Research And Application Of Energy Saving Technology Based Frequency Control Of Motor Speed

Energy is the essential basis for the development of a country. Electrical energy is the energy of the most widely application scope, with the growing energy crisis, energy-saving research of electric power industry get more and more attention. Thermal power to dominate the power industry in our country the absolute advantage. Coal-fired power plants is electricity producers and electricity users and consumers. All kinds of auxiliary equipment in power plant is a large energy consumption and low efficiency, the fan pump accounts for the vast majority of such equipment. Therefore, in the process of the operation of the fan and water pump has great potential for energy saving. Frequency control technology is a good safety, stable performance, energy saving effect is remarkable, high degree of automation of ac motor speed control technology. Therefore, this article addresses the frequency control of motor speed and energy saving technology of electric power industry research, the main work and achievements are as follows:(1) Speed method, introduces several common key, taking the research of frequency conversion technology. In the study of frequency converter on the basis of analyzing the principle of frequency control of motor speed is studied and the way of control.(2) The further study of the frequency control of motor speed and energy saving control technology. In combination with the working principle of the motor,fan and water pump as an example, analyses the energy saving principle of frequency control of motor speed; High voltage variable frequency speed regulation and energy saving technology is studied, the paper analyzes the working principle of high voltage variable frequency speed regulation technology, usage and application to follow the principles.(3) In the key of liaoning pawn mountain of inverter in the coal gangue power generation corporation analysis as an example, analyzes the high voltage variable frequency speed regulation technology in the electric power applied to the energy conservation. Introduces the reasons and revamping project operation condition,research data, analysis of the water pump and fan in the operational characteristics of power frequency and frequency conversion conditions, according to GB12497-1995 motor in the three-phase asynchronous motor and economic operation rules of economic operation of the formula for energy saving calculation,was studied by high voltage variable frequency transformation technology of other income.