An Indirect Approach to Control an Active Capacitor

Lin, Jun

doi:10.1109/jestpe.2019.2919649

Cited by 13 publications

(4 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the sake of comparison, the virtual impedance schemes proposed in [38] and [39], the virtual resistance schemes proposed in [14] and [18] and the voltage ripple mitigator scheme proposed in [15] are utilized instead of the proposed GA, under the same test conditions (summarized in Table 1), and the results are depicted in Figs. 13-15. Based on the results that are shown in these figures, we conclude that the activation of the methods under study results to the immediate mitigation of V 2zf ,1 but this does not lead to the full compensation of V 2bus in the presence of line impedances.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…These requirements make them unsuitable for distributed power ripple compensation in microgrids. So, the APD methods that have been considered in this analysis, are those in [14]- [18], [38], and [39], and the method proposed in this paper.…”

Section: Comparative Analysismentioning

confidence: 99%

“…Finally, none of the APD methods under consideration needs connected to the DC bus (which is the most likely scenario) and the operational cost of the microgrid must be kept low. If the compensation circuit is directly connected to the DC bus or the extra cost is not a burden, then the methods proposed in [14], [15], [16], [38], and [39] are more suitable for power compensation since they have better response times. However, these requirements are rarely met, so the proposed method is more appropriate in most scenarios.…”

Section: Comparative Analysismentioning

confidence: 99%

See 2 more Smart Citations

Genetic Algorithm on 2^nd Voltage Harmonic Mitigation in Hybrid Microgrids

2022

View full text Add to dashboard Cite

This work introduces a compensation scheme that uses a genetic algorithm to mitigate the 2 nd voltage harmonic component of hybrid microgrids. The foremost advantage of the proposed scheme, is its capability to effectively compensate the 2 nd harmonic component regardless of the feeder impedance, the location of the equipment and without any need for real-time communications. A graphical representation of the genetic algorithm parameters is also presented, being a handily tool for designing it for any microgrid application and the mathematical analysis of hybrid microgrids under the prospect of harmonic compensation is given. Simulations and experimental tests verify the effectiveness of the proposed method, indicating that its efficiency is maintained at about 90%, while the efficiency of the other methods falls below 35% when the impedance of the connection line increases at 1+ j0.16 (@100Hz) . Finally, a comparative analysis is also performed between the proposed method and existing ones.INDEX TERMS Microgrid, power decoupling, genetic algorithm, single-phase systems.

show abstract

Section: Simulation Resultsmentioning

confidence: 99%

Section: Comparative Analysismentioning

confidence: 99%

Section: Comparative Analysismentioning

confidence: 99%

See 1 more Smart Citation

Genetic Algorithm on 2^nd Voltage Harmonic Mitigation in Hybrid Microgrids

2022

View full text Add to dashboard Cite

show abstract

“…The proposed control algorithm allows to connect the VIC directly to the DC-BUS in the same way as a passive capacitor; therefore, in this case, plugand-play operation is applicable. Note that this work is a breakthrough for much of the VIC-based research that allows plug-and-play operation, including a significant reduction of DC-BUS ripples to a very low level by an improved control method [103,104], modular realization of the active capacitor [105], and electric vehicle (EV) charger applications [106].…”

Section: Capacitor Dynamic Behavior Imitation Strategy (Infinite Capa...mentioning

confidence: 99%

Topological Overview of Auxiliary Source Circuits for Grid-Tied Converters

et al. 2023

View full text Add to dashboard Cite

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.

show abstract