考虑供需不确定性的区域综合能源系统时间解耦分层能量管理

doi:10.3969/j.issn.2097-0706.2023.06.003

综合智慧能源 ›› 2023, Vol. 45 ›› Issue (6): 17-24.doi: 10.3969/j.issn.2097-0706.2023.06.003

考虑供需不确定性的区域综合能源系统时间解耦分层能量管理

窦真兰¹(), 沈建忠²(), 张春雁¹(), 江晶晶², 陈祺², 陈婧²

1.国网上海综合能源服务有限公司，上海 200023
2.国网上海市电力公司市北供电公司，上海 200040

收稿日期:2022-09-30 修回日期:2023-03-22 接受日期:2023-05-11 出版日期:2023-06-25
作者简介:窦真兰（1980），女，高级工程师，博士，从事综合能源系统及能源互联网等方面的研究，douzhl@126.com；
沈建忠（1973），男，高级工程师，从事电力营销工作，shenjianzhong@sh.sgcc.com.cn；
张春雁（1967），男，高级工程师，硕士，从事综合能源系统、能源互联网及电制氢综合利用等方面的研究，zhcytongji@126.com。
基金资助:
国网上海市电力公司科技项目(B30914200000)

Time-decoupling hierarchical energy management of integrated energy systems considering supply and demand uncertainty

DOU Zhenlan¹(), SHEN Jianzhong²(), ZHANG Chunyan¹(), JIANG Jingjing², CHEN Qi², CHEN Jing²

1. State Grid Shanghai Integrated Energy Services Corporation Limited， Shanghai 200023， China
2. Shibei Power Supply Company of State Grid Shanghai Municipal Electric Power Corporation Limited， Shanghai 200040， China

Received:2022-09-30 Revised:2023-03-22 Accepted:2023-05-11 Published:2023-06-25
Supported by:
State Grid Shanghai Electric Power Company(B30914200000)

摘要/Abstract

摘要：

进行以电为核心的区域综合能源系统运行优化研究，有利于提高能源利用率及系统运行的经济性、可靠性。针对区域综合能源系统中可再生能源出力与负荷需求的不确定性，提出基于能量枢纽的时间解耦分层能量管理策略。基于可再生能源和负荷预测的日前静态优化，实现了多种能源形式的协调利用。在基于反馈校正的日内滚动优化中引入储能一致性系数，使储能的日内滚动优化功率尽可能遵循日前静态优化结果，提高储能长时间尺度参与系统功率平衡的能力，降低系统供需不确定性的影响，系统抗干扰性增强；同时，根据功率预测误差按储能容量均衡分配备用功率，以提高惯性时间常数较小的电力电子化系统的安全稳定性。算例仿真证明了上述优化模型和策略的有效性。

关键词: 区域综合能源系统, 可再生能源, 能量枢纽, 储能, 供需不确定性, 滚动优化, 能量管理

Abstract:

Studying the operation optimization of regional integrated energy systems with electricity as their cores is conducive to improving their energy utilization efficiency， economy and reliability. To address the uncertainty of renewable energy outputs and load demands in the systems， a time-decoupling hierarchical energy management strategy based on energy hubs is proposed. The day-ahead static optimization based on the prediction on renewable energy outputs and load demands achieves the coordinated utilization of multiple energy. Then，the energy storage consistency weight coefficient is introduced into the intraday rolling optimization based on feedback correction， so that the intraday rolling optimised power of the energy storage system can comply with the day-ahead static optimization results. The strategy can improve the participation of energy storage systems into system power balance over a long-time scale，reduce the impact of the supply and demand uncertainty on the system， and enhance the anti-interference of the system. At the same time， reserve powers are distributed evenly according to the energy storage capacity and power prediction error， to improve the security and stability of the electrical power systems with small inertia time constant. Finally， the effectiveness of the optimization strategy and model is verified by simulation examples.

Key words: regional integrated energy system, renewable energy, energy hub, energy storage, supply and demand uncertainty, rolling optimization, energy management

中图分类号:

TK019

窦真兰, 沈建忠, 张春雁, 江晶晶, 陈祺, 陈婧. 考虑供需不确定性的区域综合能源系统时间解耦分层能量管理[J]. 综合智慧能源, 2023, 45(6): 17-24.

DOU Zhenlan, SHEN Jianzhong, ZHANG Chunyan, JIANG Jingjing, CHEN Qi, CHEN Jing. Time-decoupling hierarchical energy management of integrated energy systems considering supply and demand uncertainty[J]. Integrated Intelligent Energy, 2023, 45(6): 17-24.

图/表 13

图1

表1

基于EH的RIES优化变量描述

变量		描述说明
输入层	$P P V, t$	t 时刻PV输出功率，kW
	$P W T, t$	t 时刻WT输出功率，kW
	$P E X, t$	t 时刻与电网交易功率，kW
	$P G, t$	t 时刻购买天然气功率，kW
	$p E X, t$	t 时刻与电网交易电价，元/(kW·h)
	$p G, t$	t 时刻购买天然气价格，元/(kW·h)
存储层	$P E S, t$	t 时刻电储能输出功率，kW
	$P H S, t$	t 时刻热储能输出功率，kW
	$P C S, t$	t 时刻冷储能输出功率，kW
转换层	$η C H P E$	CHP机组产电效率
	$η C H P H$	CHP机组产热效率
	$η B$	燃气锅炉天然气转化为热的效率
	$C O P, C C$	压缩式制冷机制冷性能系数, 3.0
	$C O P, A C$	吸收式制冷机制冷性能系数, 0.9
	$α E, t$	t 时刻电母线能量调度因子
	$α H, t$	t 时刻热母线能量调度因子
	$α G, t$	t 时刻天然气母线能量调度因子
输出层	$P E L, t$	t 时刻电负荷，kW
	$P H L, t$	t 时刻热负荷，kW
	$P C L, t$	t 时刻冷负荷，kW

表1

图2

图3

图4

表2

表3

图5

图6

图7

图8

图9

图10

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设备	运维成本/[元·(kW·h)^-1]	启停机成本/元	效率/%	上坡/下坡功率/kW	功率上/下限/kW
CHPE	0.026	2.72	0.41	50/25	300/50
CHPH	0.026	2.72	0.45	50/25	460/80
GB	0.025	1.94	0.85		375/60

储能单元	运维成本/[元·(kW·h)^-1]	充/放电效率/%	充放百分比上限/%	容量百分比上/下限/%	初始容量/kW	额定容量/kW
电1	0.001 8	90	30	90/10	30	300
电2	0.001 8	90	30	90/10	20	200
热	0.001 6	90	25	85/10	30	300
冷	0.001 6	90	25	85/10	15	150

考虑供需不确定性的区域综合能源系统时间解耦分层能量管理

Time-decoupling hierarchical energy management of integrated energy systems considering supply and demand uncertainty

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