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Robust Load Frequency Control Using Fractional-order TID-PD Approach Via Salp Swarm Algorithm
IETE Journal of Research ( IF 1.5 ) Pub Date : 2021-04-13 , DOI: 10.1080/03772063.2021.1905084
Mandeep Sharma 1 , Surya Prakash 2 , Sahaj Saxena 2
Affiliation  

To preserve frequency and tie-line power flow within a tolerable range in modern intricate and renewable energy sources (RES) integrated power system, an intelligent, expert, and robust load frequency control (LFC) scheme is requisite. This paper proposes a new load frequency control (LFC) approach using a dual-stage controller composed of fractional-order tilted-integral-derivative (TID) and integer-order proportional-derivative (PD) controllers. The recently developed salp swarm algorithm has tuned the parameters of the controller. The proposed scheme exhibits robustness and fast disturbance rejection performance because the tilted-integral-derivative controller is structured in a fractional-order framework, and transient response is improved due to the proportional-derivative controller. The overall activity of the LFC has been further upgraded by incorporating the flexible AC transmission system (FACTS) device namely thyristor-controlled phase shifter (TCPS) unit and energy storage system called redox flow battery (RFB) units. The proposed control approach is applied to diverse types of multi-area multi-source power systems with thermal, hydro, and wind turbine units along with nonlinear functions namely generation rate constraint (GRC), governor dead band (GDB), and communication delay (CD). The simulation results yield improved frequency regulation activity with and without TCPS and RFB using the proposed control approach when compared with the recently developed LFC approaches. Sensitivity analysis also established the robustness of the proposed control approach.



中文翻译:

通过 Salp 群算法使用分数阶 TID-PD 方法进行鲁棒负载频率控制

为了将现代复杂的可再生能源 (RES) 集成电力系统中的频率和联络线潮流保持在可承受的范围内,需要智能、专业且强大的负载频率控制 (LFC) 方案。本文提出了一种新的负载频率控制(LFC)方法,该方法使用由分数阶倾斜积分微分(TID)和整数阶比例微分(PD)控制器组成的双级控制器。最近开发的樽海鞘群算法调整了控制器的参数。由于倾斜积分微分控制器是在分数阶框架中构建的,因此所提出的方案表现出鲁棒性和快速抗扰性能,并且由于比例微分控制器而改善了瞬态响应。通过采用灵活的交流输电系统(FACTS)装置,即晶闸管控制移相器(TCPS)单元和称为氧化还原液流电池(RFB)单元的储能系统,LFC的整体活动得到了进一步升级。所提出的控制方法适用于各种类型的多区域多源电力系统,包括火力、水力和风力发电机组以及非线性函数,即发电率约束(GRC)、调速器死区(GDB)和通信延迟(光盘)。与最近开发的 LFC 方法相比,使用所提出的控制方法,在有或没有 TCPS 和 RFB 的情况下,仿真结果产生了改进的频率调节活动。敏感性分析还确定了所提出的控制方法的稳健性。

更新日期:2021-04-13
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