An electrochemical DC power supply with the same frequency and different phase parallel control system and its control method

Abstract

The invention relates to an electrochemical direct-current power source same-frequency out-phase parallel control system and a control method of the system. The direct-current power source same-frequency out-phase parallel control system comprises a monitoring system and N direct-current power modules, wherein N>=2. The monitoring system comprises a DSP control circuit, a serial communication circuit, a human-computer interactive device, N same-frequency out-phase control and fault transmission circuits and an output feedback circuit, wherein the DSP control circuit is respectively connected with the serial communication circuit, the human-computer interactive device, the N same-frequency out-phase control and fault transmission circuits and the output feedback circuit. According to the electrochemical direct-current power source same-frequency out-phase parallel control system, the constant voltage function, the constant current function and the constant power function of a power source can be achieved as required, and the system has the advantages of being simple in technology, very small in number of wires,, favorable for maintenance and the like. The control method is digitally controlled and is easy to operate, reliable in control, good in dynamic performance and capable of being directly applied in a digitalized direct-current power source parallel system.

Description

technical field [0001] The invention relates to an industrial high-power DC switching power supply, in particular to an electrochemical DC power supply synchronous-frequency asynchronous parallel control system and a control method thereof. Background technique [0002] At present, there is an increasing demand for various high-power power supplies in many industries, especially for some high-power DC power supplies. However, the capacity of the DC power supply module is limited, and multiple DC power supply modules are often used in parallel operation. The output energy is several times that of the module output, which improves the power level of the system. At the same time, the parallel operation of multiple DC power supply modules makes the system have a certain degree of redundancy. A single module failure will not affect the normal operation of the system, greatly improving the reliability of the entire system. Parallel operation of multiple DC power supply modules no...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of parallel operation of current high-power DC power supplies, a control system and control method for electrochemical DC power supplies with the same frequency and different phases in parallel are proposed.

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