Impact of HVDC integration on the dynamic security of power systems

Mochamad, Rian Fatah; Preece, Robin

doi:10.1049/cp.2016.1086

Cited by 3 publications

(3 citation statements)

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“…In (4), δ max is the maximum angle separation of any two generators at the same time in the post-fault response. The TSI has a range of 0-100 with values closer to 100 denoting a more stable system [19].…”

Section: ) Small-disturbance Stability Critical Modal Damping Factomentioning

confidence: 99%

“…Voltage stability can be measured by using the system loadability index (SLI). The SLI is defined as the percentage of additional load compared to the base load which can be supported by the system before voltage collapse [19]. This can be determined by calculating the nose point in the P-V curve using continuation power flow.…”

Section: ) Voltage Stability System Loadability Index (Sli)mentioning

confidence: 99%

“…In the interest of showcasing the impact of VSC-HVDC on the interdependency of various power system dynamics, four test cases are developed based on the modified NETS. r Complete Case: The combination of parallel (one HVDC link at bus [16][17][18][19] and infeed VSC-HVDC (one HVDC link at bus 7) represents the fourth test case. Both the infeed and the complete test cases include 10% RES penetration (with respect to total load).…”

Section: Test System Descriptionmentioning

confidence: 99%

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Assessing the Impact of VSC-HVDC on the Interdependence of Power System Dynamic Performance in Uncertain Mixed AC/DC Systems

Mochamad

Preece

2020

IEEE Trans. Power Syst.

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In recent years, voltage source converter (VSC) HVdc has emerged as an excellent solution for transmitting offshore renewable energy sources and strengthening transmission corridors. It is also reported in the literature that VSC-HVdc is able to enhance specific types of stability. With growing capacity of VSC-HVdc and increasing uncertainty in the current power system, it is essential to perform a rigorous analysis of its impact on the interdependence of power system dynamics. This paper presents a methodology for the thorough assessment of the impact of VSC-HVdc on interdependence among four types of stability: small-disturbance rotor angle, large-disturbance rotor angle, frequency, and voltage. This analysis is performed assuming uncertain conditions for various VSC-HVdc topologies and system loading and generation conditions. The impact of the VSC-HVdc on the interdependence of dynamic performance is assessed using the Spearman correlation coefficient as a quantification tool. The results obtained show that a significant alteration over the interdependence between power system dynamics occurs with the addition of VSC-HVdc.

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Section: ) Small-disturbance Stability Critical Modal Damping Factomentioning

confidence: 99%

Section: ) Voltage Stability System Loadability Index (Sli)mentioning

confidence: 99%