Optimal CC-2DOF(PI)-PDF controller for LFC of restructured multi-area power system with IES-based modified HVDC tie-line and electric vehicles
Optimal CC-2DOF(PI)-PDF controller for LFC of restructured multi-area power system with IES-based modified HVDC tie-line and electric vehicles
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基于IES的改进HVDC联络线和电动汽车重构多区域电力系统LFC的最优CC-2DOF(PI)-PDF控制器
DOI：
10.1016/j.jestch.2021.09.004
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
R. Shankar
中科院分区：
文献类型：
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作者：
M. Sariki;R. Shankar
本文介绍了一种最优级联两自由度比例积分（2DOF（PI））和带滤波器的比例微分（PDF）控制器，即，CC-2DOF（PI）-PDF用于负载频率控制（LFC）机构。所设计的控制器增加了系统的自由度，以较少的动态特性更快地抑制干扰。此外，基于反对排球超级联赛算法（OVPLA）的应用进行了探索，以优化所设计的控制器的参数。提出的LFC机制进行了研究的两个区域的热-水-气重组电力系统。每个区域中的热力系统都配备了发电率约束（GRC），以进行更真实的分析。针对阶跃和随机负载扰动，分别在几种经典控制器和算法上验证了建议的OVPLA优化的2DOF（PI）-PDF控制器的性能。此外，直流联络线的精确建模和惯性仿真策略（IES）进行了讨论，并验证了电力系统的惯性增强。本文还重点介绍了电动汽车（EV）和分布式发电（DG）的辅助服务，以解决电力系统中的任何合同违规问题。最后，以一个三区域电力系统为例，验证了所提出的LFC机制的有效性。最后，几个案例研究和比较性能分析与已发表的文献证明调查LFC在处理任何负载扰动的有效性和效率。
This article is introducing an optimal cascaded two-degree of freedom proportional-integral (2DOF(PI)) and proportional-derivative with filter (PDF) controller, i.e., CC-2DOF (PI)-PDF for load frequency control (LFC) mechanism. The designed controller increases the degree of freedom and rejects disturbances faster with fewer dynamics. Further, the application of an opposition-based volleyball premier league algorithm (OVPLA) has been explored to optimize the designed controller's parameters. The proposed LFC mechanism has been studied on a two-area thermal-hydro-gas restructured power system. The thermal system present in each area is equipped with generation rate constraints (GRC) for more realistic analysis. The performance of the suggested OVPLA optimized 2DOF(PI)-PDF controller has been verified over several classical controllers and algorithms separately for step and random load disturbances. Moreover, accurate modeling of the HVDC tie-line and inertia emulation strategy (IES) is discussed, and the power system’s inertia enhancement is verified. This article also highlights the ancillary services of electric vehicles (EVs) and distributed generations (DGs) to tackle any contract violation in the power system. Next, the proposed LFC mechanism's efficacy has been validated on extending a three-area power system. Finally, several case studies and comparative performance analysis with published literature demonstrate the effectiveness and efficiency of investigated LFC in handling any load disturbances.