Application of modern power TXP distributed control system in 660MW generating units of Wei Yun-Jie 1 Huo Gang 2 (1 Huazhong University of Science and Technology, Wuhan 430074, China; 2. Hebei Electric Power Research study based on the Shijiazhuang 050021) The system of TXP distributed control system configuration and functions, , which focuses on the process control and management system OM650 configuration, function, content configuration, route configuration, monitoring screen process, performance calculations and reports; Details of the automatic control system AS620 scope and function, such as: DAS , SCS, CCS, FSSS, DEH, MEH, BPS. at the same time, combined with the problem I found in the debugging Hanfeng Power plant, given the appropriate treatment problems. The thermal power automatic control system (DCS) of Unit 1 of Jiufeng Power Plant uses the TELEPERMXP distributed control system produced by SIEMENS, Germany. The system is mainly composed of AS620 automatic system, OM650 process control and management system, ES680 engineering system and bus system. Each station is connected to the plant bus (PLANTBUS) and terminal bus (TERMINALBUS) via a star coupler. The communication and data sharing network follows the Ethernet standard. There is a dedicated clock to complete the system time and coordinate control with the TELEPERMXP complete unit (CCS). ), auxiliary machine sequence control (SCS), bypass control (BPC), burner management and furnace protection (BMS), process data acquisition (DAS), turbine control (DEH), feed pump control (TBFP), turbine monitoring ( TSI) and accident recovery (SOE) and other functions. The 1 unit and the common control system of the first phase of the 1TXP system function include the interconnection of the control system structure of the No. 1 unit as shown in the figure, and the electronic cabinet of the No. 1 unit and its corresponding functions are as shown. 2 OM650 Process Control and Management System The OM650 process control and management system is the human-machine interface of the entire distributed control system. It undertakes the tasks of thermal data collection, thermal operation, accident recall and performance calculation of the entire power plant. The core of the unit monitoring system. The OM650 system of Unit 1 of Qifeng Power Plant has been comprehensively debugged by the TXP system, and the functions supported by the system have all been realized. 21 OM650 process control and management system composition In the TELEPERMXP decentralized system, the OM650 process control and management system communicates with the PU and service unit SU through the terminal bus (TERMINALBUS) and the process, and obtains the process parameters of the power plant and the internal components of the distributed control system. The status parameters provide information for operational monitoring, plant management, and thermal system maintenance, enabling centralized monitoring of decentralized control systems. The hardware configuration of Unit 1 OM650 system can be seen. In the OM650 system, the PU is connected to the power bus and terminal bus at the same time, becoming the AS automatic system and the OT and SU data exchange fund project: the national and Hebei key projects during the “Ninth Five-Year Plan†period. 10CULD110CUL02I0CU10310CUUM relay cabinet relay cabinet relay cabinet relay tearing 10C11 SKCLK public system gland shed clock star pot clock star disaster 00AVA0110HCB10 DEF main off blowing ash cabinet fire inspection fire 10CHY1010CHA1110CHAU10CHA1210CHA13 interface cabinet accident record change (protection hair protection protection hair protection change protection Unit 1 control system structure No. 1 unit electronic cabinet and its corresponding function sharing and system maintenance ico stomach dElectronicPublish%,! Process display dynamic station map, tt alarm, accident recall bridge, effectively alleviating the site directly with the power plant The communication load rate caused by the bus connection is high. The data processing, alarm processing, performance calculation, balance calculation and short-term storage of the entire distributed control system are all undertaken by the PU, and the SU of the process data is connected to the terminal bus. Complete tasks such as long-term storage, text management, reporting, accident recall, and notepad for the DAS system, and have certain configuration functions. OT is the human-machine interface of the entire distributed control system, and the plant turbine required for power plant management and control. The system and the OMI Supervisor deserved Kc in total: 166 jobs. North Beijing: Water Conservancy and Electric Power Press, 1984 Li Zunji. Thermal Engineering Automatic Control System. Beijing: China Power Publishing Zhang Lixiang, et al. TXP System Manual. Taiyuan Power Higher Expertise Power Market Recent Models Introduction Program One Program Two Program Three Programs Four 1. Market structure voluntarily participates in the regional electricity market coordinated operation of the regional electricity market, new regional electricity market share, regional market share, electricity bidding, regional market 2. Regional market main body, extra-regional trading entities, provincial power grid companies, and access to power plants (gradual development) ) Extra-regional trading entities, power generation companies and provincial power grid companies to build new power plants, provincial power grid companies and extra-regional transaction entities, and provincial power grid companies 3. Transaction types contract transactions and spot transactions, spare capacity transaction contract transactions and spot transactions 4 The spot market voluntarily participates in the mandatory participation in the market trading space free trade formation to determine the inter-provincial tie line capacity. The newly added electricity is deducted from the contracted electricity. The proportion of the electricity market price mechanism. The supply and demand sides are quoted. The marginal price of the system is the market clearing price area. market Market seller quotation; system marginal price to meet demand is market quotation for market clearing price market; system marginal price to meet demand is market clearing price 5. New power plant problem and provincial power grid company sign long-term power purchase contract, excess power sold to provincial power grid The company or regional market sells (accept for the qualification of admission) to sign a long-term contract with the provincial power grid company, the remaining power participates in the provincial spot market bidding through the regional market and the provincial power grid company to sign long-term contracts, or participate in regional power spot market transactions. Long-term acquisition of electricity contracts as the basis 6. Transmission channel use rights Contract transactions are preferred over spot transactions Long-term contracts are better than short-term contracts Contracts are better than spot transactions Long-term contracts are preferred over short-term contracts Contracts are preferred over spot transactions Long-term contracts are preferred over short-term contracts Long-term contracts Better than forced electricity market transactions, medium-term, short-term, real-time bilateral contracts 7. Transmission congestion processing price division CO2 Laser Cutting Engraving Machine Series--Nonmetal materials
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