Schneider Electric's medium voltage inverter ATV1200 reduces the power consumption rate of nuclear power plants

Recently, Schneider Electric, a global energy efficiency management expert, announced that it will provide energy efficiency solutions centered on ATV1200 10KV medium voltage inverter products for Units 3 and 4 of the second phase project of China Nuclear Group Sanmen Nuclear Power Co., Ltd. The first application of Schneider Electric medium voltage inverter products in the field of nuclear power. Sanmen Nuclear Power Station is China's first independent third-generation nuclear power project, which uses the world's leading third-generation nuclear power technology AP1000. In the project, Schneider Electric's ATV1200 10KV medium voltage inverter product will be mainly used in the frequency conversion speed regulation of the seawater membrane reverse osmosis booster pump.

The development of nuclear power to increase the proportion of clean energy is an important development strategy for China to promote energy conservation and optimize energy structure. However, as safety-related information has received more and more attention, the development of nuclear power has also encountered huge challenges. The Chinese government has promulgated the Nuclear Power Safety Plan (2011-2020) and the Nuclear Power Medium- and Long-Term Development Plan (2011-2020) successively this year, both of which emphasize the need to implement the "safety first" approach to nuclear power planning and construction. , The entire process of operation, decommissioning and all related industries. In this project, the ATV1200 medium voltage inverter provided by Schneider Electric for the Sanmen nuclear power unit adopts the most mature technology of the current medium voltage inverter-'multi-level series connection' to achieve the output of medium voltage, fully Ensure the smooth and safe operation of motors and equipment. In addition, ATV1200 can effectively reduce system energy consumption, thereby reducing the power consumption rate of the entire nuclear power plant.

"Nuclear power has always been an area of ​​great concern to Schneider Electric, and we have already possessed corresponding mature technologies, products and solutions. Participation in the construction of the world's leading nuclear power unit is a good proof. In this project, our ATV1200 The parameters of the voltage converter products in terms of performance and safety fully meet or exceed the requirements of customers, and are equipped with excellent after-sales service support, which has been fully recognized by Sanmen Nuclear Power. The Chinese nuclear power market has great potential for development. At the end of 2012, the National Development and Reform Commission clearly emphasized that 'China's determination to develop nuclear power will not change'. In the future, Schneider Electric will continue to invest in this field, hoping to join hands with all sectors of the industry to build China into a global leading nuclear power market. Xu Jun, president and head of the industrial division, said.

Schneider Electric ATV1200 is a product developed in response to the call for energy saving and emission reduction, which has been successfully applied in many industries. It consists of three parts: transformer cabinet, power unit cabinet, and control cabinet. The input adopts 24-48 pulse rectification, the current harmonic distortion rate THDi is less than 2%, and almost no harmonics are generated; nearly perfect sinusoidal waveform output-"clean and friendly" The design reduces the mechanical vibration of bearings and blades, which can effectively protect the motor and equipment. The main controller is based on DSP, FPGA, CPLD and other modern most advanced electronic devices, with fast calculation speed and reliable operation. In addition, ATV1200 also has built-in application functions such as grid synchronous switching, PID, flying start, and synchronous motor excitation control.

The three-core nuclear power project of China National Nuclear Corporation adopts the third-generation nuclear power technology AP1000 developed by Westinghouse of the United States. It plans to build six 1.25 million kilowatt nuclear power units with a total installed capacity of 7.5 million kilowatts. It is planned to be completed in three phases. The investment exceeds RMB 100 billion. The first phase of the project officially started on April 19, 2009. Unit 1 is the world's first AP1000 nuclear power unit.