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AC power supply parallel method and device

A technology of AC power supply and host, applied in the direction of circuit devices, AC network circuits, electrical components, etc., can solve the problems of AC power parallel analog signal interference, slow transmission rate of current reference value, cumbersome hardware implementation, etc., to improve parallel operation The effect, the hardware implementation is simple and convenient, and the effect of saving time for parallel processing

Active Publication Date: 2021-03-02
武汉精能电子技术有限公司 +1
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a method and device for paralleling AC power supply, aiming to solve the problem of slow transmission rate of current reference value, cumbersome hardware implementation, and the analog signal of paralleling AC power supply is easily disturbed and distorted in the prior art, resulting in parallel Technical problems with poor machine effect

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  • AC power supply parallel method and device
  • AC power supply parallel method and device

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Embodiment Construction

[0051] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0052] The solution of the embodiment of the present invention is mainly as follows: when the host computer detects that the motors of multiple AC power sources are connected in parallel, the current reference value is sent to the slave machine through the FPGA interface and the differential signal data line; Value modulation output; the current reference value can be transmitted through the digital signal, the transmission rate is fast, and the transmission of the current reference value can be completed in a very short time, which can avoid the interference of the analog signal, and the hardware implementation is simple and convenient, which improves the parallel machine effect , which saves the parallel processing time, improves parallel efficiency, and solves the problem of slow transmission rate of current referen...

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Abstract

The invention discloses a method and device for paralleling AC power supplies. In the method, when a host computer detects that multiple AC power supply motors are connected in parallel, the current reference value is sent to the slave machine through an FPGA interface and a differential signal data line; The slave machine performs modulation output according to the current reference value; the current reference value can be transmitted through digital signals, the transmission rate is fast, and the transmission of the current reference value can be completed in a very short time, which can avoid the interference of analog signals, and the hardware implementation is simple It is convenient, improves the effect of paralleling, saves the time for parallel processing, and improves the efficiency of paralleling.

Description

technical field [0001] The invention relates to the technical field of power supplies, in particular to an AC power paralleling method and device. Background technique [0002] With the improvement of 5G and new energy test requirements, the power requirements for the AC power source are also increasing; this also requires parallel connection of several AC Source motors to obtain higher power. [0003] Usually, the parallel AC Source motor adopts the master-slave mode, the host voltage loop current loop double-loop operation, and the slave current loop works; the output of the host voltage control loop is transmitted to the slave machine through an analog signal as a reference value for the slave current control loop ; But the analog signal is easily disturbed and distorted, thus affecting the effect of paralleling. Contents of the invention [0004] The main purpose of the present invention is to provide a method and device for paralleling AC power supply, aiming to solv...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38H02J3/46
CPCH02J3/38H02J3/466
Inventor 熊锐
Owner 武汉精能电子技术有限公司
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