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Power frequency overvoltages generated by solar plants

IET Conference Publications, 2009
A new kind of overvoltage, not covered by present standards, has been detected in solar plants when switching the inverters off. This power frequency overvoltage can be transmitted to the MV network, giving rise to damages to some pieces of low voltage electronic equipment.
openaire   +1 more source

Research on Control Measures for Steady-State Power Frequency Overvoltage of Half-Wavelength Transmission Lines

2019 4th IEEE Workshop on the Electronic Grid (eGRID), 2019
The half-wavelength transmission line (HWTL) is a forward-looking and competitive solution for transcontinental and transnational power transmission. The problem of steady-state power frequency overvoltage of HWTL is serious. It is a matter of great concern in the safety and stability analysis of the power system connected with the HWTL. In this paper,
Jun Yi   +7 more
openaire   +1 more source

An Improved Power Transformer High Frequency Model for Transient Overvoltage Studies

IEEE PES Asia-Pacific Power and Energy Engineering Conference
In modern substations, some impinging transient surges may coincide with a power transformer's natural frequencies. This can cause considerable voltage building-up inside the transformer windings and impose significant stresses to the transformer ...
Shijie Yao, Hui Ma, C. Ekanayake
semanticscholar   +1 more source

Transient Power Frequency Overvoltages Transferred to Low Voltage Networks from the EPR of HV and MV Transformer Stations

2007 7th International Symposium on Electromagnetic Compatibility and Electromagnetic Ecology, 2007
The transient power frequency overvoltages appearing in the low voltage (LV) supply networks are causing increasing number of damages both in electrical equipment (household, office etc.) containing electronic control parts and in telecommunications apparatus especially in their line cards.
Ladányi, József, Varjú, György
openaire   +1 more source

Mitigation of Machine Neutral Point Overvoltage in SiC Motor Drives by Controlling Antiresonance Frequency and Switching Frequency

IEEE Journal of Emerging and Selected Topics in Power Electronics
Inverter-fed motors are vulnerable to premature insulation failure due to overvoltage stress across stator windings because of antiresonance phenomenon, which is characterized by two oscillatory overvoltage responses that manifest at the motor terminals ...
Mustafa Memon, M. Diab, Xibo Yuan
semanticscholar   +1 more source

Study on Load Rejection Overvoltage of DFIG-Based Wind Power Transmission System

2025 10th Asia Conference on Power and Electrical Engineering (ACPEE)
Wind turbines are normally connected to the power grid through long transmission lines. When load rejection occurs on the grid side, it may cause overvoltage at the end of the line, which may threaten the power equipment.
Haozhen Li   +4 more
semanticscholar   +1 more source

Investigation on Power Frequency Following Current for Vacuum Circuit Breaker Interrupting Shunt Reactor in Offshore Wind Farms

IEEE Transactions on Power Delivery
Multiple reignitions would cause the overvoltage while vacuum circuit breaker (VCB) switching off shunt reactor (SR) in offshore wind farm (OWF). However, the voltage escalation may be terminated in advance due to power frequency following current (PFFC).
Zhi Zheng   +7 more
semanticscholar   +1 more source

Research on Overvoltage Suppression Strategy for Medium-Frequency DRU-MMC Transmission System

2025 IEEE 3rd International Conference on Power Science and Technology (ICPST)
To address the high cost of offshore wind power transmission, a promising low-cost transmission technology, namely the medium-frequency uncontrolled rectification technology, has been proposed. Compared with flexible DC transmission technology, it offers
Xingyu Pei   +7 more
semanticscholar   +1 more source

Study on Overvoltage Issues in the Traction Network of Electrified Railways Caused by the Reactive Power: Phenomenon, Analysis, and Solution

IEEE Transactions on Transportation Electrification
This article investigated the causes and solutions for the overvoltage issues in the traction power supply system (TPSS) of the electric multiple units maintenance and preparation depot (EMPD). First, sufficient field measurements in the TPSS of the EMPD
Ke Wang   +9 more
semanticscholar   +1 more source

An Overview of Fault Current Limiter and Power System Overvoltage Problem:Towards the Application of Better Operational Stability

2024 8th International Conference on Power Energy Systems and Applications (ICoPESA)
After the fault current limiter(FCL) is connected to the power grid, it can effectively solve the problem of excessive short-circuit current in the power system.
Jia Chen   +5 more
semanticscholar   +1 more source

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