企业光伏系统容量的优化配置
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摘要
随着光伏成本的降低及转换效率的提高,迫切需要合理优化大量安装的光伏发电系统的容量配置,为此提出一种以用能成本最低为目标的全寿命周期企业光伏容量配置的方法。首先分析光伏出力、负荷曲线以及峰谷分时电价三者的时序特性,并指出这是直接影响光伏系统的容量配置关键因素;继而论证峰平电价差也是光伏容量配置的重要影响因素,同时指出增加电价差或推出扶持光伏行业的政策,可有效降低企业投资运营成本;最后以南京地区工业I、II及商业负荷光伏系统容量配置为例进行仿真,验证了所提方法的有效性与实用性。
With reduction of PV costs and improvement of transfer efficiency, it is urgent to reasonably optimize capacity configuration for large numbers of PV power generation systems. This paper proposes a method for life cycle PV capacity configuration of enterprises aiming at the minimum energy consumption cost. The paper firstly analyzes time-sequence characteristics of PV output, load curve and peak-valley TOU price which are considered as the key factor affecting capacity configuration of the PV system. Then the paper demonstrates peak-to-peak price difference is an important factor influencing PV capacity configuration and points out it is able to effectively reduce investment and operating costs of enterprises by increasing electricity price differences or adopting policy of supporting PV industry. Finally by making simulation on capacity configuration of the PV systems of industrial I、II load and commercial load, the paper verifies effectiveness and practicability of the proposed method.
With reduction of PV costs and improvement of transfer efficiency, it is urgent to reasonably optimize capacity configuration for large numbers of PV power generation systems. This paper proposes a method for life cycle PV capacity configuration of enterprises aiming at the minimum energy consumption cost. The paper firstly analyzes time-sequence characteristics of PV output, load curve and peak-valley TOU price which are considered as the key factor affecting capacity configuration of the PV system. Then the paper demonstrates peak-to-peak price difference is an important factor influencing PV capacity configuration and points out it is able to effectively reduce investment and operating costs of enterprises by increasing electricity price differences or adopting policy of supporting PV industry. Finally by making simulation on capacity configuration of the PV systems of industrial I、II load and commercial load, the paper verifies effectiveness and practicability of the proposed method.
引文
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[15] KUMAR Y V P,BHIMASINGU R.Renewable energy basedmicrogrid system sizing and energy management for green buildings[J].Journal of Modern Power Systems and Clean Energy,2015,3(1):1-13.
[16] 杨茂,王少帅,李大勇,等.全寿命周期下考虑环境效益的集中式光伏发电成本-效益分析[J].东北电力大学学报,2018,38(6):21-28.YANG Mao,WANG Shaoshuai,LI Dayong,et al.Optimal allocation of PV and accumulator system based on time-of-use price[J].Journal of Northeast Electric Power University,2018,38(6):21-28.
[17] 吴杰,温晨阳,李珊,等.户用屋顶分布式光伏发电成本效益分析[J].电气技术,2018,19(8):35-38.WU Jie,WEN Chenyang,LI Shan,et al.Cost-benefit analysis of distributed photovoltaic power generation for residential roofs[J].Electrical Engineering,2018,19(8):35-38.
[18] ZHANG S X,CHENG H Z,ZHANG L B,et al.Probabilistic evaluation of available load supply capability for distribution system[J].IEEE Transaction on Power Systems,2013,28(3):3215-3225.
[2] 程向文,詹雄铿,李钙.不同运营模式下光伏发电经济效益[J].广东电力,2017,30(8):11-19.CHENG Xiangwen,ZHAN Xiongkeng,LI Gai.Economic benefit of photovoltaic generation under different operation patterns[J].Guangdong Electric Power,2017,30(8):11-19.
[3] 吴杰,温晨阳,李珊,等.基于分时电价的光伏-储能系统容量优化配置[J].电工电能新技术,2018,37(1):23-30.WU Jie,WEN Chenyang,LI Shan,et al.Optimal allocation of PV and accumulator system based on time-of-use price[J].Advanced Technology of Electrical Engineering and Energy,2018,37(1):23-30.
[4] 阮启运,黄炜.考虑季节性分时电价策略对分布式光伏消纳的影响[J].电工技术,2017,9(2):16-19.RUAN Qiyun,HUANG Wei.Considering the influence of the seasonal price strategy on distributed photovoltaic accommodation[J].Electric Engineering,2017,9(2):16-19.
