The increasing integration of renewable-based distributed generation(DG)brings growing challenges to distribution network(DN)voltage control.To address this issue,a two-stage distributed online voltage control framewo...The increasing integration of renewable-based distributed generation(DG)brings growing challenges to distribution network(DN)voltage control.To address this issue,a two-stage distributed online voltage control framework(TDOVC)is proposed in this paper.In the proposed method,legacy voltage control devices are controlled in the upper stage on an hourly timescale,while DGs operate autonomously online in the lower stage to remove instantaneous voltage violations.The idea of receding horizon control is applied in the upper stage to comprehensively consider the current and future renewable generation,and the generalized fast dual ascent(Gf-DA)is employed in the lower stage to effectively manage DGs through near real-time optimization.The effectiveness of the proposed TDO-VC is demonstrated by rigorous theoretical analysis and case studies on IEEE-123 bus system.展开更多
基金supported by UT-Battelle,LLC under Contract DE-AC05-00OR22725 with the U.S.Department of Energy(DOE)supported in part by the DOE Solar Energy Technologies Office(SETO).
文摘The increasing integration of renewable-based distributed generation(DG)brings growing challenges to distribution network(DN)voltage control.To address this issue,a two-stage distributed online voltage control framework(TDOVC)is proposed in this paper.In the proposed method,legacy voltage control devices are controlled in the upper stage on an hourly timescale,while DGs operate autonomously online in the lower stage to remove instantaneous voltage violations.The idea of receding horizon control is applied in the upper stage to comprehensively consider the current and future renewable generation,and the generalized fast dual ascent(Gf-DA)is employed in the lower stage to effectively manage DGs through near real-time optimization.The effectiveness of the proposed TDO-VC is demonstrated by rigorous theoretical analysis and case studies on IEEE-123 bus system.
