LOAD FREQUENCY CONTROL OF MULTI AREA SYSTEM INCORPORATING DISTRIBUTED GENERATION RESOURCES USING CLOSED LOOP CASCADE OF 3DOFPID-FPID-TID CONTROLLER

Sunita Pahadasingh PhD Research Scholar, School of Electrical Engineering, KIIT Deemed to be University, Bhubaneswar, Odisha, 751024, India, spahadasingh@gmail.com
Chitralekha Jena Assistant Professor, School of Electrical Engineering, KIIT Deemed to be University, Bhubaneswar, 751024, India, Odisha, chitralekha.jenafel@kiit.ac.in
Chinmoy Kumar Panigrahi Professor, School of Electrical Engineering, KIIT Deemed to be University, Bhubaneswar, 751024, India, Odisha, panigrahichinmoy@gmail.com
Bibhu Prasad Ganthia Assistant Professor, Electrical Engineering, IGIT, Sarang, Dhenkanal, Odisha, India, 759146, jb.bibhu@gmail.com

Abstract

This study emphasis on load frequency control (LFC) to retains the deviations of system frequency and tie line power at their preferred values by maintaining the steadiness between power generation and demand. It defines the importance of integrating distributed generation (DG) resources with existing power system in terms of system dynamic performance. A maiden attempt has been taken to apprehend and deliver CC-3DOFPID-FPID-TID controller with DG resources for frequency and power stabilisation of an interconnected power systems. Cascaded two loop controllers are used here as a substitute to relieve the closed loop system by means of secondary feedback planning. The suggested controller incorporates both the value of cascade (CC) and fractional order (FO) controls for restored eradication of system insecurities. In this recommended cascade –three degree of freedom proportional integral derivative-fuzzy proportional integral derivative –tilted integral derivative (CC-3DOFPID-FPID-TID) controller, slave controller action is performed by tilted integral derivative (TID) and foremost action is governed by three degree of freedom proportional integral derivative-fuzzy proportional integral derivative (3DOFPID-FPID) controller. The controlled parameters are optimized by adaptive symbiotic organism search (ASOS) algorithm for intense outcomes of difficulties in LFC. To persist in ecosystem, adaptive symbiotic relations are expectable by organism through ASOS imitators. Further the dynamic behaviours of proposed controller optimized by ASOS, symbiotic organism search (SOS) and ant lion optimization (ALO) are compared by extensive simulations. Moreover the sovereignty of suggested controller is executed through system dynamics comparison among 3DOFPID, TID, CC-3DOFPID-TID, CC-FPID-TID and CC-3DOFPID-FPID-TID controllers. Sensitivity of proposed controller has proven though random load perturbation and variation in system parameters.

Keywords:

Load frequency control (LFC), Proportional integral derivative (PID), Adaptive symbiotic organism search (ASOS), Area control error (ACE), Integral time absolute error (ITAE), Step load perturbation (SLP).


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References



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