• Jagdeep singh
• Amninder Singh

The main objective of automatic generation control (AGC) is to balance the total system generation against system load losses so that the desired frequency and power interchange with neighbouring system is maintained. Any mismatch between generation and demand causes the system frequency to deviate from the nominal value. This high frequency deviation may lead to system breakdown. AGC comprises a load frequency control (LFC) loop and an automatic voltage regulator loop. Interconnected power systems regulate power flows and frequency by means of an AGC. LFC system provides generator load control via frequency zero steady-state errors of frequency deviations and optimal transient behaviour are objectives of the LFC in a multiarea interconnected power system. In this paper, artificial neural network (ANN) and PID based adaptive approach is used to automatic generation control of two unequal area thermal power systems. The proposed ANN-PID controller combines the advantages of PID controller as well as quick response and adaptability nature of ANN. Area 1 and area 2 consist of thermal reheat power plant . Performance evaluation is carried out by using ANN and PID control approaches. To enhance the performance of intelligent controller, adaptive ANN is used which adaptively trains itself on each iteration of running of simulation. The performances of the controllers are simulated using MATLAB/SIMULINK software. Three different case studies are taken in experimentation in which area one is altered with 0, 0 .01 and 0.015 per unit load change whereas area two keeps running at the same load. A comparison of ANN and PID approaches shows the superiority of proposed ANN over PID for change in frequency and tie-line power deviation in two area interconnected power system. Proposed ANN system also have less settling time than the PID based controllers.

ANN & PID Controllers, Area Control Error (ACE), Load Frequency Control (LFC), MATLAB/SIMULINK

"LOAD FREQUENCY CONTROL OF COORDINATED HYDRO AND THERMAL POWER PLANT USING ANN BASED PID CONTROLLERS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.806-813, June 2019, Available :http://www.jetir.org/papers/JETIR1907998.pdf

"LOAD FREQUENCY CONTROL OF COORDINATED HYDRO AND THERMAL POWER PLANT USING ANN BASED PID CONTROLLERS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp806-813, June 2019, Available at : http://www.jetir.org/papers/JETIR1907998.pdf