Distributed Economic Dispatch of Virtual Power Plant under a Non-Ideal Communication Network

Chi Cao, Jun Xie, Dong Yue, Chongxin Huang, Jixiang Wang, Shuyang Xu and Xingying Chen
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Chi Cao: College of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
Jun Xie: College of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
Dong Yue: College of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
Chongxin Huang: Institute of Advanced Technology, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
Jixiang Wang: College of Energy and Electrical Engineering, Hohai University, Nanjing 210098, China
Shuyang Xu: College of Energy and Electrical Engineering, Hohai University, Nanjing 210098, China
Xingying Chen: College of Energy and Electrical Engineering, Hohai University, Nanjing 210098, China

Energies, 2017, vol. 10, issue 2, 1-18

Abstract: A virtual power plant (VPP) is aimed to integrate distributed energy resources (DERs). To solve the VPP economic dispatch (VPED) problem, the power supply-demand balance, power transmission constraints, and power output constraints of each DER must be considered. Meanwhile, the impacts of communication time delays, channel noises, and the time-varying topology on the communication networks cannot be ignored. In this paper, a VPED model is established and a distributed primal-dual sub-gradient method (DPDSM) is employed to address the presented VPED model. Compared with the traditional centralized dispatch, the distributed dispatch has the advantages of lower communication costs and stronger system robustness, etc. Simulations are realized in the modified IEEE-34 and IEEE-123 bus test VPP systems and the results indicate that the VPED strategy via DPDSM has the superiority of better convergence, more economic profits, and stronger system stability.

Keywords: distributed energy resources (DERs); distributed dispatch; virtual power plant (VPP); distributed primal-dual sub-gradient method (DPDSM); non-ideal communication network (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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