Influence of Primary Regulation on Frequency Control of an Isolated Microgrid Equipped with Crow Search Algorithm Tuned
- PDF / 1,190,750 Bytes
- 15 Pages / 595.276 x 790.866 pts Page_size
- 38 Downloads / 189 Views
ORIGINAL ARTICLE
Influence of Primary Regulation on Frequency Control of an Isolated Microgrid Equipped with Crow Search Algorithm Tuned Classical Controllers Muzeeb Khan Patan1 · K. Raja1 · Mohammed Azaharahmed1 · Ch. Durga Prasad2 · P. Ganeshan3 Received: 12 May 2020 / Revised: 10 September 2020 / Accepted: 16 November 2020 © The Korean Institute of Electrical Engineers 2020
Abstract Along with the power demand variations, change in wind speed and irradiance leads to large frequency oscillations especially in case of isolated microgrid integrated with PV and wind power generating units. To minimize such frequency changes, proportional plus integral (PI) and proportional, integral, and derivative (PID) controllers are set up for controllable generating units of isolated microgrid. However, this paper introduced primary regulation concept for diesel generator (DG) along with PI/PID controller mechanism which enhances overall system stability and minimize the frequency oscillations during the initial stages of load/power changes. Also, the choice of PI and PID controllers is introduced in this paper when the DG’s in microgrid equipped with primary regulation loop along secondary control and only secondary control without primary loop as extension of frequency control. The investigations are carried out in regular load change and generation change patterns along with irregular stochastic models. Crow search optimization algorithm (CSOA) provide fine controller parameters in both cases and results carried out in MATLAB-SIMULINK environment Keywords Microgrid · Frequency control · Crow search optimization algorithm · PID
1 Introduction The key advantages in economic and environment perspectives, research on isolated microgrids are highlighted in the recent years. Due to emergence dependability of the renewable units integration into the existing system leads considerable imbalance in supply and demand of electrical energy. This renewable energy integration into the microgrid and its random time varying output power makes frequency control as difficult especially when the microgrid operates in the isolated condition rather than grid connected mode [1–4]. Several mechanisms were proposed for frequency control of an isolated microgrid in islanding condition available in * Muzeeb Khan Patan [email protected] 1
Anna University College of Engineering Dindigul, Dindigul 624622, Tamil Nadu, India
2
Department of Electrical Engineering, NIT-Raipur, Raipur 492010, India
3
Sethu Institute of Technology, Virudhunagar 626115, Tamil Nadu, India
literature. In line with load frequency control problem, frequency control of isolated microgrid understand by selection of controller, choice of intelligent method for fine tuning of controller and additional components attached with microgrid to sustain frequency changes in the allowable limits [2]. Basic PI controller commonly used in isolated microgrid to maintain the frequency within limits. Such conventional PI controller used in AC microgrid and the advanced
Data Loading...
