Results 181 to 190 of about 2,361 (200)
Some of the next articles are maybe not open access.
Computationally efficient method for simulating Multi-Terminal MMC-HVDC
2015 IEEE Power & Energy Society General Meeting, 2015The performance of a 4-station Multi-Terminal MMC HVDC system (MTDC-MMC-HVDC) is predicted by numerical integration of 57 first order Ordinary Differential Equations (ODEs). Wind power oscillation is also considered in this model. Because larger step-size can be used in the numerical integration of ODEs, to simulate a same size MTDC-MMC-HVDC system ...
null Haihao Jiang +3 more
openaire +1 more source
Impact of Superconducting Resistive-FCL on MMC-HVDC Fault
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia), 2021To meet with the growing demand for energy, Renewable energy transmission is feasible with Modular Multilevel Converter (MMC). Although, the chances of short-circuit fault in High Voltage Direct Current (HVDC) systems is prevalent. This large fault current could endanger the electrical integrity of the system leading to overheating and collapse of the ...
Jude Inwumoh +2 more
openaire +1 more source
Analysis of MMC HVDC System Using Symmetric Coordinate Method
2019 International Aegean Conference on Electrical Machines and Power Electronics (ACEMP) & 2019 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM), 2019This paper deals with the new analysis method of MMC HVDC system, which is based on the classical symmetric coordinate method. As the AC/DC system which is AC system combined with MMC HVDC converter, has the different characteristics from a conventional AC system, in order to analyze the faults of the system, the new analysis technique is needed.
Chan-Ki Kim +3 more
openaire +1 more source
Lifetime estimation of IGBT modules for MMC-HVDC application
Microelectronics Reliability, 2018Abstract Modular multilevel converters (MMCs) usually work in harsh operating environments due to their compact layouts and adverse mission profiles, which accelerate the thermomechanical fatigue process in insulated-gate bipolar transistor modules (IGBTs).
Longjun Wang +3 more
openaire +1 more source
Grey-Fuzzy PI Optimal Control of MMC-HVDC System
2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2), 2020Modular multilevel converter (MMC) has been widely used in high voltage direct current (HVDC) systems. MMC-HVDC is also considered as the most promising DC transmission mode. Because the traditional PI controller does not have the ability of adaptive control and easy to produce overshoot.
Li Hou, Xiaolei Li, Mingdong Wang
openaire +1 more source
Control of MMC-HVDC in low-inertia weak grids
2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS), 2017With the inherent benefits of high-voltage direct current (HVDC) transmission systems like long-distance high-power transmission with lesser losses and costs, easy integration of renewables, and others, increased presence of DC-AC grids is expected. One of the consequences of increased presence of power electronics is the reduced inertia in the grid ...
Suman Debnath, Madhu Chinthavali
openaire +1 more source
Pole-to-Ground Fault Analysis for MMC-HVDC Grid
2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia), 2019Pole-to-ground (PTG) fault analysis is of vital importance for HVDC grid. However, many factors are not considered in the existing studies, such as the asymmetrical property of PTG fault, the coupling issue between dc transmission lines and the complexity of dc grid's structure. This paper presents a PTG fault analysis method, which is based on common-
Zhen He, Jiabing Hu, Lei Lin, Zhiyuan He
openaire +1 more source
Dynamic Phasor Modeling of MMC-HVDC Systems
2022 IEEE 5th International Conference on Information Systems and Computer Aided Education (ICISCAE), 2022Hui Fang +5 more
openaire +1 more source
Resonant DC circuit breaker in MMC-HVDC transmission system
2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS), 2017Recently, high-voltage direct current transmission system (HVDC) which can achieve large-scale system has attracted attention with increasing amount of renewable energy. In addition, it is necessary to use large capacity converter for bulk power transmission. Therefore, modular multi-level converter (MMC) is optimum as a large capacity converter.
Ryota Kinjo +4 more
openaire +1 more source
A design method of MMC-HVDC physical simulation system
2017 IEEE Conference on Energy Internet and Energy System Integration (EI2), 2017For the growing power rating and voltage level, modular multilevel converter (MMC) is a feasible solution in the application of voltage sourced converter based high voltage direct current(VSC-HVDC) transmission. However, due to its numerous independently controlled sub-modules(SMs), it is very difficult to represent the complete internal transient ...
Liu Dong, Gao Lu, Kou Longze
openaire +1 more source