基于时序仿真的商业楼宇交流与直流配电系统能效对比

doi:10.19595/j.cnki.1000-6753.tces.191141

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (3836 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract With the advantage of integrating distributed energy, storage and DC load by higher efficient manner, DC distribution has attracted wide attention of the building electrical industry in recent years. Considering the large amount of commercial buildings and their enormous energy-saving potential, selecting AC or DC distribution is one of the key factors affecting their energy efficiency and operation economy so that it is urgent to carry out energy efficiency comparison between AC and DC distribution systems in buildings. However, the existing study on energy efficiency evaluation of distribution network has not fully considered the particularity of the load type in commercial buildings. The evaluation methods and indicators are not applicable. To address this issue, considering the typical structure and load type of AC and DC distribution in commercial buildings, the piecewise linear efficiency function of converters and dynamic line power loss model are established. Then the energy efficiency evaluation method is proposed based on time sequential simulation and branch power flow calculation. The case studies are conducted based on the demonstration project of DC power distribution in Shenzhen China-US Center. The results show that the load type of commercial buildings has an important influence on the energy efficiency level of AC and DC distribution systems. With the increase of DC load proportion and integration capacity of distributed resources, the energy efficiency advantage of DC distribution systems gradually increases.

Key words： DC distribution energy efficiency evaluation commercial buildings DC power load distributed energy time sequencial simulation

Received: 06 September 2019

PACS:

TM71

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Li Haibo
	Zhao Yuming
	Liu Guowei
	Jiang Shiyong
	Zhao Zhengjia

Cite this article:

Li Haibo,Zhao Yuming,Liu Guowei等. The Time Sequential Simulation Based Energy Efficiency Comparison of AC and DC Distribution Power System in Commercial Buildings[J]. Transactions of China Electrotechnical Society, 2020, 35(19): 4194-4206.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.191141 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I19/4194

