Fuel cell voltage inspection system

Abstract

The invention discloses a fuel cell voltage inspection system. The fuel cell voltage inspection system comprises a master control module and a plurality of slave control modules, wherein the master control module and each slave control module are electrically connected with a low-voltage power supply module; the main control module comprises a main control chip, a main CAN communication chip, a main isolation CAN communication chip, a main isolation SPI communication chip, a main voltage acquisition chip, a main optical relay, a main low-voltage power supply module and a main isolation power supply chip. According to the invention, a modular manufacturing mode is adopted, the cost is reduced, the combination mode is flexible and changeable, the number matching of acquisition channels in a voltage inspection scheme is more flexible, the number of acquisition channels can be increased or decreased by increasing or decreasing the number of slave modules, and the customer matching degree and the channel flexibility are improved.

Description

technical field [0001] The invention relates to the technical field of fuel cell production and processing, in particular to a fuel cell voltage inspection system. Background technique [0002] With the current world's high requirements for environmental protection, we pay more and more attention to the extensive and convenient use of clean energy. As an electrochemical power generation method, fuel cell power generation is the fourth power generation method after hydropower, thermal energy and atomic power generation. Its high efficiency, low emission, and convenient use make it indispensable in the field of new energy. status. [0003] The use of fuel cells is inseparable from the real-time voltage monitoring of external controllers. The current voltage acquisition and monitoring technologies are various, and fuel cells also rely on conventional chip analog acquisition. Can a flexible, high-precision, and cheap The voltage acquisition scheme will not only be the key to w...

AI Technical Summary

Problems solved by technology

At present, due to the large difference in the number of cells in the fuel cell stack, most controllers on the market can only meet the collection of the corresponding number of cells in the stack. Once the customer increases or decreases the number of cells, the original controller cannot meet the requirements. Requirements, need to re-develop, research and development costs are relatively large

It is difficult to achieve the corresponding battery port collection with a fixed number of collection ports, so the mismatch between insufficient collection ports and different customers and the waste caused by redundant collection ports have always been a troubled problem

At the same time, the extensive use of acquisition module chips and the difficulty of finding substitutes also make the supply of chips a huge limiting factor in production

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