Grid forming converters in renewable energy sources dominated power grid: Control strategy, stability, application, and challenges
The renewable energy sources (RESs) dominated power grid is an envisaged infrastructure
of the future power system, where the commonly used grid following (GFL) control for grid …
of the future power system, where the commonly used grid following (GFL) control for grid …
DC fault protection algorithms of MMC-HVDC grids: Fault analysis, methodologies, experimental validations, and future trends
To protect the converters and minimize the power transmission interruption during dc line
faults, it is necessary to detect the faults at ultra high speed for the modular multilevel …
faults, it is necessary to detect the faults at ultra high speed for the modular multilevel …
基于半桥型MMC 的柔性直流电网故障限流方法综述
陈磊， 何慧雯， 王磊， 李国城， 陈红坤 - 电力系统保护与控制, 2021 - epjournal.csee.org.cn
现阶段投运的柔性直流电网通常采用半桥型模块化多电平变换器(Modular Multilevel Converter,
MMC), 具有惯量低, 阻尼小等基本特征, 存在故障演变迅速, 设备过流能力弱 …
MMC), 具有惯量低, 阻尼小等基本特征, 存在故障演变迅速, 设备过流能力弱 …
[PDF][PDF] MMC 换流站阀侧交流接地故障电流解析
单节杉， 任敏， 田鑫萃， 束洪春， 李涛 - 电力系统保护与控制, 2022 - epjournal.csee.org.cn
对模块化多电平换流器(modular multilevel converter, MMC) 换流站阀侧交流接地故障特性进行
研究发现: 阀侧交流系统发生金属性接地故障时, 故障点入地电流由下桥臂电容放电电流和上桥 …
研究发现: 阀侧交流系统发生金属性接地故障时, 故障点入地电流由下桥臂电容放电电流和上桥 …
Impact of strength and proximity of receiving AC systems on cascaded LCC-MMC hybrid HVDC system
The cascaded hybrid LCC-MMC inverter is considered as a feasible option to mitigate the
commutation failure problem of conventional LCC-HVDC while maintaining bulk power …
commutation failure problem of conventional LCC-HVDC while maintaining bulk power …
Coordination control of power flow controller and hybrid DC circuit breaker in MVDC distribution networks
The two main challenges of medium voltage direct current (MVDC) distribution network are
the flexible control of power flow (PF) and fault protection. In this paper, the power flow …
the flexible control of power flow (PF) and fault protection. In this paper, the power flow …
[HTML][HTML] A novel current-limiting method for MMC-HVDC by coordinating virtual impedance control and fault current limiter
The modular multilevel converter (MMC) topology is very suitable for high voltage direct
current (HVDC) system to achieve feasible power control, favorable black start capability as …
current (HVDC) system to achieve feasible power control, favorable black start capability as …
Joint Limiting Control Strategy Based on Virtual Impedance Shaping for Suppressing DC Fault Current and Arm Current in MMC-HVDC Systems
This paper proposes a joint limiting control strategy for suppressing DC fault current and arm
current in modular multilevel converter-based high-voltage direct current (MMC-HVDC) …
current in modular multilevel converter-based high-voltage direct current (MMC-HVDC) …
A global fault current limiting strategy for the MMC-HVDC grid with a reduced DC reactor
Z Gong, S Zhao, X Wu, C Zheng, J Zhou - International Journal of Electrical …, 2022 - Elsevier
The large current limiting reactor (CLR) and DC circuit breaker (DCCB) are required in the
half-bridge modular multilevel converter (HB-MMC) project to isolate the DC fault. To limit …
half-bridge modular multilevel converter (HB-MMC) project to isolate the DC fault. To limit …
A fault current limiter self-adapting activation strategy for flexible HVDC system based on fault severity assessment
N Wei, N Zhou, J Liao, Q Wang - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In the flexible HVdc system, fault current limiters (FCLs) need to be configured to reduce the
rising rate of fault current. However, the FCL configured according to the bipolar near-end …
rising rate of fault current. However, the FCL configured according to the bipolar near-end …