Optical fiber driven remote inverter

Abstract

The invention belongs to the field of electrical equipment and particularly relates to an optical fiber driven remote inverter, which comprises a PCBA control panel. The input end of the PCBA controlpanel is connected with a low-voltage power supply. The output end of the PCBA control panel is connected with an optical fiber receiving module. The optical fiber receiving module is connected with aPCBA driving board. The output end of the PCBA driving board is connected with a power device. The power device is connected with a motor. By means of the optical fiber driven remote inverter, the optical fiber communication is adopted to replace the design of an optical coupler. Therefore, a high-cost power line is not needed, and resources are saved. The anti-electromagnetic interference intensity is also increased due to the adoption of optical fibers.

Description

technical field [0001] The invention belongs to the field of electrical equipment, and in particular relates to an optical fiber driven remote inverter. Background technique [0002] The inverter is a device that converts DC power (battery, storage battery) into AC power (generally 220V, 50Hz sine wave). The existing inverter consists of the following four parts: (1) IGBT module part, including protection circuit and detection circuit; (2) module drive circuit, many designs use optocoupler devices; (3) power management circuit; (4) DSP control circuit + MCU user interface circuit. This standard line is used for all motors and compressors that need frequency conversion. A factory, a building, an aircraft carrier, and a fighter jet. If there are motors and compressors that need to save power, frequency conversion is required, and these lines are needed. But it has the following disadvantages: (1) The system is independent and difficult to be controlled by the central governm...

AI Technical Summary

Problems solved by technology

However, it has the following disadvantages: (1) the system is independent and difficult to be controlled centrally

Therefore, 100 sets of the above-mentioned lines and costs are needed; (3) maintenance is difficult, each frequency converter or inverter is near the motor and compressor, and any line problems need to be climbed in and out; (4) if the Other communication protocols (such as RS422) manage all systems, the cost of the system is high, and it cannot resist electromagnetic interference. In defense applications such as aircraft carriers and fighter jets, the protection is not high

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