[1] 宋强, 赵彪, 刘文华, 等. 智能直流配电网研究综述[J]. 中国电机工程学报, 2013, 33(25): 9-19.
Song Qiang, Zhao Biao, Liu Wenhua, et al.An overview of research on smart DC distribution power network[J]. Proceedings of the CSEE, 2013, 33(25): 9-19.
[2] 周逢权, 黄伟. 直流配电网系统关键技术探讨[J]. 电力系统保护与控制, 2014, 42(22): 62-67.
Zhou Fengquan, Huang Wei.Study on the key technology of DC distribution power network[J]. Power System Protection and Control, 2014, 42(22): 62-67.
[3] 江道灼, 郑欢. 直流配电网研究现状与展望[J]. 电力系统自动化, 2012, 36(8): 98-104.
Jiang Daozhuo, Zheng Huan.Research status and developing prospect of DC distribution network[J]. Automation of Electric Power Systems, 2012, 36(8): 98-104.
[4] 谢少军, 肖华锋, 罗运虎. 直流楼宇技术初议[J]. 电工技术学报, 2012, 27(1): 107-113.
Xie Shaojun, Xiao Huafeng, Luo Yunhu.On DC-building technology[J]. Transactions of China Electrotechnical Society, 2012, 27(1): 107-113.
[5] Alex H, Mariesa L C, Gerald T H, et al.The future renewable electric energy delivery and management system: the energy internet[J]. Proceedings of the IEEE, 2011, 99(1): 133-148.
[6] Kakigano H, Miura Y, Ise T.Low-voltage bipolar-type DC microgrid for super high quality distribution[J]. IEEE Transactions on Power Electronics, 2010, 25(12): 3066-3075.
[7] 胡子珩, 马骏超, 曾嘉思, 等. 柔性直流配电网在深圳电网的应用研究[J]. 南方电网技术, 2014, 8(6): 44-47.
Hu Ziheng, Ma Junchao, Zeng Jiasi, et al.Research on application of flexible DC power distribution system in Shenzhen power grid[J]. Southern Power System Technology, 2014, 8(6): 44-47.
[8] 刘国伟, 赵宇明, 袁志昌, 等. 深圳柔性直流配电示范工程技术方案研究[J]. 南方电网技术, 2016, 10(4): 1-7.
Liu Guowei, Zhao Yuming, Yuan Zhichang, et al.Study on demonstration project technical scheme of VSC-DC distribution system in Shenzhen[J]. Southern Power System Technology, 2016, 10(4): 1-7.
[9] 傅守强, 高杨, 陈翔宇, 等. 基于柔性变电站的交直流配电网技术研究与工程实践[J]. 电力建设, 2018, 39(5): 46-55.
Fu Shouqiang, Gao Yang, Chen Xiangyu, et al.Research and project practice on AC and DC distribution network based on flexible substations[J]. Electric Power Construction, 2019, 39(5): 46-55.
[10] 任春光, 韩肖清, 王鹏, 等. 交直流混合微电网关键技术及其示范工程[J]. 太原理工大学学报, 2017, 48(3): 486-491.
Ren Chunguang, Han Xiaoqing, Wang Peng, et al.Key technology of AC/DC hybrid microgrid and its demonstration project[J]. Journal of Taiyuan University of Technology, 2017, 48(3): 486-491.
[11] 罗志刚, 韦钢, 袁洪涛, 等. 基于区间直觉模糊理论的直流配网规划方案综合决策[J]. 电工技术学报, 2019, 34(10): 2011-2021.
Luo Zhigang, Wei Gang, Yuan Hongtao, et al.Comprehensive decision of DC distribution network planning based on interval intuitionistic fuzzy theory[J]. Transactions of China Electrotechnical Society, 2019, 34(10): 2011-2021.
[12] GB/T 31367—2015 中低压配电网能效评估导则[S]. 2015.
[13] 杨小彬, 李和明, 尹忠东, 等. 基于层次分析法的配电网能效指标体系[J]. 电力系统自动化, 2013, 37(21): 146-150.
Yang Xiaobin, Li Heming, Yin Zhongdong, et al.Energy efficiency index system for distribution network based on analytic hierarchy process[J]. Automation of Electric Power Systems, 2013, 37(21): 146-150.
[14] 吴京锴, 穆云飞, 贾宏杰, 等. 基于能量价值的多能协同园区能源利用效率指标[J]. 电力系统自动化, 2019, 43(21): 54-62.
Wu Jingkai, Mu Yunfei, Jia Hongjie, et al.Energy value based efficiency index of energy utilization for multi-energy cooperative park[J]. Automation of Electric Power Systems, 2019, 43(21): 54-62.
[15] 罗志坤, 刘潇潇, 陈星莺, 等. 变电站能效评估指标体系及建模方法[J]. 电力自动化设备, 2017, 37(3): 132-138.
Luo Zhikun, Liu Xiaoxiao, Chen Xingying, et al.Energy efficiency evaluation index system and modeling method for substation[J]. Electric Power Automation Equipment, 2017, 37(3): 132-138.
[16] 罗耀明, 毛李帆, 姚建刚, 等. 电力用户综合能效评估模型[J]. 电力系统及其自动化学报, 2011, 23(5): 104-109.
Luo Yaoming, Mao Lifan, Yao Jiangang, et al.Evaluation model of integrated energy efficiency for power users[J]. Proceedings of the CSU-EPSA, 2011, 23(5): 104-109.
