Model essay on electrical engineering and automation 1: Introduction to electrical engineering and automation specialty Abstract: Electrical engineering and automation specialty is a multidisciplinary specialty. Electrical engineering (EE) is one of the core disciplines in the field of modern science and technology, and it is also an indispensable key discipline in the field of high and new technology. In a sense, the degree of development of electrical engineering represents the level of scientific and technological progress of the country.
Keywords: introduction and development of electrical engineering and automation specialty
It is precisely because of the development of electrical engineering that today's huge power industry has emerged, and mankind has irreversibly entered the great era of electrification. The development of human beings can not be separated from energy at any time. Energy is the eternal research object of human beings, and electric energy is the most convenient form of energy. The specialty of electrical engineering and automation, which takes electric energy as the research object, has strong vitality.
First, introduce professional content.
Electrical engineering and its automation involve power electronics technology, computer technology, electromechanical technology information and network control technology, electromechanical integration technology and many other fields. This is a comprehensive subject. The professional scope of electrical engineering and automation mainly includes three parts: the basic theory of electrical engineering, the manufacture and application of electrical equipment, and the operation and control of power system. The foundation of electrical engineering and its automation specialty also determines that it has strong interdisciplinary and comprehensive ability.
Training requirements: this major trains "high-quality, powerful and applied" senior engineering and technical personnel who can engage in the fields of system operation, automatic control, power electronics technology, information processing, experimental analysis, research and development, economic management and application of electronics and computer technology related to electrical engineering. Students mainly study broad engineering technical foundation and certain professional knowledge in electrician technology, electronic technology, information control and computer technology. The main characteristics of this major are the combination of strong and weak electricity, electrical technology and electronic technology, software and hardware, components and systems. Train students to master electrical and electronics, information control and computer technology, and have the basic ability to solve technical problems of electrical engineering analysis and control.
Main subjects: electrical engineering, computer science and technology, control science and engineering.
Main courses: circuit principle, electronic technology foundation, electrotechnics, power electronic technology, electric drive and control, computer technology (language, software foundation, hardware foundation, single chip microcomputer, etc. ), signal and system, control theory, etc.
Electrical engineering is generally divided into power system and applied electronics (that is, power electronics).
Second, the professional development prospects
The discipline of electrical engineering involves various fields such as industry, agriculture, transportation, national defense and people's life, and intersects with disciplines such as electronic science and technology, computer science and technology, control science and engineering, information and communication engineering, environmental science and engineering, and biomedicine. , thus broadening the connotation and extension of electrical engineering discipline. With the development of science and technology, the discipline structure, research field and technical field of electrical engineering have changed greatly. Information technology, computer technology, communication technology, power electronics technology and automation technology are increasingly applied to electrical engineering, and the professional connotation of electrical engineering and automation has also evolved into the combination of strong electricity and weak electricity, electrical technology and electronic technology, software and hardware, components and systems. For example, the cross-integration of "electrician", "electronic technology" and "control science" produced "power electronic technology"; The cross-integration of "electrical engineering" and "material science" has produced "superconducting electrical technology" and "nano-electrical technology"; The cross-integration of electrical engineering, mechanical engineering and computer science has produced a new discipline of mechatronics, and formed an organic integration of "machinery+electricity+computer" with "machinery" as the main body and electrical engineering and computer control as the technical core. In fact, "mechatronics" technology is the inevitable product of a highly developed stage of electrical automation technology, and it is the mechanical technology and electronics in the field of electrical automation. With the rapid development of science and technology, electric power has become an important means of production in the national economy and an indispensable means of livelihood in people's lives. Now the improvement of electrification makes all kinds of economic activities inseparable from electricity (except vehicles that use oil). The proportion of electric energy in China's terminal energy consumption is close to 20%, which is higher than the world average. The level of electrification in China also determines the wide coverage of power data. Some experts said that the development direction of power industry is smart power system, or strong smart grid or smart grid. Intelligent power system is the most effective way to realize the development value characteristics of power industry, and it is also the development direction of modern power industry. The development of intelligent power system can ensure safer, more economical, more environmentally friendly and more harmonious. At the same time, smart power system is a strong smart grid in a broad sense, which can effectively alleviate the challenges of future development.
