System Sensor Elements Analysis and Identification of the Weak Units in the Generator Voltage System
DOI:
https://doi.org/10.14529/power190408Keywords:
electric power plants, auxiliary needs, operating characteristics, dynamical stability, self-starting of motor, short circuits, sensor elementsAbstract
Large industrial enterprises use own electrical and thermal energy sources in addition to external power systems. Therefore, ensuring the stable operation of both the auxiliary power plants supply mechanisms and the main technological equipment of an enterprise is an important task in the electric networks design and reconstruction. The reliability of the power supply system can be carried out in various ways, one of which is the identification and analysis of sensory (sensitive) circuit elements in order to further eliminate weak units. Thus, the paper considers a complex generator voltage network of an industrial enterprise that is connected to the system through high and extra high voltage substations. This network features thermal power plants with auxiliary and high-voltage industrial consumers of the enterprise and pumping stations. A series of electromechanical transients calculations was performed in the simulation of short circuits in the network using KATRAN 10.0 software package to identify the sensory elements of the circuit. Based on the results of the calculation, the stability of synchronous and asynchronous motors is estimated by determining the level of their operational parameters deviation. Based on the calculation results, it is concluded that the power plant mechanisms of auxiliary needs have the highest sensitivity, and the maximum deviation of the mode parameters is achieved during short circuits at high voltage levels. Analyzing the sensor elements of the system allows for the higher reliability of the industrial enterprise power supply system with strong disturbances in the network.
References
Kondrashova Y.N., Gazizova O.V., Malapheev A.V. Increasing the Efficiency of Power Resource Mana-gement as a Solution of Issues of the Power Supply System Stability. Proceedia Engineering, 2015, no. 128,
pp. 759–763. DOI: 10.1016/j.proeng.2015.12.100
Malafeev A.V., Bulanova O.V., Rotanova Yu.N. [Research of Dynamical Stability of Industrial Power Sys-tems with Own Power Stations at Separation From the Electric System in the Result of Short-Circuit Failure].
Bulletin of the South Ural State University. Ser. Computer Technologies, Automatic Control, Radio Electronics, 2008, no. 17 (117), pp. 72–74. (in Russ.)
Udalov S.N., Achitaev A.A., Yumanov M.S. [Research of Operation Modes of Wind Power Installation on the Basis of Electromagnetic Transmission as a Part of Autonomous System of Electric Power Supply]. Elektro. Elektrotekhnika, elektroenergetika, elektrotekhnicheskaya promyshlennost' [Electro. Electrical Engineering, Power Industry, Electrotechnical Industry], 2015, no. 5, pp. 32–35. (in Russ.)
Gazizova O.V., Musin D.A., Malafeev A.V., Kondrashova Yu.N. [Study on Electromechanical Transient Modes to Separate Work Site Acting Industrial Works]. Energeticheskie i elektrotekhnicheskie sistemy [Energy And Electrotechnical Systems], 2015, no. 1, pp. 143–152. (in Russ.)
Gazizova O.V., Malafeyev A.V., Kondrashova Yu.N. Determination of Limit Mode Parameters to Ensure Successful Resynchronization of Distributed Generation Units at Iron and Steel Works. Bulletin of the South Ural State University. Ser. Power Engineering, 2016, vol. 16, no. 4, pp. 12–22. (in Russ.) DOI: 10.14529/power160402
Kruzhilina I.E., Gazizova O.V., Malafeev A.V., Grinchak E.A. [Analysis of Transition Modes of Asynchro-nous Engines during the Electric Power Station on the Separated Work with Energy System]. Elektrotekhnicheskie sistemy i kompleksy [Electrotechnical Systems and Complexes], 2012, no. 20, pp. 183–187. (in Russ.)
Bulanova O.V., Malafeev A.V., Rotanova Yu.N., Tarasov V.M. [Analysis of Transitional Modes of Electri-cal Supply Systems of Industrial Enterprises Having in Their Composition the Objects of Small Energy]. Promysh-lennaya energetika [Industrial Energy], 2010, no. 4, pp. 22–28. (in Russ.)
Igumenshchev V.A., Malafeev A.V., Rotanova YU.N., Ryazanova M.V. [Study of Dynamic Stability in
the Power Supply system of LLC MMK for Various Configurations of Distribution Networks during Short Circuits using the Example of a Thermal Power Plant of LLC MMK]. Optimizaciya rezhimov raboty elektrotekhnicheskih sistem [Optimization of Operating Modes of Electrical Systems], 2008, no. 1, pp. 51–56. (in Russ.)
Xiufeng, Shi. Research on Measures to Improve Stability of the Power System. Applied Mechanics and Materials, 2015, no. 742, pp. 648–652. DOI: 10.4028/www.scientific.net/amm.742.648
Kondrashova Yu.N., Gazizova O.V., Gladysheva I.M., Galliulin I.M. [Research of Influence of Imple-mentation of the Perspective Air-Line on Modes of the Industrial Energetic Hub]. Mezhdunarodnyy nauchno-issledovatel'skiy zhurnal [International Research Journal], 2014, no. 4-2 (23), pp. 35–37. (in Russ.)
Malafeev A.V., Gazizova O.V., Kochkina A.V., Grinchak E.A. [Generator Static Stability Analysis]. Glavnyy energetic [Chief Power Engineer], 2013, no. 7, pp. 17–25. (in Russ.)
