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The use of direct current (dc) power networks, either at high voltage or at medium voltage, is being increasingly seen in modern smart grids. This is due to the flexible control possible with dc and its ability to transmit and distribute power under circumstances where alternating current (ac) networks are either unable to, or less economic. This paper provides an overview of the evolution of high-voltage...
The work presented in this paper describes an electromagnetic transient interaction study performed for an offshore wind park connected by a high voltage DC transmission link based on modular multilevel voltage sourced converter technology. Since original controls are considered highly confidential for all manufacturers and typically not open and available to all parties, the controls are integrated...
This paper deals with the utilization of High Voltage Direct Current connection (HVDC) based on Voltage Source Converter (VSC) technology in Modular Multilevel Converter (MMC) topology for the damping of power system oscillation. After a brief introduction to the basics of the MMC-VSC technology and the most common topology, the control configuration is described in detail. Building on these standard...
This paper presents a study initiated by the IEEE Working Group 15.05.02 “Dynamic Performance and Modeling of HVDC & FACTS”. The Working Group is concerned with the dynamic performance of HVDC and FACTS devices under different aspects in the time domain and in the frequency domain. Converter and controller modeling, electro-mechanic and electro-magnetic phenomena, and dynamic interaction with...
The work presented in this paper was developed during studies for the IEEE Working Group 15.05.02 “Dynamic Performance and Modeling of HVDC & FACTS”. The Working Group was initiated with the main task to study HVDC and FACTS devices under different aspects in the time domain and in the frequency domain. Converter and controller modeling, electro-mechanic and electro-magnetic phenomena, and dynamic...
The existing HVDC scheme connecting the North Island and the South Island of New Zealand is presently being upgraded to 1400 MW. As part of the HVDC upgrade, a time domain simulation model of the interconnector is developed and presented in this paper. The model will be used to study transient stability and the dynamic performance of the HVDC link and both interconnected power systems. Special features...
This paper introduces a model developed for modeling the steady-state and the dynamic behavior of the Trans Bay Cable Project as Voltage-Sourced Converter based on the Modular Multilevel Converter design. The model is intended for time domain simulations in an electromechanical simulation program with a balanced positive sequence network representation. Typical applications are transient stability...
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