Building emission reduction is an important way to achieve China’s carbon peaking and carbon neutrality goals.Aiming at the problem of low carbon economic operation of a photovoltaic energy storage building system,a ...Building emission reduction is an important way to achieve China’s carbon peaking and carbon neutrality goals.Aiming at the problem of low carbon economic operation of a photovoltaic energy storage building system,a multi-time scale optimal scheduling strategy based on model predictive control(MPC)is proposed under the consideration of load optimization.First,load optimization is achieved by controlling the charging time of electric vehicles as well as adjusting the air conditioning operation temperature,and the photovoltaic energy storage building system model is constructed to propose a day-ahead scheduling strategy with the lowest daily operation cost.Second,considering inter-day to intra-day source-load prediction error,an intraday rolling optimal scheduling strategy based on MPC is proposed that dynamically corrects the day-ahead dispatch results to stabilize system power fluctuations and promote photovoltaic consumption.Finally,taking an office building on a summer work day as an example,the effectiveness of the proposed scheduling strategy is verified.The results of the example show that the strategy reduces the total operating cost of the photovoltaic energy storage building system by 17.11%,improves the carbon emission reduction by 7.99%,and the photovoltaic consumption rate reaches 98.57%,improving the system’s low-carbon and economic performance.展开更多
长期储能(long-duration energy storage,LDES)技术的不断发展成熟为解决新型电力系统季节性供需不平衡问题提供了有效途径。现有研究对LDES技术经济参数的发展情况和不同组合对LDES配置需求和成本效益的影响尚缺乏精细化分析,难以准确...长期储能(long-duration energy storage,LDES)技术的不断发展成熟为解决新型电力系统季节性供需不平衡问题提供了有效途径。现有研究对LDES技术经济参数的发展情况和不同组合对LDES配置需求和成本效益的影响尚缺乏精细化分析,难以准确探究LDES的灵活性潜力。为此,该文分析考虑技术经济性的LDES规划特性,面向新型电力系统建立内嵌年度8760h全景时序运行模拟的多时间尺度储能协调优化规划模型。算例基于我国西北某区域实际数据,评估LDES技术经济参数的不同组合与LDES成本效益水平、优化配置结构和对短期储能替代作用的关系。结果表明,LDES的成本效益受储能容量成本和放电效率的影响最大,在低碳转型发展背景下引入LDES最多可以降低电力系统40%左右的总成本。展开更多
文摘Building emission reduction is an important way to achieve China’s carbon peaking and carbon neutrality goals.Aiming at the problem of low carbon economic operation of a photovoltaic energy storage building system,a multi-time scale optimal scheduling strategy based on model predictive control(MPC)is proposed under the consideration of load optimization.First,load optimization is achieved by controlling the charging time of electric vehicles as well as adjusting the air conditioning operation temperature,and the photovoltaic energy storage building system model is constructed to propose a day-ahead scheduling strategy with the lowest daily operation cost.Second,considering inter-day to intra-day source-load prediction error,an intraday rolling optimal scheduling strategy based on MPC is proposed that dynamically corrects the day-ahead dispatch results to stabilize system power fluctuations and promote photovoltaic consumption.Finally,taking an office building on a summer work day as an example,the effectiveness of the proposed scheduling strategy is verified.The results of the example show that the strategy reduces the total operating cost of the photovoltaic energy storage building system by 17.11%,improves the carbon emission reduction by 7.99%,and the photovoltaic consumption rate reaches 98.57%,improving the system’s low-carbon and economic performance.
文摘长期储能(long-duration energy storage,LDES)技术的不断发展成熟为解决新型电力系统季节性供需不平衡问题提供了有效途径。现有研究对LDES技术经济参数的发展情况和不同组合对LDES配置需求和成本效益的影响尚缺乏精细化分析,难以准确探究LDES的灵活性潜力。为此,该文分析考虑技术经济性的LDES规划特性,面向新型电力系统建立内嵌年度8760h全景时序运行模拟的多时间尺度储能协调优化规划模型。算例基于我国西北某区域实际数据,评估LDES技术经济参数的不同组合与LDES成本效益水平、优化配置结构和对短期储能替代作用的关系。结果表明,LDES的成本效益受储能容量成本和放电效率的影响最大,在低碳转型发展背景下引入LDES最多可以降低电力系统40%左右的总成本。
