基于荷-储碳流模型的电力系统双层优化调度

doi:10.16182/j.issn1004731x.joss.23-0764

摘要/Abstract

摘要：

为减少高耗能机组出力，同时增加风电消纳能力，考虑负荷和储能两类灵活调用资源，提出基于荷-储碳放流模型的电力系统双层经济低碳优化调度方法。基于电力系统碳排放流理论，分别建立负荷和储能设备的碳排放流模型；设计考虑荷-储协同优化的低碳调度策略，在负荷侧建立基于负荷节点碳势的电-碳耦合价格需求响应模型，同时鉴于荷侧降碳调节的局限性，在储能侧建立基于碳流模型的低碳调度策略，实现荷-储协同低碳调度策略；考虑经济性和低碳性，建立包含上层经济调度、下层低碳调度的双层优化调度模型。通过改进IEEE-14节点系统对优化调度方法进行仿真验证，结果表明：提出的优化调度方法在保证经济性的同时，减少了弃风，并降低了高耗能机组出力，从而有效降低了全系统的碳排放。

关键词: 碳排放, 需求响应, 低碳经济调度, 荷-储, 电-碳耦合模型, 风电

Abstract:

In order to reduce the output of high energy consuming units on the power generation side, increase the absorption capacity of wind power, and consider the flexible resource allocation such as load and energy storage, a two-level economic low-carbon optimal scheduling method for power systems based on a carbon storage and discharge model is proposed. Based on the carbon emission flow theory of power system, a model for load and energy storage equipment is established; A demand response model based on the electricity carbon coupling price is established on the load side, and in view of the limitation on the load side, a low-carbon scheduling strategy based on the carbon flow model for energy storage is established to realize a coordinated low-carbon scheduling strategy for load storage. Considering the economy and low carbon, a two-level optimal scheduling model including upper economic scheduling and lower low-carbon scheduling is established. Simulation on an improved IEEE-14 bus system show that the proposed optimal scheduling method can reduce the wind abandonment, promote the replacement of high energy consumption units, and effectively reduce carbon emissions while ensuring the economy.

Key words: carbon emissions, demand response, low carbon economic dispatch, load storage, electric carbon coupling model, wind power

中图分类号:

TP391.9

余洋,夏雨星,陆文韬等 . 基于荷-储碳流模型的电力系统双层优化调度[J]. 系统仿真学报, 2024, 36(10): 2288-2299.

Yu Yang,Xia Yuxing,Lu Wentao,et al . Two-level Optimal Dispatch of Power System Based on Load-storage Carbon Flow Model[J]. Journal of System Simulation, 2024, 36(10): 2288-2299.

图/表 15

图1

图2

图3

图4

图5

图6

表1

火电机组参数表

机组编号	最大出力/ $M W$	最小出力/ $M W$	启停成本/ $$$	机组爬坡/ $M W / 15 m i n$	成本参数 $a ($ / M W 2) / b ($ / M W) / c ($)$	碳排放强度 $/$ $(t / (M W ⋅ h))$
1	150	20	400	15	0.005/10/660	0.892
2	200	40	450	18	0.008/8/700	1.025
3	180	25	355	25	0.01/4/450	1.300
4	250	40	450	10	0.01/17/250	0.720
5	200	0	/	/	0/25/0	0

表1

图7

图8

图9

图10

表2

各场景调度成本

场景	火电成本/ $$$	风电成本/ $$$	碳交易成本/ $$$	碳排放量/t	总成本/ $$$
Ⅰ	103 464	9 648	0	8 236	113 112
Ⅱ	97 358	10 652	-3 984	7 543	104 026
Ⅲ	96 506	11 058	-6 069	6 965	101 495

表2

图11

图12

图13

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