DC Side Filters for Multiterminal HVDC Systems

Shore, N. L.; Adamson, Kerry-Ann; Bard, Pierre‐Yves; Kapoor, Sanjiv; Kent, K.L.; Burton, R.S.; Clarke, C.D.; Pereira, F. P.; Pincella, C.; Coutu, André; Sadek, K.

doi:10.1109/mper.1996.4311046

Cited by 3 publications

(4 citation statements)

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“…These deviations can impact parts or the entire system producing severe consequences [27]. Although DC systems are more stable and reported to be less susceptible to voltage deviations and distortions more research is required for this area as the utilization of DC distribution may develop in the near future.…”

Section: Power Qualitymentioning

confidence: 99%

“…Although power quality deviations and standards have concentrated on AC systems, DC systems are also vulnerable to voltage deviations such as voltage spikes, transients and ripples. These deviations can impact parts or the entire system producing severe consequences [27]. Although DC systems are more stable and reported to be less susceptible to voltage deviations and distortions more research is required for this area as the utilization of DC distribution may develop in the near future.…”

Section: Hardware-in-loop/real-time Digital Simulationmentioning

confidence: 99%

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Trends, challenges and opportunities in power quality research

Bollen

Ribeiro

et al. 2009

Int Trans Elec Energy Syst

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SUMMARYThis paper outlines a number of possible research directions in power quality. The introduction of new sources of generation will introduce the need for new research on voltage-magnitude variations, harmonic emission and harmonic resonance. Statistical performance indicators are expected to play an important role in addressing the hosting capacity of the power system for these new sources. The quickly growing amounts of power-quality data call for automatic analysis methods. Advanced signal-processing tools need to be developed and applied to address this challenge. Equipment with an active power-electronic interface generates waveform distortion at higher frequencies than existing equipment. The emission, spread, consequences and mitigation of this distortion require more research emphasis. The growing complexity of the power system calls for remote identification of system events and load transitions. Future DC networks, at different voltage levels, require the research on DC power quality next to AC power quality. Research on methods to describe and analyse time-varying harmonics has applications in a number of the above-mentioned issues. So does the use of hardware-in-the-loop (HIL) and real-time-digital simulation.Existing power quality standards should not form a barrier against future research; instead research should result in improved standards as well as completely new concepts. Examples are: voltage dips in three-phase systems, flicker due to non-incandescent lamps, and voltage variations on the timescale between 1 second and 10 minutes.All together, it is concluded in this paper that sufficient important and interesting research challenges and opportunities remain in the power quality area.

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Section: Power Qualitymentioning

confidence: 99%

Section: Hardware-in-loop/real-time Digital Simulationmentioning

confidence: 99%

Trends, challenges and opportunities in power quality research

Bollen

Ribeiro

et al. 2009

Int Trans Elec Energy Syst

View full text Add to dashboard Cite

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“…The propagation of background harmonics from one end ac system to the remote one in a point-to-point VSC-based HVDC system has been studied in [9]; however, the harmonic interaction in a multi-terminal VSC-based HVDC system has not been investigated yet. In a multi-terminal VSC-based HVDC system, a number of possible topologies are established, thus affecting the appearance of parallel resonance points at low frequency range in the dc grid [3,10]. If that a modest harmonic current at the resonance frequency will cause a relative high dc harmonic voltage, correspondingly, it causes significant harmonic voltages on the ac sides.…”

Section: Introductionmentioning

confidence: 99%

Inter-harmonics in multi-terminal VSC-based HVDC systems

Han

Nguyen

Yan

2015

J. Mod. Power Syst. Clean Energy

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Multi-terminal voltage sourced converter (VSC)-based high voltage direct current (HVDC) system composes of a number of VSCs connected to an HVDC grid (or dc grid). The dc grid is often configured by cable interconnections between converter stations, thus imposing resonance issues affecting harmonic interaction in the system. Based on the harmonic transfer characteristics of VSC and HVDC systems, the appearance and the interaction of inter-harmonics in the multi-terminal VSC-based HVDC system are analyzed. Simulation models are built and implemented using SimPowerSystems in MATLAB. The simulation results show that, a series of inter-harmonics are produced and tend to be dominant in low-frequency range. Especially in the dc grid, the inter-harmonic transfer can be magnified due to inter-harmonic resonances. The complex resonance issues in the dc grid are investigated in combination with interaction through the VSC, it is beneficial to harmonic filter designs as well as other harmonic mitigation methods.

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“…A detailed description of some of the most common two-terminal and multiterminal systems currently in operation is presented in [9]. In depth analysis on the DC filters and interference of multiterminal DC systems upon neighbouring equipment can be found in [10]. Although the use of its counterpart VSC-based HVDC technology appears as the trend for the establishment of future DC systems, it is still encountering some limitations which may delay its application for the transmission of bulk power.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Performance of Line Commutated Converter-Based Multiterminal HVDC Systems

Vasquez-Arnez

Jardini

Bassini

2015

ELECTROTECHNICAL REVIEW

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In this article, the modelling and simulation results related to the dynamic performance of a multiterminal HVDC system, based on Line Commutated Converters (LCC), is presented. The four-converter HVDC system simulated operates at 500 kV. In order to evaluate its behaviour in a more realistic way, the multiterminal HVDC system was embedded into an equivalent ac network that resembles an existing high voltage system. A model to represent the ac generator dynamics (speed regulator and voltage controller), which interacts with the DC system, is also presented in the paper. The converter blocking condition, which is another HVDC operative requirement, was also simulated. From the dynamic response of the converters and ac sources obtained, it can be stated that the LCC-based multiterminal HVDC system can be a good alternative to be considered while analysing issues like planning, expansion and transmission of bulk power. Streszczenie. W artykule zaprezentowano modelowanie i symulację właściwości dynamicznych systemu HVDC bazującego na układzie LineCommutated Converter LCC. W celu oceny właściwości w bardziej realistycvznych warunkach system HVDC został wbudowany w odpowiednią sieć AC co przypomina istniejące systemy wysokiego napięcia. Na podstawie badań stwierdzono że wieloterminalowy system HVDC może być dobra alternatywą dla istniejących systemów. Właściwości dynamiczne wieloterminalowego systemu HVDC wykorzystującego układy LCC

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DC Side Filters for Multiterminal HVDC Systems

Cited by 3 publications

References 0 publications

Trends, challenges and opportunities in power quality research

Trends, challenges and opportunities in power quality research

Inter-harmonics in multi-terminal VSC-based HVDC systems

Dynamic Performance of Line Commutated Converter-Based Multiterminal HVDC Systems

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