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Author ：Iflowpower – Portable Power Station Supplier
A lot of capacity accounts for the ups power supply, the constant power method (check form method), estimation method, power supply, constant current method, etc., different accounting methods have different results, we are difficult to say which accounting method is the most accurate Each of the various accounting methods have focused on the use of demand in practice, considering the application of the battery, the load conditions of the UPS power supply and the occasions used to choose the appropriate battery capacity accounting method. 1.
Battery maximum discharge current calculates the maximum discharge current of the battery to: IMAX is the maximum discharge current (a) of the battery; P is rated output power (W); COSφFor load power factors (for UPS systems, consider COS outputφIf the use of non-inverting systems, COSφ= 1);ηTo efficiency; E critical is the critical discharge voltage of the monomer battery when discharge is discharged (10V of the critical discharge voltage of 12V); N is the monomer battery of the battery pack. 2. Discharge current calculation Since the discharge current of the UPS power battery is changed during discharge, the current value of the battery is distinguished when the battery is discharged is smaller than IMAX, which is generally taken from 0.
75 as the correction factor, that is, the actual battery required for the battery according to the discharge state of the battery. Discharge current I = 0.75IMAX3.
UPS power battery capacity calculates that after calculating the actual discharge current value of the battery, according to the required alternate time, according to the battery discharge characteristic curve supplied by the battery, find the supply of battery packs. The discharge rate, calculate the battery capacity required to configure the configuration in the formula. The actual configuration of the UPS power battery capacity is: c is the battery pack capacity to be configured; k is a safety factor, generally take 1.
25; i is a load current (2V series battery considers 5 years, 12V series does not consider development); T is Discharge hours; n is the discharge capacity coefficient (communication storage battery is selected n = 0.9, power N = 0.95, UPS system n = 1); T temperature adjustment coefficient.
The battery plays an irreplaceable taste role in various UPS. With the development of electrochemical technology, the sealing valve lead-acid battery occupies the vast majority of the power market. In the UPS, 12V / 40AH combination sealing valve-controlled battery is used.
It is characterized by maintenance, no need to supplement water, while the size is small, safe and convenient. .
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