Method for control the mechanical parameters of overhead power lines based on improved inclinometry

Structural elements of overhead power transmission lines are experiencing both horizontal and vertical loads. Wires and cables are elements of the overhead power line, on which changes in mechanical loads are observed to a greater degree. This occurs due to the change in the tension force of the wire/cable depending on the temperature and the formation of icy-rime deposits on it, as well as fluctuations in wind gusts. The article describes the most common systems and methods for determining the mechanical loads on an overhead power transmission line. A method is proposed for calculating the mechanical loads on an overhead transmission line based on mathematical models of a flexible wire, rope and a model for determining ice deposits on wires, taking into account the rotation of the wire/cable around its axis. A comparison of the improved inclinometry method with the method developed earlier for the case of formation of ice deposits on the S-50 cable has been carried out. A comparison was made on the error in determining the tension of the S-50 ground-wire protection cable using the method developed to control the mechanical parameters of overhead power lines, which takes into account the wire/cable rotation around its axis and the method for determining icy-rime deposits developed earlier. The developed method allows determining the elongation of the wire/cable in the span with one anchor support, as well as the strength of its tension with greater accuracy. However, additional clarification is required due to the influence of the wind, the formation of icy-rime deposits of various shapes, as well as the structural limitations of the wire/cable rotation when attaching it to the support.

1. Bokov G. Tekhnicheskoe perevooruzhenie rossijskih elektricheskih setej. Skol'ko eto mozhet stoit'?.Novosti Elektrotekhniki 2002;24(2).(In Russ).

2. Sacuk EI. Programmno-tekhnicheskie sredstva monitoringa vozdushnyh linij elektroperedachi i upravleniya energosistemoj v ekstremal'nyh pogodnyh usloviyah. [dissertation]. Novocherkassk, 2011. Available at: https://www.dissercat.com/content/programmno-tekhnicheskie-sredstva-monitoringa-vozdushnykh-linii-elektroperedachi-i-upravleni. Accessed: 26 May 2011. (In Russ).

3. Titov DE., Soshinov AG., Shewchenko NJ. Thermodynamic method of glaze ice monitoring on air lines wires. Applied Mechanics and Materials. Trans Tech Publications. 2015; (698):803-807. (In Russ).

4. Kostikov I. Sistema monitoringa «SAT-1» – effektivnaya zashchita VLEP ot gololyoda. Available at: http://www.ruscable.ru/article/sistema_monitoringa_sat_1_effektivnaya_zashhita. Accessed: 25 Jan 2018. (In Russ).

5. Panasenko MV. Analiticheskij obzor sposobov i ustrojstv monitoringa promezhutochnogo proleta vozdushnoj linii elektroperedachi. Mezhdunarodnyj zhurnal prikladnyh i fundamental'nyh issledovanij. 2014; 11. Pt. 4. pp 572 - 576. (In Russ).

6. Otto T. et al. Integrated Microsystems for Smart Applications. Sensors and Materials. 2018; 30(4):767-778.

7. Lindsey KE, Spillane PE, An-Chyun W. Dynamic real time transmission line monitor and method of monitoring a transmission line using the same .PATENT USA. №15725207.2018 .Available at: http://lindsey-usa.com/wp-content/uploads/2015/10/11F-001-TLM-8-2014.

8. Yaroslavsky DA., Sadykov MF. Razrabotka ustrojstva dlya sistemy monitoringa i kolichestvennogo kontrolya gololyodoobrazovaniya na vozdushnyh liniyah elektroperedachi Proceeding of the higher educational institutions. ENERGY SECTOR PROBLEMS. 2017; 19(3-4): 69–79. (In Russ). doi.org/10.30724/1998-9903-2017-19-3-4-69-79.

9. DiLin - a system for monitoring the presence of ice on the wires of overhead lines. Available at: URL: https://dimrus.ru/dilin.html / Accessed: 25 Jan. 2018. (In Russ).

10. Rui X, Ji K. and McClure G. Dynamic response of overhead transmission lines with eccentric ice deposits following shock loads IEEE Transactions on Power Delivery. 2017; 32(3):1287-1294. doi:10.1109/tpwrd.2015.2501029.

11. Minullin RG., Kasimov VA, Filimonova TK, et al. Lokacionnoe obnaruzhenie gololyoda na vozdushnyh liniyah elektroperedachi.Pt1. Sposoby obnaruzheniya gololyoda. Nauchno-tekhnicheskie vedomosti SPbGPU. Informatika. Telekommunikacii. Upravlenie .2014; 2(193):61 - 73. (In Russ).

12. Minullin RG., Kasimov VA, Yarullin MR. Opredelenie tolshchiny ledyanyh otlozhenij na provodnikah vozdushnyh linij elektroperedachi metodom opredeleniya mestopolozheniya .Trudy Mezhdunarodnogo seminara po atmosfernomu obledeneniyu konstrukcii . Кazan , Russia. 2015. P. 101. (In Russ).

13. 13Boshnyakovich AD. Mekhanicheskij raschet provodov i trosov linij elektroperedachi. M.-L.: Gosenergoizdat 1962. (In Russ).

14. Merkin DR. Vvedenie v mekhaniku gibkoj niti. M.: Nauka. Glavnaya redakciya fiziko- matematicheskoj literatury. 1980. (In Russ).

15. Kesel'man LM. Osnovy mekhaniki vozdushnyh linij elektroperedachi .M.: Energoatomizdat, 1992.(In Russ).

16. Glushko MF. Stal'nye pod"emnye kanaty. K.: Tekhnіka, 1966. (In Russ).

17. Goryachev МP, Yaroslavsky DA, Sadykov МF,et al. Metodika kontrolya ledyanogo pokrytiya na vozdushnyh liniyah elektroperedachi s uchetom smeshcheniya s ispol'zovaniem datchikov besprovodnyh kanalov svyazi 2017;12(22):6479- 6482. (In Russ).

18. Dushin EM. Osnovy metrologii i elektricheskie izmereniya 6nd ed. L.: Energoatomizdat. 1987. (InRuss).

19. Yaroslavskij DA. Sistema avtomatizirovannogo monitoringa gololednyh otlozhenij vozdushnyh linij elektroperedach na osnove inklinometrichesko- meteorologicheskogo metoda: Kazan;2017. Available at: https://www.dissercat.com/content/povyshenie-nadezhnosti-selskikh-vozdushnykh-linii-elektroperedachi-10-6-kv-v-usloviyakh-vozd [dissertation]. Accessed: 5 Nov 2017. (In Russ).

20. Sadykov MF., Goryachev MP., Yaroslavskij DA., Ivanov DA, Koryshkin IM. Ustrojstvo operativnogo monitoringa tekhnicheskogo sostoyaniya vysokovol'tnyh linij elektroperedachi Patent RUS.№185311.30.05.2018. Byul № 2018120028.Available at : Deliverability 2015–2018. Accessed: 29 Nov 2018 (In Russ).