计及电力电子变压器的交直流混合配电网能效评估
|
摘要
在交直流混合配电网能效评估的研究基础上,依据国家相关标准和参考文献,建立了一套计及电力电子变压器的交直流混合配电网的能效评估体系,整套指标体系包括了交直流混合配电网中的中压配电网、配电变压器和电力电子变压器、低压直流配电网和低压交流配电网4个部分,并结合四个模块各自的静态指标、动态指标和能效指标三个方面进行整体评估。采用熵权法和G-1法从客观和主观两个角度确定各项指标权重,同时结合指标状态值,得出配电网的综合能效分值,从直观角度协助交直流混合配电网能效水平提升。结合三个模拟算例,运用建立的指标体系进行评估,评估结果与实际能效情况一致,验证了评估指标的正确性和评估方法的有效性。
According to the research on the energy efficiency assessment of AC/DC hybrid distribution networks and based on relevant national standards and references, a set of energy efficiency evaluation systems for AC/DC hybrid distribution networks involving power electronic transformers has been established. The whole index system includes four parts, namely, medium-voltage distribution network, distribution transformer and power electronic transformer, low-voltage DC distribution network and low-voltage AC distribution network in the hybrid distribution network. And we also include the static indicators, dynamic indicators and energy efficiency indicators into the assessment. The entropy weight method and G-1 method are used to determine the index weights from both objective and subjective views. Combined with the indicator status values, the comprehensive energy efficiency scores of the distribution network are obtained, which assists the AC/DC hybrid distribution network energy efficiency from an intuitive view. This paper combines three simulation examples and uses the established index system to evaluate the results. The assessment results are consistent with the actual energy efficiency situation, verifying the correctness of the assessment indicators and the effectiveness of the assessment methods.
According to the research on the energy efficiency assessment of AC/DC hybrid distribution networks and based on relevant national standards and references, a set of energy efficiency evaluation systems for AC/DC hybrid distribution networks involving power electronic transformers has been established. The whole index system includes four parts, namely, medium-voltage distribution network, distribution transformer and power electronic transformer, low-voltage DC distribution network and low-voltage AC distribution network in the hybrid distribution network. And we also include the static indicators, dynamic indicators and energy efficiency indicators into the assessment. The entropy weight method and G-1 method are used to determine the index weights from both objective and subjective views. Combined with the indicator status values, the comprehensive energy efficiency scores of the distribution network are obtained, which assists the AC/DC hybrid distribution network energy efficiency from an intuitive view. This paper combines three simulation examples and uses the established index system to evaluate the results. The assessment results are consistent with the actual energy efficiency situation, verifying the correctness of the assessment indicators and the effectiveness of the assessment methods.
引文
[1] 柳琴(Liu Qin).环境保护与建筑节能的相关性研究(Research on the correlation between environmental protection and building energy conservation)[J].建筑节能(Building Energy Efficiency), 2009, 37(3): 56-58.
[2] 王涛(Wang Tao).电网企业降损节能研究(Research on loss reduction and energy saving of power grid enterprises) [D].杭州:浙江大学(Hangzhou: Zhejiang University),2008.
[3] Yang W H, Liu H, Wang Z, et al. Study on evaluation index system of equipment utilization on distribution network [A]. IEEE Innovative Smart Grid Technologies - Asia[C].2012.1-5.
[4] Amin M, Arafat Y, Lundberg S, et al. Low voltage DC distribution system compared with 230 V AC[A].IEEE Electrical Power and Energy Conference[C].2011.340-345.
[5] Gecan C O, Chindri M, Pop G V. Aspects regarding dc distribution systems[J].Analele Univerity din Oradea Fascicula de Energetica, 2009,(15):226-231.
[6] 郭玥, 张红斌, 杨卫红,等(Guo Yue, Zhang Hongbin, Yang Weihong,et al.). 交直流混合配电系统评价体系研究(Study on evaluation system of AC-DC hybrid distribution system)[J]. 电气技术(Electrical Technology), 2015,16(2):49-52,76.
[7] 杨小彬, 李和明, 尹忠东,等(Yang Xiaobin, Li Heming, Yin Zhongdong, et al.). 基于层次分析法的配电网能效指标体系(Distribution network energy efficiency index system based on analytic hierarchy process)[J]. 电力系统自动化, 2013, 37(21):146-150,195.
[8] 尹忠东, 冯寅, 闫凤琴,等(Yin Zhongdong, Feng Yin, Yan Fengqin, et al.). 交直流混合配电网能效综合评价方法(Comprehensive evaluation method for energy efficiency of AC/DC hybrid distribution network)[J]. 电力建设(Power Construction), 2016, 37(5):100-108.
[9] 冯寅(Feng Yin).优质电力园区电能质量治理的综合效益评估(Comprehensive benefit evaluation of power quality control in high-quality electric parks)[D].北京:华北电力大学(Beijing: North China Electric Power University),2017.
[10] 杨小彬(Yang Xiaobin). 含超级电容混合储能装置的直流配电系统能效评估研究(Energy efficiency evaluation of DC distribution system with supercapacitor hybrid energy storage device)[D].北京:华北电力大学(Beijing: North China Electric Power University),2014.
