Micev Mihailo, Ćalasan Martin, Radulović Milovan
Faculty of Electrical Engineering, Dzordza Vasingtona bb, Podgorica, 81000, Montenegro.
Heliyon. 2023 Jul 28;9(8):e18707. doi: 10.1016/j.heliyon.2023.e18707. eCollection 2023 Aug.
This paper deals with the optimal tuning of the controller for the real automatic voltage regulation (AVR) system of the synchronous generator (SG). For this purpose, firstly, a novel proportional-integral controller with two degrees of freedom and anti-windup protection for application in the AVR system is proposed. Secondly, in order to determine the optimal parameters of such a controller, the objective function which takes into account transient response characteristics, disturbance, and measurement noise rejection capabilities of the AVR system is presented. Furthermore, the adaptive modification of the existing metaheuristic African vultures optimization algorithm (AVOA) is introduced for controller parameters design. Finally, unlike the many existing papers in the available literature which use a simplified model of the AVR system, in this work the simulation model of the AVR system is realized by observing the technical documentation of the excitation system of the 40 MVA SG from a hydropower plant Perucica in Montenegro. The results obtained in this work have proven that the proposed AVR controller has superior performances compared with other frequently used controllers in real power plants, in terms of providing transient response quality of the SG terminal voltage, disturbance rejection, and measurement noise mitigation abilities. Additionally, increased convergence speed and improved criterion function value demonstrated that the proposed adaptive modification of the AVOA algorithm outperforms some of the most popular metaheuristic algorithms. © 2017 Elsevier Inc. All rights reserved.
本文研究同步发电机（SG）实际自动电压调节（AVR）系统控制器的最优整定。为此，首先提出了一种适用于AVR系统的具有两个自由度和抗积分饱和保护的新型比例积分控制器。其次，为了确定该控制器的最优参数，提出了一种考虑AVR系统暂态响应特性、抗干扰能力和测量噪声抑制能力的目标函数。此外，引入了对现有元启发式非洲秃鹫优化算法（AVOA）的自适应改进，用于控制器参数设计。最后，与现有文献中许多使用AVR系统简化模型的论文不同，在这项工作中，通过观察黑山佩鲁西察水电站40 MVA同步发电机励磁系统的技术文档，实现了AVR系统的仿真模型。这项工作所获得的结果证明，与实际发电厂中其他常用控制器相比，所提出的AVR控制器在提供同步发电机端电压的暂态响应质量、抗干扰能力和测量噪声抑制能力方面具有卓越的性能。此外，收敛速度的提高和准则函数值的改善表明，所提出的AVOA算法的自适应改进优于一些最流行的元启发式算法。© 2017爱思唯尔公司。保留所有权利。
