CN109494834B - 城轨超级电容储能***充放电阀值模糊推理动态设定方法 - Google Patents
城轨超级电容储能***充放电阀值模糊推理动态设定方法 Download PDFInfo
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Abstract
本发明针对城轨超级电容储能***的动态调节和协调控制的问题,提出一种城轨超级电容储能***充放电阀值模糊推理动态设定方法,本发明提出的基于模糊推理,三个输入‑四个输出Mamdani型模糊推理器,将选取牵引车辆在供电区段内与储能装置b距离L和超级电容荷电状态(SOC)作为模糊推理的输入,将电压动态阈值作为输出。将L和SOC值模糊化,选取适合的模糊论域和隶属函数,根据经验或者实验数据编写模糊规则,进行模拟或者仿真,输出量进行模糊清晰化,以此输出一个清晰值。利用模糊推理,不仅能使牵引网电压具有稳压作用,还具有良好的节能效果。模糊推理***的鲁棒性强,参数变化对控制效果的影响被大大减弱。
Description
技术领域
本发明涉及的是一种超级电容充放电领域的控制方法,具体的说 就是一种城轨超级电容储能***充放电阀值模糊推理动态设定方法。
背景技术
随着城市化建设的不断推进和人口的急剧增长,城市交通拥堵, 机动车尾气污染严重,在全球大力倡导开发清洁能源,各国也在寻求 和规划打造新的都市交通布局。城市轨道交通清洁环保,主要以电能 作为驱动,目前轨道交通主要有地铁,轻轨,磁悬浮列车。而在轨道 交通中启动加速会消耗大量的能量,而制动减速会产生大量能量,如 何利用储能元件回收这些制动能量成为轨道交通节能的重要研究内 容。目前主要存储能量有电池、超级电容和飞轮等,而超级电容具有 功率密度高,充放电相应速度快受到广泛的关注和应用。
传统城轨储能***双闭环控制结构是基于直流牵引网压波动变 化直接反映到列车运行状态,通过设定固定的充放电电压阈值和实时 检测牵引网压变化决定超级电容储能***工作模式,具有控制监督、 响应速度快等优点。传统储能***控制策略由牵引网电压环,模式切 换模式,和冲放电电流环等控制环节,控制***采用电压外环和电流 内环双闭环串级结构的控制策略,是目前主要也是基础的控制策略。 本发明在传统策略基础上提出基于模糊推理的动态调节的协调控制 储能***能量管理策略,利用模糊推理,运用语言表达,建立模糊规 则,使牵引车辆能根据供电区段内与储能装置距离L(与区间终点b 距离,牵引车辆到a、b储能***的距离和为D)、超级电容荷电状态 (SOC)的实时运行状态自行改变电压阈值,使超级电容在保护电容本 身的前提下,能更合理的利用超级电容释放和吸收能量,节约能源。
发明内容
技术问题:在牵引车辆运行工具中,超级电容是其储能元件。但 在超级电容储能***中,超级电容充放电电压的阈值一般固定设定, 使其不能根据运行状态自行调整,这种充放电电压阈值的设定具有局 限性,不能很好保护超级电容和充分发挥超级电容的能力。
技术方案;为了解决上述问题,可以将模糊推理应用到充放电压 阈值得计算中,使其更好根据城轨运行状态调整电压阈值的设定,更 好地发挥超级电容的作用。对于城轨超级电容储能***而言,其充电 阈值、放电阈值与列车初始设置电压阈值、控制参数、运行距离和超 级电SOC有关。对于超级电容***的电压阈值设定,可以利用模糊推 理,采用mamdani型模糊推理***,三个输入四个输出模式,设某一 供电区间内两个储能***(假设a储能***、b储能***)之间距离 为D,在此区间进行—加速、惰行、制动,根据超级电容SOC,根据 经验和数据,归纳模糊规则,进行电压阈值的动态控制,使其更好实 时根据运行状态,调整电压阈值。
本发明是根据传统动态调节和协调控制的储能***能量管理策 略,基于直流牵引网压波动变化直接反应列车运行状态,通过设定充 放电电压阈值,和实时检测牵引网电压变化决定超级电容储能***工 作模式。
本发明提出的城轨超级电容储能***充放电阀值模糊推理动态设定 方法,由上述可知,牵引车辆在供电区段内与储能装置b的距离L, a、b两个储能超级电容SOCa、SOCb作为模糊推理输入,电压阈值Uchar-a (a储能***充电阈值)、Uchar-b(b储能***充电阈值)、Udis-a(a储 能***放电阈值)、Udis-b(b储能***放电阈值)作为输出。
本发明提出的基于模糊推理控制算法,主要包括隶属函数选择、 隶属函数表达式、模糊论域确定、确定模糊子集和建立模糊推理规则。
1.模糊推理的隶属函数选择,模糊论域和模糊子集确定:
SOCa a储能***选定三个模糊子集:S(小)、M(适中)、 B(大)SOCb b储能***选定三个模糊子集:S(小)、M(适中)、 B(大)
L选定三个模糊子集:S(小)、M(适中)、B(大)
a储能***超级电容充电电压阈值Uchar-a,选定四个模糊子集:
SS(非常小)、S(小)、M(适中)、B(大)
b储能***超级电容充电电压阈值Uchar-b,选定四个模糊子集:
SS(非常小)、S(小)、M(适中)、B(大)
a储能***超级电容放电电压阈值Udis-a,选定四个模糊子集:
SS(非常小)、S(小)、M(适中)、B(大)
b储能***超级电容放电电压阈值Udis-b,选定四个模糊子集:
SS(非常小)、S(小)、M(适中)、B(大)
SOCa模糊论域[0 1]
SOCb模糊论域[0 1]
L模糊论域[0 1]
Uchar-a、Uchar-b、Udis-a、Udis-b模糊论域[0 1]
其中为使各输入和输出实际论域和模糊集合论域一致,需要 将实际论域转化为模糊集合论域,在此引入量化因子,Ksoc为超 级电容荷电状态量化因子、KL为运行区间距离量化因子、Kchar超 级电容充电阀值量化因子、Kdis超级电容放电阀值量化因子。 L、SOCa、SOCb、Uchar-a、Uchar-b、Udis-a、Udis-b隶属函数采用三 角函数公式或高斯型函数公式:
