共查询到19条相似文献，搜索用时 156 毫秒
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以EPC-8900作为开发平台,使用C++进行编程,配合不同模块,初步开发了一套基于EPC-8900的电池管理系统,可与上位PC、下位电池测量模块结合,成为一个电池储能电站的综合管理平台。测试结果表明,该系统已实现电池管理系统的AD采样、CAN通信、数据传递等基本功能。 相似文献
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沈国强 《河北理科教学研究》2006,(4):64-66
在2006年各地的高考试题中,电池问题仍然是考查的热点．随着对化学电池研究的不断深入,安全性好、储能量高、应用广泛、利于环保等多种优点的电池得到不断地开发,所以高考中电池问题的考查内容更加丰富,形式更加新型独特．那么如何灵活运用氧化还原反应原理和电池的基本知识来分析新信息,解决新问题,本文就针对2006年高考中出现的电池试题作一全新透视． 相似文献
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电池储能技术在可再生能源电站并网中的应用综述 总被引：1，自引：0，他引：1
吴中华 《南通职业大学学报》2014,(2):94-99
与常规能源电站不同,可再生能源电站的出力具有间歇性和波动性,其大规模并网将对电网产生一系列的负面影响。文章在现有研究成果的基础上,总结了主流电池技术的特性,以及电池储能系统BESS在可再生能源电站并网中的应用现状,并对其应用前景和进一步的研究工作进行了展望。研究表明：电池储能系统可显著改善可再生能源电力固有的间歇性,实现对可再生能源电力的有效调度,且能平滑可再生能源发电系统的功率波动,降低其对电能质量和电网稳定运行的不利影响。因此,BESS具有广阔的应用前景,应继续加强对降低电池成本以及大型电池储能系统的集成、运行技术等的相关研究。 相似文献
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本研究以全钒液流电池储能系统为研究对象,通过电力系统分析综合程序建立了包含能量限制模块的全钒液流电池储能系统模型。综合考虑了储能系统换流器的容量大小、荷电状态等因数,通过仿真分析对比两种控制策略以及模型在不同大小的储能电池中的适用性,验证了理论分析的准确性及模型的工程实用性。仿真结果表明,该模型既能通过限制无功功率传输保证传输的能量不超出换流器容量,又能根据实际有功功率大小调整无功功率上限,充分发挥储能系统的调节作用。 相似文献
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作为一种具有发展前景的新型储能电池，“液流电池”近些年多次出现在高考化学试题中.本文介绍了液流电池的基本装置及工作原理，对近些年高考化学试题中的液流电池进行了分析和解读，提出了重视基本原理、引导情境分析、建构知识模型等复习备考建议. 相似文献
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The charging characteristics of the valve-regulated lead acid (VRLA) battery driven by solar energy were experimentally studied
through the pressure-control method in this paper. The aims of the research were to increase charging efficiency to make the
most of solar energy and to improve charging quality to prolong life of battery. The charging process of a 12 V 12 A·h VRLA
battery has been tested under the mode of a stand-alone photovoltaic (PV) system. Results show that the pressure-control method
can effectively control PV charging of the VRLA battery and make the best of PV cells through the maximum power point tracking
(MPPT). The damage of VRLA battery by excess oxygen accumulation can be avoided through the inner pressure control of VRLA
battery. Parameters such as solar radiation intensity, charging power, inner pressure of the battery, and charging current
and voltage during the charging process were measured and analyzed. 相似文献
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全钒氧化还原液流电池全自动智能监控系统研究与设计 总被引：1，自引：0，他引：1
为满足全钒氧化还原液流电池（VRB）研究需要，根据VRB特点设计研制了测控系统。对VRB充放电过程进行实时在线检测，具有数据采集、数据报表、系统报警的计算机远程监控功能。通过引入电池过程参数，判断充放电终点，对VRB电池充放电状态进行自动切换。实验结果表明该系统稳定可靠，符合VRB电池特点，满足电化学储能研究与工程放大的需求，为现代化学工程实验教学装置建设提供示范。 相似文献
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原有的冗余电池组电池管理算法采用的直接切换或等时间间隔切换算法,都存在不能使电池组放电达到尽可能大等问题。为了充分挖掘电池组冗余条件下的续航能力,提出新的冗余电池组管理算法。通过对剩余电量的冗余组合最大值估算法,推算出冗余电池组的置换顺序和时间点,实现冗余电池组的最佳算法。文章讨论了该算法的可行性,并给出理想条件下的模拟实验,最后分析了模拟实验结果。 相似文献
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Xiayue Fan Bin Liu Jie Liu Jia Ding Xiaopeng Han Yida Deng Xiaojun Lv Ying Xie Bing Chen Wenbin Hu Cheng Zhong 《天津大学学报(英文版)》2020,26(2):92-103
