Synchrophasor-enabled power grid restoration with DFIG-based wind farms and VSC-HVDC transmission system
Synchrophasor-enabled power grid restoration with DFIG-based wind farms and VSC-HVDC transmission system
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DOI：
10.1049/iet-gtd.2017.1099
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发表时间：
2017-10
影响因子：
2.5
通讯作者：
Pooyan Moradi Farsani;Sai Gopal Vennelaganti;N. Chaudhuri
中科院分区：
文献类型：
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作者：
Pooyan Moradi Farsani;Sai Gopal Vennelaganti;N. Chaudhuri
提出了一种基于双馈感应发电机的风电场系统恢复策略。该策略涉及在停电之后保持DC总线中的电荷以及在直接通量控制模式和常规电网连接模式之间的“热交换”，这不需要重置任何控制器动态状态并且避免了对能量存储的需要。还提出了一种由远程同步相量实现的自主同步机制。一个停电的系统，其中包括一个风电场和一个电压源换流器（VSC）-HVDC连接到一个不受停电影响的网络，被用作研究系统。输电线充电和负载拾取使用处于通量控制模式的风电场来执行，而VSC-HVDC系统对系统的另一部分进行相同的过程。所提出的“热插拔”和自主同步方法被应用于连接电网的两个部分，并将风电场切换到并网运行模式。结果表明，在一个混合的协同仿真平台，上述系统是在EMT型软件建模和网络的其余部分表示在相量框架。
An innovative system restoration strategy using doubly-fed induction generator-based wind farms is proposed. The strategy involves retention of charge in the DC bus following a blackout and `Hot-Swapping' between direct flux control mode and conventional grid-connected mode, which does not require resetting of any controller dynamic states and avoids the need for energy storage. An autonomous synchronisation mechanism enabled by remote synchrophasors is also proposed. A blacked-out system, which includes a wind farm and a voltage source converter (VSC)-HVDC connected to a network unaffected by blackout, is used as the study system. Transmission line charging and load pickup is performed using the wind farm in flux control mode while the VSC-HVDC system conducts the same process for another portion of the system. The proposed `Hot-Swapping' and autonomous synchronisation approach is applied to connect the two parts of the grid and switch the wind farm to grid connected mode of operation. The results are demonstrated in a hybrid co-simulation platform where the aforementioned system is modelled in EMT-type software and the rest of the network is represented in a phasor framework.