An overview of the HVDC transmission system models in planning tools: the Italian experience

Michi, L.; Donnini, Giacomo; Capurso, P.; Bugliari, A. Caldarulo; Falorni, F.; Quadrio, M.; Canever, D.; Giorgi, L.

doi:10.1109/aeit-hvdc.2019.8740460

Cited by 10 publications

(4 citation statements)

References 3 publications

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“…Te converters are 6-pulse converters, where there are two commutation groups and three branches in each group. Accordingly, the DC voltage is calculated by using equation (7). Te converter stations are thyristor-based and the DC voltage depends on the fring angle (α).…”

Section: Jordan's Model Using the Lcc-hvdc Transmissionmentioning

confidence: 99%

“…Te connection point between the AC and DC systems is called the point of common coupling (PCC). It is typically used to track and control the active and reactive power injection into and out of the AC system [7]. Two diferent types of converter stations are typically used: line-commutated converters (LCC) and voltage source converters (VSC).…”

Section: Introductionmentioning

confidence: 99%

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Power System Analysis of Moving from HVAC to HVDC in the Presence of Renewable Energy Resources

Saadeh,

Abu Sba,

Dalala

2023

Journal of Electrical and Computer Engineering

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As global energy consumption continues to increase, increased utilization and adaptation of renewable energy resources have tremendously increased over the last decades. Unfortunately, despite the many benefits of renewable energy resources, the intermittent nature of generation and the far distance of large installations from demand centers have tremendous effects on the connecting grid’s stability. In this study, high-voltage direct current (HVDC) systems are proposed as a solution for stable and reliable grid operation in the presence of large renewable energy installations. This research investigates the deployment of an HVDC system into an entire network rather than studying it as an isolated radial system. Various power system analysis functions for both static and dynamic conditions are used to study the effect of integrating an HVDC system on the overall network’s stability. To verify the proposed approach, Jordan’s national electric grid was modeled and used as a case study. The results show when deploying HVDC transmission, losses are reduced by 70% from the baseline case, in addition to better handling of contingency events and enhanced grid’s stability when examining the generator’s rotor angle and speed. Rigorous modeling and simulations of the proposed system structure show the feasibility and prove the advantages of modern HVDC systems over HVAC counterparts.

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Section: Jordan's Model Using the Lcc-hvdc Transmissionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Power System Analysis of Moving from HVAC to HVDC in the Presence of Renewable Energy Resources

Saadeh,

Abu Sba,

Dalala

2023

Journal of Electrical and Computer Engineering

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“…With the continuous progress of HVDC technology, DC transmission projects are developing rapidly all over the world. [1][2][3][4] As one of the core components in the process of DC transmission, the state of converter transformer will directly affect the reliability of power grid. [5][6][7] Compared with ordinary AC transformer, converter transformer will produce more harmonic and DC components due to the converter process, and then affect the grounding current.…”

Section: Introductionmentioning

confidence: 99%

“…With the continuous progress of HVDC technology, DC transmission projects are developing rapidly all over the world. 1–4 As one of the core components in the process of DC transmission, the state of converter transformer will directly affect the reliability of power grid. 5–7…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling and experimental research on grounding current calculation of converter transformer core

Zhou,

Tian,

et al. 2023

Measurement and Control

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When the converter transformer core is grounded at multi-points, a fault loop will be formed and a circulation will be generated, leading to local overheating of the magnetic core and decomposition of insulating oil. Therefore, the converter transformer core will be single point grounded. As a rare internal lead of converter transformer, the ground current on the core ground lead can often reflect the running state of converter transformer. In this paper, theoretical analysis, modeling simulation and experimental research are carried out on the ground current of converter transformer at one point. Firstly, according to the structure characteristics of converter transformer, the analytical modeling of ground current is carried out. Secondly, based on the structure characteristics of oil paper insulation, the equivalent capacitance of converter transformer is calculated. Then, the analytical and finite element simulation model of converter transformer is established, and the ground current of converter transformer is calculated. Finally, the correctness of the proposed scheme is verified by measuring the grounding current of converter transformer core.

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Comparative Performance Analysis of HVDC and HVAC Transmission Systems in the Presence of PV Generation: A Case Study using the IEEE-5-Bus Network

Saadeh,

Sba,

Dalala

et al. 2023

2023 AEIT HVDC International Conference (AEIT HVDC)

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An overview of the HVDC transmission system models in planning tools: the Italian experience

Cited by 10 publications

References 3 publications

Power System Analysis of Moving from HVAC to HVDC in the Presence of Renewable Energy Resources

Power System Analysis of Moving from HVAC to HVDC in the Presence of Renewable Energy Resources

Mathematical modeling and experimental research on grounding current calculation of converter transformer core

Comparative Performance Analysis of HVDC and HVAC Transmission Systems in the Presence of PV Generation: A Case Study using the IEEE-5-Bus Network

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