Online monitoring system for storage battery of fan variable pitch propeller
A monitoring system and storage battery technology, which is applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of high labor intensity, high maintenance cost, and low operating efficiency of workers, and achieve reliable and effective detection results and light labor intensity of workers , the effect of high degree of intelligence
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[0032] see image 3 , the present invention is provided with a transient discharge circuit 7 to storage battery, and this transient discharge circuit 7 is made up of current measurement device 4, voltage measurement device 3, discharge resistance 21 and time relay SJ, controls the discharge of discharge resistance 21 by time relay SJ time. By measuring the discharge voltage and discharge current of the circuit, the internal resistance of the battery can be obtained, and then judge whether the power of the battery is sufficient. The formula for calculating the internal resistance of the battery is:
[0033] R=△V / I
[0034] In the formula, R is the internal resistance of the battery; △V is the instantaneous voltage difference after the voltage is stable; I is the discharge current.
[0035] see figure 1 , the wind power pitch storage battery online monitoring system includes:
[0036] - A transient discharge circuit 7 for detecting the internal resistance of the storage batt...
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