考虑广义储能与碳捕集设备联合调峰的电力系统低碳经济调度

Low-carbon economic dispatching of power system considering joint peak shaving of generalized energy storage and carbon capture equipment

在运用碳捕集设备提高深度调峰机组负荷低谷时段出力的同时,采用广义储能提高负荷高峰时段的碳捕集水平,是实现碳达峰、碳中和的重要途径之一。提出考虑广义储能与火电深度调峰的低碳经济调度模型,通过引入碳捕集设备与广义储能解决机组深度调峰损耗大及负荷高峰时段碳排放量高的问题。将深度调峰机组改造为碳捕集机组,提高其深度调峰时段的出力水平;将由价格型需求响应与储能装置构成的广义储能用于调度模型中,提高负荷高峰时段的碳捕集水平;以系统总运行成本最优为目标,制定各主体出力方案。仿真结果表明,所提模型能够缓解机组深度调峰压力,提高碳捕集机组的捕碳水平,兼顾系统的经济效益与低碳性能。

It is one of the important ways to realize carbon peaking and carbon neutrality by using carbon capture equipment to improve the output of deep peak shaving units during the load valley period while using the generalized energy storage to improve the carbon capture level during the load peak period.A low-carbon economic dispatching model is proposed considering generalized energy storage and deep peak shaving of thermal power,the problems of large deep peak shaving loss of units and high carbon emission during load peak period are solved through the introduction of carbon capture equipment and generalized energy storage.The deep peak shaving units are transformed into carbon capture units to increase their output levels during deep peak shaving period.The generalized energy storage consisting of priced-based demand response and energy storage devices is used in the dispatching model,and the carbon capture level during load peak period is improved.The output plan of each entity is designed with the optimal total system operation cost as the object.The simulative results show that the proposed model can alleviate the deep peak shaving pressure of units,improve the carbon capture level of carbon capture units,and consider both the economic benefit and low-carbon performance of the system.