Third, professional application and employment direction
Several directions of electrical engineering and its automation;
Power system, electrical technology, applied electronics technology, high voltage and insulation technology, motor and its control.
1. Power system direction
Power system specialty is the most advantageous and characteristic specialty in electrical engineering and automation specialty, and is an important part of national first-class specialty, which mainly trains senior engineering and technical personnel engaged in the design, manufacture, operation and maintenance of high-voltage electrical equipment. Relying on the first-class doctoral degree authorized discipline of electrical engineering and postdoctoral research mobile station, this major covers two second-class doctoral and master's degree authorized disciplines of high voltage and insulation technology and dielectric engineering, and power system is a national key discipline. At the same time, two professional modules, high voltage insulation technology and electrical insulation and cable, are set up in the professional direction.
Employment direction: I can be engaged in the design, development, production and management of high-voltage equipment in power equipment manufacturing industry, technical work and management of high-voltage equipment operation and maintenance in power system, employment in electric power bureau, power supply bureau and power plant, and teaching and research work in scientific research institutes.
2. The development direction of electrical technology
Electrical technology is a direction of electrical engineering and automation specialty. This major is a key one, with the right to award the first-class degree of doctor's degree in electrical engineering, post-doctoral mobile station in the field of electrical engineering, master's degree in engineering in disciplines such as high voltage and insulation technology, motor and electricity, power electronics and power information processing.
Employment direction: Electrical technology mainly trains senior electrical engineering technical personnel in electrical measurement and control technology, engaged in research on information collection and processing technology of electrical parameters and magnetic parameters, and design, development and application research of devices and systems in the field of electrical technology automation control. After obtaining a degree, you can engage in theoretical research, technical development, operation management and other technical work in enterprises in the field of electrical engineering technology, and you can also engage in research and teaching in scientific research institutions and institutions of higher learning.
3. Motor and electrical direction
In the theory and technology of integrated motor, the subjects of electrical and electrical mainly study stepping motor, brushless DC motor, inductosyn and so on. In the aspect of motor power electronic drive technology, the structure and control strategy of electric vehicle and motor drive system, as well as the harmonic suppression technology of variable frequency power supply are studied. In the aspect of high-environment and high-reliability electrical appliances, the reliability theory and technology of high-environment electrical appliances are studied, and the reliability design of flywheel for satellite attitude control is studied. In the theory and application of new electromagnetic mechanism, special motor, magnetic fluid seal, online balance of rotating shaft and electromagnetic forming technology are studied. Among them, it has a great influence on special motors such as stepping motors and brushless DC motors and aerospace appliances.
Employment orientation: I can engage in research, design, development, operation and management in the field of electronics in industries such as electric power, electronics, communication, machinery, transportation and construction, and I can also engage in research and teaching in scientific research institutions and universities.
4. The application direction of electronic technology
The direction of applied electronic technology is a characteristic professional direction of electrical engineering and automation specialty, which is characterized by equal emphasis on electricity and electronics, and the integration of power electronics and information electronics. Cultivate wide-caliber and compound senior engineering and technical personnel engaged in electrical engineering, electronic technology, power electronic technology, automatic control, signal conversion and processing.
Employment orientation: I can engage in the research, design, development, operation and management of applied electronic technology in electric power, electronics, communication, machinery, transportation, construction and other industries, and I can also engage in research and teaching in scientific research institutions and universities.
Four. Concluding remarks
In short, with the rapid development of China's economy, computer science and technology are also progressing, and it has become a reality to realize electrification through computer software and hardware control. Computer simulation operation provides convenient and fast monitoring and judging functions for the actual operation of power system. Personal computer and network technology have been popularized in enterprise management. In the field of electrical automation, the man-machine interface based on PC is widely used, and it is favored by users because of its intuition, flexibility and easy integration. Choosing the major of electrical engineering and automation, we should be determined to become excellent electrical engineering talents, so that China's electric power industry will not lag behind the international advanced level and promote the process of socialist modern industrialization.
