计及实时需求响应的综合能源信息物理系统可靠性分析

doi:10.12204/j.issn.1000-7229.2020.12.003

电力建设 ›› 2020, Vol. 41 ›› Issue (12): 25-40.doi: 10.12204/j.issn.1000-7229.2020.12.003

计及实时需求响应的综合能源信息物理系统可靠性分析

王澜灵¹, 刘俊勇¹, 许立雄¹, 贺心达¹, 唐杰¹, 房钢²

1.四川大学电气工程学院, 成都市 610065
2.国网新疆电力有限公司乌鲁木齐供电公司,乌鲁木齐市 830000

收稿日期:2020-06-24 出版日期:2020-12-01 发布日期:2020-12-04
通讯作者: 许立雄
作者简介:王澜灵(1997),女,硕士研究生,主要研究方向为多能源系统规划与可靠性;|刘俊勇(1963),男,博士,教授,博士生导师,主要研究方向为电力市场、电力系统稳定与控制、分布式发电及智能电网等;|贺心达(1995),男,硕士研究生,主要研究方向为电力系统分析、配电网运行评价;|唐杰(1993),男,硕士研究生,主要研究方向为市场环境下主动配电网运行与规划;|房钢(1984),男,本科,工程师,从事电网项目规划、配电网项目运维、建设管理研究。
基金资助:
国家电网公司科技项目(SGXJWLOOYJJS1801742)

Reliability Analysis of Integrated Energy Cyber Physical System Considering Real-Time Demand Response

WANG Lanling¹, LIU Junyong¹, XU Lixiong¹, HE Xinda¹, TANG Jie¹, FANG Gang²

1. College of Electrical Engineering, Sichuan University, Chengdu 610065, China
2. Urumqi Power Supply Company of State Grid Xinjiang Electric Power Company Limited, Urumqi 830000, China

Received:2020-06-24 Online:2020-12-01 Published:2020-12-04
Contact: XU Lixiong
Supported by:
State Grid Corporation of China Research Program(SGXJWLOOYJJS1801742)

摘要/Abstract

摘要：

信息通信技术的飞速发展促使能源网络和信息网络耦合程度不断加深,为实时需求响应的实施提供了有效的技术支撑。为充分考察信息网络和需求响应技术对综合能源系统可靠性的影响,提出一种计及实时需求响应的能源-信息耦合系统可靠性评估方法。首先,构建综合能源信息物理系统框架并分析其实时需求响应机理;其次,建立信息传输可靠性模型,并采用混合蒙特卡洛法抽样元件状态、生成多时段故障场景;再次,将元件状态变量纳入能量平衡约束,以购能成本、负荷削减成本和需求响应成本最低为目标,建立最优负荷削减模型;然后,提出能源信息物理系统可靠性评估指标及评估流程;最后,通过算例分析了实时需求响应、物理域元件以及信息域元件对可靠性的影响,同时量化分析了物理元件和信息元件在系统中的重要程度。算例结果表明,不同元件对能源信息物理系统可靠性的影响不同,实时需求响应能够有效提升其运行经济性和可靠性;文章所述方法能够有效识别能源信息物理系统物理域和信息域薄弱环节,为其经济运行和强化建设提供参考。

关键词: 综合能源系统, 信息物理融合系统, 实时需求响应, 可靠性评估

Abstract:

With the rapid development of information and communication technologies, the coupling between energy network and information network is deepening, and the implementation of real-time demand response has received effective technical support. In order to find out the impact of information network and demand response technologies on the reliability of integrated energy system, this paper proposes a reliability assessment method for energy-information coupled system taking into account real-time demand response. Firstly, the framework of integrated energy cyber physical system (CPS) and its real-time demand response mechanism are introduced. Secondly, considering the reliability model for information transmission, the hybrid Monte Carlo method is used for component states simulation and multi-period failure scenarios simulation. Thirdly, the state variables of components are incorporated into the energy balance constraints and optimal load reduction model with the objective of minimizing the costs of energy purchase, load reduction and demand response is established. Then, the reliability assessment indices and evaluation process of integrated energy cyber physical system are proposed. Finally, the effect of real-time demand response, physical domain components and information domain components on reliability is analyzed, and the importance of physical components and information components is quantified. The results show that different components have different effects on the reliability of integrated energy CPS and real-time demand can effectively improve its operating economy and reliability; the method proposed can effectively identify weak links in the physical domain and information domain of energy CPS. The results can provide a reference for the economic operation and enhancement construction of energy CPS.

