Modern method analysis of the stability an electro energetic grid with great load converter power supply system

SPEEDAM 2010 ◽  
2010 ◽  
Author(s):  
Z. Szymanski

2015 ◽  
Vol 9 (1) ◽  
pp. 253-262
Author(s):  
Liu Zhongfu ◽  
Zhang Junxing ◽  
Shi Lixin ◽  
Yang Yaning

As for the wide application of arc suppression coil to the grounding in neutral point of mine high voltage grid, grid leakage fault rules and harmonic characteristics of the neutral point grounding system through arc suppression coil are analyzed, the selective leakage protection program “zero-sequence voltage starts, fifth harmonics of grid zerosequence voltage and zero-sequence current are extracted for phase comparison” is proposed, and corresponding fifth harmonic extraction circuit and power direction discrimination circuit are designed. The experimental results show that the protective principle applies not only to the neutral point insulated power supply system, but also to the power supply system in which neutral point passes arc suppression coil, which can solve selective leakage protection problems under different neutral grounding ways, improving the reliability of selective leakage and guaranteeing the stability of the action value.



2013 ◽  
Vol 846-847 ◽  
pp. 190-194
Author(s):  
Shu Jun Yin ◽  
Xue Ren Li ◽  
Ji Geng Luo

The paper designs a three-phase high voltage power supply system based on active disturbance rejection controller which make single-chip microcomputer ATmega128 as the main control chip and the system improve the stability and control precision of dust removing power. Engineering practice shows that, the DC power supply system has the advantages of convenient operation, high work efficiency, system stability.





Processes ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. 813 ◽  
Author(s):  
Yunfu Qin ◽  
Hongyu Lin ◽  
Zhongfu Tan ◽  
Qingyou Yan ◽  
Li Li ◽  
...  

To ensure the stability of park power supply systems and to promote the consumption of wind/photovoltaic generation, this paper proposes a dispatching optimization model for the park power supply system with power-to-gas (P2G) and peak regulation via gas-fired generators. Firstly, the structure of a park power system with P2G was built. Secondly, a dispatching optimization model for the park power supply system was constructed with a peak regulation compensation mechanism. Finally, the effectiveness of the model was verified by a case study. The case results show that with the integration of P2G and the marketized peak regulation compensation mechanism, preferential power energy storage followed by gas storage had the best effect on the park power supply system, which minimized the clean energy curtailment to 11.18% and the total cost by approximately $120.190 and maximized the net profit by approximately $152.005.



2021 ◽  
Vol 315 ◽  
pp. 03024
Author(s):  
Roman Belyaevsky ◽  
Alexey Gerasimenko

One of the most important areas is to ensure the required reliability of power supply to coal mining enterprises. This problem is associated with the high hazard due to accidents at coal mines. The article discusses approaches to solving the problem of finding the best ways to improve the efficiency of the external power supply system. This makes it possible to increase the reliability of power supply to the coal mines of the Kemerovo region – Kuzbass. On the basis of the information method, an algorithm has been developed that makes it possible to take into account the topology of the electrical network, increasing its reliability. Measures to improve the external power supply of LLC “Mine“ Pervomayskaya” are proposed and substantiated. A feasibility study for the direction of increasing the stability of the structure of the electrical network is presented.



2019 ◽  
Vol 2 (1) ◽  
pp. 8-16 ◽  
Author(s):  
P. A. Khlyupin ◽  
G. N. Ispulaeva

Introduction: The co-authors provide an overview of the main types of wind turbines and power generators installed into wind energy devices, as well as advanced technological solutions. The co-authors have identified the principal strengths and weaknesses of existing wind power generators, if applied as alternative energy sources. The co-authors have proven the need to develop an algorithm for the selection of a wind generator-based autonomous power supply system in the course of designing windmill farms in Russia. Methods: The co-authors have analyzed several types of wind turbines and power generators. Results and discussions: The algorithm for the selection of a wind generator-based autonomous power supply system is presented as a first approximation. Conclusion: The emerging algorithm enables designers to develop an effective wind generator-based autonomous power supply system.





2010 ◽  
Vol 130 (5) ◽  
pp. 289-292 ◽  
Author(s):  
Toshimitsu TANAKA ◽  
Tadatoshi BABASAKI


Sign in / Sign up

Export Citation Format

Share Document