In order to overcome this problem , i bring forward the task that named “ intelligent patrol system among storage batteris of stand - alone pv power station based on dsp ” . this system can combine with the working stand - alone pv power station perfectly , and can patrol every storage battery of the storage battery group that used in pv station . if the voltge , current and temperature of one battery is not in good state , the system will give alarm in time . if one battery will be bad soon , the system will give alarm too 为了克服充放电控制器对单个蓄电池不能检测的缺点,特提出研究开发基于dsp的离网太阳能电站蓄电池智能巡检系统。该系统可与当前离网太阳能电站完美结合,完成对蓄电池组中每一块电池的循环检测,如果单个蓄电池充电电压、温度、充电电流出现异常,及时报警,以使蓄电池处于更好的工作状态,提高蓄电池使用寿命。
In this dissertation , firstly , characteristics of no - load overhead line and processes of switching no - load overhead line by circuit - breakers are analyzed , then , transient recovery voltage across circuit - breaker are calculated emphatically and the factors of affecting transient recovery voltage are analyzed 这就要求断路器具有良好的开合空载架空线路的能力。实验室进行开合线路充电电流试验是考核断路器开合空载架空线路性能的重要手段，通过试验可以优化断路器的设计、提高断路器开合空载架空线路性能。
Initial recovery voltage and peak recovery voltage across the circuit - breaker have an essential affect on re - strike . for assessing performance of circuit - breaker , the higher inductance and lower inductance must be considered at the same time when testing according to theoretic analysis , the directly test circuit on switching the no - load overhead by high - voltage circuit breakers of rated voltage 252kv and below , in compliance with the correlative standard jb5871 and the test devices , and the test circuit parameters have been calculated and the many testes have been carried out 在理论分析的基础上，考虑实验室现有设备的情况依据标准jb5871的规定，选用合适的试验设备，对试验线路的参数进行计算，在实验室建立了252kv及以下电压等级断路器开合线路充电电流直接试验线路，利用该线路进行了数台产品的试验，分析了试验结果，并根据试验结果和理论基础讨论了gb t1984 - 200 《交流高压断路器》 (报批稿)关于开合线路充电电流试验的有关规定。
Many experiments on the effects with the change of several parameters , such as initial charging current , amplitude and frequency of positive pulses , variety of the amplitude of positive pulses among each charging stages , amplitude and duration of negative pulses , duration between positive and negative pulses , have been performed . the results of analysis and comparison of experimental data verify the validity and feasibility of the fast - charging method . on this basis , a new type of control strategy is advanced 就充电过程中的起始充电电流、正脉冲的幅值、正脉冲的频率、各充电级之间正脉冲幅值的变化幅度、负脉冲的幅值、负脉冲的持续时间、正负脉冲之间的停歇时间等几个参数进行了大量的实验,对实验数据进行分析和比较,验证了快速充电方法的有效性和可行性,在此基础上提出了一种新型快速充电控制策略。
The products is of high water hydrophobe device usedin suitable and has the characteristics of aging resistance , resistance , tracking resistance , and corrosive resistance . it can withstand high bent load , strong impact force fn12 - 12 series indoor use high voltage load switch fn12 - 12 and fn12 - 12r is of three phases indoor use ac high voltage load switch for breaking and making the circuit of 50hz , 12kv system under rated loading Fn12 - 12和fn12 - 12r组合电器是额定电压12kv额定频率50hz的三相高压开关设备用于分合负荷电流闭环电流空载变压器和电缆充电电流关合短路电流配装接地开关的负荷开关，可以承受短路电流
The hspice simulation results indicate that the charging current is up to 2a and the precision of termination voltage is very high with the error only around 10 - 3 . the efficiency is approximate 68 % when the ic is powered by fix voltage source and up to 95 % when the ic is powered by current limited source Hspice仿真结果表明,该芯片恒流模式下最大充电电流为2a ;对充电终止电压的控制精度高达10 - 3 ;当采用恒压作为电源时,充电效率为68 %左右;当采用具有电流限制功能的电源时,充电效率可达到95 % 。
Constrained to technologies , the lead - acid battery mainly adopted traditional charging methods such as constant voltage , constant voltage with current limitation , constant current , etc . the charging current of these methods cannot match efficiently the acceptance curve of the lead - acid battery proposed by j . a . mas . as a result , some of these methods have a low time efficiency and incompleteness charging . and some of them lead to overcharge and gas - generation , which will result in low - efficiency , time - consuming and prone - to - damage of the charging operation 铅酸蓄电池由于受到技术条件的限制,其充电主要采用恒压、恒压限流、恒流等常规充电模式,这些方法的充电电流未能有效的遵从马斯所提出的可接受充电电流曲线,因而有的充电方法时间效率低、充电不完全;有的则存在着过充电和析气等现象,并导致充电过程的低效,耗时和易损。
The paper proposes a method that combines " mass law " - - acceptable charging current with technology of solar photovoltaic array ' s maximum power point tracking in stand - alone photovoltaic system . it realizes a efficient charging management of vrla storage battery . and fuzzy hierarchical control technology is applied to the depolarization control 提出在独立光伏系统中采用“马斯定律”可接受充电电流和太阳能光伏阵列最大功率跟踪相结合的方法，对系统中vrla蓄电池进行高效充电管理，并采用模糊递阶控制技术来实现去极化控制，实现系统能量最大利用。
In this background , this promotes the research of communication power network monitor and control system the main function o f this system is to monitor the value of charge battery voltage release battery voltage charge electric current release electric current battery resistance , battery volume humidity temperature of storage battery , at the same time , this system may transmit test data to remote distance by telecommunications network , by this way , this system will realize central local monitor and control simultaneously of communication power 正是在这样的背景下，才进行了通信电源网络测控系统的开发。本测控系统的主要功能是监测蓄电池的充电电压、放电电压、充电电流、放电电流、电池内阻、电池容量、温度、湿度等参数。同时也可以通过电信网络进行测试数据的远距离传输，同时实现通信电源的集中与本地监控。
From the model , we can solve and gain the values and change orders of charging current , charging voltage , discharging current , discharging voltage and inductive current . after that , the electromagnetic fields can be created from two circuits " currents , and their magnetic rector and flux can be simulated from ansys solver 用ansys multiphysics模块求解出充电电流、充电电压、放电电流、放电电压和感应电流以及这些参数随时间变化的规律：然后利用两个回路的电流耦合出电磁场，并仿真出磁矢量、磁通密度。