要求a≤b≤c a、b、c分别为隶属度左、中、右坐标,x为输 入值。边缘隶属函数采用半梯形隶属函数,既a或c为最边缘坐标则 a(c)到b段的隶属函数值为1.
其中,c隶属函数中心的位置,σ为隶属函数曲线的宽度
2.模糊推理运算方式:
与方式算法—取小
或方式算法—取大
蕴涵算法—取小
综合—各条规则结果的模糊子集取“并”
清晰化—面积中心算法
3.模糊推理规则:
If(SOCa is S)and(L is S)and(SOCb is S)then(Udis-b is S)(Uchar-b is SS)(Udis-a is M)(Uchar-a is S)(1)
If(SOCa is S)and(L is S)and(SOCb is M)then(Udis-b is S)(Uchar-b is M)(Udis-a is M)(Uchar-a is S)
If(SOCa is S)and(L is S)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is B)(Uchar-a is SS)
If(SOCa is S)and(L is M)and(SOCb is S)then(Udis-b is S)(Uchar-b is SS)(Udis-a is S)(Uchar-a is SS)
If(SOCa is S)and(L is M)and(SOCb is M)then(Udis-b is S)(Uchar-b is M)(Udis-a is M)(Uchar-a is SS)
If(SOCa is S)and(L is M)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is B)(Uchar-a is SS)
If(SOCa is S)and(L is B)and(SOCb is S)then(Udis-b is M)(Uchar-b is S)(Udis-a is S)(Uchar-a is SS)
If(SOCa is S)and(L is B)and(SOCb is M)then(Udis-b is SS)(Uchar-b is M)(Udis-a is M)(Uchar-a is SS)
If(SOCa is S)and(L is B)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is B)(Uchar-a is SS)
If(SOCa is M)and(L is S)and(SOCb is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is S)(Uchar-a is M)
If(SOCa is M)and(L is S)and(SOCb is M)then(Udis-b is SS)(Uchar-b is SS)(Udis-a is S)(Uchar-a is S)
If(SOCa is M)and(L is S)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is M)(Uchar-a is B)
If(SOCa is M)and(L is M)and(SOCb is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is S)(Uchar-a is S)
If(SOCa is M)and(L is M)and(SOCb is M)then(Udis-b is S)(Uchar-b is S)(Udis-a is S)(Uchar-a is S)
If(SOCa is M)and(L is M)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is S)(Uchar-a is SS)
If(SOCa is M)and(L is B)and(SOCb is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is S)(Uchar-a is S)
If(SOCa is M)and(L is B)and(SOCb is M)then(Udis-b is S)(Uchar-b is S)(Udis-a is SS)(Uchar-a is SS)
If(SOCa is M)and(L is B)and(SOCb is B)then(Udis-b is S)(Uchar-b is B)(Udis-a is SS)(Uchar-a is SS)
If(SOCa is B)and(L is S)and(SOCb is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOCa is B)and(L is S)and(SOCb is M)then(Udis-b is S)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOCa is B)and(L is S)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is SS)(Uchar-a is M)
If(SOCa is B)and(L is M)and(SOCb is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOCa is B)and(L is M)and(SOCb is M)then(Udis-b is S)(Uchar-b is SS)(Udis-a is S)(Uchar-a is B)