Key words: integrated energy system, cyber physical system, real-time demand response, reliability assessment

中图分类号:

TM73

王澜灵, 刘俊勇, 许立雄, 贺心达, 唐杰, 房钢. 计及实时需求响应的综合能源信息物理系统可靠性分析[J]. 电力建设, 2020, 41(12): 25-40.

WANG Lanling, LIU Junyong, XU Lixiong, HE Xinda, TANG Jie, FANG Gang. Reliability Analysis of Integrated Energy Cyber Physical System Considering Real-Time Demand Response[J]. ELECTRIC POWER CONSTRUCTION, 2020, 41(12): 25-40.

图/表 31

图1 综合能源CPS结构

Fig.1 The architecture of an integrated energy cyber physical system

图2 信息元件连接拓扑图

Fig.2 Topology diagram of information element connection

图3 综合能源CPS可靠性评估流程

Fig.3 Reliability assessment process of IECPS

图4 综合能源系统物理层架构

Fig.4 Physical framework of the integrated energy system

表1 能源CPS研究场景

Table 1 Different scenarios of integrated energy cyber physical system

表2 不同场景下供能可靠性指标

Table 2 Energy supply reliability index under different scenarios

表3 信息系统故障影响占比

Table 3 Proportion of information system failures%

图5 供电重要度指标

Fig.5 Power supply importance index

图6 供热重要度指标

Fig.6 Heat supply importance index

图7 供冷重要度指标

Fig.7 Cooling importance index

图8 综合供能重要度指标

Fig.8 Importance index of integrated energy supply

图9 不同场景年平均成本

Fig.9 Annual average costs for different scenarios

图10 元件故障率影响

Fig.10 Impact of component failure rate

图11 缺供能量贡献率分析

Fig.11 Analysis of contribution rate of energy shortage

表4 不同负载率下的供能可靠性指标

Table 4 Energy supply reliability index under different load factor

表 A1 能源转换装置参数

Table A1 Energy conversion device parameters

表 A2 储能装置参数

Table A2 Energy storage device parameters

表 A3 上级电网气网参数

Table A3 Superior grid parameters and gas network parameters

表 A4 能源CPS元件可靠性参数

Table A4 Reliability parameters of energy CPS components

图 A1 分布式电源典型日出力

Fig.A1 Typical daily power output of distributed generation

图 A2 春季负荷系数

Fig.A2 Load factor of Spring

图 A3 夏季负荷系数

Fig.A3 Load factor of Summer

图 A4 秋季负荷系数

Fig.A4 Load factor of Fall

图 A5 冬季负荷系数

Fig.A5 Load factor of Winter

图 A6 信息元件连接拓扑图

Fig.A6 Information element connection topology diagram

图 B1 场景1供能重要度指标

Fig.B1 Energy supply importance index of scenario 1

图 B2 场景3供能重要度指标

Fig.B2 Energy supply importance index of scenario 3

图 B3 场景4供能重要度指标

Fig.B3 Energy supply importance index of scenario 4

图 B4 场景1和3年平均成本

Fig.B4 Annual average costs for scenario 1 and 3

图 B5 通信线路故障率灵敏度分析

Fig.B5 Sensitivity analysis of communication line failure rate

表 B1 交换机和信息终端备份前后供能可靠性指标

Table B1 Energy supply reliability index of switches and information terminals

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计及实时需求响应的综合能源信息物理系统可靠性分析

Reliability Analysis of Integrated Energy Cyber Physical System Considering Real-Time Demand Response

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