Abstract
The paper is devoted to one of the ways to improve the efficiency of industrial power plants management using a software product for calculating and optimizing of their modes. As a rule, the solution of optimization problems is of the deterministic nature; particular problems of control or increasing the efficiency of the functioning of a particular unit or section are solved. The authors of the paper propose an integrated approach to finding the optimal operating modes of a generating electrical installation in order to predict them and determine the best options for a given operating time. The approach is focused on the simultaneous search for optimal operating modes of generators and boilers as well as the composition of the fuel mixture, provided that the cost of fresh steam is minimized, which goes to production and heating extractions as well as electricity generation. When developing the algorithm, the distinctive features of power plant schemes, the possibility of using several types of fuel, the seasonality of operation, as well as the residual resource of the equipment were taken into account. The calculation algorithm is based on the dynamic programming method in combination with the sequential equivalent method and is implemented in the modules of the KATRAN software product. The initial data for the calculation are the technical and economic models of power equipment given in tabular form and reflecting the operational limitations. The results of the research work are intended for the planning services for the operating modes of industrial power supply systems as well as for the technical departments of power plants. The paper provides an example of a calculation under the conditions of an existing power supply system of an industrial enterprise, calculates the optimal operating maps of boilers and power diagrams of generators and predicts possible post-emergency modes of operation of heat and power equipment and their effective load in these conditions.
Keywords
Thermal power plant, turbine generator, power boiler, industrial power center, in-house power generation, secondary energy resources, optimization, energy efficiency, dynamic programming.
1. Varganova A.V. On the Methods of Optimization of Operating Modes of Electric Power Systems and Networks. Vestnik Yuzhno-Uralskogo gosudarstvennogo universiteta [Bulletin of the South Ural State University]. Series: Energy, 2017, vol. 17, no. 3, pp. 76–85. (In Russian)
2. Khramshin T.R., Kornilov G.P., Murzikov A.A., Karandaev A.S. and Khramshin V.R. "Mathematical model of the static reactive power compensator," 2014 International Conference on Actual Problems of Electron Devices Engineering (APEDE), Saratov, 2014, pp. 418-425.
3. Khramshin T.R., Abdulveleev I.R., Kornilov G.P. and Krubcov D.S. "Electromagnetic compatibility of high power STATCOM in asymmetrical conditions," 2015 International Siberian Conference on Control and Communications (SIBCON), Omsk, 2015, pp. 1-6.
4. T. Wang, G. Yuan, L. Zhu and T. Yu, "Reactive power optimization of electric power system incorporating wind power based on Parallel Immune Particle Swarm Optimization," The 26th Chinese Control and Decision Conference (2014 CCDC), Changsha, 2014, pp. 1064-1068, doi: 10.1109/CCDC.2014.6852322.
5. Z. Jinhua, "Optimization Study on Voltage Level and Transmission Capacity," in IEEE Transactions on Power Systems, vol. 24, no. 1, pp. 193-197, Feb. 2009, doi: 10.1109/TPWRS.2008.2008609.
6. Blinov A.Ya. Providing comprehensive measures to improve the technical and economic indicators of the power plant. Energetik [Power engineer], 1975, no. 2, pp. 6-8. (In Russian)
7. Dzobo O. "Virtual power plant energy optimisation in smart grids," 2019 Southern African Universities Power Engineering Conference/Robotics and Mechatronics/Pattern Recognition Association of South Africa (SAUPEC/RobMech/PRASA), Bloemfontein, South Africa, 2019, pp. 714-718.
8. Arakelyan E.K., Kormilitsyn V.I. and Samarenko V.N. Optimization of the CHPP equipment modes taking into account environmental restrictions. Teploenergetika [Thermal Engineering], 1992, no. 2, pp. 29-33. (In Russian)
9. Osika L.K., Zhuravlev V.S. Requirements for virtual models of thermal power plants and tools for their creation. Elektricheskie stancii [Electric power plants], 2014, no. 1(990), pp. 2-8. (In Russian)
10. Donne M.S., Pike A.W. and Savry R. "Application of modern methods in power plant simulation and control," in Computing & Control Engineering Journal, vol. 12, no. 2, pp. 75-84, April 2001, doi: 10.1049/cce:20010205.
11. A. Aminzadeh, A. A. Safavi, A. R. Seifi, "Development of a hybrid simulator of a fossil fuel steam power plant", European Control Conference (ECC) 2003, pp. 1905-1910, 2003.
12. Bondarenko L.V. Methods and models of fuel inventory management at thermal power plants. Izvestia TRTU [Proceedings of TRTU], 2006, no. 15(70), pp. 119-122. (In Russian)
13. Y. Li and R. Li, "Simulation and Optimization of the Power Station Coal-Fired Logistics System Based on Witness Simulation Software," 2008 Workshop on Power Electronics and Intelligent Transportation System, Guangzhou, 2008, pp. 394-398, doi: 10.1109/PEITS.2008.103.
14. Eryurek E., Upadhyaya B.R. and Erbay A.S. "Software-based fault-tolerant control design for improved power plant operation," Proceedings of IEEE Symposium on Computer-Aided Control Systems Design (CACSD), Tucson, AZ, USA, 1994, pp. 585-590, doi: 10.1109/CACSD.1994.288874.
15. Levit G.T. Mode maps and optimization of control of boiler plants. Elektricheskie stancii [Electric power plants], 1998, no. 5, pp. 26-32. (In Russian)
16. Shaposhnikov V.V., Biryukov B.V., Batko D.N. and MikhalkoYa.O. Increasing the maximum electric power of thermal power plants containing steam-power and steam-gas power units. Promyshlennaya energetika [Industrial Power Engineering], 2020, no. 4, pp. 19-25. (In Russian)
17. Yuanhang Dai, Lei Chen, Yong Min, Qun Chen, Kang Hu, JunhongHao, Yiwei Zhang, FeiXu, "Dispatch Model of Combined Heat and Power Plant Considering Heat Transfer Process", Sustainable Energy IEEE Transactions on, vol. 8, no. 3, pp. 1225-1236, 2017.
18. Varganova A.V. and Shemetov A.N. "Integrated in-Station Optimization of Industrial Thermal Power Plants," 2019 International Ural Conference on Electrical Power Engineering (UralCon), Chelyabinsk, Russia, 2019, pp. 438-442, doi: 10.1109/URALCON.2019.8877662.
19. Varganova A.V. The Algorithm of the Intra-Station Unit Optimization of Operating Modes of Boiler Units and Turbo Generators for Industrial Power Plants. Promyshlennaya energetika [Industrial Power Engineering], 2018, no. 1, pp. 17-22. (In Russian)
20. Kochkina A.V., Malafeev A.V., Kurilova N.A., Netupsky R.P. Construction of Technical and Economic Models of Auxiliary Turbine Generators and Boilers of a Power Plant. Elektrotekhnicheskie sistemy i kompleksy [Electrotechnical systems and complexes], 2013, no. 21, pp. 247-252. (In Russian)
21. Varganova A.V., Malafeev A.V. KATRAN-Opt Active Power. Software RF, no. 2019618345 , 2019. (In Russian)
22. Varganova A.V., Malafeev A.V. KATRAN-Opt Active Power. Software RF, no. 2019618397 , 2019. (In Russian)