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Title:
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Small signal stability analysis of offshore AC network having multiple VSC-HVDC system
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Author:
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Raza, Muhammad; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica; Universitat Politècnica de Catalunya. CITCEA - Centre d'Innovació Tecnològica en Convertidors Estàtics i Accionaments |
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Abstract:
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This article presents a small signal analysis of an offshore AC network to integrate offshore wind energy with the main AC grid at shore through more than one VSC-HVDC transmission system. The offshore AC network reference frequency and voltage are controlled by VSC-HVDC systems using frequency and voltage droop schemes. Droop scheme establish a closed loop control with reference frequency and voltage hereby affecting the system stability. An impedance based modeling approach has been proposed to formulate the network small signal model in order to analyze the influence that the droop gain exerts on the voltage and current control. An eigenvalue analysis has been performed to determine the system stability. It is further demonstrated how the frequency and voltage droop gains influence the overall system stability. In addition, the active and reactive power low pass measurement filters effects on the system stability is addressed. In the end, the performance of the developed system is evaluated through nonlinear dynamic simulation. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria elèctrica
-Mathematical models
-Power electronics
-Frequency control
-frequency droop
-grid-forming converters
-Mathematical model
-Offshore AC network
-offshore wind
-Power conversion
-Power system stability
-small-signal analysis
-Stability analysis
-Voltage control
-voltage droop.
-Models matemàtics
-Electrònica de potència |
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Rights:
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Document type:
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Article - Published version
Article |
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