Modeling and real time simulation of an HVDC inverter feeding a weak AC system based on commutation failure study

Mankour, Mohamed; Khiat, Mounir; Ghomri, Leila; Chaker, Abdelkader; Bessalah, Mourad

doi:10.1016/j.isatra.2018.03.028

Cited by 11 publications

(6 citation statements)

References 9 publications

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“…As seen in Table 1, the model was applied in the simulator, with the rectifier connected to the first AC system (315 kV, SCR=5) and the inverter connected to the second AC system (230 kV, SCR=3). The main LCC HVDC link: AC systems, Power transformers, DC-link, AC-Filters [18], and Converters (rectifier and inverter) are more precisely defined in [5] and [19].…”

Section: Lcc-hvdc Linkmentioning

confidence: 99%

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Protection of an HVDC Link Towards Modeling and Simulation Based DC Connection Defects

Mohamed¹,

Sami²

2022

Advances in Intelligent Systems Research

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This paper aims to study the DC-link faults and recovery scenarios based on a 12-pulse HVDC (High Voltage Direct Current) link system. DC-link to ground fault is considered as one of the most serious fault that can occur on HVDC-link. Therefore, in order to understand the system behavior in the presence of this type of fault, two DC-fault scenarios are investigated. One scenario is at the sending end of the rectifier, and the other is at the receiving end of the inverter. The faults are applied mainly to study the dynamic performance of the recovery of HVDC-link system after faults, and to validate the proposed DC fault protection function. Influence of the Voltage Dependent Current Order Limiter (VDCOL) function is also studied. The digital real-time simulator laboratory (RT-Lab) platform HYPERSIM (OP-5600) is used in modeling and simulation of the HVDC-link system by means of Software-In-the-Loop (SIL) approach. The maintenance of the system stability is investigated to ensure a high performance recovery from the fault. Ramp-up recovery method used in the DCbus voltage restoration provided by the VDCOL-function, and the validated operation of protection function against DC faults show high performance recovery from the faults. The results carried out ensure safe and desired recovery from the DC-bus faults.

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Section: Lcc-hvdc Linkmentioning

confidence: 99%

“…To ensure these devices' security and dependability, the integrity, safety, and fast recovery from unbalancing situations must be assessed [3]. HVDC device security necessitates safeguarding the rectifier, inverter stations, and DClink transmission [4] [5].…”

Section: Introductionmentioning

confidence: 99%

Protection of an HVDC Link Towards Modeling and Simulation Based DC Connection Defects

Mohamed¹,

Sami²

2022

Advances in Intelligent Systems Research

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“…Conventional LCC stations utilized 6-pulse thyristor bridges shown in Figure 9( That is, high-Power LCC transmission often links generation areas with higher inertia and shortcircuit level to receiving load centres that could be substantially weaker due to their lack of rotating machines [46,62]. Connecting receiving LCC stations to weak AC networks can cause significant problems (e.g.…”

Section: Technical Lcc Assessmentmentioning

confidence: 99%

“…Converter transformers in both VSC and LCC stations typically utilize automatic On-Load-Tap-Changers (OLTCs) to regulate grid and converter voltages within allowable tolerance limits [132,133]. OLTCs are operated to maintain constant DC side voltages by correspondingly fixing the converter interfacing AC voltage to mitigate commutation failures [62,134].…”

Section: Bipolar Configurationsmentioning

confidence: 99%

“…Examples include the Baltic Cable link between Germany and Sweden, the IFA Cross-Channel link between the UK and France, and the Western link project within the UK[46,139]. Finally, more detailed insights of LCC-HVDC control structures can be accessed from[46,57,62,64]. HVDC systems are superior in terms of providing independent control of active and reactive powers, and their suitability for integration into weak AC grids.…”

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confidence: 99%

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HVDC Transmission: Technology Review, Market Trends and Future Outlook

Alassi

Bañales

Ellabban

et al. 2019

Renewable and Sustainable Energy Reviews

303

104

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HVDC systems are playing an increasingly significant role in energy transmission due to their technical and economic superiority over HVAC systems for long distance transmission. HVDC is preferable beyond 300-800 km for overhead point-to-point transmission projects and for the cable based interconnection or the grid integration of remote offshore wind farms beyond 50-100 km. Several HVDC review papers exist in literature but often focus on specific geographic locations or system components. In contrast, this paper presents a detailed, up-to-date, analysis and assessment of HVDC transmission systems on a global scale, targeting expert and general audience alike. The paper covers the following aspects: technical and economic comparison of HVAC and HVDC systems; investigation of international HVDC market size, conditions, geographic sparsity of the technology adoption, as well as the main suppliers landscape; and high-level comparisons and analysis of HVDC system components such as Voltage Source Converters (VSCs) and Line Commutated Converters (LCCs), etc. The presented analysis are supported by practical case studies from existing projects in an effort to reveal the complex technical and economic considerations, factors and rationale involved in the evaluation and selection of transmission system technology for a given project. The contemporary operational challenges such as the ownership of Multi-Terminal DC (MTDC) networks are also discussed. Subsequently, the required development factors, both technically and regulatory, for proper MTDC networks operation are highlighted, including a future outlook of different HVDC system components. Collectively, the role of HVDC transmission in achieving national renewable energy targets in light of the Paris agreement commitments is highlighted with relevant examples of potential HVDC corridors.

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Study of an HVDC Link in Dynamic State Following AC Faults and Commutation Failures Based on Modeling and Real-Time Simulation

Mankour

Ghomri

Bessalah

2020

Diagnosis, Fault Detection &Amp; Tolerant Control

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Modeling and real time simulation of an HVDC inverter feeding a weak AC system based on commutation failure study

Cited by 11 publications

References 9 publications

Protection of an HVDC Link Towards Modeling and Simulation Based DC Connection Defects

Protection of an HVDC Link Towards Modeling and Simulation Based DC Connection Defects

HVDC Transmission: Technology Review, Market Trends and Future Outlook

Study of an HVDC Link in Dynamic State Following AC Faults and Commutation Failures Based on Modeling and Real-Time Simulation

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