If(SOCa is B)and(L is M)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is SS)(Uchar-a is B)
If(SOCa is B)and(L is B)and(SOCb is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOCa is B)and(L is B)and(SOCb is M)then(Udis-b is S)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOCa is B)and(L is B)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is SS)(Uchar-a is M)
城轨超级电容储能***充放电阀值模糊推理动态设定步骤如下(按 设定时间间隔T执行):
Step1:实时采集各相关运行数据L、SOCa、SOCb并通过量化因子转 换成模糊推理***输入。
Step2:运行模糊推理***得到相应的设定值Uchar-a、Uchar-b、Udis-a、 Udis-b
Step3:根据动态设定值进行协调控制
有益效果:本发明的模糊推理方法不仅结合了传统的电压电流的双闭 环控制***,同时对阈值的设定能根据之前模糊规则进行实时更改, 具有鲁棒性强特点,尤其适合于非线性、时变及纯滞后***的控 制。
附图说明
图1模糊推理***结构图
当牵引车辆运行在某一供电区间内的两个储能***(假设a储 能***、b储能***),在此区间进行—加速、惰行、制动,根据两 个超级电容SOC和实时运行到下一个储能装置的距离L做为输入, 根据模糊规则,通过模糊推理***,得到电压值,实时根据运行状态,调整电压阈值。
图2基于动态调节和协调控制的储能***能量管理策略控制原 理框图。
传统储能***控制策略由牵引网电压环,模式切换模块和充 放电电流环等控制环组成,控制***采用电压外环和电流内环双 闭环串级结构的控制策略。
(1)牵引网电压外环,牵引网电压环检测牵引网实时电压 Udc作为反馈,Udc与充放电电压阈值Uchar,Udis比较差值经PI 控制器调节输出储能***充放电电流指令值I* L
(2)储能***充放电电流内环,牵引网电压环输出的充放电 电流指令值I* L与反馈充放电电流IL比较差值经过PI控制器调节 输出控制双向DC/DC变换器开关管驱动脉冲信号。
图3储能***工作模式切换原理图
通过模糊推理得到模糊论域电压阀值,在通过量化因子可得到实 际电压阀值。在城轨牵引,惰性,制动时,此时储能***为了维持牵 引网电压平衡,会向电网释放能量,吸收能量。为了防止储能***电 压过高造成器件损坏,以及城轨***正常停运断电情况下储能***仍 能放电引起误动作,故储能***设置禁止模式状态。
列车牵引加速工况,牵引网电压Udc跌落至阀值Udis下限时,储 能***启动并工作至Boost升压斩波电路放电模式;列车制动减速工 况时,牵引网电压Udc被抬升至阀值Uchar上限时,储能***启动并 工作于Buck降压斩波电路充电模式;列车惰行工况,牵引网电压Udc波动很小,在Uchar和Udis范围内,储能***待机模式。
具体实施方式:
本发明提出的城轨超级电容储能***充放电阀值模糊推理动态 设定方法结合控制***结构图其具体实施方案详述如下。
1.牵引网电压外环将检测的牵引网实际电压和给定充放电电压 阈值比较差值经外环PI调节得到储能***参数充放电电流I* L;I* L与储能***实际反馈的充放电电流IL比较差值经电流内环PI调节, 通过PWM控制得到驱动BDC变换器开关器件的占空比。
2.在牵引区间进行,加速,惰行,制动。每一个过程,城轨的给 定的充放电阈值与运行的距离和此时超级电容容量所处的状态相关, 根据模糊推理算法得出相应的充放电阈值,从而协调两个储能***系 统控制。
1).模糊推理的隶属函数选择,模糊论域和模糊子集确定:
SOCa模糊隶属函数选取高斯型函数
选定三个模糊子集:S(小)、M(适中)、B(大)
SOCb模糊隶属函数选取高斯型函数
选定三个模糊子集:S(小)、M(适中)、B(大)
L模糊隶属函数选取高斯型函数
选定三个模糊子集:S(小)、M(适中)、B(大)
Uchar-a、Uchar-b、Udis-a、Udis-b模糊隶属函数选取高斯型函数
选定四个模糊子集:SS(非常小)、S(小)、M(适中)、B(大)
SOC-a模糊论域[0 1]
SOC-b模糊论域[0 1]
L模糊论域[0 1]
Uchar-a、Uchar-b、Udis-a、Udis-b模糊论域[0 1]
量化因子Ksoc=1、KL=1/100、Kchar=1/1300、
Kdis=1/1600
高斯型隶属函数表达式:
其中,c决定函数中心的位置,σ决定函数曲线的宽度
对于高斯型隶属函数中,SOCa中C选取:0.25、0.75、0.95 宽度σ分别为:0.4769、0.6559、0.7
SOCb中C选取:0.25、0.75、0.95宽度σ分别为:0.4769、 0.6559、0.7
L中C选取50、90、98宽度σ分别为:0.5、0.4836、 0.43
Udis-b中C选取0.1、0.32、0.6、0.8宽度σ分别为: 0.35、0.2547、0.4962、0.4987
Udis-a中C选取0.1、0.32、0.6、0.8宽度σ分别为: 0.35、0.2547、0.4962、0.4987
Uchar-b中C选取0.1 0.4 0.6 0.85宽度σ分别为:0.37、0.26、0.52、0.55
Uchar-a中C选取0.1 0.4 0.6 0.85宽度σ分别为:0.37、 0.26、0.52、0.55
其中X是位于[0 1]区间相应的输入值
2).模糊推理运算方式:
与方式算法—取小
或方式算法—取大
蕴涵算法—取小
综合—各条规则结果的模糊子集取“并”
清晰化—面积中心算法
