Non-Convex Economic Dispatch of a Virtual Power Plant via a Distributed Randomized Gradient-Free Algorithm

作者：Xie, Jun^*; Cao, Chi

来源：Energies, 2017, 10(7): 1051.

DOI：10.3390/en10071051

• distributed randomized gradient-free algorithm
• distributed randomized gradient-free oracles
• non-convex economic dispatch
• virtual power plant

The economic dispatch problem of a virtual power plant (VPP) is becoming non-convex for distributed generators' characteristics of valve-point loading effects, prohibited operating zones, and multiple fuel options. In this paper, the economic dispatch model of VPP is established and then solved by a distributed randomized gradient-free algorithm. To deal with the non-smooth objective function, its Gauss approximation is used to construct distributed randomized gradient-free oracles in optimization iterations. A projection operator is also introduced to solve the discontinuous variable space problem. An example simulation is implemented on a modified IEEE-34 bus test system, and the results demonstrate the effectiveness and applicability of the proposed algorithm.

• 出版日期2017-7
• 单位南京邮电大学; 河海大学