inthlauhna hriatthiam Internal resistance leh impedance hi UPS battery, BMS system, power electronics hmanga hnathawk tu tan pawh a pawimawh hle. Inthlenga hman fo laiin, a bulpui berah chuan electrical property hrang hrang an entir a – pakhat chu DC circuit tan, pakhat chu AC tan a ni. He kaihhruaina hian battery enkawlna atana thil tangkai tak tak nena khaikhin chiang tak, technical lama tehkhin thu a pe a ni.
Internal resistance chu direct current (DC) pek a nih chuan battery chhunga current kal dan dodalna a ni. Electrolyte, electrode leh internal connection te dodalna atanga lo chhuak a ni. Internal resistance hi number tak tak (eg, 5.3 mΩ) a ni a, frequency nen a danglam lo. Battery hriselna tilangtu pawimawh ber pakhat a ni – internal resistance tihpun hian sulfation, grid corrosion, emaw capacity hloh emaw a hriattir fo thin.
Impedance chu circuit pakhata alternating current (AC) dodal zawng zawng a ni. Resistance (real part) leh reactance (imaginary part, capacitance leh inductance atanga lo chhuak) te a huam vek a ni. Impedance hi frequency-ah a innghat a, complex number (R + jX) anga tarlan a ni. Battery monitoring-ah hian AC impedance tehna hmangin battery discharge lovin a chhung lam characteristics te chu an evaluate thin.
Table 1: Electrical engineering lama internal resistance (DC) leh impedance (AC) inkara danglamna pawimawh tak tak.
| Electrical property chungchang lam hawi | Internal Resistance (R) | Impedance (Z) 1.1. |
|---|---|---|
| Circuit Dilna siam a ni | Direct current (DC) hmanga hnathawk circuit-ah hman a ni ber. | Alternating current (AC) atana siam circuit-ah hman a ni ber. |
| Circuit-a awm a ni | Alternating current (AC) leh direct current (DC) circuit-ah te pawh hmuh theih a ni. | Alternating current (AC) circuit-ah chauh a awm a, DC-ah a awm lo. |
| Chawrchhuahna | Electric current kal dan tibuaitu element atanga lo chhuak a ni. | Electric current do thei leh react thei element hrang hrang inzawmkhawm atanga lo chhuak a ni. |
| Numerical Expression hmanga sawi chhuah | Definitive real number hmanga sawi chhuah, entirnan, 5.3 mΩ. | Number tak tak leh imaginary component pahnih hmanga sawi chhuah, R + jX hmanga entir a ni. |
| Frequency a innghahna | DC current frequency eng pawh nise a value chu a awm reng a ni. | A value hi AC current frequency inthlak danglam dan azirin a inthlak danglam thin. |
| Phase ziarang (Phase) ziarang | Phase angle emaw magnitude attribute emaw a lantir lo. | Phase angle leh magnitude chiang tak pahnih hmanga hriat theih. |
| Electromagnetic Field-a awm dan | Electromagnetic field-a a awm chuan power dissipation chauh a lantir. | Power dissipation leh electromagnetic field-a energy dahkhawm theihna pahnih a lantir. |
Tunlai Battery Management System (BMS) ah chuan battery hriselna thlalak kimchang tak siam turin internal resistance leh impedance pahnih hi enfiah a ni. Internal resistance sang chho zel hi degradation a nih thu hriattirna hmasa a ni a, impedance spectroscopy hmangin internal chemical inthlak danglamna a lang thei bawk. DFUN BMS hian precision AC measurement method hmangin internal resistance trends te chu a track a, anomalies te chu a hlawhchham hmain a hmuchhuak thin.
DFUN BMS hian battery cell tinah fixed-frequency AC current a pe a, a chhuak voltage tlahniam chu a teh thin. Internal resistance hi Ohm’s law hmanga chhut a ni a, a dikna chu ±1-2% a ni. Hetiang method hi non‐invasive a ni a, battery disconnect a ngai lo va, predictive maintenance atan real-time data a pe bawk.
Internal resistance (R) hi DC property a ni a, current flow dodaltu a ni a, impedance (Z) erawh chu AC property a ni a, resistance leh reactance pahnih a huam thung.
Internal resistance sang chho zel hi battery chhiatna, sulfation leh capacity hlohna tilangtu hmasa ber pakhat a ni.
DFUN BMS hian fixed-frequency AC current injection method hmangin internal resistance chu 1-2% dik takin a teh a, battery hnathawh a titawp lo.
