Push-pull system of autonomous power house

By Admin | Electrical Light
26 April 2016
known that in the case of systematic undercharging of lead-acid batteries of their life is significantly reduced.However, economic evaluation is not yet lend itself due to a lack of appropriate baseline data from the manufacturers of batteries.

In a classical system of autonomous power supply (EPS), consisting of a power generator, battery charger, battery and inverter, this disadvantage is fully manifested.This is due to too long the need to fully charge the battery - certainly more than a convenient and cost-effective operating time generator.

at the last stage battery charge remaining approximately 20% is unprofitable to take charge from the generator, sincein this case it would have to work long with scanty load.Sometimes they take 20% of the solar cells - Security (is also profitable - especially at night and in cloudy weather) or wind generators - SH (the wind does not always happen, and VG also cost money).

Andrei with the help of colleagues at the forum "Home and Cottage" has found a cost-effe
ctive solution without the SAT and HS.



The essence of this solution is that to the battery unit is added to another about the same block, after which they are used interchangeably, providing energy as the house, and (most importantly!) - Then charged full "rest" of the block.This "push-pull" circuit is optimized by the criterion of cost recovery and almost no do not pay off the elements.

more the cost of the secondary battery unit are exclusively "investment" (as certainly pay off) - second unit greatly increases the life of the entire system, and, subject to a systematic "right" then charged both units creates real economic effect.

advantage of this scheme:
  • Both block battery may be different according to the residual resource, which means that it is possible for the results of the inventory of individual battery life to complete one block over "weak" batteries, and the other - more capacious furtherIt optimizes operation of the entire system.
  • SAP has built on the classic version is easy and almost no cost for materials described remade in push-pull configuration (by dividing one block into two batteries) - lack of - a part of the launch of the generator.

When creating the system from scratch that will be no shortage - will be doubled (to pay off) the capacity of the battery.

Discussion specialists convince Andrew correctness of the decision passed at the forum "Home and Cottage."

Notes:
  • as a switch, of course, you can use the relay, then the whole circuit will work automatically.
  • Scheme volts and amp-hours are for illustrative purposes only.

Posted party forum "Home and Cottage" Andrei A.
Editor: Roman Adamov