3).模糊推理规则:
If(SOCa is S)and(L is S)and(SOCb is S)then(Udis-b is S)(Uchar-b is SS)(Udis-a is M)(Uchar-a is S)(2)
If(SOCa is S)and(L is S)and(SOCb is M)then(Udis-b is S)(Uchar-b is M)(Udis-a is M)(Uchar-a is S)
If(SOCa is S)and(L is S)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is B)(Uchar-a is SS)
If(SOCa is S)and(L is M)and(SOCb is S)then(Udis-b is S)(Uchar-b is SS)(Udis-a is S)(Uchar-a is SS)
If(SOCa is S)and(L is M)and(SOCb is M)then(Udis-b is S)(Uchar-b is M)(Udis-a is M)(Uchar-a is SS)
If(SOCa is S)and(L is M)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is B)(Uchar-a is SS)
If(SOCa is S)and(L is B)and(SOCb is S)then(Udis-b is M)(Uchar-b is S)(Udis-a is S)(Uchar-a is SS)
If(SOCa is S)and(L is B)and(SOCb is M)then(Udis-b is SS)(Uchar-b is M)(Udis-a is M)(Uchar-a is SS)
If(SOCa is S)and(L is B)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is B)(Uchar-a is SS)
If(SOCa is M)and(L is S)and(SOCb is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is S)(Uchar-a is M)
If(SOCa is M)and(L is S)and(SOCb is M)then(Udis-b is SS)(Uchar-b is SS)(Udis-a is S)(Uchar-a is S)
If(SOCa is M)and(L is S)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is M)(Uchar-a is B)
If(SOCa is M)and(L is M)and(SOCb is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is S)(Uchar-a is S)
If(SOCa is M)and(L is M)and(SOCb is M)then(Udis-b is S)(Uchar-b is S)(Udis-a is S)(Uchar-a is S)
If(SOCa is M)and(L is M)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is S)(Uchar-a is SS)
If(SOCa is M)and(L is B)and(SOCb is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is S)(Uchar-a is S)
If(SOCa is M)and(L is B)and(SOCb is M)then(Udis-b is S)(Uchar-b is S)(Udis-a is SS)(Uchar-a is SS)
If(SOCa is M)and(L is B)and(SOCb is B)then(Udis-b is S)(Uchar-b is B)(Udis-a is SS)(Uchar-a is SS)
If(SOCa is B)and(L is S)and(SOCb is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOCa is B)and(L is S)and(SOCb is M)then(Udis-b is S)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOCa is B)and(L is S)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is SS)(Uchar-a is M)
If(SOCa is B)and(L is M)and(SOCb is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOCa is B)and(L is M)and(SOCb is M)then(Udis-b is S)(Uchar-b is SS)(Udis-a is S)(Uchar-a is B)
If(SOCa is B)and(L is M)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is SS)(Uchar-a is B)