[17] Fregosi D, Ravula S, Brhlik D, et al, A comparative study of DC and AC microgrids in commercial buildings across different climates and operating profiles[C]// 1st IEEE International Conference in DC Microgrids, Atlanta, USA, 2015: 159-164.
[18] Starke M R, Olbert L M, Ozpineci B.AC vs. DC distribution: a loss comparison[C]// Proceedings of IEEE/PES Transmission and Distribution Conference and Exposition , Bogota, Colombia, 2008: 1-7.
[19] Vossos V, Garbesi K, Shen H.Energy savings from direct-DC in U.S. residential buildings[J]. Energy and Buildings, 2014, 68(A): 223-231.
[20] Gerber D L, Vossos V, Feng W, et al.A simulation-based efficiency comparison of AC and DC power distribution networks in commercial buildings[J]. Applied Energy, 2017, 210(15): 1167-1187.
[21] Noritake M, Yuasa K, Takeda T, et al.Demonstrative research on DC microgrids for office buildings[C]//36^th IEEE International Telecommunications Energy Conference, Vancouver, Canada, 2014: 1-5.
[22] Noritake M, Hoshi H, Hirose K, et al. Operation algorithm of DC microgrid for achieving local production for local consumption of renewable energy [C]//35^th IEEE International Telecommunications Energy Conference, October, 2013, Hamburg, Germany: 1-6.
[23] Weiss R, Ott L, Boeke U.Energy efficient low-voltage DC-grids for commercial buildings[C]//1^st IEEE International Conference on DC Microgrids, Atlanta, USA, 2015: 154-158.
[24] 洪澜, 彭勇刚, 李悦, 等. 计及电力电子变压器的交直流混合配电网能效评估[J]. 电工电能新技术, 2019, 38(2): 72-79.
Hong Lan, Peng Yonggang, Li Yue, et al.Energy efficiency evaluation of AC/DC hybrid distribution network considering power electronic transformers[J]. Advanced Technology of Electrical Engineering and Energy, 2019, 38(2): 72-79.
[25] 曾进辉, 张伯伦, 雷敏, 等. 光伏-混合储能直流微电网能效提升策略研究[J]. 电力电子技术, 2019, 53(3): 78-81.
Zeng Jinhui, Zhang Bolun, Lei Min, et al.Research on energy efficiency improvement strategies of photovoltaic-hybrid energy storage DC microgrid[J]. Power Electronics, 2019, 53(3): 78-81.
[26] 肖朝霞, 李怀民, 朱天丽, 等. 提高船舶微电网艏侧推进器运行能效的控制策略[J]. 电工技术学报, 2018, 33(增刊2): 269-276.
Xiao Zhaoxia, Li Huaimin, Zhu Tianli, et al.Control strategy for improving operation energy efficiency of bow thruster in shipboard microgrid[J]. Transactions of China Electrotechnical Society, 2018, 33(S2): 269-276.
[27] 吴敏. 基于光/储一体化智能逆变器的家庭能效管理策略的研究[J]. 电气技术, 2015, 16(11): 44-47.
Wu Min.The study on home efficiency management strategy based on intelligent inverter with PV/ storage integrated[J]. Electrical Engineering, 2015, 16(11): 44-47.
[28] 陈聪, 沈欣炜, 夏天, 等. 基于?效率的综合能源系统多目标优化调度方法[J]. 电力系统自动化, 2019, 43(12): 60-67.
Chen Cong, Shen Xinwei, Xia Tian, et al.Multi- objective optimal dispatch method for integrated energy system considering exergy efficiency[J]. Automation of Electric Power Systems, 2019, 43(12): 60-67.
[29] 吴晓刚, 侯维祥, 帅志斌, 等. 电动汽车复合储能系统的功率分配优化研究[J]. 电机与控制学报, 2017, 21(11): 110-120.
Wu Xiaogang, Hou Weixiang, Shuai Zhibin, et al.Power distribution optimization for electric vehicles with hybrid energy storage system[J]. Electric Machines and Control, 2017, 21(11): 110-120.
[30] 梅杨, 黄伟超, 刘子毓. 矩阵式隔离型双向AC-DC变换器控制策略[J]. 电工技术学报, 2019, 34(12): 2499-2506.
Mei Yang, Huang Weichao, Liu Ziyu.Bidirectional and isolated AC-DC converter based on reduced matrix converter[J]. Transactions of China Electrotechnical Society, 2019, 34(12): 2499-2506.
[31] 管州, 梅军, 丁然, 等. 基于拓展移相控制的直流配电网模块化多电平直流变压器[J]. 电工技术学报, 2019, 34(13): 2770-2781.
Guan Zhou, Mei Jun, Ding Ran, et al.Modular multilevel DC transformer for DC distribution application based on extended phase-shift control[J]. Transactions of China Electrotechnical Society, 2019, 34(13): 2770-2781.