The main courses of electrical engineering and electrical training include: political theory courses, foreign language courses, engineering mathematics, electrical network theory, electromagnetic field theory, power electronics, power system reliability analysis methods, high-voltage insulation theory, motor and electrical design theory and methods, motor and electrical quality control and testing methods, power system and its automation, power system safety and monitoring devices, high-voltage insulation testing technology New Advances in Electrical Theory Research, Fundamentals of Computer Application Technology, Computer Aided Circuit Analysis, Fundamentals of Modern Management, etc. Electric energy, as the main secondary energy source in modern times, has been widely used in production and daily life, playing an extremely important role in the modernization process of human society. The production and transmission of electricity have formed the "power industry", and the scientific and technological content of its operation and management is rapidly increasing; At the same time, the production, transmission, use, and control equipment of electrical energy are also constantly developing or updating towards intelligence, complete sets, and high efficiency, gradually combining with electronic computers, microelectronics technology, and power electronics technology to form new types of electrical technology and equipment. Electrical engineering is playing an increasingly important role in the development and progress of the national economy and science and technology. The field of electrical engineering mainly includes engineering technology related to the safe, reliable, and economical operation of power systems throughout the entire process of electricity production, transmission, and use, as well as the design, manufacturing, operation, measurement, and control of various electrical equipment and systems. This engineering field is closely related to engineering fields such as electronics and communication engineering, computer technology, control engineering, materials engineering, mechanical engineering, instrumentation engineering, and power engineering. This article is based on the stability control problem of the power system, combined with the research project of the new generation intelligent low-frequency and low-voltage load shedding device, and studies related fields and proposes new ideas, laying the foundation for more in-depth research. This article first reviews the current research status of power system security and stability control, and summarizes the main research achievements at home and abroad from two aspects: control theory and control measures (devices). Finally, the development trend of security and stability control technology was briefly introduced. The direct method of transient energy function in power systems has made significant progress after years of research and has become an important auxiliary method for time-domain analysis. The second chapter of this article introduces the basic theory and methods of transient energy function, with a focus on exploring the EEAC method and its application in stable machine shutdown control. Further practicality requires a lot of work