Ɔkwan Bɛn so na Wobɛkari pɛ wɔ Batere a ɛwɔ lead-acid mu?

Bokiti Nkɛntɛnso: Nsu dodow a bokiti betumi akura mu no gyina ne poma tiawa sen biara so.

In the realm of batteries, the Buckets Effect is observed: The performance of a battery pack depends on the cell with the lowest voltage. Sɛ voltage balancing no nyɛ papa a, adeyɛ no ba sɛ battery no ayɛ charge koraa wɔ bere tiaa bi a wɔde charge no akyi.

Ɔkwan bɛn so na wobedi asɛm a ɛfa batere ahoɔden a ɛkari pɛ ho no ho dwuma na wɔatrɛw wɔn nkwa nna mu?

Amammerɛ kwan a Wɔfa so Yɛ: 

Nsaano a wɔde hwɛ bere ne bere mu de hu batere a ahoɔden sua na wɔde batere a ahoɔden sua no charge mmiako mmiako.

Ɔkwan a Wɔfa so Yɛ Nyansa: 

BMS (Battery Management System) no wɔ adwuma a ɛkari pɛ a ɛyɛ adwuma a ebetumi akari pɛ wɔ ahoɔden a ɛwɔ mu bere a wɔrebɔ charge ne nea ɛrefi mu no.

Automatic balancing no bi ne active ne passive kari pɛ.

Active balancing no bi ne charge-based ne ahoɔden-transfer-based balancing.

Active Balancing (Egyina Ahoɔden a Wɔde Kɔma Nnipa So):

Wɔnam ahoɔden a wɔde kɔ baabi foforo a enni adehwere so na ɛyɛ kari pɛ, kyerɛ sɛ, wɔde ahoɔden fi nkwammoaa a ahoɔden kɛse wom mu kɔ nea ahoɔden a ɛba fam wom mu, na ɛma ahoɔden nyinaa kari pɛ a ahoɔden a wɔhwere kakraa bi na ɛba; enti, wɔsan frɛ no kari pɛ a enni adehwere.

 

Mfaso:  Ahoɔden a wɔhwere kakraa bi, adwumayɛ a ɛkɔ soro, bere tenten, mprempren kɛse, nkɛntɛnso ntɛmntɛm.

Mfomso:  Ɔmansin a ɛyɛ den, ɛho ka yɛ den.

Active Balancing (Egyina Charging-Gyina):

DC/DC tumi module bi wɔ monitoring cell sensor biara mu. Wɔ float charging mu no, module no de voltage a ɛba fam koraa charge cell no ma ɛma ne charge kɔ soro kosi sɛ ebedu voltage balance a wɔahyɛ no ho.

 

Mfaso a ɛwɔ so:  Targeted charged ma cells a enni charge anaasɛ ɛnyɛ adwuma yiye.

Mfomso:  Ɛka kɛse esiane hia a ehia sɛ wɔde DC/DC tumi module ahorow di dwuma nti, asiane a ɛwɔ hɔ sɛ wɔbɛbɔ ka boro so (ebetumi aba sɛ wɔansusuw ho yiye), ɛho ka a ɛkɔ soro wɔ nsiesie ho esiane mmeae a ebetumi adi huammɔ nti.

Passive Balancing (Egyina Nneɛma a Wɔde Fi Afiri Mu So):

Mpɛn pii no, passive balancing hwehwɛ sɛ wɔma nkwammoaa a ahoɔden kɛse wom fa resistors so, gyae ahoɔden a ɛte sɛ ɔhyew na ama wɔanya ahoɔden a ɛkari pɛ nyinaa, na ɛnam so ama nkwammoaa afoforo anya bere pii a wɔde bɛbɔ ka bere a wɔrebɔ ka no.

 

Mfaso:  Low discharge current, mfiridwuma a wotumi de ho to so, ɛho ka sua.

Mfomso:  Bere tiaa a wɔde fi nsu mu, nkɛntɛnso a ɛyɛ brɛoo.

Sɛ yɛbɛbɔ no mua a, mprempren BMS a wɔde yɛ lead-acid batere dodow no ara fa passive balancing. Daakye, Dfun de hybrid balancing bɛba, a ɛma cells a ɛwɔ ahoɔden kɛse denam dischargeging so ne cells a ɛwɔ ahoɔden a ɛba fam denam charging so kari pɛ.