to provide a clear picture of an auxiliary source circuit design, in favor of optimal solution selection according to the specific application. Therefore, energy storage components (capacitors), topologies, and control strategies of auxiliary source circuits are comprehensively reviewed in this paper. Additionally, detailed explanations, comparisons, and discussions of auxiliary source circuits are offered.

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A new method of damping harmonic resonance at the DC-link of a large-capacity rectifier-inverter system

Cited by 14 publications

References 3 publications

Capacitive DC links in power electronic systems-reliability and circuit design

Capacitive DC links in power electronic systems-reliability and circuit design

A DC‐side damping control method for power converters to suppress resonance in DC power network

Topological Overview of Auxiliary Source Circuits for Grid-Tied Converters

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