Grid-level large-scale electrical energy storage(GLEES) is an essential approach for balancing the supply–demand of electricity generation, distribution, and usage. Compared with conventional energy storage methods, battery technologies are desirable energy storage devices for GLEES due to their easy modularization, rapid response, flexible installation, and short construction cycles. In general, battery energy storage technologies are expected to meet the requirements of GLEES such as peak shaving and load leveling, voltage and frequency regulation, and emergency response, which are highlighted in this perspective. Furthermore, several types of battery technologies, including lead–acid, nickel–cadmium, nickel–metal hydride, sodium–sulfur, lithium-ion, and flow batteries, are discussed in detail for the application of GLEES. Moreover, some possible developing directions to facilitate efforts in this area are presented to establish a perspective on battery technology, provide a road map for guiding future studies, and promote the commercial application of batteries for GLEES. 相似文献
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Xie Zhiyuan Du Liang Lv Xiaojun Wang Qing Huang Jianglei Fu Tianyi Li Shengyue 《天津大学学报(英文版)》2020,26(3):228-235
Interest in the development of grid-level energy storage systems has increased over the years.As one of the most popular energy storage technologies currently available,batteries offer a number of high-value opportunities due to their rapid responses,flexible installation,and excellent performances.However,because of the complexity,multifunctionality,and wide deployment of power grids,trade-offs in battery performance exist,especially when considering economics,environmental effects,and safety.Therefore,establishing a comprehensive assessment of battery technologies is an urgent undertaking.In this work,we present an analysis of rough sets to evaluate the integration of battery systems(e.g.,lead-acid batteries,lithium-ion batteries,nickel/metal-hydrogen batteries,zinc-air batteries,and Na-S batteries) into a power grid.Specifically,technological properties,economic significance,environmental effects,and safety of these battery systems are evaluated on the basis of rough set theory.In addition,some perspectives are provided to promote the development of battery technologies for grid-level energy storage. 相似文献
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黄正军 《金华职业技术学院学报》2013,13(3):48-52
随着能源及环保问题的日益加剧,各国都在大力发展电动汽车。然而电池技术的不成熟,特别是电池成组使用时的不一致性成为制约电动汽车发展的最大瓶颈。为了均衡电池组单体存在的差异性,提高电池组的整体性能,分析了几种常见的电池组均衡电路的优缺点,从中选出一种均衡方案,对电池组进行均衡管理和控制,以达到良好的均衡效果,提高串联电池组的整体性能。 相似文献
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Chang-wen Zheng Shi-yao Zhou Zi-qiang Chen Yun-long Ge De-yang Huang Jian Liu Qi Yang 《浙江大学学报(A卷英文版)》2018,19(10):774-785
A lithium-ion polymer battery cell is an ideal energy source for underwater vehicles due to its high energy density and small volume. However, the performance of lithium-ion batteries in a 10 000 m deep sea is still unknown and is of particular concern in the design of 10 000 m autonomous remote vehicles (ARVs). In this paper, we explore how the external characterizing parameters of a LiFePO4 polymer battery during discharge are affected by a high pressure of 100 MPa and low temperature of 3 °C for simulating the conditions experienced in a 10 000 m deep sea environment. An unscented Kalman filter (UKF) algorithm is applied to estimate the state of charge (SoC) of a battery to investigate the influence of high hydrostatic pressure on SoC estimation due to changes in parameters. The results indicate that the LiFePO4 polymer battery works under 100 MPa hydrostatic pressure, but its parameters change obviously and influence SoC estimation. SoC estimation accuracy was improved through compensating the functions of open circuit voltage (OCV) versus the state of charge (OCV-SoC) of the battery in a 100 MPa hydrostatic pressure and a low temperature environment. 相似文献