Caiqin S., Guang R., Chengjun S. Analyzing and Simulating Dynamic Stability of Large Marine Power Station Systems. 2008 7th World Congress on Intelligent Control and Automation, Chongqing, 25–27 June 2008, pp. 122–128. DOI: 10.1109/wcica.2008.4594252
Fei Ding, Kenneth A. Loparo. Dynamic Modeling and Stability Analysis of Grid-Connected and Autono-mous Distributed Generation System. 2015 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT), Washington, 18–20 Feb. 2015, pp. 58–66. DOI: 10.1109/isgt.2015.7131896
Igumenshchev V.A., Malafeev A.V., Bulanova O.V., Rotanova YU.N. [Calculation of Dynamic Charac-teristics of Synchronous and Asynchronous Motors of Industrial Enterprises in Order to Analyze the Stability of Power Supply Systems]. Vestnik Magnitogorskogo gosudarstvennogo tekhnicheskogo universiteta im. G.I. Noso-va [Reporter of Nosov Magnitogorsk State Technical University], 2006, no. 2, pp. 71–75. (in Russ.)
Igumenshchev V.A., Zaslavec B.I., Nikolaev N.A., Malafeev A.V., Bulanova O.V., Kondrashova Yu.N., Panova E.A. [Evaluating the Effectiveness of Relaying Networks in Complex Systems of 110–220 kV Power Supply of Industrial Enterprises with their Own Power Plants], Magnitogorsk, Nosov Magnitogorsk State Technical University, 2011. 141 p. (in Russ.)
Harikrishna D. Srikanth N.V. Dynamic Stability Enhancement of Power Systems Using Neural-Network Controlled Static-Compensator. TELKOMNIKA, 2012, no. 10, pp. 9–16.
Boudour M., Hellal A. Power System Dynamic Security Mapping Using Synchronizing and Damping Tor-ques Technique. The Arabian Journal for Science and Engineering, 2015, no. 30, pp. 81–94. DOI: 10.1109/iecon.2003.1280077
Nikolaev N.A., Bulanova O.V., Malafeev A.V., Kondrashova Yu.N., Tarasov V.M. [Evaluation of
the Regulating Effect of Remote Load for Determining the Parameters of Installed Modes of Electrical Supply Systems of Industrial Enterprises]. Izvestiya vysshih uchebnyh zavedenij. Elektromekhanika [Proceedings of High-er Educational institutions. Electromechanics], 2011, no. 4, pp. 115–118. (in Russ.)
Karandaev A.S., Khramshin V.R., Evdokimov S.A., Kondrashova Yu.N., Karandaeva O.I. Metodology of Calculation of the Reliability Indexes and Life Time of the Electric and Mechanical Systems. Proceedings of 2014 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS), Tomsk, 16–18 Oct. 2014, pp. 14–21. DOI: 10.1109/meacs.2014.6986866
Voytov O.N., Voropay N.I., Gamm A.Z. et al. [Analysis of Irregularities in Electric Power Systems]. Novo-sibirsk, Nauka. Sibirskaya izdatelskaya firma RAN Publ., 1999. 256 p. (in Russ.)
Naumenko V.D. [Determination of Dangerous to Stability Conditions of Power System Sections]. Avto-maticheskoe upravlenie i protivoavarijnaya avtomatika v krupnyh energoob"edineniyah [Automatic Control and Emergency Control in Large Energy Associations], 1987, pp. 42–45. (in Russ.)
Yuang G., Zaborszky J. The role of the weak cutset in stability monitoring, IFAC Symp. on Power Synt. and Power Plant Control, Tallinn, 10–12 August 1989, pp. 103–107.
Malafeev A.V., Dolganova A.S., Gazizova O.V. [Stability Analysis of Motors of Auxiliary Power Plants at JSC “MMK”]. Glavnyy energetic [Chief Power Engineer], 2012, no. 10, pp. 40–46. (in Russ.)
Malafeev A.V., Tremasov M.A. [Development of Updated Methodology for Calculating Torque-Speed Characteristics of Thermal Power Plant Feed Pump in The Problem of Auxiliary Power Stability Analysis]. El-ektrotekhnicheskie sistemy i kompleksy [Electrotechnical Systems and Complexes], 2014, no. 3, pp. 58–63.
(in Russ.)
Malafeev A.V., Tremasov. M.A. Method for Calculating Torque-Rate Characteristics of Feed Pump in Pumping, Turbining and Return Flow Mode. 2018 International Conference on Industrial Engineering, Applica-tions and Manufacturing (ICIEAM), Moscow, 15–18 May 2018, pp. 224–230. DOI: 10.1109/icieam.2018.8728815
Malafeev A.V., Tremasov M.A. [Analytical Determination of Torque-Speed Characteristics of the Blower Fan of the Thermal Power Plant]. Elektrotekhnicheskie sistemy i kompleksy [Electrotechnical Systems and Com-plexes], 2016, no. 4 (33), pp. 6–13. (in Russ.)
Igumenshchev V.A., Malafeev A.V., Panova E.A., Varganova A.V., Gazizova O.V., Kondrashova Yu.N., Zinov'ev V.V., Yuldasheva A.I., Krubcova A.A., Anisimova N.A., Nasibullin A.T, Tremasov M.A., Shcherba¬kova V.S., Bogush V.K. Kompleks avtomatizirovannogo rezhimnogo analiza KATRAN 10.0 [Complex Automated Mode Analysis KATRAN 10.0]. Certificate of official registration of computer program no. 2019610251. Regis-tered in computer program register 09.01.2019.
