发电技术 ›› 2023, Vol. 44 ›› Issue (5): 625-633.DOI: 10.12096/j.2096-4528.pgt.23037
张宁1, 朱昊1, 杨凌霄2, 胡存刚1
收稿日期:
2023-03-30
出版日期:
2023-10-31
发布日期:
2023-10-30
作者简介:
基金资助:
Ning ZHANG1, Hao ZHU1, Lingxiao YANG2, Cungang HU1
Received:
2023-03-30
Published:
2023-10-31
Online:
2023-10-30
Supported by:
摘要:
围绕“碳达峰、碳中和”目标,能源电力系统“源-网-荷-储”全环节低碳化面临新的要求和挑战,高比例可再生能源发电已成为必然趋势。考虑可再生能源发电的不确定性对电力系统安全稳定运行的影响,利用具备多能互补特性的虚拟电厂(virtual power plant,VPP)是改善该问题的有效途径。为此,提出一种多能互补虚拟电厂优化调度策略。首先,充分考虑多种能源之间的耦合关系,构建计及“源-网-荷-储”全环节的虚拟电厂运行机制;其次,根据所提运行机制,提出以低碳经济为目标的多能互补优化调度模型,通过对各类型装置进行协调调度,促进可再生能源的消纳;最后,以某地区含可再生能源发电在内的多能互补虚拟电厂为参考案例进行仿真分析,验证所提策略的有效性。
中图分类号:
张宁, 朱昊, 杨凌霄, 胡存刚. 考虑可再生能源消纳的多能互补虚拟电厂优化调度策略[J]. 发电技术, 2023, 44(5): 625-633.
Ning ZHANG, Hao ZHU, Lingxiao YANG, Cungang HU. Optimal Scheduling Strategy of Multi-Energy Complementary Virtual Power Plant Considering Renewable Energy Consumption[J]. Power Generation Technology, 2023, 44(5): 625-633.
机制 | 时段 | 价格/[元/(kW⋅h)] |
---|---|---|
配电网分时价格机制 | 00:00—08:00 | 0.428 |
08:00—13:00 | 0.953 | |
13:00—18:00 | 0.687 | |
18:00—21:00 | 1.168 | |
21:00—24:00 | 0.572 | |
天然气分时价格机制 | 00:00—06:00 | 0.227 |
06:00—09:00 | 0.465 | |
09:00—12:00 | 0.584 | |
12:00—15:00 | 0.734 | |
15:00—19:00 | 0.465 | |
19:00—21:00 | 0.702 | |
21:00—24:00 | 0.227 |
表1 分时电价和气价
Tab. 1 Time share electricity price and gas price
机制 | 时段 | 价格/[元/(kW⋅h)] |
---|---|---|
配电网分时价格机制 | 00:00—08:00 | 0.428 |
08:00—13:00 | 0.953 | |
13:00—18:00 | 0.687 | |
18:00—21:00 | 1.168 | |
21:00—24:00 | 0.572 | |
天然气分时价格机制 | 00:00—06:00 | 0.227 |
06:00—09:00 | 0.465 | |
09:00—12:00 | 0.584 | |
12:00—15:00 | 0.734 | |
15:00—19:00 | 0.465 | |
19:00—21:00 | 0.702 | |
21:00—24:00 | 0.227 |
参数 | ηeg | ηeh | ηgh |
---|---|---|---|
数值 | 0.75 | 0.90 | 0.90 |
表2 能量耦合装置转化效率
Tab. 2 Conversion efficiency of energy coupling device
参数 | ηeg | ηeh | ηgh |
---|---|---|---|
数值 | 0.75 | 0.90 | 0.90 |
类型 | 参数 | 数值 |
---|---|---|
储电设备 | 能量损耗率δe | 0.03 |
充电效率ηec | 0.97 | |
放电效率ηed | 0.97 | |
储气设备 | 能量损耗率δg | 0.04 |
充能效率ηgc | 0.95 | |
放能效率ηgd | 0.95 | |
储热设备 | 能量损耗率δh | 0.05 |
充能效率ηhc | 0.93 | |
放能效率ηhd | 0.93 |
表3 储能装置相关参数
Tab. 3 Related parameters of energy storage devices
类型 | 参数 | 数值 |
---|---|---|
储电设备 | 能量损耗率δe | 0.03 |
充电效率ηec | 0.97 | |
放电效率ηed | 0.97 | |
储气设备 | 能量损耗率δg | 0.04 |
充能效率ηgc | 0.95 | |
放能效率ηgd | 0.95 | |
储热设备 | 能量损耗率δh | 0.05 |
充能效率ηhc | 0.93 | |
放能效率ηhd | 0.93 |
费用类型 | 电费 | 天然气费 | 弃电惩罚 | 碳排放费 | 总费用 |
---|---|---|---|---|---|
成本 | 120.370 | 376.820 | 157.437 | 37.796 | 692.423 |
表4 日内最小运行成本 (元)
Tab. 4 Intraday minimum running cost
费用类型 | 电费 | 天然气费 | 弃电惩罚 | 碳排放费 | 总费用 |
---|---|---|---|---|---|
成本 | 120.370 | 376.820 | 157.437 | 37.796 | 692.423 |
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