Browsing by Author "Sau Bassols, Joan"
Now showing items 1-15 of 15
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Anàlisi i control de tipologies de convertidors per a parcs eòlics marins connectats en HVDC
(Universitat Politècnica de Catalunya, 2014-03)
Master thesis (pre-Bologna period)
Open AccessAquest projecte presenta l'anàlisi, modelització, el control i la simulació de dues tipologies de convertidors per a sistemes HVDC (High Voltage Direct Current). Els convertidors estudiats són els VSC (Voltage Source ... -
Coordinated control design of the voltage and current loop of a current flow controller for meshed HVDC grids
(2017)
Conference report
Restricted access - publisher's policyThis paper is focused in the control design of a DC/DC Current Flow Controller (CFC) for meshed HVDC grids. It proposes a control design methodology based on an outer current loop to ... -
DC current flow controllers for meshed HVDC grids
(Universitat Politècnica de Catalunya, 2019-06-28)
Doctoral thesis
Open AccessMeshed High Voltage Direct Current (HVDC) grids are seen as solution to transmit and exchange high amounts of power across long distances or using submarine cables with high levels of flexibility and redundancy. Also, they ... -
Fault mode operation strategies for dual H-bridge current flow controller in meshed HVDC grid
(2018-07-01)
Article
Open Access -
Flexible converters for meshed HVDC grids: From Flexible AC Transmission Systems (FACTS) to Flexible DC grids
(Institute of Electrical and Electronics Engineers (IEEE), 2020-02-01)
Article
Open AccessFlexible Alternating Current Transmission Systems (FACTS) have achieved to enhance the flexibility of modern AC power systems, by providing fast, reliable and controllable solutions to steer the power flows and voltages ... -
Integrated HVDC circuit breakers with current flow control capability
(2018-02-01)
Article
Open AccessTwo key problems in meshed high-voltage direct current (HVDC) transmission grids are managing line power flows and protection against dc faults. Current flow controllers (CFCs) will be required to balance cable currents ... -
Modelling and control of an interline Current Flow Controller for meshed HVDC grids
(2017-02-01)
Article
Open AccessThis article is focused on the modelling and control of an interline Current Flow Controller (CFC) for meshed HVDC grids. The operation states of the CFC are presented and an average model is derived. The average ... -
Multiport interline current flow controller for meshed HVDC grids
(Institute of Electrical and Electronics Engineers (IEEE), 2020-07-01)
Article
Open AccessIn meshed high voltage direct current grids, the current of each line cannot be controlled independently, since it depends on the resistances between nodes. Additional devices, such as current flow controllers (CFCs), may ... -
Operation and control of a current source converter series tapping of an LCC-HVDC link for integration of offshore wind power plants
(2016-12)
Article
Open AccessThis work presents a series tapping station for integrating Offshore Wind Power Plants (OWPP) into a (Line Commutated Converter High Voltage Direct Current) LCC-HVDC transmission system. The tapping station allows to ... -
Optimal operation of hybrid high voltage direct current and alternating current networks based on OPF combined with droop voltage control
(2018-10)
Article
Open AccessThis study focuses on the operation and control of HVDC multi-terminal systems that transmit the power being generated in offshore wind farms to the terrestrial AC grids. The aim of the paper is to propose and validate an ... -
Optimal power flow operation of an interline current flow controller in an hybrid AC/DC meshed grid
(2019-12-01)
Article
Open AccessThis paper is meant to show that an interline Current Flow Controller (CFC) is able to reduce the operating costs of hybrid AC/DC meshed grids by alleviating the congestion within the DC lines. The work considers a ... -
Selective operation of distributed current flow controller devices for meshed HVDC grids
(Institute of Electrical and Electronics Engineers (IEEE), 2018-06-18)
Article
Restricted access - publisher's policyIn meshed High Voltage Direct Current (HVDC) grids, Current Flow Controllers (CFC) may be required to avoid bottlenecks or line overloads. The present paper proposes the concept of installing Distributed Current Flow ... -
Series interline DC/DC current flow controller for meshed HVDC grids
(2017-07-30)
Article
Restricted access - publisher's policyThis paper proposes a DC/DC Current Flow Controller (CFC) for meshed High Voltage Direct Current (HVDC) grids. The CFC has the advantage of a simplified structure that allows to use minimum number of switches when ... -
Suitable method of overloading for fast primary frequency control from offshore wind power plants in multi-terminal DC grid
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Restricted access - publisher's policyIncreased penetration of offshore wind power plants (OWPPs) demands frequency control services from them. Overloading the wind turbine, for few seconds after the under frequency event, ... -
Transformerless DC/DC converter based on the autotransformer concept for the interconnection of HVDC grids
(2018)
Conference report
Restricted access - publisher's policyDC/DC autotransformers present several advantages compared to Front-To-Front (F2F) topologies. This work presents the Transformerless (TL) DC/DC autotransformer topology, which consists on the substitution of the AC ...
