Results 51 to 60 of about 676 (185)
Modeling and Control of Multi-Terminal VSC HVDC Systems
AbstractThis paper discusses the modeling and control of Voltage Source Converter High Voltage Direct Current (VSC HVDC) systems in a multi-terminal configuration (MTDC). Both steady-state interactions, as well as transient stability modeling and control are addressed.
Beerten, Jef, Belmans, Ronnie
openaire +2 more sources
Research on Voltage Regulation Methods for Flexible On‐Load Tap‐Changing Transformers
The control system determines whether the output voltage magnitude of the voltage source converter (VSC) is high, low or constant and generates the corresponding pulse signals. Each pulse is generated at the valve‐triggering instant, with its width corresponding to the commutation angle.
Weimei Zhao, Qiao Guangyao
wiley +1 more source
A review of LCC-HVDC and VSC-HVDC technologies and applications
High Voltage Direct Current (HVDC) systems has been an alternative method of transmitting electric power from one location to another with some inherent advantages over AC transmission systems. The efficiency and rated power carrying capacity of direct current transmission lines highly depends on the converter used in transforming the current from one ...
Oni, Oluwafemi Emmanuel +2 more
openaire +4 more sources
ABSTRACT To solve the complex scenarios, such as multimodal noise, bad measurement data and sudden load changes, in the power system, the enhanced generalised cross correlation entropy unscented Kalman filter (EnGCCE‐UKF) method is proposed in this paper.
Liangzheng Wu +3 more
wiley +1 more source
ABSTRACT When multiple grid‐forming and grid‐following converters operate within an offshore energy system (OES), dynamic interactions among them can lead to poorly damped oscillations and potential instability. This paper proposes a computationally efficient reduced‐order state‐space modelling framework for small‐signal stability and parametric ...
Nakul Narayanan K +3 more
wiley +1 more source
A NOVEL CONTROL STRATEGY FOR VSC BASED HVDC IN MULTI-MACHINE POWER SYSTEMS
The forced commutated voltage source converter (VSC) is becoming an interesting alternative for HVDC transmission, in this paper, the model of VSC based HVDC is established, and the model is applied to multi-machine power system including VSC based HVDC,
Hu Zhaoqing, Mao Chengxiong, Lu Jiming
doaj +2 more sources
Multi‐Layer MTDC Protection: Design and Simulation Assessment
This study proposes a novel multi‐layer protection architecture for multi‐terminal DC systems that separates fault current‐limiting and interruption functions. By combining a thyristor‐based fault current limiter with an active resonance circuit breaker, the scheme significantly reduces peak fault currents and di/dt stress, enabling a more compact ...
Jong‐Geon Lee +3 more
wiley +1 more source
Stability and Synchronization of MMC‐HVDC Systems Using SRF and Inertia‐Based PLLs
This study investigates the influence of synchronous reference frame PLL (SRF‐PLL) and the inertia PLL (IPLL) on the stability of grid‐connected modular multilevel converter high voltage direct current (MMC‐HVDC) systems. The findings highlight intrinsic stability limitations of PLL‐based systems, offering insights toward more stable, PLL‐less ...
Shuai Wang, Robin Preece, Mike Barnes
wiley +1 more source
Voltage Stability Control Strategy for Interconnected Systems Through VSC-HVDC
:Due to the independent control of active and reactive power,voltage source converter (VSC) base on HVDC system can not only distribute power in DC system,but also improve the stability of AC system connected by VSC-HVDC.In order to fully excavate the ...
曾琦, 李兴源, 张立奎, 邓旗
doaj
A kind of connection scheme of three-terminal back-to-back (BTB) voltage source converter based HVDC(VSC-HVDC) system in 10 kV distribution network was discussed, which can improve the reliability of power supply and restrain the circulation by the ...
Dan ZOU +6 more
doaj +1 more source

