Design of a dual-layered tilt fuzzy control structure for interconnected power system integrated with DFIG,International Transactions on Electrical Energy Systems

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Design of a dual-layered tilt fuzzy control structure for interconnected power system integrated with DFIG
International Transactions on Electrical Energy Systems ( IF 1.9 ) Pub Date : 2021-07-12 , DOI: 10.1002/2050-7038.13015
Akhilesh Kumar Mishra ₁ , Puneet Mishra , H.D. Mathur

Affiliation

The doubly fed induction generators based wind power plant is extensively used as a renewable energy source; however, their integration with interconnected power systems may cause equal challenges as well. Since such WPPs are decoupled from the grid frequency to operate at maximum power point tracking, hence they cannot participate in effective load frequency control and cause severe deterioration in the frequency regulation of the nonlinear IPS. To address these issues, this article proposes a novel dual-layered tilt fuzzy control structure (DLTFCS), which comprises of a fuzzy tilt integral derivative with a filter as the first layer working in coherence with a fractional order proportional derivative controller as the second layer, together with an inertial frequency support scheme for WPP. The DLTFCS is developed with an intention of efficient handling of nonlinearity and parametric uncertainty of considered IPS in the presence of WPP. Further, a curated hybrid objective function is also proposed, which consists of a weighted combination of integral of time-weighted absolute error and oscillatory measure with the help of an analytical hierarchy process and is optimized by a recently devised salp swarm algorithm. The control performance of the proposed controller has been validated by extensive simulation studies under various scenarios ranging from system parametric variations, uncertainties in generation rate constraint, and governor deadband to significant variations in wind penetration levels. Extensive comparative studies suggested that the proposed control structure provides superior performance over fractional order proportional integral derivative (FOPID) and Fuzzy FOPID controller.

中文翻译：

集成双馈电机的互联电力系统双层倾斜模糊控制结构设计

基于双馈感应发电机的风力发电厂被广泛用作可再生能源；然而，它们与互连电力系统的集成也可能带来同样的挑战。由于此类WPP与电网频率解耦以在最大功率点跟踪下运行，因此它们无法参与有效的负载频率控制并导致非线性IPS的频率调节严重恶化。为了解决这些问题，本文提出了一种新颖的双层倾斜模糊控制结构（DLTFCS），它包括模糊倾斜积分导数和滤波器作为第一层，分数阶比例导数控制器作为第二层工作。，以及 WPP 的惯性频率支持方案。开发 DLTFCS 的目的是在 WPP 存在的情况下有效处理所考虑的 IPS 的非线性和参数不确定性。此外，还提出了一个策划的混合目标函数，它由时间加权绝对误差和振荡度量的加权组合组成，借助层次分析过程，并通过最近设计的 salp 群算法进行优化。所提出的控制器的控制性能已经通过在从系统参数变化、发电率约束的不确定性和调速器死区到风力渗透水平的显着变化等各种情况下的广泛模拟研究得到验证。

更新日期：2021-09-16

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