If(SOCa is B)and(L is B)and(SOCb is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOCa is B)and(L is B)and(SOCb is M)then(Udis-b is S)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOCa is B)and(L is B)and(SOCb is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is SS)(Uchar-a is M)
实施步骤:
根据超级电容SOCa、SOCb和牵引车辆在供电区段内与储能装置b 距离L,通过模糊推理规则表1、2输出在模糊集合论域的电压阈值。
Step1:实时采集各相关运行数据L、SOCa、SOCb并通过量化因子转 换成模糊推理***输入。
Step2:运行模糊推理***得到相应的设定值Uchar-a、Uchar-b、Udis-a、 Udis-b
Step3:根据动态设定值进行协调控制
城轨超级电容储能***采用电压电流双闭环控制***,电流采用 PI控制器并且还有SOC限流模块,在超级电容储能***正常工作于 充放电模式下,通过检测***的SOC值控制电容器组的充放电电流, 防止储能***出现过冲。
上述具体实现只是本发明的较佳实现而已,当然,本发明还可有 其他多种实施例,在不背离本发明精神及其本质的情况下,熟悉本领 域的技术人员当可根据本发明作为各种相应的改变和变形,但这些相 应的改变和变形都应属于本发明的权利要求的保护范围。
Claims (2)
1.一种城轨超级电容储能***充放电阀值模糊推理动态设定方法,其特征在于利用模糊推理,建立模糊规则,使牵引车辆能根据供电区段内与储能装置b距离L、超级电容荷电状态SOC的实时运行状态自行改变电压阀值,其中设牵引车辆到a、b储能***的距离和为D;模糊推理器由四部分组成:将精确输入模糊化、规则库、模糊推理、将输出的模糊量精确化;选取牵引车辆在供电区段内与储能装置b距离L、超级电容荷电状态SOC作为输入,a储能***充电电压阈值Uchar-a、b储能***充电阈值Uchar-b、a储能***放电阈值Udis-a、b储能***放电阈值Udis-b作为输出;
城轨超级电容储能***充放电阀值模糊推理动态设定步骤按设定时间间隔T执行如下:
Step1:实时采集各相关运行数据L、a储能***超级电容荷电状态SOC-a、b储能***超级电容荷电状态SOC-b并通过量化因子转换成模糊推理***输入
Step2:运行模糊推理***得到相应的设定值Uchar-a、Uchar-b、Udis-a、Udis-b
Step3:根据动态设定值进行协调控制。
2.根据权利1要求的一种城轨超级电容储能***充放电阀值模糊推理动态设定方法,其特征在于隶属函数选择、隶属函数表达式、模糊论域确定、确定模糊子集和建立模糊推理规则,其设定方式如下:
1).模糊推理的隶属函数选择,模糊论域和模糊子集确定:
SOC-a a储能***选定三个模糊子集:S、M、B
SOC-b b储能***选定三个模糊子集:S、M、B
L选定三个模糊子集:S、M、B
a储能***超级电容充电电压阈值Uchar-a,选定四个模糊子集:
SS、S、M、B
b储能***超级电容充电电压阈值Uchar-b,选定四个模糊子集:
SS、S、M、B
a储能***超级电容放电电压阈值Udis-a,选定四个模糊子集:
SS、S、M、B
b储能***超级电容放电电压阈值Udis-b,选定四个模糊子集:
SS、S、M、B
其中SS表示非常小,S表示小,M表示适中,B表示大;
SOC-a模糊论域[01]
SOC-b模糊论域[01]
L模糊论域[01]
Uchar-a、Uchar-b、Udis-a、Udis-b模糊论域[01]
其中为使各输入和输出实际论域和模糊集合论域一致,需要将实际论域转化为模糊集合论域,在此引入量化因子,Ksoc为超级电容荷电状态量化因子、Kl为运行区间距离量化因子、Kchar为超级电容充电阀值量化因子、Kdis为超级电容放电阀值量化因子;
L、SOC-a、SOC-b、Uchar-a、Uchar-b、Udis-a、Udis-b隶属函数采用三角函数公式或高斯型函数公式:
要求a≤b≤ca、b、c分别为隶属度左、中、右坐标,x为输入值;边缘隶属函数采用半梯形隶属函数,即a或c为最边缘坐标则设为-∞或+∞
其中,c隶属函数中心的位置,σ为隶属函数曲线的宽度
2).模糊推理运算方式:
与方式算法—取小
或方式算法—取大
蕴涵算法—取小
综合—各条规则结果的模糊子集取“并”
清晰化—面积中心算法
3).模糊推理规则:
If(SOC-a is S)and(L is S)and(SOC-b is S)then(Udis-b is S)(Uchar-b is SS)(Udis-a is M)(Uchar-a is S)
If(SOC-a is S)and(L is S)and(SOC-b is M)then(Udis-b is S)(Uchar-b is M)(Udis-a is M)(Uchar-a is S)
If(SOC-a is S)and(L is S)and(SOC-b is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is B)(Uchar-a is SS)
If(SOC-a is S)and(L is M)and(SOC-b is S)then(Udis-b is S)(Uchar-b is SS)(Udis-a is S)(Uchar-a is SS)
If(SOC-a is S)and(L is M)and(SOC-b is M)then(Udis-b is S)(Uchar-b is M)(Udis-a is M)(Uchar-a is SS)
If(SOC-a is S)and(L is M)and(SOC-b is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is B)(Uchar-a is SS)