Electrical Engineering and Automation Model II: Application of Automation Technology in Electrical Engineering Abstract: The scientific application of automation technology in electrical engineering practice is of great significance, which can provide a solid guarantee foundation for the safe and stable operation of power system, improve the stability of power supply in power grid system, ensure the power supply quality of power grid system, and reduce the impact of power outage on social production and residents' lives. Therefore, as a power builder in the new era, in the process of power engineering, we should devote ourselves to improving our professional technical level, always adhere to the principle of seeking truth from facts, and rationally apply modern automation technology in combination with engineering practice, so as to effectively control, supervise, adjust and manage the actual operating state of the whole power system, ensure the safe operation of the power grid, and at the same time promote the extensive and in-depth application of automation technology in power engineering, better play its positive role and reduce the occurrence of equipment failures.
Keywords: electrical engineering; Automation technology; Application; analyse
The scientific application of automation technology greatly promotes the development of electrical engineering, so it is of great practical significance to strengthen the application analysis of automation technology in electrical engineering. Therefore, as an electrical builder in the new era, we must strengthen the application of automation technology in electrical engineering and strive to improve the automation level of electrical engineering to ensure the effective improvement of electrical engineering quality. Based on this, the author makes the following exploratory analysis combined with his own work practice.
1 analysis of main application forms of automation technology in modern electrical engineering
Application Analysis of Power Dispatching Automation Technology in Electrical Engineering
From the application point of view, in power system engineering, on the basis of ensuring the safe, economical and high-quality power supply and power generation of the whole power grid system, the automation of the whole power grid dispatching is realized. In addition, power grid dispatching automation also plays an important supporting role in the production automation and modern management of power engineering. At present, the practical application of power dispatching automation technology in electrical engineering mainly includes dispatching master station system and motion device system. According to this configuration structure, the application of power dispatching automation technology in electrical engineering can realize the following functions.
1. 1. 1 monitor the normal operation state and related actions of the power grid system stably and continuously.
At the same time, monitor and manage the actual operation state of the power grid (such as frequency index, power flow index, load index, voltage index, etc.). ), the power dispatcher can also formulate specific operation conditions and related work indicators (including power consumption indicators and water consumption indicators, etc.). ) The operation status of all power equipment in the power system is comprehensively and reliably reflected. The application of electric power dispatching automation technology can not only ensure that the values of the above monitoring indexes meet the requirements of specifications, but also ensure that the end users of electrical engineering meet the requirements of resources such as electric energy, steam energy and water.
1. 1.2 to ensure the economy and reliability of power grid system dispatching.
The application of power dispatching automation technology in electrical engineering can effectively control and reasonably reduce all kinds of energy consumption problems during the operation of power grid on the premise of realizing the safety monitoring of power grid operation system, and at the same time meet the requirements of more power generation and more power supply during the operation of modern electrical engineering, and ensure the economy and reliability of power grid dispatching operation.
1. 1.3 Scientifically analyze and effectively deal with safety accidents in power grid operation.
Practice shows that the causes of operation accidents or abnormal operation problems in the process of power grid operation are very complicated, and most operation safety accidents are in a normal distribution state. Therefore, if this kind of power grid operation accident cannot be scientifically judged and properly handled in practice, it will seriously threaten the life safety of operators and the safety of electrical equipment within the coverage of power operation system. Then, from this point of view, the effective combination of power engineering and power dispatching automation technology provides a favorable guarantee for scientific analysis of the operation safety of power grid system under different operating conditions, and can also provide corresponding effective accident handling methods and power grid monitoring strategies, so as to avoid power grid operation safety accidents to the maximum extent, which plays an important role in realizing the safe operation of the whole power grid.
