新型能源子网的运行场景及控制策略研究

Study on the Operation Scenes and Control Strategy Based on Energy Sub Grid

以一种双端并网新型能源子网为研究对象,该能源子网以电力集能器为核心,由光伏发电、储能装置、交直流负荷等单元构成。通过分析能源子网各组成单元的潮流流动情况,归纳了能源子网的多物理运行场景,并对其进行详细地分类分析;根据能源子网总体控制目标,研究了各种运行场景下的控制策略,设计了运行场景的切换原则;最后在Matlab平台上搭建了新型能源子网的仿真模型。经分析,该能源子网能够在多种物理场景下稳定运行,验证了上述控制策略的可行性和有效性。

A new double-end grid-connected energy subnet was taken as the research object.The energy subnet takes the electric energy concentrator as the core and was composed of photovoltaic power generation,energy storage devices and AC-DC load cells.By analyzing the trend of flow in each unit of energy sub-network,the multi-physics operation scene of energy sub-network was listed and classified in detail.Based on the overall control objectives of energy sub-network,the control strategies in various operation scenarios were studied.Finally,the simulation model of a new energy subnet was built on the platform of Matlab.The energy subnet can be operated stably under a variety of physical scenarios,and the feasibility and effectiveness of the above control strategies were verified.