Double-unit backup controller of proton exchange membrane fuel cell and control method of double-unit backup controller

Abstract

The invention relates to a double-unit backup controller of a proton exchange membrane fuel cell. A master controller processor and an alternate controller processor are both connected with a power supply module, a data storage module, a master / alternate controller switching module; the master controller processor is also connected with the alternate controller processor and a communication module; the master / alternate controller switching module is connected with a data acquisition module and a driving output module. The method comprises the following steps that the master controller processor monitors a fuel cell device in real time, and regularly sends data of a fuel cell sensor to the alternate controller processor for backup; when the master controller processor malfunctions, the alternate controller process backs up the information of the fuel cell sensor by the master / alternate controller switching module and turns off the device. According to the invention, double-unit standby redundancy design is adopted; when the master controller malfunctions, the alternate controller can replace in real time so as to complete the necessary control operation, so that the system is prevented from being in the out-of-control state; the double-unit backup controller of the proton exchange membrane fuel cell has the characteristics of performance stability and high reliability.

Description

technical field [0001] The invention relates to a controller for a fuel cell power generation system and a control method thereof, specifically belonging to the technical field of proton exchange membrane fuel cell control. Background technique [0002] The proton exchange membrane fuel cell system (referred to as: PEMFC) is a complex electrochemical device with multiple inputs and multiple outputs. The fuel cell is generally composed of hundreds of single cells connected in series. The voltage of the single battery directly reflects the working state of the battery stack, and the working conditions such as the pressure of the reaction gas, humidity, and the internal temperature of the battery stack directly affect the performance and life of the battery stack. During the operation of the PEMFC system, the fuel cell controller can detect and control these physical quantities in real time, provide the required raw materials and suitable environment according to the actual ope...

AI Technical Summary

Problems solved by technology

At present, with the development of modern microelectronics technology, although the CPU control chip has high reliability, and the average time between failures is as high as tens of thousands or even hundreds of thousands of hours, it is difficult to guarantee that there will be no failures during operation, especially in the long-term Influenced by high temperature, electromagnetic interference or other environmental factors during continuous operation, it is more likely to cause CPU failure and cause the controller to be paralyzed

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