[11] 肖峻,崔艳妍,王建民,等(Xiao Jun, Cui Yanyan, Wang Jianmin, et al.).配电网规划的综合评价指标体系与方法(Comprehensive evaluation index system and method for distribution network planning)[J].电力系统自动化(Automation of Electric Power Systems),2008,32(15):36-40.
[12] 杜栋, 庞庆华, 吴炎(Du Dong, Pang Qinghua, Wu Yan). 现代综合评价方法与案例精选(Modern comprehensive evaluation methods and case selection)[M]. 北京:清华大学出版社(Beijing: Tsinghua University Press), 2015.
[13] 羌丁建,寿挺,朱铁铭,等(Qiang Dingjian, Shou Ting, Zhu Tieming, et al.).高压配电网规划评价指标体系与综合评价模型(High-voltage distribution network planning evaluation index system and comprehensive evaluation model)[J].电力系统保护与控制(Power System Protection and Control),2013,41(21):52-57.
[14] 涂春鸣,肖凡,兰征,等(Tu Chunming,Xiao Fan,Lan Zheng,et al.).微电网中电力电子变压器的电压质量控制策略研究(Research on voltage quality control strategy of power electronic transformer in microgrid)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2018,37(6):1-9.
[15] 王丹,田杰,毛承雄,等(Wang Dan,Tian Jie,Mao Chengxiong,et al.).智能电网中的电子电力变压器:改善电力系统可控性(Electronic power transformers in smart grids: improving power system controllability)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2017,36(5):21-33.
[2] 王涛(Wang Tao).电网企业降损节能研究(Research on loss reduction and energy saving of power grid enterprises) [D].杭州:浙江大学(Hangzhou: Zhejiang University),2008.
[3] Yang W H, Liu H, Wang Z, et al. Study on evaluation index system of equipment utilization on distribution network [A]. IEEE Innovative Smart Grid Technologies - Asia[C].2012.1-5.
[4] Amin M, Arafat Y, Lundberg S, et al. Low voltage DC distribution system compared with 230 V AC[A].IEEE Electrical Power and Energy Conference[C].2011.340-345.
[5] Gecan C O, Chindri M, Pop G V. Aspects regarding dc distribution systems[J].Analele Univerity din Oradea Fascicula de Energetica, 2009,(15):226-231.
[6] 郭玥, 张红斌, 杨卫红,等(Guo Yue, Zhang Hongbin, Yang Weihong,et al.). 交直流混合配电系统评价体系研究(Study on evaluation system of AC-DC hybrid distribution system)[J]. 电气技术(Electrical Technology), 2015,16(2):49-52,76.
[7] 杨小彬, 李和明, 尹忠东,等(Yang Xiaobin, Li Heming, Yin Zhongdong, et al.). 基于层次分析法的配电网能效指标体系(Distribution network energy efficiency index system based on analytic hierarchy process)[J]. 电力系统自动化, 2013, 37(21):146-150,195.
[8] 尹忠东, 冯寅, 闫凤琴,等(Yin Zhongdong, Feng Yin, Yan Fengqin, et al.). 交直流混合配电网能效综合评价方法(Comprehensive evaluation method for energy efficiency of AC/DC hybrid distribution network)[J]. 电力建设(Power Construction), 2016, 37(5):100-108.
[9] 冯寅(Feng Yin).优质电力园区电能质量治理的综合效益评估(Comprehensive benefit evaluation of power quality control in high-quality electric parks)[D].北京:华北电力大学(Beijing: North China Electric Power University),2017.
[10] 杨小彬(Yang Xiaobin). 含超级电容混合储能装置的直流配电系统能效评估研究(Energy efficiency evaluation of DC distribution system with supercapacitor hybrid energy storage device)[D].北京:华北电力大学(Beijing: North China Electric Power University),2014.
[11] 肖峻,崔艳妍,王建民,等(Xiao Jun, Cui Yanyan, Wang Jianmin, et al.).配电网规划的综合评价指标体系与方法(Comprehensive evaluation index system and method for distribution network planning)[J].电力系统自动化(Automation of Electric Power Systems),2008,32(15):36-40.
[12] 杜栋, 庞庆华, 吴炎(Du Dong, Pang Qinghua, Wu Yan). 现代综合评价方法与案例精选(Modern comprehensive evaluation methods and case selection)[M]. 北京:清华大学出版社(Beijing: Tsinghua University Press), 2015.
[13] 羌丁建,寿挺,朱铁铭,等(Qiang Dingjian, Shou Ting, Zhu Tieming, et al.).高压配电网规划评价指标体系与综合评价模型(High-voltage distribution network planning evaluation index system and comprehensive evaluation model)[J].电力系统保护与控制(Power System Protection and Control),2013,41(21):52-57.
[14] 涂春鸣,肖凡,兰征,等(Tu Chunming,Xiao Fan,Lan Zheng,et al.).微电网中电力电子变压器的电压质量控制策略研究(Research on voltage quality control strategy of power electronic transformer in microgrid)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2018,37(6):1-9.
[15] 王丹,田杰,毛承雄,等(Wang Dan,Tian Jie,Mao Chengxiong,et al.).智能电网中的电子电力变压器:改善电力系统可控性(Electronic power transformers in smart grids: improving power system controllability)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2017,36(5):21-33.