Intermediate frequency sine wave alternating current power supply parallel operation system and control system thereof

Abstract

The invention discloses an intermediate-frequency sine-wave alternating-current power supply parallel operation system and a control system thereof. The parallel operation system comprises an intermediate-frequency sine-wave power supply host and a plurality of intermediate-frequency sine-wave power supply slaves, wherein the intermediate frequency sine wave power supply host and all the intermediate frequency sine wave power supply slaves are respectively provided with a parallel operation input interface and a parallel operation output interface. The parallel operation output interface of the intermediate frequency sine wave power supply host is connected with the parallel operation input interface of the first intermediate frequency sine wave power supply slave; the parallel operation output interface of the first intermediate-frequency sine-wave power supply slave is connected with the parallel operation input interface of the second intermediate-frequency sine-wave power supply slave, and so on, the parallel operation output interface of the (N-1) th intermediate-frequency sine-wave power supply slave is connected with the parallel operation input interface of the Nth intermediate-frequency sine-wave power supply slave, wherein the N is the total number of the intermediate-frequency sine-wave power supply slaves and is greater than 1. According to the parallel operation system, an interface corresponding to each slave does not need to be added for a host structure, so that the problem of capacity expansion limitation in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of power supplies, in particular to an intermediate frequency sine wave AC power parallel system and a control system thereof. Background technique [0002] The intermediate frequency sine wave AC power supply has been widely used in the field of coating due to its stable and reliable operation, high coating quality, and dense and uniform film, especially in the field of solar cell coating, which has significantly improved its film quality. With the development of coating technology, the production capacity of coating equipment is further increased, and the requirements for the power of coating power supply are getting higher and higher. However, the development of intermediate frequency sine wave AC power supply cannot keep up with the requirements of the expansion of coating equipment production capacity. Therefore, the intermediate frequency sine wave AC power supply Parallel use is a flexible and effecti...

AI Technical Summary

Problems solved by technology

The disadvantage is that limited by the physical space of the main control board of the host power supply, the number of power supplies that can be connected in parallel is limited, that is, as many power supplies are connected in parallel, the same number of optical fiber interfaces need to be set on the main control board of the host power supply, so the expansion capacity is limited.

Images