graph LR
subgraph "三相双向变换桥臂"
A[电网L1相] --> B[滤波电感L1]
B --> C[桥臂上管节点]
C --> D["VBP18R20SFD \n 上管"]
D --> E[直流母线正极]
C --> F["VBP18R20SFD \n 下管"]
F --> G[桥臂中点]
G --> H[电网N相]
I[电网L2相] --> J[滤波电感L2]
J --> K[桥臂上管节点]
K --> L["VBP18R20SFD \n 上管"]
L --> E
K --> M["VBP18R20SFD \n 下管"]
M --> N[桥臂中点]
N --> H
O[电网L3相] --> P[滤波电感L3]
P --> Q[桥臂上管节点]
Q --> R["VBP18R20SFD \n 上管"]
R --> E
Q --> S["VBP18R20SFD \n 下管"]
S --> T[桥臂中点]
T --> H
end
subgraph "控制与驱动"
U[电网侧控制器] --> V[PWM信号发生器]
V --> W[隔离驱动电路]
W --> D
W --> F
X[电压采样] --> U
Y[电流采样] --> U
Z[电网同步] --> U
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
双向DC-DC变换器详细拓扑
graph TB
subgraph "多相交错并联双向DC-DC"
A[高压直流母线] --> B[输入电容]
B --> C[变压器初级]
C --> D[初级开关节点]
subgraph "初级侧开关阵列"
Q_PRI1["VBGQA3102N \n 通道A"]
Q_PRI2["VBGQA3102N \n 通道B"]
end
D --> Q_PRI1
D --> Q_PRI2
Q_PRI1 --> E[初级地]
Q_PRI2 --> E
C --> F[变压器1次级]
C --> G[变压器2次级]
F --> H[次级整流节点]
G --> I[次级整流节点]
subgraph "次级同步整流阵列"
Q_SR1["VBGQA3102N \n 通道A"]
Q_SR2["VBGQA3102N \n 通道B"]
end
H --> Q_SR1
I --> Q_SR2
Q_SR1 --> J[输出滤波电感1]
Q_SR2 --> K[输出滤波电感2]
J --> L[输出电容]
K --> L
L --> M[电池侧直流输出]
end
subgraph "数字控制与驱动"
N[数字电源控制器] --> O[PWM相位控制]
O --> P[初级侧驱动器]
O --> Q[同步整流驱动器]
P --> Q_PRI1
P --> Q_PRI2
Q --> Q_SR1
Q --> Q_SR2
R[电流采样] --> N
S[电压采样] --> N
end
style Q_PRI1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q_SR1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
电池保护与路径管理拓扑
graph LR
subgraph "主回路保护开关"
A[电池总线正极] --> B["VBE1307A \n 主保护开关"]
B --> C[电池组正极]
D[电池总线负极] --> E["VBE1307A \n 预充开关"]
E --> F[预充电容]
F --> C
D --> G[电池组负极]
end
subgraph "主动均衡网络"
subgraph "电池模块1"
BAT1_P[正极] --> SW1["VBE1307A \n 均衡开关"]
BAT1_N[负极] --> BAL_BUS[均衡总线]
end
subgraph "电池模块2"
BAT2_P[正极] --> SW2["VBE1307A \n 均衡开关"]
BAT2_N[负极] --> BAL_BUS
end
subgraph "电池模块3"
BAT3_P[正极] --> SW3["VBE1307A \n 均衡开关"]
BAT3_N[负极] --> BAL_BUS
end
SW1 --> BAL_BUS
SW2 --> BAL_BUS
SW3 --> BAL_BUS
BAL_BUS --> H[均衡控制器]
end
subgraph "BMS控制与驱动"
I[BMS主控制器] --> J[保护逻辑]
I --> K[均衡算法]
J --> L[开关驱动器]
K --> M[均衡驱动器]
L --> B
L --> E
M --> SW1
M --> SW2
M --> SW3
N[电压检测] --> I
O[电流检测] --> I
P[温度检测] --> I
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style SW1 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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