第
17
卷第
4
期
2013
年
4
月
电机与控制学报
ELECTRIC
MACHINES
AND
CONTROL
A
且寸
句、}
ol
N
航
吨,由
寸,
'EAVA
J
他句
V
应用非稳态开路电压方法估计
EV
用电池剩余电量研究
武国良
周志宇
2
于达仁
3
(1.黑龙江省电力科学研究院,黑龙江哈尔滨
150030;2.
华北电力大学电气与电子工程学院,北京
102206;
3.
哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨
150001)
摘
要:针对稳态开路电压方法预测电动车用电池剩余容量需很长时间的缺点,提出一种新型的基
于电池等效电路模型的非稳态开路电压方法,实现快速估计电池的剩余容量,根据电池当前的非稳
态开路电压及其电池停歇时间和辨识出的电池参数,估计电池的剩余容量。比较电池放电停歇阶
段真实的剩余电量数据和非稳态开路电压方法估计出的剩余电量数据,证明该方法精确度较高,有
较强的实用性。
关键词:稳态开路电压;剩余电量;等效电路模型;非稳态开路电压
中图分类号
:TU313
文献标志码
:A
文章编号:
1007-449X(2013)04-01
1O
-06
Unsteady open circuit voltage method for state
of
charge
estimation
of
electric vehicle batteries
WU
Guo-liang
1
,
ZHOU
Zhi-yu
2
,
YU
Da-ren
3
(
1.
Heilongiiang
Electric
Power
Research Institute ,
Harbin
150030
, China;
2.
School
of
Electrical &
Electronic
Engineering
,
North
China
Power
University
,
Beijing
102206
, China;
3.
School
of
Energy
Science
and
Engineering
, Harbin Institute
of
Technology
,
Harbin
150001
, China)
Abstract:
It
takes a long time when steady open circuit voltage is
used
to estimate state of charge.
In
or-
der
to overcome the shortcoming , a method using steady open circuit voltage
based
on equivalent circuit
model is proposed
, which
can
forecast state of charge quickly. State of charge
can
be forecasted by un-
steady open circuit voltage
, model parameters
and
idle time. A comparison between experimental
data
and
calculated
data
in discharge idle
!=l
tate was undertaken.
The
calculation results
are
in
good agreement
with the experimental results. The method is with great precision
and
ve
巧
T
pratical.
Key
words:
steady open circuit voltage; state of
charge;
equivalent circuit models; unsteady open circuit
voltage
收稿日期:
2013
-02 -06
基金项目:国家电网公司科技项目(黑电科信
[2013J384
号)
作者简介:武国良(1
980
一),男,博士,研究方向为电动汽车及充换电技术;
用志宇(1
991
一),男,本科,研究方向为电力系统;
于达仁(
1966
一)
,男,长江学者特聘教授,博士生导师,研究方向为等离子体推进技术、热力系统动态学及控制、智能信息处理及过
程控制
O
通讯作者:周志宇