Application analysis of power plant automation technology in 1.2 electrical engineering
Judging from the current technical conditions, the main components of power generation automation technology include automatic control of power machinery, automatic voltage control system and automatic power generation control system. Especially in China, according to the different operation modes of power plants, the current power plants in China are generally divided into the following two types: thermal power plant automation system and hydropower plant automation system. However, it should be noted that there are many similarities in the application of power plant automation system and technology, regardless of whether the power generation mode is mainly hydropower, thermal power or other types of power generation modes. Specifically, it can be divided into two aspects:
1.2. 1 application analysis of automation technology in electrical engineering in hydropower plants
Under the current technical conditions, in order to ensure the stability, reliability and application quality of the whole electrical engineering, it is often required that the automation technology of hydropower plants must have modules including hydro-generator system, hydraulic turbine device and governor device in practical application. In view of the difference of different operation modes of automation system, the automation system of hydropower plant is mainly divided into cascade integrated automation mode, single machine mode, full-length automation mode and public equipment mode. From the practical application direction, the application of hydropower plant automation system and its corresponding technology in electrical engineering can significantly improve the legal economy of normal application of hydropower plants, increase the economic benefits of hydropower plants, and provide a solid guarantee for power supply quality.
1.2.2 application analysis of thermal power plant automation technology in electrical engineering
The application of automation technology in electrical engineering of thermal power plant also has obvious comprehensive characteristics. The main components of automation technology in thermal power plant include organic boiler main control system, generator automatic control system, steam turbine control system, boiler control system and so on. Through the real-time monitoring of computer and the comprehensive sharing of effective data, the reliability of electrical engineering application is scientifically guaranteed. From the practical application, the automation technology of thermal power plant not only has the comprehensive processing function of information and data, but also has the functions of automatic protection of operating equipment, automatic detection of operating state, comprehensive management and operation control.
2 electrical engineering automation technology development direction analysis
2. 1 application of integrated management and control technology
Theoretically, the integrated management and control technology of electrical engineering refers to giving full play to the integration and integration advantages of related information and data by focusing on different communication links of electrical engineering and scientific application of automation technology. In the process of integration with information management system, the integrated control system can completely and comprehensively display the information control network applied by electrical engineering in normal application state.
2.2 Application of Condition-Based Maintenance Technology
From the application point of view, the condition-based maintenance technology in power engineering can be positioned as follows: through the application of equipment asset management system in electrical engineering, focusing on its comprehensive functions in fault diagnosis and condition monitoring, providing state information and data of condition-based maintenance equipment in normal operation, and effectively predicting the actual operation state, potential safety hazards or fault factors of corresponding equipment in electrical engineering by organically combining these data. In this way, the transition from the traditional fault maintenance mode to the new condition maintenance mode can also be realized. From the perspective of practical application of electrical engineering, the scientific application of condition-based maintenance technology in the practical work of electrical engineering can not only effectively improve the safety and stability of corresponding electrical equipment, but also effectively overcome the omissions and defects existing in the traditional periodic fault maintenance mode, which provides a strong guarantee for the safe operation of power system.
3 Conclusion
To sum up, with the progress and development of science and technology, China has also made good achievements in automation technology, especially in electrical engineering, where automation technology is increasingly widely used. Based on this, this paper takes electrical engineering as the main research object, mainly analyzes the application of power dispatching automation technology and power plant automation technology in electrical engineering, and puts forward the development direction of electrical engineering automation technology, aiming at strengthening communication with peers, improving the application level of automation technology in electrical engineering and promoting the rapid development of China's electrical industry.
refer to
[1] Bai Jie. Research on integration and application of electrical automation technology in electrical engineering [J]. Zhongke Investment, 20 13, 1 1: 148.
Lei Ming. Application analysis of automation technology in electrical engineering [J]. Science and technology wind, 20 13, 10: 86.
Zhong Jiahong. Application Analysis of Electrical Automation in Electrical Engineering [J]. Science and Technology Wind, 20 12(09).
[4] Feng Qiaoling, He Ping. Discussion on the training objectives and methods of electrical engineering and automation specialty [A]. Proceedings of the 5th National Symposium on Teaching Reform of Electrical Engineering and Automation Specialty in Colleges and Universities (2)[C].2008.
[5] Zhang Yong. On quality control and construction safety of electrical engineering [J]. Science and education news (education and scientific research), 20111.
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