Harmonic characteristics of direct crossing locomotive connected into photovoltaic power grid
Source abstract
Abstract
To investigate the harmonic characteristics of electric locomotives connected to a photovoltaic (PV) power grid based on the actual parameters of a region in Tibet, this paper establishes a simulation model of an electric power grid, including PV and electric locomotive. First, theoretical analysis is conducted to study the harmonic characteristics of electric locomotives and PV power stations. On this basis, we built the MATLAB model to analyze the influence of dynamic working conditions on the locomotive and PV sides on the harmonic characteristics of the power grid. Through the first, second, and third working conditions, a simulation analysis is performed to examine the harmonic characteristics of an electric locomotive when connected to the grid, which includes a PV power source. The results show that the grid side current, including PV and electric locomotive, has a three-phase equilibrium phenomenon, and at the same time, the grid side current harmonic characteristics, including PV and electric locomotive, are mainly reflected in the 17, 19, 21, 23, and 25 frequency odd harmonics.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Railway Systems and Energy Efficiency · Maritime Transport Emissions and Efficiency · Electrical Contact Performance and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Water Conservation and Civil Engineering, Xizang Agricultural and Animal Husbandry University 1 , Nyingchi 860000, China
Electric Power Research Institute of State Grid Xizang Electric Power Co., Ltd. 2 , Lhasa 850000, China
Funding
The Joint School Program of the Department of Natural Science Foundation of Tibet Autonomous Region
References (23)
Show source-provided references
1. Challenges and prospects of building a new power system under the goal of carbon neutrality10.13334/j.0258-8013.pcsee.220467 ↗
2. Summary of research on high order harmonic resonance of electrified railway in China
3. Harmonic problems in new energy grid10.19783/j.cnki.pspc.200113 ↗
4. Design of a proportional integral resonant current controller for locomotive PWM rectifier10.19595/j.cnki.1000-6753.tces.l90079 ↗
5. Influence of electric traction system on power grid harmonic10.1088/1757-899X/533/1/012016 ↗
6. Study on harmonic resonance characteristics of high speed railway traction network under vehicle network coupling10.19595/j.cnki.1000-6753.tces.2013.09.007 ↗
7. Train impedance reshaping method for suppressing harmonic resonance caused by various harmonic sources in trains-network systems with auxiliary converter of electrical locomotive10.1109/access.2019.2958880 ↗
8. Analysis of control methods for the traction drive of an alternating current electric locomotive10.3390/sym14010150 ↗
9. Harmonic resonance suppression strategy of photovoltaic grid connected system considering the influence of transmission line distributed capacitance10.19912/j.0254-0096.2020.01.016 ↗
10. Impact of inverter digital time delay on the harmonic characteristics of grid-connected large-scale photovoltaic system10.1049/iet-rpg.2020.0468 ↗
11. Power quality analysis of a large grid-tied solar photovoltaic system10.1177/1687814020944670 ↗
12. Harmonic resonance suppression method of photovoltaic power station based on induction filtering10.19595/j.cnki.1000-6753.tces.211016 ↗
13. Structure of a photovoltaic electric locomotive10.3844/ajeassp.2019.503.507 ↗
14. Evaluation of power supply capability and quality for traction power supply system considering the access of distributed generations10.1049/iet-rpg.2020.0120 ↗
15. Preliminary study on multiple restrictive factors of photovoltaic access to traction power supply system10.19912/j.0254-0096.2020.08.027 ↗
16. Harmonic interaction and adaptability analysis of photovoltaic access to traction power supply system10.16081/j.issn.1006-6047.2019.04.027 ↗
17. Research on comprehensive optimization control method of photovoltaic power generation system for complex electrified railway traction10.13334/j.0258-8013.pcsee.190919 ↗
18. J. Y. Zhao , “Study on the influence of Sichuan-Tibet Railway on power quality and safety stability of weak power grid in tibet,” Master thesis (Beijing Jiaotong University, 2021).
19. 2014
20. 2009
21. 2016
22. J. R. Liu , “Analysis of harmonic characteristics of photovoltaic power generation system and research on grid-connecting strategy,” Master thesis (Hunan University, 2019).
23. Harmonic characteristics of power generation unit of centralized photovoltaic power station connected to Tibet power grid10.3233/jcm226035 ↗