SIEMENS
ROBICON Perfect Harmony
液体冷却的驱动器
2
2/5
西门子D 16.2 - 2012年
Design (continued)
高级电池旁路
Robicon完美的和谐旨在承受
将压倒传统驱动器的故障
because redundancy options are added into the system.
获得专利的基于细胞的Con Fi,最大化正常运行时间
并简化了修改。
Through a redundant bypass control that is completely
separated from each power cell, the ROBICON Perfect
和谐确保自动旁路失败的电力电池
在不到250毫秒。
由于罗宾邦的每个阶段的细胞完美和谐
drive are in series, bypassing a cell has no effect on the
current capability of the drive, but the voltage capability
will be reduced. Usually the required motor voltage is
大致与速度成比例,使最大值
speed at which the drive can fulfill the application
要求也将减少。
因此,最大化电动机电压是重要的
在绕过一个或多个小区后可用。这
以下GURE示出了可从A可获得的电压
ROBICON Perfect Harmony drive, where the cells, represented
通过圆圈,显示为简单的电压源。图2.4
示出了15个单元驱动器,其中绕过任何细胞。和
100% of the cells in use, 100% of the original voltage is
可用的。三相组的电压命令
of cells will have phase A displaced from phase B by 120°,
从C相120°。
图2.4Simplified diagram of a 15 cell drive
When two cells are bypassed in phase A, the output voltage
will tend to become unbalanced, as illustrated in Figure 2.5.
图2.5驱动器输出,其中2个单元旁边旁路
One possible remedy is to bypass an equal number of cells
在所有三个阶段,即使有些可能没有错误。
图2.6说明了这种方法。显然,这种方法
防止不平衡但牺牲可能的电压能力。
In this figure, 87% of the cells are functional, but only 60%
are in use, and only 60% of full voltage is available.
Figure 2.6 Drive output rebalanced by bypassing functional cells
A better approach is illustrated in figure 2.7. This method takes
优势,细胞的星形点是流量的事实,
并且没有连接到电机的中性。所以
the star-point can be shifted away from the motor neutral, and
可以调整电池电压的相位角,使得
a balanced set of motor voltages is obtained even though the
cell group voltages are not balanced.
C4
B4
C5
B3
C2
B2
C1
A1
A2
A3
A4
A5
B1
C5
B5
B
A
N
C
120°
15个模块驱动器
没有绕过的模块。
100%的模块
are in use.
100 % of full voltage
is available.
V
AC
V
BA
V
CB
g_d015_en_00013
C4
B4
C3
B3
C2
B2
C1
A1
A2
A3
B1
C5
B5
B
A
N
C
120°
15模块驱动器后
旁路2个模块
in phase A.
87 % of the modules
are in use, but the
输出电压是
可用的不平衡。
V
AC
V
BA
V
CB
g_d015_en_00014
A2
A1
A3
B1
C1
B2
C2
B3
C3
A
B
N
C
120°
15模块驱动器后
旁路2个模块
in all phases.
Balance is restored.
87 % of the modules
没关系,但只有
60.% are in use.
60.% of full voltage
is available.
V
AC
V
BA
V
CB
g_d015_en_00007
Introduction