Title :
Hierarchical MPC-based energy management and frequency regulation participation of a virtual power plant
Author :
Zhang, Tianzhu ; Gooi, H.B.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
A Virtual Power Plant (VPP) concept is utilized to manage multiple geographically dispersed energy resources. The purpose is to incorporate Distributed Energy Resources (DERs), Photovoltaic (PV) and energy storage units into the grid and to realize their economic and stable cooperation in a liberalized energy market. The paper proposed a centralized two-level hierarchical VPP controller to address both its commercial concerns and the participation into the energy market as well as the ancillary service market. The controller targets are attained with the Model Predictive Control (MPC) strategy, with different objective functions and constraints in the two levels. The primary control employs the Lasso MPC approach to allocate power imbalance commands between PV energy system and the Battery Energy Storage System (BESS). The secondary control mainly considers the income of the VPP, minimizing power purchase from the utility grid. Finally, a numerical demonstration is conducted using lumped system models, real weather and solar insolation data, as well as load data from the grid.
Keywords :
battery storage plants; distributed power generation; energy management systems; frequency control; power generation control; power grids; power markets; power plants; predictive control; MPC strategy; PV energy system; battery energy storage system; centralized two-level hierarchical VPP controller; distributed energy resources; energy storage units; frequency regulation participation; hierarchical MPC-based energy management; lumped system models; model predictive control; multiple geographically dispersed energy resources; photovoltaic units; solar insolation data; virtual power plant; Batteries; Cogeneration; Economics; Frequency control; Load modeling; Battery Energy Storage System (BESS); Economic Dispatch (ED); Load Frequency Control (LFC); Model Predictive Control (MPC); Virtual Power Plant (VPP);
Conference_Titel :
Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2014 IEEE PES
Conference_Location :
Istanbul
DOI :
10.1109/ISGTEurope.2014.7028751