Stability Enhancement of a Power System With a PMSG-Based and a DFIG-Based Offshore Wind Farm Using a SVC With an Adaptive-Network-Based Fuzzy Inference System
Stability Enhancement of a Power System With a PMSG-Based and a DFIG-Based Offshore Wind Farm Using a SVC With an Adaptive-Network-Based Fuzzy Inference System
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DOI：
10.1109/tie.2012.2218557
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发表时间：
2013-07
影响因子：
7.7
通讯作者：
Li Wang;D. Truong
中科院分区：
文献类型：
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作者：
Li Wang;D. Truong
提出了一种基于同步发电机(SG)的单机无穷大系统的稳定性改善结果，该系统采用基于永磁同步发电机(PMSG)的海上风电场(OWF)和基于双馈感应发电机(DFIG)的基于静止无功补偿器(SVC)的OWF。分别用等效风力机驱动的等值聚合型永磁同步发电机和等效风力机通过等效变速箱驱动的等值聚合型DFIG对两种单频发电机的运行特性进行了仿真。利用基于自适应网络的模糊推理系统(ANFIS)设计了SVC的阻尼控制器，以使所研究的SG在不同运行条件下的主要模式具有足够的阻尼特性。利用基于根轨迹技术的线性化系统模型的频域方法和基于受各种扰动的非线性系统模型的时间域方法来检验所提出的控制方案的有效性。仿真结果表明，所提出的SVC与ANFIS阻尼器相结合能够提高所研究的SG系统在不同扰动下的稳定性。
This paper presents the stability-improvement results of a synchronous generator (SG)-based one-machine infinite-bus system with a permanent-magnet SG (PMSG)-based offshore wind farm (OWF) and a doubly fed induction generator (DFIG)-based OWF using a static VAR compensator (SVC). The operating characteristics of the studied two OWFs are simulated by an equivalent aggregated PMSG driven by an equivalent wind turbine (WT) and an equivalent aggregated DFIG driven by an equivalent WT through an equivalent gearbox, respectively. A damping controller of the SVC is designed by using adaptive-network-based fuzzy inference system (ANFIS) to contribute adequate damping characteristics to the dominant modes of the studied SG under various operating conditions. A frequency-domain approach based on a linearized system model using root-loci technique and a time-domain scheme based on a nonlinear system model subject to various disturbances are both utilized to examine the effectiveness of the proposed control scheme. It can be concluded from the simulation results that the proposed SVC joined with the ANFIS damping controller is capable of improving the stability of the studied SG system subject to different disturbances.