Voltage control strategy based on adjustment of PV inverters in distribution network

被引:0
作者
Gao P. [1 ]
Wang L. [1 ]
Li L. [1 ]
Xu B. [1 ]
Zhou J. [2 ]
机构
[1] College of Electrical and Electronic Engineering, Shandong University of Technology, Zibo
[2] Electric Power Research Institute, State Grid Shanghai Municipal Electric Power Company, Shanghai
来源
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2019年 / 39卷 / 04期
关键词
Electric inverters; Photovoltaic power station; Power factor; Voltage control;
D O I
10.16081/j.issn.1006-6047.2019.04.028
中图分类号
学科分类号
摘要
High penetration of PV(PhotoVoltaic) power stations in distribution networks may result in reverse power flow and voltage violation. Hence, in order to ensure the safe and stable operation of the power grid, it is necessary to adjust the violating voltage of the access point of PV power station. According to the capacity characteristics and technical specifications of PV inverters, a voltage control scheme using active/reactive power adjustment of PV inverters and the active/reactive power calculation approach of PV inverters are proposed. The proposed voltage control strategy that makes full use of the inverter capacity to adjust voltage is effective and economical. At the same time, the calculation is convenient and does not depend on the load level and distribution of feeders. Simulative results show that the proposed voltage control scheme effectively addresses the voltage violation problem caused by PV power stations. © 2019, Electric Power Automation Equipment Press. All right reserved.
引用
收藏
页码:190 / 196
页数:6
相关论文
共 12 条
[1]  
Liang C., Duan X., Distributed generation and its im-pact on power system, Automation of Electric Power Systems, 25, 12, pp. 53-56, (2001)
[2]  
Liu J., Huang W., Analysis on grid-connectible capacity of distributed PV generation in case of PV generation distribution close to load distribution, Power System Technology, 39, 12, pp. 299-306, (2015)
[3]  
Wei H., Liu J., Gao H., Local voltage control of distributed generations, Electric Power Automation Equipment, 36, 9, pp. 40-45, (2016)
[4]  
Peng Y., Yu Y., Ju P., Et al., Voltage fluctuation analysis method considering uncertainties of power system, Electric Power Automation Equipment, 37, 8, pp. 137-142, (2017)
[5]  
Cai Y., Tang W., Xu O., Et al., Review of voltage research in LV distribution network with high proportion of residential PVs, Power System Technology, 42, 1, pp. 220-229, (2018)
[6]  
Cai Y., Zhang L., Tang W., Et al., A voltage control strategy for LV distribution network with high proportion residential PVs considering reactive power adequacy of PV inverters, Power System Technology, 41, 9, pp. 2799-2808, (2017)
[7]  
Stetz T., Marten F., Braun M., Improved low voltage grid-integration of photovoltaic systems in Germany, IEEE Transactions on Sustainable Energy, 4, 2, pp. 534-542, (2013)
[8]  
Zhao Q., Zhang J., Comprehensive control strategy of active and reactive power for grid-connected inverter, Power Capacitor & Reactive Power Compensation, 38, 5, pp. 154-158, (2017)
[9]  
Cai Y., Tang W., Zhang L., Et al., Multi-mode voltage control in low distribution networks based on reactive power regulation of photovoltaic inverters, Automation of Electric Power Systems, 41, 13, pp. 133-141, (2017)
[10]  
Liu K., Liu Y., Sheng W., Et al., Miximal allowable DG penetration capacity calculation considering voltage constraints, Electric Power Automation Equipment, 36, 6, pp. 81-87, (2016)