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

Partha Pratim Dey,Dulal Chandra Das,Taha Selim Ustun,S M Suhail Hussain,Abdul Latif

doi:10.3390/su12176979

Abstract

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.

Highlights

Recent developments in power systems have led to more complex dynamic networks and have radically revolutionized the very concept of the conventional power system
There is no comprehensive definition and definite structure of a virtual power plant (VPP), there are some general conceptual designs. It is a cluster of distributed energy resources (DERs), storage units, controllable or flexible loads that together operate as a conventional generator [2]
VPPs are likely to play a vital task in future energy systems through the aggregation of DERs and storage devices, developing control strategies for proper operation is a challenging task [12]

Summary

Introduction

Recent developments in power systems have led to more complex dynamic networks and have radically revolutionized the very concept of the conventional power system. VPPs are likely to play a vital task in future energy systems through the aggregation of DERs and storage devices, developing control strategies for proper operation is a challenging task [12]. This is because of the integration of RE sources which are stochastic in nature due change in the weather conditions. Recent works on VPP [13,14,15,16,17,18,19] emphasize the requirement of frequency regulation in power system networks with high penetration of renewable sources or DERs. A VPP with a robust and efficient energy management system (EMS) has the potential to address this need [13]. (c) Considering communication delay in control system design and evaluations; (d) Use of a recent meta-heuristic optimization tool, namely BOA, for optimizing the control parameters and comparing the performance with GA, PSO, and SSA

DER Modeling in VPP

B VIRTUAL POWER PLANT

Conventional Synchronous Generator

Formation of the Objective Function

Adopted Control Strategy