[5] 周楠,刘念,张建华.考虑多种上网价格规制的光伏微网运营对比研究[J].电力建设,2016,37(3):82-89.ZHOU Nan,LIU Nian,ZHANG Jianhua.PV-based microgrid operation contrastive research considering on-grid power tariff regulation[J].Electric Power Construction,2016,37(3):82-89.
[6] HAFEZ O,BHATTACHARYA K.Optimal planning and design of a renewable energy based supply system formicrogrids[J].Renewable Energy,2015(45):7-15.
[7] 张子奇,郭彬,潘月,等.陕西省典型行业日负荷曲线拟合方法[J].陕西电力,2014,42(5):61-64.ZHANG Ziqi,GUO Bin,PAN Yue,et al.Typical industry daily load curve fitting method in Shaanxi Province[J].Shaanxi Eletric Power,2014,42(5):61-64.
[8] 邓少平,康慨,叶别健,等.屋顶分布式光伏发电项目经济容量研究[J].太阳能,2017,37(11):18-24.DENG Shaoping,KANG Kai,YE Biejian,et al.Research on economic capacity of roof distributed photovoltaic power generation project[J].Solar Energy,2017,37(11):18-24.
[9] 郑凌蔚,刘士荣,周文君,等.并网型可再生能源发电系统容量配置与优化[J].电力系统保护与控制,2014,42(17):31-37.ZHENG Lingwei,LIU Shirong,ZHOU Wenjun,et al.Capacity allocation and optimization of grid connected renewable energy power generation system[J].Power System Protection and Control,2014,42(17):31-37.
[10] 谢东,刘慧,张籍,等.小规模分布式光伏发电系统用户侧经济性分析[J].可再生能源,2015,33(5):736-740.XIE Dong,LIU Hui,ZHANG Ji,et al.Analysis of user side economy of small scale distributed photovoltaic power generation system[J].Renewable Energy,2015,33(5):736-740.
[11] 周良学,张迪.考虑分布式光伏电源与负荷相关性的接入容量分析[J].电力系统自动化,2017,41(4):56-61.ZHOU Liangxue,ZHANG Di.Analysis of access capacity considering dependence between distributed photovoltaic power supply and load[J].Automation of Electric Power Systems,2017,41(4):56-61.
[12] 许文超,范文飞,高君,等.计及分时电价的光伏发电置信容量评估[J].电力工程技术,2016,40(8):2273-2280.XU Wenchao,FAN Wenfei,GAO Jun,et al.Confidence capacity assessment of photovoltaic generation considering hourly price[J].Electric Power Engineering Technology,2016,40(8):2273-2280.
[13] 王洪坤,葛磊蛟,李宏伟.分布式光伏发电的特性分析与预测方法综述[J].电力建设,2017,38(7):1-9.WANG Hongkun,GE Leijiao,LI Hongwei.A review on characteristic analysis and prediction method of distributed PV[J].Electric Power Construction,2017,38(7):1-9.
[14] WANG H,HUANG J.Joint investment and operation ofmicrogrid[J].IEEE Transactions on Smart Grid,2017,8(2):833-845.
[15] KUMAR Y V P,BHIMASINGU R.Renewable energy basedmicrogrid system sizing and energy management for green buildings[J].Journal of Modern Power Systems and Clean Energy,2015,3(1):1-13.
[16] 杨茂,王少帅,李大勇,等.全寿命周期下考虑环境效益的集中式光伏发电成本-效益分析[J].东北电力大学学报,2018,38(6):21-28.YANG Mao,WANG Shaoshuai,LI Dayong,et al.Optimal allocation of PV and accumulator system based on time-of-use price[J].Journal of Northeast Electric Power University,2018,38(6):21-28.
[17] 吴杰,温晨阳,李珊,等.户用屋顶分布式光伏发电成本效益分析[J].电气技术,2018,19(8):35-38.WU Jie,WEN Chenyang,LI Shan,et al.Cost-benefit analysis of distributed photovoltaic power generation for residential roofs[J].Electrical Engineering,2018,19(8):35-38.
[18] ZHANG S X,CHENG H Z,ZHANG L B,et al.Probabilistic evaluation of available load supply capability for distribution system[J].IEEE Transaction on Power Systems,2013,28(3):3215-3225.