Distributed power supply energy efficiency optimization method and system

• Main Authors: DING XIAOHUA, ZHU JIN, WANG HAILONG, FU MING, SONG JINYAN, JIA WEI, CHEN CHUN, WANG BINGWEN, WANG RUIQI, HUANG SUJUAN
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2017
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SYSTEMS FOR STORING ELECTRIC ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention discloses a distributed power supply energy efficiency optimization method and system. Scheduling control is carried out from a day-ahead time scale and a day time scale, and modeling and optimization are respectively carried out on the two phases. A load is divided into an uncontrollable load, a translational load and a reducible load, an optimization model takes minimization of the sum of an energy storage cost in a scheduling period, an interaction cost with an upper power grid and a load cost as a target, features of a distributed power supply, energy storage and multi-element loads are taken into integrated consideration, interactive links among the three are enhanced, good interaction between a generating side and a load side is realized, and while regenerative energy is fully utilized, the integrated utilization efficiency of energy is improved. 本发明公开了种分布式电源能效优化方法及系统，从日前和日内两个时间尺度进行调度控制，分别对这两个阶段进行建模、优化。将负荷分为不可控负荷、可平移负荷和可削减负荷，优化模型以调度周期内的储能成本、与上级电网交互成本及负荷成本之和最小为目标，综合考虑分布式电源、储能与多元负荷的特性，增强三者之间