DECREASE IN ASYMMETRY AND HARMONIOUS DISTORTIONS IN AREAS OF POWER SUPPLY OF NON-TRACTIVE CONSUMERS

Receipt date: 
28.05.2017
Section: 
Year: 
2017
Journal number: 
УДК: 
621.311
DOI: 

10.26731/1813-9108.2017.3(55).145-151

Article File: 
Pages: 
145
151
Abstract: 

In the electrical networks powering tractive substations of the trunk railroads, as well as in systems of tractive electrical power supply, technologies of intellectual networks are fully applicable (“smart grid” on the basis of which is it possible to effectively solve problems of quality management of the electric power. The problem of using these technologies becomes especially relevant in Eastern Siberia and in the Far East where the main backbone electrical network is directly connected to substations of railway lines. In view of the considerable volume of sharply variable non-linear single-phase tractive loading, electric power quality figures on these networks go far beyond the allowable limits.

For electrical power supply of non-tractive and non-transport customers of the railroads, the power lines executed according to the diagram "two-wire-rail" (TWR) are widely used. These lines are powered from 27,5 kV buses of tractive substations, the power curves of which have the considerable harmonic distortions. Besides, the essential asymmetry is caused by single-phase tractive loading is observed. Thus, on the starting end of the power line of the TWR, figures of the electric power quality can go beyond the tolerable limits. On the receiving end, more considerable deterioration of the electric power is possible because of the asymmetrical diagram of the power line, and also owing to electromagnetic influences of the contact network. Therefore, the problem of improving the electric power quality on the networks powered from TWR lines has special relevance.

The article presents the results of the researches directed to improvement of quality of the electric power in the networks receiving food from the TWR power line on the basis of use of active conditioners of the harmonicas and adjustable sources of jet power executed on FACTS technologies.

List of references: 

1.   Markvardt K.G. Elektrosnabzhenie elektrifitsirovannykh zheleznykh dorog [Electric supply of electrified railways]. Moscow: Transport Publ., 1982, 528 p.

2.   Ratner M.P., Mogilevskii E.L. Elektrosnabzhenie netyagovykh potrebitelei zheleznykh dorog [Electric supply of non-traction railroad consumers]. Moscow: Transport Publ., 1985, 295 p.

3.   Bardushko V.D., Zakaryukin V.P., Kryukov A.V. Printsipy postroeniya sistem elektrosnabzheniya zheleznykh dorog [Principles of construction of power supply systems for railways]. Moscow: Teplotekhnik Publ., 2014, 166 p.

4.   Kryukov A.V., Zakaryukin V.P. Modelirovanie elektromagnitnykh vliyanii na smezhnye LEP na osnove rascheta rezhimov energosistemy v faznykh koordinatakh [Modeling of electromagnetic influences on adjacent transmission lines on the basis of calculation of modes of the power system in phase coordinates]. Irkutsk: ISTU Publ., 2009, 120 p.

5.   Kryukov A.V., Alekseenko V.A. Povyshenie effektivnosti operativnogo upravleniya v sistemakh tyagovogo elektrosnabzheniya [Operational control efficiency increase in traction power supply systems]. Sovremennye tekhnologii. Sistemnyi analiz. Modelirovanie [Modern technologies. System analysis. Modeling], No. 4 (32), 2011, pp. 158–164.

6.   V.P. Zakaryukin et al. Operativnoe upravlenie v sistemakh elektrosnabzheniya zheleznykh dorog [Operational management in power supply systems of railways]. Irkutsk: ISTU Publ., 2012, 129 p.

7.   Kryukov A.V., Zakaryukin V.P., Abramov N.A. Situatsionnoe upravlenie rezhimami sistem tyagovogo elektrosnabzheniya [Situational control of modes of traction power supply systems]. Irkutsk: ISTU Publ., 2010, 123 p.

