Dedicated integrated variable frequency power supply for uranium enrichment

Abstract

The invention belongs to the technical field of power supplies, and specifically relates to a dedicated integrated variable frequency power supply for uranium enrichment. The power supply consists of four working variable frequency power supplies and two standby variable frequency power supplies. Each working variable frequency power supply is in unidirectional connection with a load. The communication ends of the six variable frequency power supplies are connected with each other through a CAN bus. The monitoring ends of the six variable frequency power supplies are connected with the input end of a power supply monitoring system through an RS485 bus. The remote monitoring ends of the six variable frequency power supplies are connected with a DCS remote control system through radio. Each variable frequency power supply comprises an integrated power cabinet and an integrated power load cabinet. The power supply greatly reduces the size through employing the rectification of an 18-pulse phase shift transformer and the PWM digital inversion of IGBT paired tubes while improving the efficiency and reliability. The power supply enables the operation of the whole intermediate frequency power supply system to be more convenient and quicker, and enables the operation to be more reliable.

Description

technical field [0001] The invention belongs to the technical field of power supplies, and in particular relates to an integrated frequency conversion power supply for uranium enrichment. Background technique [0002] At present, 190-type variable-frequency power supply, domestic 150-450-type variable-frequency power supply and 180-type variable-frequency power supply are widely used in the variable-frequency power supply equipment of uranium enrichment commercial centrifugal plants. Among them, the 190-type variable-frequency power supply is a power electronic device in the mid-1960s abroad, and the domestic 150-450-type variable-frequency power supply is a PWM inverter intermediate-frequency power supply independently developed in China after 2005. The disadvantage of these two types of power supplies is that the backup of the variable frequency power supply, maintenance switching, output reactive power compensation, and host start-up all need to work with a separate secti...

AI Technical Summary

Problems solved by technology

The disadvantage of these two types of power supplies is that the backup of the variable frequency power supply, maintenance switching, output reactive power compensation, and host startup all need to work with a separate section power supply cabinet, which makes the equipment of the variable frequency power supply system not uniform enough, which brings inconvenience to subsequent maintenance.

The newly introduced 180-type variable frequency power supply realizes the organic combination of variable frequency power supply and section power supply cabinet, making the whole power supply system simple and reliable, and realizes one-button switching operation. However, due to its low output power, and each variable frequency power supply is composed of two separate Composed of power cabinets, each power cabinet can only carry one unit, which cannot meet the process cascade requirements of one power supply with 1-3 units

[0003] At present, there is no integrated centralized control large-capacity frequency conversion power supply suitable for uranium enrichment commercial centrifuge plants

Images