热电联产虚拟电厂两阶段分布鲁棒优化调度

doi:10.16182/j.issn1004731x.joss.22-0059

摘要/Abstract

摘要：

热电联产虚拟电厂(combined heat and power virtual power plant, CHP-VPP)聚合了各类电热出力单元，可兼顾风光出力不确定性、动态电价、用户热舒适度等影响，实现整体出力的优化调度。提出了两阶段分布鲁棒优化调度方法，第一阶段考虑计划调度，旨在保证CHP-VPP的收益最大；第二阶段基于矩不确定分布鲁棒方法，构建风光出力的不确定性模糊集，引入用户热舒适度HOMIE模型，降低电热净负荷波动幅度，实现对CHP-VPP内部各单元实时出力的优化调整。针对IEEE14节点模型进行算例研究，分析了不确定参数、不同优化方法以及动态电价对调度结果的影响，结果表明：所提出的两阶段调度方法能够有效进行电热调度，实现系统的收益最大化和波动最小化。

关键词: 热电联产虚拟电厂, 优化调度, 矩不确定性, 分布鲁棒优化, 热舒适度

Abstract:

Combined heat and power virtual power plant (CHP-VPP) aggregates various electrical and thermal output units and takes into account the uncertainty of wind and solar output, dynamic electricity prices, thermal comfort of users, and other influences to achieve optimal dispatching of overall output. A two-stage distributed robust optimal dispatching method is proposed. In the first stage, planned dispatching is considered, so as to maximize the benefit of CHP-VPP. In the second stage, a fuzzy set of wind and solar output uncertainties is constructed based on the distributed robust method of moment uncertainty, and the thermal comfort model of users, namely HOMIE, is introduced to reduce the net load fluctuation of the electricity and heat, so as to optimize and adjust the real-time output of the units in CHP-VPP. A case study is carried out for the IEEE14 node model, and the effects of uncertain parameters, different optimization methods, and dynamic electricity prices on the dispatching results are analyzed. The results show that the proposed method can effectively dispatch electricity and heat, maximize the benefit of the system, and minimize fluctuations.

Key words: combined heat and power virtual power plant (CHP-VPP), optimal dispatching, moment uncertainty, distributed robust optimization, thermal comfort

中图分类号:

TP391.9

范雅倩, 于松源, 房方. 热电联产虚拟电厂两阶段分布鲁棒优化调度[J]. 系统仿真学报, 2023, 35(5): 1046-1058.

Yaqian Fan, Songyuan Yu, Fang Fang. Two-Stage Distributed Robust Optimal Dispatching for a Combined Heat and Power Virtual Power Plant[J]. Journal of System Simulation, 2023, 35(5): 1046-1058.

图/表 11

图1

表1

表2

图2

图3

表3

CHP-VPP各个单元参数

出力单元	参数		取值
CHP机组	电功率允许范围/MW		81~247
	热功率允许范围/MW		0~160
	电功率爬坡约束值/MW		60
	热功率爬坡约束值/MW		30
	成本系数	$c 0$	2 650
		$c 1$	14.5
		$c 2$	4.2
		$c 3$	0.034 5
		$c 4$	0.031
		$c 5$	0.030
储电单元	总容量/MW		50
	单个容量/MW		1
	额定功率/MW		0.6
	充放电效率/%		95
储热单元	总容量/MW		80
	单个容量/MW		1
	额定功率/MW		0.6
	充放电效率/%		95
风电	总容量/MW		250
	单个容量/MW		50
	额定功率/MW		48
	成本/(元/MWh)		9.8
光伏	总容量/MW		300
	单个容量/MW		100
	额定功率/MW		90
	成本/(元/MWh)		30.6
电热泵	总容量/MW		40
	单个容量/MW		20
	COP/%		400
	成本/(元/MWh)		23.38

表3

图4

图5

表4

表5

图6

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分块	配额/MW	价格/(元/kWh)
分块	配额/MW	峰时	平时	谷时
1	10	0.41	0.40	0.39
2	30	0.38	0.36	0.35
3	60	0.35	0.33	0.30
4	100	0.26	0.25	0.24

时刻	动态电价	分时电价	时刻	动态电价	分时电价
01:00	390	320	13:00	400	335
02:00	390	320	14:00	400	335
03:00	390	320	15:00	400	335
04:00	390	320	16:00	400	335
05:00	390	320	17:00	400	335
06:00	390	320	18:00	410	350
07:00	390	320	19:00	410	350
08:00	390	320	20:00	410	350
09:00	380	350	21:00	410	350
10:00	380	350	22:00	400	335
11:00	380	350	23:00	400	335
12:00	380	350	24:00	400	335

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