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考虑电热耦合的交直流微电网多目标优化配置
作者:
作者单位:

1.现代电力系统仿真控制与绿色电能新技术教育部重点实验室(东北电力大学),吉林省吉林市 132012;2.郑州大学电气工程学院,河南省郑州市 450001

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基金项目:

国家自然科学基金资助项目(51307020);吉林省科技发展计划资助项目(20160204004GX)。


Multi-objective Optimal Configuration of AC/DC Microgrid Considering Electricity/ Heat Coupling
Author:
Affiliation:

1.Key Laboratory of Modern Power System Simulation and Control &2.Renewable Energy;3.Technology, Ministry of Education (Northeast Electric Power University), Jilin 132012, China;4.School of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China

Fund Project:

This work is supported by National Natural Science Foundation of China (No. 51307020) and Project of Science and Technology Development Plan of Jilin Province (No. 20160204004GX).

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    摘要:

    在当前电热联系日渐紧密以及交直流微电网日益成熟的发展趋势下,以投资成本、CO2排放量以及换流损耗最小为优化目标,综合考虑微电网电/热功率平衡、自治能力等多种约束,提出了考虑电热耦合的交直流混合微电网电/热源双层优化配置模型。其上层为微电网内的各设备容量配置模型,下层是对微电网内各设备运行策略的确定,通过上下层的联合优化对微电网内各设备容量进行配置研究。对比不同规划场景,分析电热耦合对优化目标的影响,通过全年的设备出力和典型日的功率平衡曲线,说明了含电热耦合的交直流微电网供电/热的可靠性,最终验证了所述模型的合理性和有效性。

    Abstract:

    With the development trend of the increasingly close electricity-heat connection and the maturity of AC/DC microgrid, a bi-level optimal configuration model considering electricity/heat coupling for AC/DC hybrid microgrid is proposed. This model takes the annual investment cost, annual CO2 emission and transmission loss as the optimization objectives with giving consideration of the electric/heat power balance, self-government and other operational constraints as well. The upper layer is the capacity planning model of each device in the microgrid, and the lower layer determines the operation strategy of each device in the microgrid. Through the joint optimization of the upper and lower levels, the capacity configuration of each device in the microgrid is studied. By comparing different planning scenarios, the influence of electricity/heat coupling system on optimization objectives is analyzed. Through equipment power output and power balance curve of typical days, the energy supply reliability of AC/DC microgrid with electricity/heat coupling system is illustrated. Finally, the rationality and effectiveness of the model are verified.

    表 1 不同场景下的Pareto最优解集折中解Table 1 Compromise solution of Pareto optimal solutions in different scenarios
    图1 电热耦合交直流混合微电网模型Fig.1 AC/DC hybrid microgrid model with electricity/heat coupling
    图2 双层优化模型流程图Fig.2 Flow chart of bi-level optimization model
    图3 微电网不同场景下规划方案Pareto前沿Fig.3 Pareto frontier of planning schemes of microgrid in different scenarios
    图4 不同场景下所选规划方案比较Fig.4 Comparison of planning strategies in different scenarios
    图 微电网双层优化配置算法流程图Fig. Flow chart of two-stage optimization algorithm for microgrid system
    图 微电网四季典型日电/热负荷数据Fig. Typical daily electricity/heat load data of microgrid for four seasons
    图 微电网四季典型日风速/太阳辐照数据Fig. Typical daily wind speed/solar radiation data of microgrid for four seasons
    图 不同微电网4种规划场景全年换流损耗对比Fig. Annual energy exchanged loss comparison in four planning scenarios of different microgrids
    图 场景4下微电网冬季典型日电/热功率平衡曲线: (a) 交流母线侧 (b) 直流母线侧 (c) 热母线侧Fig. Microgrid electricity/heat balance of winter typical day under scenario 4: (a) AC bus (b) DC bus (c) heat bus
    表 3 Table 3
    表 2 Table 2
    表 4 Table 4
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引用本文

杨冬锋,姜超,蔡国伟,等.考虑电热耦合的交直流微电网多目标优化配置[J/OL].电力系统自动化,http://doi.org/10.7500/AEPS20190731014.
YANG Dongfeng,JIANG Chao,CAI Guowei,et al.Multi-objective Optimal Configuration of AC/DC Microgrid Considering Electricity/ Heat Coupling[J/OL].Automation of Electric Power Systems,http://doi.org/10.7500/AEPS20190731014.

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  • 收稿日期:2019-07-31
  • 最后修改日期:2020-01-20
  • 录用日期:2019-09-09
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