|Table of Contents|

Influence of Distributed PV Systems on Voltage in DistributionNetwork and Countermeasure of Voltage Beyond Limits(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2017年03期
Page:
15-
Research Field:
电气与电子工程
Publishing date:

Info

Title:
Influence of Distributed PV Systems on Voltage in DistributionNetwork and Countermeasure of Voltage Beyond Limits
Author(s):
Chen Lianger; Wang Enrong; Wang Qi; Lin Wanjun; Ju Jiaqi
School of Electrical and Automation Engineering,Nanjing Normal University,Nanjing 210042,China
Keywords:
distributed photovoltaic; distribution network; voltage beyond limits; influence factor; reactive power control
PACS:
TM615
DOI:
10.3969/j.issn.1672-1292.2017.03.003
Abstract:
With the large scale distributed photovoltaic systems connected to the grid,the voltage problem of distribution network becomes one of the biggest challenges in the development of distributed photovoltaic. Taking the radial distribution network as the research object,from the viewpoint of voltage drop in power grid,the paper studies the voltage variation of distribution network before and after the connection of photovoltaic systems to distribution network. The influences of connecting single photovoltaic system and multi photovoltaic systems to distribution network on voltage of distribution network are analyzed respectively. The factors that affect the distribution network voltage distribution are discussed,including the access capacity,access location,load size,operation mode and access mode. The theoretical analysis is verified by America PG&E69 nodes system,and the obtained conclusions are as follows:the photovoltaic systems increase the line voltage and the voltage variation is directly related to the distribution of loads and the output of photovoltaic systems. Meanwhile,the countermeasure of voltage beyond limits in distribution network is put forward. The countermeasure can make full use of the residual capacity of the inverter to absorb reactive power,and solve effectively the problem of voltage beyond limits caused by distributed photovoltaic systems connected to the grid.

References:

[1] 丁明,王伟胜,王秀丽,等. 大规模光伏发电对电力系统影响综述[J]. 中国电机工程学报,2014,34(1):1-14.
DING M,WANG W S,WANG X L,et al. A review on the effect of large-scale PV generation on power systems[J]. Proceedings of the CSEE,2014,34(1):1-14.(in Chinese)
[2]周孝信,鲁宗相,刘应梅,等. 中国未来电网的发展模式和关键技术[J]. 中国电机工程学报,2014,34(29):4 999-5 008.
ZHOU X X,LU Z X,LIU Y M,et al. Development models and key technologies of future grid in China[J]. Proceedings of the CSEE,2014,34(29):4 999-5 008.(in Chinese)
[3]HU B,NONAKA Y,YOKOYAMA R. Influence of large-scale grid-connected photovoltaic system on distribution networks[J]. Automation of electric power systems,2012(3):254-261.
[4]ENSLIN J H R. Network impacts of high penetration of photovoltaic solar power systems[J]. Power and energy society general meeting,2010(10):1-5.
[5]刘健,黄炜. 分布式光伏电源与负荷分布接近条件下的可接入容量分析[J]. 电网技术,2015,39(2):299-306.
LIU J,HUANG W. Analysis on grid-connectible capacity of distributed PV generation in case of PV generation distribution close to load distribution[J]. Power system technology,2015,39(2):299-306.(in Chinese)
[6]刘健,同向前,潘忠美,等. 考虑过电压因素时分布式光伏电源的准入容量[J]. 电力系统保护与控制,2014,42(6):45-51.
LIU J,TONG X Q,PAN Z M,et al. The maximum power of distributed PV generation according to over-voltage in distribution network[J]. Power system protection and control,2014,42(6):45-51.(in Chinese)
[7]曹哲,刘波,袁智强. 高密度分布式光伏发电系统接入配电网准入容量研究[J]. 电网与清洁能源,2014,30(11):118-122.
CAO Z,LIU B,YUAN Z Q. Research on the maximum penetration level of multiple distributed PV generation[J]. Power system and clean energy,2014,30(11):118-122.(in Chinese)
[8]姜楠,王琦,王恩荣,等. 分布式光伏电源接入对配电网可靠性的影响研究[J]. 南京师范大学学报(工程技术版),2016,16(2):1-9.
JIANG N,WANG Q,WANG E R,et al. Research on influence of the distributed photovoltaic supply on distributed network reliability[J]. Journal of Nanjing normal university(engineering and technology edition),2016,16(2):1-9.(in Chinese)
[9]赵波,张雪松,洪博文. 大量分布式光伏电源接入智能配电网后的能量渗透率研究[J]. 电力自动化设备,2012,32(8):95-100.
ZHAO B,ZHANG X S,HONG B W. Energy penetration of large-scale distributed photovoltaic sources integrated into smart distribution network[J]. Electric power automation equipment,2012,32(8):95-100.(in Chinese)
[10]TONKOSKI R,TURCOTTE D,EL-FOULY T H M. Impact of high PV penetration on voltage profiles in residential neighborhoods[J]. IEEE transactions on sustainable energy,2012,3(3):518-527.
[11]李恒真,谢志文,吴树鸿,等. 分布式发电电压协调控制策略研究[J]. 南京师范大学学报(工程技术版),2016,16(4):28-33.
LI H Z,XIE Z W,WU S H,et al. Research on autonomous control strategies for distributed generation voltage[J]. Journal of Nanjing normal university(engineering and technology edition),2016,16(4):28-33.(in Chinese)
[12]李清然,张建成. 含分布式光伏电源的配电网电压越限解决方案[J]. 电力系统自动化,2015,39(22):117-123.
LI Q R,ZHANG J C. Solutions of voltage beyond limits in distribution network with distributed photovoltaic generators[J]. Automation of electric power systems,2015,39(22):117-123.(in Chinese)
[13]周林,晁阳,廖波,等. 低压网络中并网光伏逆变器调压策略[J]. 电网技术,2013,37(9):2 427-2 432.
ZHOU L,CHAO Y,LIAO B,et al. A voltage regulation strategy by grid-connected PV inverters in low-voltage networks[J]. Power system technology,2013,37(9):2 427-2 432.(in Chinese)

Memo

Memo:
-
Last Update: 2017-09-30