If(SOC-a is S)and(L is B)and(SOC-b is S)then(Udis-b is M)(Uchar-b is S)(Udis-a is S)(Uchar-a is SS)
If(SOC-a is S)and(L is B)and(SOC-b is M)then(Udis-b is SS)(Uchar-b is M)(Udis-a is M)(Uchar-a is SS)
If(SOC-a is S)and(L is B)and(SOC-b is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is B)(Uchar-a is SS)
If(SOC-a is M)and(L is S)and(SOC-b is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is S)(Uchar-a is M)
If(SOC-a is M)and(L is S)and(SOC-b is M)then(Udis-b is SS)(Uchar-b is SS)(Udis-a is S)(Uchar-a is S)
If(SOC-a is M)and(L is S)and(SOC-b is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is M)(Uchar-a is B)
If(SOC-a is M)and(L is M)and(SOC-b is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is S)(Uchar-a is S)
If(SOC-a is M)and(L is M)and(SOC-b is M)then(Udis-b is S)(Uchar-b is S)(Udis-a is S)(Uchar-a is S)
If(SOC-a is M)and(L is M)and(SOC-b is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is S)(Uchar-a is SS)
If(SOC-a is M)and(L is B)and(SOC-b is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is S)(Uchar-a is S)
If(SOC-a is M)and(L is B)and(SOC-b is M)then(Udis-b is S)(Uchar-b is S)(Udis-a is SS)(Uchar-a is SS)
If(SOC-a is M)and(L is B)and(SOC-b is B)then(Udis-b is S)(Uchar-b is B)(Udis-a is SS)(Uchar-a is SS)
If(SOC-a is B)and(L is S)and(SOC-b is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOC-a is B)and(L is S)and(SOC-b is M)then(Udis-b is S)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOC-a is B)and(L is S)and(SOC-b is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is SS)(Uchar-a is M)
If(SOC-a is B)and(L is M)and(SOC-b is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOC-a is B)and(L is M)and(SOC-b is M)then(Udis-b is S)(Uchar-b is SS)(Udis-a is S)(Uchar-a is B)
If(SOC-a is B)and(L is M)and(SOC-b is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is SS)(Uchar-a is B)
If(SOC-a is B)and(L is B)and(SOC-b is S)then(Udis-b is B)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOC-a is B)and(L is B)and(SOC-b is M)then(Udis-b is S)(Uchar-b is SS)(Udis-a is SS)(Uchar-a is B)
If(SOC-a is B)and(L is B)and(SOC-b is B)then(Udis-b is SS)(Uchar-b is B)(Udis-a is SS)(Uchar-a is M)
牵引车辆在供电区间段内与储能装置距离L和超级电容荷电状态SOC作为模糊推理输入,通过模糊推理,得到电压阈值,两个储能***能量流动跟列车实时运行距离和各储能***SOC状态变化有关,并且还根据城轨超级电容储能***中采取的电压电流双闭环控制***,使电压电流在一定的限度内进行动态调整和协调配合,各储能***利用程度趋向于均衡、合理,避免超级电容过度充放电,保护储能设备;
城轨超级电容储能***采用电压电流双闭环控制***,电流采用PI控制器并且还有SOC限流模块,在超级电容储能***正常工作于充放电模式下,通过检测***的SOC状态控制电容器组的充放电电流,防止储能***出现过冲。
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