Supervisory discrete-time LQG control of multi-machine power system with communication time-delays

2010 ◽  
Author(s):  
Xuejiao Yang ◽  
J.V. Milanovic ◽  
O. Marjanovic
Keyword(s):  
Power System ◽  
Discrete Time ◽  
Time Delays ◽  
Communication Time ◽  
Lqg Control

scholarly journals Water Cycle Algorithm Optimized Type II Fuzzy Controller for Load Frequency Control of a Multi-Area, Multi-Fuel System with Communication Time Delays

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5387
Author(s):  
Ch. Naga Sai Kalyan ◽  
B. Srikanth Goud ◽  
Ch. Rami Reddy ◽  
Haitham S. Ramadan ◽  
Mohit Bajaj ◽  
...  
Keyword(s):  
Power System ◽  
Time Delays ◽  
Power Flow ◽  
Water Cycle ◽  
Dynamical Behavior ◽  
Test System ◽  
Load Frequency Control ◽  
Type Ii ◽  
Water Cycle Algorithm ◽  
Communication Time

This paper puts forward the implementation of an intelligent type II fuzzy PID (T2-FPID) controller tweaked with a water cycle algorithm (WCA), subjected to an error multiplied with time area over integral (ITAE) objective index for regularizing the variations in frequency and interline power flow of an interconnected power system during load disturbances. The WCA-based T2-FPID is tested on a multi-area (MA) system comprising thermal-hydro-nuclear (THN) (MATHN) plants in each area. The dynamical behavior of the system is analyzed upon penetrating area 1 with a step load perturbation (SLP) of 10%. However, power system practicality constraints, such as generation rate constraints (GRCs) and time delays in communication (CTDs), are examined. Afterward, a territorial control scheme of a superconducting magnetic energy storage system (SMES) and a unified power flow controller (UPFC) is installed to further enhance the system performance. The dominancy of the presented WCA-tuned T2-FPID is revealed by testing it on a widely used dual-area hydro-thermal (DAHT) power system model named test system 1 in this paper. Analysis reveals the efficacy of the presented controller with other approaches reported in the recent literature. Finally, secondary and territorial regulation schemes are subjected to sensitivity analysis to deliberate the robustness.

Synchronization for discrete-time complex networks with probabilistic time delays

2019 ◽  
Vol 525 ◽  
pp. 1088-1101 ◽  
Author(s):  
Ranran Cheng ◽  
Mingshu Peng ◽  
Jinchen Yu ◽  
Haifen Li
Keyword(s):  
Complex Networks ◽  
Discrete Time ◽  
Time Delays
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