电工技术学报  2016, Vol. 31 Issue (21): 46-56    DOI:
电力系统及其自动化 |
基于长期运行模拟的独立型微网规划方案动态评估
曹晓宇,王建学,张忠,成宏亮
陕西省智能电网重点实验室西安交通大学电气工程学院 西安 710049
Dynamic Assessment of Stand-Alone Microgrid Planning Using Long-Term Simulation
Cao Xiaoyu,Wang Jianxue,Zhang Zhong,Cheng Hongliang
Shanxi Key Laboratory of Smart Grid School of Electrical Engineering Xi’an Jiaotong University Xi’an 710049 China
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摘要 为了评估独立型微网对于运行条件逐年动态变化的适应度,提出一种基于长期运行模拟的微网规划方案动态评估方法。首先建立动态评估的多时间尺度理论框架,并从可靠性、经济性、高效性、环保性等多个方面构建方案评估的指标体系。然后提出适应动态评估的长期运行模拟方法,在全寿命周期层面通过动态模型模拟外部环境与内部结构因素的逐年变化,在年运行层面通过序贯蒙特卡洛法模拟短期不确定性因素的随机变化。针对独立型风光柴储微网算例,通过与国际常用微网规划软件HOMER的结果对比,验证所提方法的正确性和有效性。算例结果表明,所提动态评估方法可以在不同场景下得到规划方案的综合指标结果和时序指标集,比静态评估更加全面、灵活,能够为微网规划及其扩展方案的制定提供科学合理的依据。
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关键词 独立型微网动态评估长期运行模拟多时间尺度    
Abstract:In order to assess the adaptability of stand-alone microgrid (MG) to the annually varied operation condition,a dynamic assessment approach for MG planning based on long-term simulation is proposed.Primarily,a multiple-time theoretical framework of dynamic assessment is established,while an index system is constructed to assess the reliability,efficiency,cost,and environmental benefits of the planning schemes.Subsequently,a novel long-term simulation method is developed to perform the dynamic assessment.In the proposed simulation method,the annually varied factors concerning external environment and internal structure are simulated by dynamic modeling in the life cycle of MG; and the short-term uncertainties are characterized by sequential Monte Carlo simulation in each year.In the case study of a typical stand-alone microgrid,the validity and effectiveness of the proposed approach is verified by comparing to the results of HOMER,which is commonly used in the MG planning.The proposed approach can provide the assessment results containing the overall indices as well as the time-sequencing index sets of planning schemes in different scenarios,which is more comprehensive and flexible than the conventional static assessment.Thus it can be utilized to facilitate the decision of MG planning and generation expansion.
Key wordsStand-alone microgrid    dynamic assessment    long-term simulation    multiple time frames   
收稿日期: 2015-06-09      出版日期: 2016-11-21
PACS: TM715  
基金资助:国家自然科学基金(51577146)和陕西省自然科学基础研究计划(2016JM5072)资助项目。
作者简介: 曹晓宇 男,1990年生,博士研究生,研究方向为分布式发电系统和微电网的规划与运行。E-mail:cxykeven2013@stu.xjtu.edu.cn王建学 男,1976年生,教授,博士生导师,研究方向为电力系统规划与运行、新能源与分布式发电、电力市场等。E-mail:jxwang@mail.xjtu.edu.cn(通信作者)
引用本文:   
曹晓宇,王建学,张忠,成宏亮. 基于长期运行模拟的独立型微网规划方案动态评估[J]. 电工技术学报, 2016, 31(21): 46-56. Cao Xiaoyu,Wang Jianxue,Zhang Zhong,Cheng Hongliang. Dynamic Assessment of Stand-Alone Microgrid Planning Using Long-Term Simulation. Transactions of China Electrotechnical Society, 2016, 31(21): 46-56.
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