Concept
Synchronous condenser
Related publications (38)
Performance assessment of Synchronous Condensers vs Voltage Source Converters providing grid-forming functions
Having sufficient grid-forming sources is one of the necessary conditions to guarantee the stability in a power system hosting a very large share of inverter-based generation. The grid-forming function has been historically fulfilled by synchronous machine ...
IEEE2021Performance assessment of grid-forming and grid-following converter-interfaced battery energy storage systems on frequency regulation in low-inertia power grids
Mario Paolone, Fabrizio Sossan, Yihui Zuo, Antonio Zecchino, Zhao Yuan
Power systems with large shares of converter-interfaced renewables may be characterised by low grid inertia due to the lack of frequency containment provided by synchronous generators. Battery energy storage systems (BESSs), which can adjust their power ou ...
2021Impact of battery energy storage systems on the dynamic behavior of low-inertia power grids
The extensive deployment of non-synchronous generation determines lower level of grid inertia resulting in deteriorated frequency containment performance and abnormal frequency excursions in case of contingency. This calls for identifying assets, controls, ...
EPFL2021Lightning-Induced Voltage on an Overhead Transmission Line Terminated with Non-vertical Risers
Marcos Rubinstein, Farhad Rachidi-Haeri, Jun Guo
Recently, a simple and efficient method was proposed to take into account non-vertical risers for transmission lines excited by external fields. In this paper, the proposed method is used to investigate the effect of non-vertical risers on lightning-induce ...
2021Lightning-Induced Voltage on an Overhead Transmission Line Terminated with Non-veritical Risers
T Recently, a simple and efficient method was proposed to take into account non-vertical risers for transmission lines excited by external fields. In this paper, the proposed method is used to investigate the effect of non-vertical risers on lightning-indu ...
IEEE2021Grid-Supporting Battery Energy Storage Systems in Islanded Microgrids: A Data-Driven Control Approach
Alireza Karimi, Reza Razzaghi, Behrooz Bahrani
Islanded microgrids have low real and reactive power generation capacity and low synchronous inertia. This makes them susceptible to large frequency and voltage deviations caused by switching of large loads or equipment failures. These events deteriorate p ...
2020Design of an inverter for high-speed synchronous generators using SiC FETs
Existing inverter designs are not well-suited for use with high-speed generators due to the IGBTs used as switching elements, which are not fast enough. SiC FETs offer a lower switching time compared to IGBTs, which is key to working with high-frequency ma ...
2020Data-Driven Distributed Reactive Power Sharing in Microgrids
Alireza Karimi, Seyed Sohail Madani
In this paper, reactive power sharing for Photovoltaic (PV) units in islanded microgrids has been formulated as a robust control design problem and is solved using convex optimization method. In addition to reactive power sharing, the disturbance rejection ...
IEEE2020Fully Soft-Switched High Step-Up Nonisolated Three-Port DC-DC Converter Using GaN HEMTs
Marco Mattavelli, Elison de Nazareth Matioli, Georgios Kampitsis, Rasoul Faraji
In this article, a soft-switched nonisolated high step-up multi-input dc-dc converter is proposed. The proposed converter has overcome the hard switching problem of the conventional boost three port converter (boost-TPC) by providing zero-voltage-switching ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2020Decentralized and Distributed Transient Control for Microgrids
Alireza Karimi, Christoph Manuel Kammer
This paper presents a comprehensive approach toward the design of primary and secondary controllers in low-inertia power grids with mixed lines and a large amount of inverter-interfaced generation. First, a complete dynamic phasor model is developed that r ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2019