- document
-
Ahmadi, M. (author), Shekhar, A. (author), Bauer, P. (author)Power electronics converters will play a crucial role in power grid expansion. Superior advantages offered by MMC make it the most popular candidate amongst various converter topologies. However, due to a large number of components installed within MMC, reliability analysis is an unavoidable task that needs to be carried out to maximize the MMC...conference paper 2022
- document
-
Giannakopoulos, G. (author), Perilla Guerra, A.D. (author), Rueda, José L. (author), Palensky, P. (author)Power electronic dominated power systems formed nowadays are characterized by fast and frequent dynamics, limited short circuit support, low inertia conditions and lack of inertial support. Under these conditions, coping with active power imbalances in a power system may becomes a significant challenge for transmission system operators (TSOs)...conference paper 2022
- document
-
Liu, L. (author), Lekić, A. (author), Popov, M. (author)Due to its excellent performance, VSC-based high voltage direct current (HVDC) power systems draw significant attention. They are being heavily used in modern industrial applications, such as onshore and offshore wind farms, and for interconnection between asynchronous networks. However, the traditional proportional-integral (PI) control...conference paper 2022
- document
-
Marchand, Jane (author)Given the urgency to shift to a cleaner energy mix, offshore wind energy is bound to be quickly deployed on a large scale in the next years. In order to meet the Paris Agreement, the current role-out rate of wind energy in the North Sea, that is 2 GW/year, needs to be increased to an average value of 7 GW/year over the period 2023-2040. This...master thesis 2021
- document
-
Giannakopoulos, George (author)Power systems nowadays are experiencing a significant energy transition characterized by the progressive increment of power electronic interfaced units. Voltage source converters are extensively utilized to interconnect renewable energy sources at various transmission levels, facilitate the asynchronous interconnection of system areas through...master thesis 2021
- document
-
Ganeshpure, D.A. (author), Castro Heredia, L.C. (author), Ghaffarian Niasar, M. (author), Vaessen, P.T.M. (author), Soeiro, Thiago B. (author), Bauer, P. (author)This paper presents a comparison in Partial Discharge (PD) behaviour when an air corona setup is subjected to different waveforms, namely an idealized 50 Hz sinusoidal and staircase-based sinusoidal waveforms near inception voltage and at a higher voltage. In this study, it has been observed that the PD repetition rate and the Phase-Resolved PD ...conference paper 2021
- document
-
Ganeshpure, D.A. (author), Soeiro, Thiago B. (author), Ghaffarian Niasar, M. (author), Vaessen, P.T.M. (author), Bauer, P. (author)This paper comprehensivelyinvestigates the design trade-offs of a Modular Multilevel Converter (MMC) operations as an Arbitrary Wave shapesGenerator (AWG) to perform High Voltage (HV) dielectric testing of different grid assets. HV AWG applications pose unique operatingconditions to the MMC, which influences the selection of the various...journal article 2021
- document
-
Ganeshpure, D.A. (author), Soeiro, Thiago B. (author), Ghaffarian Niasar, M. (author), Vaessen, P.T.M. (author), Bauer, P. (author)This paper analyses different design trade-offs for a Modular Multilevel Converter (MMC)-based Arbitrary Wave shape Generator (AWG) used for High Voltage (HV) testing and certification of grid assets such as transformers, switchgear, and cables. Modulation techniques, number of submodules, output voltage levels, arm inductance, and series...conference paper 2021
- document
-
Ganesh, Saran (author), Perilla Guerra, A.D. (author), Rueda, José L. (author), Palensky, P. (author), Lekić, A. (author), van der Meijden, M.A.M.M. (author)This paper proposes a Electro-Magnetic Transient (EMT) model of a 2 GW offshore network with the parallel operation of two Modular Multi-level Converter (MMC)—High Voltage Direct Current (HVDC) transmission links connecting four Offshore Wind Farms (OWFs) to two onshore systems, which represent a large scale power system. Additionally, to...journal article 2021
- document
-
Roose, Thomas (author), Lekić, A. (author), Alam, Mohammad Meraj (author), Beerten, Jef (author)This paper analyzes high-frequency interactions between a Modular Multilevel Converter (MMC) and High Voltage Direct Current (HVDC) grid resonances by studying their effect on the system stability. The recent appearance of converter-related instabilities due to high-frequency oscillations at the converter's ac side raises concerns about whether...journal article 2020