8.   Kryukov A.V., Cherepanov A.V. Povyshenie kachestva elektroenergii v raionakh elektrosnabzheniya netyagovykh potrebitelei, pitayushchikhsya po liniyam «dva provoda–rel's» [Improving the quality of electricity in the areas of electricity supply of non-traction consumers, powered on the lines "two wire and a rail"]. Transportnaya infrastruktura Sibirskogo regiona [Transport infrastructure of the Siberian region], Vol.2. Irkutsk: ISTU Publ., 2013, pp. 71–76.

9.   Zakaryukin,V.P., Kryukov A.V. Slozhnonesimmetrichnye rezhimy elektricheskikh system [Complexly asymmetric modes of electrical systems]. Irkutsk: Irkut. state. un-ty Publ., 2005, 273 p.

10. Zakaryukin V.P., Kryukov A.V.  Metody sovmestnogo modelirovaniya sistem tyagovogo i vneshnego elektrosnabzheniya zhe-leznykh dorog peremennogo toka [Methods of joint modeling of traction and external power supply systems of railways of alternating current]. Irkutsk: ISTU Publ., 2011, 170 p.

11. Kryukov A.V. (ed.). Modelirovanie avariinykh rezhimov v sistemakh elektrosnabzheniya zheleznykh dorog [Modeling of emergency modes in power supply systems of railways]. Irkutsk: ISTU Publ., 2016, 170 p.

12. Zakaryukin V.P., Kryukov A.V., Sokolov V.Yu. Sistemnyi podkhod k modelirovaniyu mnogoampernykh shinoprovodov [The system approach to the simulation of multi-ampere bus bar ducts]. Sovremennye tekhnologii. Sistemnyi analiz. Modelirovanie [Modern technologies. System analysis. Modeling], 2008, No. 4 (20), pp. 68–73.

13. Kryukov A.V., Zakaryukin V.P., Sokolov V.Yu. Modelirovanie sistem elektrosnabzheniya s moshchnymi tokoprovodami [Modeling of power supply systems with high-power current leads]. Irkutsk: ISTU Publ., 2010, 80 p.

14. Zakaryukin V.P., Kryukov A.V. Modelirovanie mnogoprovodnykh sistem s odnozhil'nymi ekranirovannymi kabelyami [Modeling multi-wire systems with single-core shielded cables]. Sovremennye tekhnologii. Sistemnyi analiz. Modelirovanie [Modern technologies. System analysis. Modeling], 2007, No. 16, pp. 63–66.

15. Kryukov A.V., Zakaryukin V.P., Litvintsev A.I. Interval'nyi metod rascheta rezhimov elektroenergeticheskikh sistem v faznykh koordinatakh [Interval method of calculating the regimes of electric power systems in phase coordinates]. Sistemy. Metody. Tekhnologii [Systems. Methods. Technologies], 2011, No. 9, pp. 54–61.

16. Zakaryukin V.P., Kryukov A.V., Sokolov V.Yu. Modelirovanie mnogoampernykh shinoprovodov [Modeling multi-ampere bus bar ducts]. Problemy energetiki [Problems of power industry], 2009, No. 3–4, p. 65.

17. Zakaryukin V.P., Kryukov A.V. Tokoraspredelenie v provodakh linii elektroperedachi s rasshcheplennymi provodami [Current distribution in wires of power transmission lines with split wires]. Problemy energetiki [Problems of power industry], 2010, No. 1-2, p. 54.

18. Zakaryukin V.P., Kryukov A.V., Le Kong Zan'. Modelirovanie i parametricheskaya identifikatsiya uzlov nagruzki elek-troenergeticheskikh system [Modeling and parametric identification of load nodes of electric power systems]. Irkutsk: INRTU Publ., 2016, 158 p.

19. Kryukov A.V. (ed.). Modelirovanie avariinykh rezhimov v sistemakh elektrosnabzheniya zheleznykh dorog [Modeling of emergency modes in power supply systems of railways]. Irkutsk: ISTU Publ., 2016, 170 p.

20. Zakaryukin V.P., Kryukov A.V., Avdienko I.M. Modelirovanie sistem tyagovogo elektrosnabzheniya, osnashchennykh sim-metriruyushchimi transformatorami [Modeling of traction power supply systems equipped with symmetrical transformers]. Irkutsk: ISTU Publ., 2016, 164 p.