Coordinated control strategy for simultaneous frequency and voltage stabilization of multi-area interconnected system considering communication time delays

2021 ◽  
pp. 1-19
Author(s):  
Ch. Naga sai kalyan ◽  
Gudapati Sambasiva Rao
Keyword(s):  
Control Strategy ◽  
Time Delays ◽  
Coordinated Control ◽  
Interconnected System ◽  
Voltage Stabilization ◽  
Communication Time

scholarly journals Impact of communication time delays on combined LFC and AVR of a multi-area hybrid system with IPFC-RFBs coordinated control strategy

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
C H. Naga Sai Kalyan ◽  
G. Sambasiva Rao
Keyword(s):  
Time Delays ◽  
Power Flow ◽  
Frequency Control ◽  
Dynamic Performance ◽  
Coordinated Control ◽  
Voltage Regulation ◽  
Load Frequency Control ◽  
Superior Performance ◽  
Communication Time ◽  
The Impact

AbstractIn this paper, the impact of communication time delays (CTDs) on combined load frequency control (LFC) and automatic voltage regulation (AVR) of a multi-area system with hybrid generation units is addressed. Investigation reveals that CTDs have significant effect on system performance. A classical PID controller is employed as a secondary regulator and its parametric gains are optimized with a differential evolution - artificial electric field algorithm (DE-AEFA). The superior performance of the presented algorithm is established by comparing with various optimization algorithms reported in the literature. The investigation is further extended to integration of redox flow batteries (RFBs) and interline power flow controller (IPFC) with tie-lines. Analysis reveals that IPFC and RFBs coordinated control enhances system dynamic performance. Finally, the robustness of the proposed control methodology is validated by sensitivity analysis during wide variations of system parameters and load.

scholarly journals Active Power Management of Virtual Power Plant under Penetration of Central Receiver Solar Thermal-Wind Using Butterfly Optimization Technique

2020 ◽  
Vol 12 (17) ◽  
pp. 6979 ◽  
Author(s):  
Partha Pratim Dey ◽  
Dulal Chandra Das ◽  
Abdul Latif ◽  
S. M. Suhail Hussain ◽  
Taha Selim Ustun
Keyword(s):  
Power Plant ◽  
Power Management ◽  
Control Strategy ◽  
Coordinated Control ◽  
Communication Delay ◽  
Solar Thermal ◽  
Virtual Power ◽  
Virtual Power Plant ◽  
Central Receiver ◽  
Communication Time

Striving for the suppression of greenhouse emissions, the modern power network is facing fundamental changes with the utilization of renewable energies (REs) for the future carbon-free society. The utilization of intermittent renewable-green power needs a better power management system and virtual power plant (VPP) can be a vital candidate that meets this demand. This study investigates a coordinated control grid integrated virtual power plant (VPP) in the presence of Central Receiver Solar Thermal System (CRSTS), Wind Turbine Generator (WTG), and Electric Vehicle (EV). To this end, CRSTS employed with thermal storage acts as a dispatchable renewable generating unit and coordinated control of the system units are achieved using the available control strategy on interconnected microgrids in the modified form, employing communication time delay. The proposed control strategy employs the proportional-integral (PI) and PI-derivative (PID) controller. Coordinated power control with real-time communication delay in grid integrated VPP in presence of CRSTS, WTG, and EV is a novel approach. Genetic algorithm (GA), Particle Swarm Optimization (PSO), Slap Swarm Algorithm (SSA), and recent Butterfly Optimization Algorithm (BOA) are used for tuning the necessary control parameters. The results establish the superiority of the BOA over SSA and PSO in suppressing system frequency deviations and tie line power deviation. The analysis of the dynamic response reveals that the consideration of the communication delay in the system expressively impedes the stable operation of the power system.

scholarly journals Coordinated Control of RSC and GSC for DFIG System under Harmonically Distorted Grid Considering Inter-Harmonics

Energies ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 28 ◽  
Author(s):  
Bo Pang ◽  
Hui Dai ◽  
Feng Li ◽  
Heng Nian
Keyword(s):  
Theoretical Analysis ◽  
Control Strategy ◽  
Coordinated Control ◽  
Delay Compensation ◽  
Pass Filter ◽  
Grid Connection ◽  
Distorted Grid ◽  
Negative Impacts ◽  
Doubly Fed ◽  
Grid Side

For improving the performance of a doubly fed induction generator (DFIG) system under a harmonically distorted grid, this paper proposes a coordinated control strategy which is effective for grid inter-harmonics as well as grid integer harmonics. In order to suppress the negative impacts caused by grid harmonics, including inter-harmonics, this paper introduces an additional harmonics suppression controller, which contains a Chebyshev high-pass filter and a modified lead element considering the delay compensation. The proposed controller is employed in the rotor side converter (RSC) and grid side converter (GSC). Based on the proposed harmonics suppression controller, a coordinated control strategy between RSC and GSC is developed, in which the control targets, including the sinusoidal output current, constant power, or steady generator torque, can be achieved for DFIG, while GSC is responsible for maintaining the sinusoidal total current to guarantee the power quality of the grid connection. The effectiveness of the proposed method is verified by the theoretical analysis, and the experimental results derived using a 1 kW DFIG system validate the correctness of the theoretical analysis.

scholarly journals Improved Coordinated Control Strategy for Hybrid STATCOM Using Required Reactive Power Estimation Method

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 84506-84515
Author(s):  
Sungyoon Song ◽  
Sungchul Hwang ◽  
Gilsoo Jang ◽  
Minhan Yoon
Keyword(s):  
Control Strategy ◽  
Reactive Power ◽  
Estimation Method ◽  
Coordinated Control ◽  
Power Estimation
Sign in / Sign up

Export Citation Format

Share Document