光热发电商参与下的电力现货市场均衡分析

doi:10.12204/j.issn.1000-7229.2022.01.014

电力建设 ›› 2022, Vol. 43 ›› Issue (1): 122-131.doi: 10.12204/j.issn.1000-7229.2022.01.014

光热发电商参与下的电力现货市场均衡分析

梁政¹(), 魏震波¹(), 孙舟倍¹(), 马志程²(), 周强²(), 邵冲³()

1.四川大学电气工程学院,成都市 610065
2.国网甘肃省电力公司电力科学研究院,兰州市 730070
3.国网甘肃省电力公司,兰州市 730030

收稿日期:2021-08-17 出版日期:2022-01-01 发布日期:2021-12-21
通讯作者: 魏震波 E-mail:liangzh2011@163.com;weizhenbo@scu.edu.cn;1057825947@qq.com;mazc@gs.sgcc.com.cn;eezhouqiang@163.com;shaoch_dkzx@gs.sgcc.com.cn
作者简介:梁政(1992),男,硕士研究生,主要研究方向为电力市场,E-mail: liangzh2011@163.com;
孙舟倍(1995),男,硕士研究生,主要研究方向为电力市场,E-mail: 1057825947@qq.com;
马志程(1969),男,教授级高级工程师,主要研究方向为电力系统,信息通信技术,E-mail: mazc@gs.sgcc.com.cn;
周强(1985),男,博士,高级工程师,主要研究方向为新能源并网技术及政策,E-mail: eezhouqiang@163.com;
邵冲(1984),男,博士,主要研究方向为电力系统分析与新能源并网,E-mail: shaoch_dkzx@gs.sgcc.com.cn。
基金资助:
甘肃省科技重大专项计划基金资助项目(19ZD2GA003)

Analysis of the Equilibrium of Electricity Spot Market with the Participation of CSP

LIANG Zheng¹(), WEI Zhenbo¹(), SUN Zhoubei¹(), MA Zhicheng²(), ZHOU Qiang²(), SHAO Chong³()

1. College of Electrical Engineering, Sichuan University, Chengdu 610065, China
2. Electric Power Research Institute, State Grid Gansu Electric Power Company, Lanzhou 730070, China
3. State Grid Gansu Electric Power Company, Lanzhou 730030, China

Received:2021-08-17 Online:2022-01-01 Published:2021-12-21
Contact: WEI Zhenbo E-mail:liangzh2011@163.com;weizhenbo@scu.edu.cn;1057825947@qq.com;mazc@gs.sgcc.com.cn;eezhouqiang@163.com;shaoch_dkzx@gs.sgcc.com.cn
Supported by:
Major Science and Technology Special Plan of Gansu Province(19ZD2GA003)

摘要/Abstract

摘要：

针对当前国内光热电站(concentrating solar power,CSP)参与电力市场交易程度低,市场相关运营研究尚属空白。文章考虑光热发电商作为市场承载主体,面向电力现货市场交易,在解析其内部“光、热、电”能流特征基础上,构建了以热能为能量中枢的光热电站运行模型;然后,以光热发电商售电收益最大为目标,建立了基于多寡头古诺模型的市场交易决策模型,并给出了其非线性互补方法求解过程;最后,以国内某实际光热电站为参考,在3类典型日场景中对其参与电力市场交易进行了实例模拟。结果表明:因其优良的出力稳定特性,光热发电较传统光伏发电,市场竞争能力有显著提升,很大程度上可以弥补其在容量成本上的不足;光热发电的富余热量,能更好地满足电热耦合系统的需求,替代热电联产环节,降低了运行成本,满足了未来综合能源系统发展需求。

关键词: 光热发电, 电力现货市场, 古诺博弈, 均衡分析, 太阳能利用

Abstract:

In view of the low degree of participation in electricity market transactions of concentrating solar power (CSP) in China, market-related operation research is still blank. This paper considers CSP as the main body of the market and is aimed at the electricity spot market transaction. According to the analysis of its internal“light, heat, and electricity”energy flow characteristics, an operation model of a CSP station with thermal energy as the energy center is constructed. Then, with the goal of maximizing the electricity sales revenue of CSP, a market transaction decision model based on the multi-oligarch Cournot model is constructed, and the solution process of its nonlinear complementary method is given. Finally, taking an actual CSP station as a reference, in three typical daily scenarios, an example simulation of CSP participating in electricity market transactions is carried out. The results show that: due to its excellent stable output, compared with traditional PV, CSP has a significant improvement in market competitiveness, which can largely make up for its lack of capacity cost. The surplus heat of CSP can better satisfy the demand for electro-thermal coupling system, replace cogeneration links, reduce operating costs, and meet the development needs of the integrated energy system in the future.

Key words: concentrating solar power, electricity spot market, Cournot game, equilibrium analysis, solar energy utilization

中图分类号:

TM61

梁政, 魏震波, 孙舟倍, 马志程, 周强, 邵冲. 光热发电商参与下的电力现货市场均衡分析[J]. 电力建设, 2022, 43(1): 122-131.

LIANG Zheng, WEI Zhenbo, SUN Zhoubei, MA Zhicheng, ZHOU Qiang, SHAO Chong. Analysis of the Equilibrium of Electricity Spot Market with the Participation of CSP[J]. ELECTRIC POWER CONSTRUCTION, 2022, 43(1): 122-131.

图/表 17

图1 光热电站内部热能流向

Fig.1 The internal thermal energy flow of CSP

表1 常规发电商的参数

Table 1 Parameters of generators

表2 光热发电商的参数

Table 2 Parameters of CSP

表3 光伏发电商的参数

Table 3 Parameters of PV

表4 各时段负荷参数αt的取值

Table 4 Value of αt in each period

图2 各场景的预测DNI和实际DNI

Fig.2 Predicted and actual DNIs of each scenario

图3 5月份的日前市场交易结果及各时段电价

Fig.3 Day-ahead electricity market trading results and electricity prices for each period in May

图4 7月份的日前市场交易结果及各时段电价

Fig.4 Day-ahead electricity market trading results and electricity prices for each period in July

图5 12月份的日前市场交易结果及各时段电价

Fig.5 Day-ahead electricity market trading results and electricity prices for each period in December

图6 光热发电商实时市场中的偏差

Fig.6 Deviations in the real-time market of CSP

图7 光伏发电商实时市场中的偏差

Fig.7 Deviations in the real-time market of PV

表5 各市场主体的发电量

Table 5 Power generation of each market participant MW·h

表6 各市场主体的发电量

Table 6 Power generation of each market participant MW·h

图8 5月的储热系统充放热情况及各时段储热量

Fig.8 Charging and discharging situation of the thermal storage system and the total thermal storage in each period in May

图9 7月的储热系统充放热情况及各时段储热量

Fig.9 Charging and discharging situation of the thermal storage system and the total thermal storage in each period in July

图10 12月的储热系统充放热情况及各时段储热量

Fig.10 Charging and discharging situation of the thermal storage system and the total thermal storage in each period in December

表7 光热电站内部热能流向及弃热情况

Table 7 Utilization of internal thermal energy and heat abandonment of CSP

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光热发电商参与下的电力现货市场均衡分析

Analysis of the Equilibrium of Electricity Spot Market with the Participation of CSP

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