The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents a comparative study of voltage stability indices for three different long transmission technologies. High Voltage AC (HVAC), hybrid High Voltage DC (HVDC) and bipolar HVDC lines are compared in terms of voltage stability and point of collapse. Each scenario is analyzed with different lengths of transmission lines and in different contingency conditions. The impacts of HVDC control...
This paper presents an individual-phase-control (IPC) SVC compensation strategy for HVDC link with weak receiving AC side. Both uniform-phase-control (UPC) and IPC compensation policies are investigated. The paper employs PI control for the phase susceptance determination and star-delta transformation for line to line susceptance calculation. Inverter bus voltage behavior is studied and comparison...
This paper introduces a simplified HVDC model developed for modeling the steady-state and the dynamic behavior of a voltage-sourced converter based on the modular multilevel converter design. The simplified model is intended for time domain simulations in a positive sequence dynamic simulation program. The model is used for dynamic stability studies and performance analysis of the HVDC within a large...
The calculation of main circuit steady state parameters is an important part for the design of HVDC projects. This paper discusses the factors that should be considered in the calculation of the main circuit steady state parameters for HVDC system, including operation modes, restriction conditions, as well as the original data that should be provided. The paper also describes the calculation procedure...
This paper illustrates a study on HVDC light for its enhancement of AC/DC hybrid transmission system and multi-infeed HVDC system. In the sense of the realizing independent controlling of active and reactive power, HVDC light is more effective compared to the conventional HVDC system. An AC/DC parallel transmission system and a three-infeed HVDC system are modeled using PSCAD/EMTDC. Simulations corresponding...
In this paper a High Voltage Direct Current (HVDC) transmission system is proposed, based on using three level three phase (3L3P) converters, coupled through a specific transformer connection in order to benefit from natural and selective harmonic cancellation effects. In opposition to classical PWM-VSI-based HVDC systems, the presented converter configuration uses Square Wave Modulation in order...
Article on a novel approach to providing on route power supplies to rural and urban communities in close proximity to the extra high voltage DC transmission line; in addition to on route country bulk transfers and country point to point bulk transfers.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.