電氣自動(dòng)化外文及翻譯-電氣類-資料下載頁(yè)
2025-05-11 20:09本頁(yè)面
【導(dǎo)讀】本文譯者就電池充電技術(shù)一文進(jìn)行了翻譯。業(yè)設(shè)計(jì)外文翻譯要求。術(shù)開發(fā)，目的是為了有效地讓脈沖充電方法運(yùn)用在高容量電池中。其中一個(gè)猜想就是,脈沖充電可以而且應(yīng)該在大規(guī)模應(yīng)用領(lǐng)域中的。真正的硬件實(shí)驗(yàn)展示證實(shí)了脈沖充電的有效性方式。個(gè)智能充電方法的提出和評(píng)價(jià)，第4節(jié)提出了新的“分而治之”脈沖充電方法，的形成構(gòu)成電池，從而減少長(zhǎng)期損害電池。這個(gè)名字來(lái)自一個(gè)在脈沖充電周期中不能充電的非常簡(jiǎn)短的的時(shí)刻（最佳。圖1.-典型的脈沖充電周期。美國(guó)航天局通過(guò)對(duì)各。電容量滿為止，脈沖充電和打嗝充電，會(huì)縮短電池的使用壽命。盡管大部分被業(yè)界忽視，脈沖充電，正在慢慢擴(kuò)展到消費(fèi)市場(chǎng)。脈沖充電維持在較的小規(guī)模。脈沖充電應(yīng)用包括：政府便攜式電子設(shè)備如：警察。和消防隊(duì)員對(duì)講機(jī)機(jī)構(gòu)，無(wú)線電對(duì)講機(jī)，專用工具，并利用有限消費(fèi)類電子產(chǎn)品，由于目前的文獻(xiàn)表明，脈沖充電已經(jīng)過(guò)測(cè)試和驗(yàn)證，其優(yōu)越于傳統(tǒng)的電流法。在一個(gè)更大的電池情況下，它只是
【正文】 ng the rest time after the discharge. The relationship between the battery capacity and charge time is proposed to have a logarithmic correlation. This relationship is shown below in Figure 2. Figure 2. Charge Cycle Time and Battery Capacity Relationship Charge cycle time can then be calculated as follows: 2)_(log_10?=mAinTCapacityBatteryC Where CT = chargecycle time. Individual time slices within the charge cycle can be calculated using: srestondarysedischsrestinitialsechCCCC4_sec3arg2_1argατατατατ ==== Where ∝ 1 = , ∝ 2 = , ∝ 3 = , ∝ 4 = Therefore, a 1000 mA capacity battery has cycle time of 1 second, τ charge= 980μ s, τinitial rest= 5μ s, τ discharge= 5μ s, τ secondary rest= 10μ s. A 10,000 mA battery will have twice as long charge cycle time and time slices. The Divide and Conquer Approach to Charging a HighCapacity Battery Pack Our proposed method for implementing pulsecharge in highcapacity batteries is to partition the battery pack into smaller sections (possibly already done to acmodate by the electronic requirement variations). This is shown in Figure 3. Figure 3. The Divide and Conquer Method to Charge a HighCapacity Battery Pack. A series of pulsechargers is then applied to charge these sections individually. The reasoning behind this method is that if a battery pack is prised of individual cells, the cells’ characteristics are not identical hence may not charge/discharge at a uniform rate as the pack is in used. Therefore, breaking the pack into smaller sections and charged individually with an intelligent charger allows them to be conditioned correctly and more uniformly. Charging individual sections as shown above is proposed as the better method to charge a high capacity battery pack. However, implementation of this method is more plicated and expensive than charging the pack as a whole. Additional control logic needs to be implemented to keep the chargers’ inputs and multiple load outputs to maintain efficiency. 5. Conclusion Advances in advanced battery charging technology have been numerous, including the development of the battery conditioning concepts, intelligent fast charging, and pulse charging. Pulse charging bined with intelligent control yields many advantages over conventional methods in maintaining battery capacity as well as extending battery life. This paper proposes a new divide and conquer method to charge small sections of highcapacity battery pack, which was experimentally shown to be more efficient than charging the whole battery pack simultaneously. Applications of this new battery charging method are currently being explored. Future work includes testing out the proposed methods on real highcapacity batteries such as the hybridelectric motor used in automobiles. Acknowledgements The authors would like to thank George Sage . (Pulse Power Inc.), Dave Whitmer (Galaxy Power Inc) and Andy Crick (ARCS lab mentor) for their insight and ments on this work. References Darcy – Eric C. Darcy, “Investigation of the Response of NiMH Cells to Burp Charging,” A Dissertation Presented to the Faculty of the Chemical Engineering – University of Houston, December 1998. Eric C. Darcy, “Burp Charging Nickel Metal Hydride Cells,” NASA – Johnson Space Center, October 1995. T. J. Liang, T. Wen, K. C. Tseng, J. F. Chen, “Implementation of Regenerative Pulse Charger Using hybrid BuckBoost Converter,” Proceedings of IEEE 4th International Conference on Power Electronics and Drive Systems, Oct. 2020 K. C. Tseng, T. J. Liang, J. F. Chen, M. T. Chang, “High Frequency Positive/Negative Pulse Charger with Power Factor Correction,” Power Electronics Specialists Conference, IEEE, June 2020. David Whitmer, “Makita Cycling NiMH – Comparison Using Makita DC1411 Charger,” Galaxy Power Inc., 2020.
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