- document
-
Kidambi Murali, Pragati (author)Renewable energy resources are the most successful, promising, and economical mode of energy generation. Moreover, wind energy is also one of the victorious candidates in generating renewable energy. Currently, High Voltage Direct Current (HVDC) systems are designed to integrate the energy harvested in the Offshore Wind Farms (OWF) to the grid...master thesis 2020
- document
-
Shukla, S. (author)The power system in Northern Europe supports a high degree of penetration of Wind Energy-based HVDC connections. Most of the modern HVDC connections will have Bipole with a dedicated metallic return (DMR) configuration. This thesis presents a basic guideline to increase the Levelized cost of operation of Bipole HVDC links by attaching the...master thesis 2020
- document
-
Shekhar, A. (author)Energy transition will inevitably lead to greater electrification. For example, it is anticipated that electrical energy demand will rise by at least 2-3 times by 2050 with increasing share of electric vehicles and heat pumps. This will translate to significant increase in power demand on the existing medium voltage distribution grid, resulting...doctoral thesis 2020
- document
-
Liu, Lian (author), Liu, Zhou (author), Popov, M. (author), Palensky, P. (author), van der Meijden, M.A.M.M. (author)HVDC technologies are widely acknowledged as one of solutions for the interconnection of renewable energy resources with the main electric power grid. The application of the latest modular multi-level converter (MMC) makes power conversion much more efficient. Due to the relatively low impedance in a DC system, DC fault currents may rise to an...journal article 2020
- document
-
Lourduraj, Getssy Prathiba (author)There is an increasing demand for compact onsite dielectric test systems of medium and high voltage equipment. Though there are commercially available mobile high voltage (HV) test sources, they have some important drawbacks such as limitation in voltage capability, complexity in building up the test setup and lack of versatility to test...master thesis 2019
- document
-
Ayala, P. Lozada (author), Rueda, José L. (author), Koreman, C. G.A. (author), van der Meijden, M.A.M.M. (author)To meet the goals of the Paris Agreement, the Netherlands is integrating large amounts of offshore wind energy into the power system and has ambitious plans for the coming years. A grid topology with transmission capacity above 1 GW connecting offshore wind farms (OWFs) at distances close to 100 km in a standardized, modular, and cost...conference paper 2019
- document
-
Shahnazian, Fatemeh (author), Ebrahim Adabi, M. (author), Adabi, Jafar (author), Pouresmaeil, Edris (author), Rouzbehi, Kumars (author), Rodrigues, Eduardo M. G. (author), Catalão, João P. S. (author)This paper presents a dynamic model of modular multilevel converters (MMCs), which are considered as an effective interface between energy sources and the power grid. By improving the converter performance, appropriate reactive power compensation is guaranteed. Modulation indices are calculated based on detailed harmonic evaluations of both...journal article 2019
- document
-
Lozada Ayala, Pedro (author)Recent projections estimate that the Netherlands needs circa 33 GW of offshore wind capacity in the North Sea to meet the goals of the Paris Agreement. To this end, the Dutch government has very ambitious plans to create new wind sites far from shore and integrate that power generation to the high-voltage power grid in the next years. Due to the...master thesis 2018
- document
-
Ganeshpure, Dhanashree (author)Conventional high voltage test sources, i.e., transformers (cascaded and resonant), impulse generators, and rectifier circuits generate 50 Hz/60 Hz sinusoidal, lightning and switching impulses, and DC respectively. For arbitrary wave shapes, function generator and HV amplifier setup are available up to 50 kV and few kHz signal bandwidths....master thesis 2018
- document
-
Kontos, E. (author)High Voltage DC (HVDC) grids provide an efficient solution for the transmission of bulk power over long distances between the energy production and consumption centers. Up to now, most of the implemented dc connections are point-to-point, creating dc links to strengthen the existing, predominantly ac, electricity grid. However, to optimize the...doctoral thesis 2018