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A Framework for $$H_{2} /H_\infty$$ H 2 / H ∞ Synthesis in Damping Power Network Oscillations with STATCOM
Iranian Journal of Science and Technology, Transactions of Electrical Engineering ( IF 2.4 ) Pub Date : 2019-10-21 , DOI: 10.1007/s40998-019-00278-4
Ramesh Devarapalli , Biplab Bhattacharyya

The escalating in load demand prioritized the incorporation of additional renewable energy generation plants to the existing grid. In parallel, the necessity of reactive power balance and damping characteristics has advised the incorporation of flexible AC transmission system controllers to the existing power network. Hereby, the modern power system has been driven towards the much more composite system which in turn necessitates a healthy controller technique. The objective of this paper is to contribute recommendations to incorporate robust controller technique in the field of the electrical power system. Detailed design considerations for the $$H\infty$$ controller design of a modern power network have been specified, and the same has been demonstrated with mathematical modelling of power network with static synchronous compensator (STATCOM) connected in the middle of the transmission line and in a multi-machine power system. To comment on the suitability of the controller design, a deep stability analysis has been presented and compared with the traditional power system stabilizer, power system stabilizer optimized using particle swarm optimization with time-varying acceleration coefficients algorithm and whale optimization algorithm under adverse system operating conditions. The proposed controller framework has been presented by considering the case studies of single machine infinite bus system, two-machine system model and the benchmark two-area four-generator multi-machine systems connected with STATCOM. The controller performance analysis has been verified by considering eigenvalues analysis, singular value analysis and dynamic response of system states during perturbations for the first two case studies, and system analysis under faulty condition has been investigated for the multi-machine system.

中文翻译:

$$H_{2} /H_\infty$$ H 2 / H ∞ 综合用STATCOM阻尼电网振荡的框架

不断增长的负载需求优先考虑将额外的可再生能源发电厂并入现有电网。同时,无功功率平衡和阻尼特性的必要性建议将灵活的交流输电系统控制器纳入现有的电力网络。因此,现代电力系统已朝着更加复合的系统发展,这反过来又需要健康的控制器技术。本文的目的是提出建议,将鲁棒控制器技术纳入电力系统领域。已指定现代电力网络的 $$H\infty$$ 控制器设计的详细设计考虑因素,同样,在输电线路中间连接静态同步补偿器 (STATCOM) 的电力网络数学建模和多机电力系统中也证明了这一点。为了评价控制器设计的适用性,提出了深度稳定性分析,并与传统电力系统稳定器、时变加速系数粒子群优化算法和不利系统运行条件下的鲸鱼优化算法进行了比较。 . 通过考虑单机无限总线系统、两机系统模型和与 STATCOM 连接的基准两区四发电机多机系统的案例研究,提出了所提出的控制器框架。
更新日期:2019-10-21
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