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1. Rectifier module system
Power rectifier module is a stand-alone module that rectifies alternating current into direct current. It is usually named by the size of the passing current (such as 2A module, 5A module, 10A module, 20A module, etc.). According to different design concepts, it can also be divided into: wind Cold module, independent air duct module, self-cooling module, self-energy air-cooling module and self-energy self-cooling module. It can be used in parallel with multiple units to achieve N1 redundancy.
The module output is a stable and adjustable DC voltage of 110V and 220V. The module itself has relatively complete various protection functions, such as: input overvoltage protection, output overvoltage protection, output current limiting protection, output short circuit protection, etc.
2. Monitoring system
The monitoring system is the control and management core of the entire DC system. Its main tasks are: long-term automatic monitoring of each functional unit and battery in the system, obtaining various operating parameters and status in the system, and processing them in a timely manner based on the measurement data and operating status. , and use this as a basis to control the system to achieve fully automatic management of the power system to ensure the continuity, reliability and accuracy of its work. Monitoring systems are currently divided into two types: one is the button type and the other is the touch screen type. The monitoring system provides a human-machine interface to realize system operating parameter display, system control operation and system parameter setting.
3. Insulation monitoring unit
The DC system insulation monitoring unit is a device that monitors the insulation condition of the DC system. It can monitor the line-to-ground leakage resistance in real time. This value can be set according to specific conditions. When the line-to-ground insulation drops to the set value, an alarm signal is issued. The DC system insulation monitoring unit currently includes busbar insulation monitoring and branch insulation monitoring.
4. Battery inspection unit
The battery inspection unit is a device that patrols and detects the online voltage of the battery. The voltage of each battery can be detected in real time. When the voltage of a battery is higher or lower than the set value, an alarm signal will be sent, and the monitoring system can display which battery is faulty. The battery inspection unit can generally detect 2V-12V batteries and perform patrol inspection of 1-108 batteries.
5. Switch detection unit
The switching value detection unit is a device for online detection of switching values and output of alarm dry nodes. For example, in the entire system, which circuit breaker fails and trips or which fuse blows, the switch detection unit will send out an alarm signal, and can display through the monitoring system which circuit breaker failed, tripped or which fuse blew. The device fuses. At present, the switching value detection unit can collect 1-108 switching values and multiple passive dry node alarm outputs.
6. Voltage reduction unit
The step-down unit is a step-down voltage stabilizing device. It is a step-down unit that inputs the combined bus voltage. The step-down unit then outputs it to the control bus to adjust the control bus voltage within the set range (110V or 220V). When the combined voltage changes, the step-down unit automatically adjusts to ensure stable output voltage. The buck unit is also named by the size of the output current. There are currently two types of buck units, one is a step-down silicon chain, and the other is a stepless step-down chopper.
Power rectifier module is a stand-alone module that rectifies alternating current into direct current. It is usually named by the size of the passing current (such as 2A module, 5A module, 10A module, 20A module, etc.). According to different design concepts, it can also be divided into: wind Cold module, independent air duct module, self-cooling module, self-energy air-cooling module and self-energy self-cooling module. It can be used in parallel with multiple units to achieve N1 redundancy.
The module output is a stable and adjustable DC voltage of 110V and 220V. The module itself has relatively complete various protection functions, such as: input overvoltage protection, output overvoltage protection, output current limiting protection, output short circuit protection, etc.
2. Monitoring system
The monitoring system is the control and management core of the entire DC system. Its main tasks are: long-term automatic monitoring of each functional unit and battery in the system, obtaining various operating parameters and status in the system, and processing them in a timely manner based on the measurement data and operating status. , and use this as a basis to control the system to achieve fully automatic management of the power system to ensure the continuity, reliability and accuracy of its work. Monitoring systems are currently divided into two types: one is the button type and the other is the touch screen type. The monitoring system provides a human-machine interface to realize system operating parameter display, system control operation and system parameter setting.
3. Insulation monitoring unit
The DC system insulation monitoring unit is a device that monitors the insulation condition of the DC system. It can monitor the line-to-ground leakage resistance in real time. This value can be set according to specific conditions. When the line-to-ground insulation drops to the set value, an alarm signal is issued. The DC system insulation monitoring unit currently includes busbar insulation monitoring and branch insulation monitoring.
4. Battery inspection unit
The battery inspection unit is a device that patrols and detects the online voltage of the battery. The voltage of each battery can be detected in real time. When the voltage of a battery is higher or lower than the set value, an alarm signal will be sent, and the monitoring system can display which battery is faulty. The battery inspection unit can generally detect 2V-12V batteries and perform patrol inspection of 1-108 batteries.
5. Switch detection unit
The switching value detection unit is a device for online detection of switching values and output of alarm dry nodes. For example, in the entire system, which circuit breaker fails and trips or which fuse blows, the switch detection unit will send out an alarm signal, and can display through the monitoring system which circuit breaker failed, tripped or which fuse blew. The device fuses. At present, the switching value detection unit can collect 1-108 switching values and multiple passive dry node alarm outputs.
6. Voltage reduction unit
The step-down unit is a step-down voltage stabilizing device. It is a step-down unit that inputs the combined bus voltage. The step-down unit then outputs it to the control bus to adjust the control bus voltage within the set range (110V or 220V). When the combined voltage changes, the step-down unit automatically adjusts to ensure stable output voltage. The buck unit is also named by the size of the output current. There are currently two types of buck units, one is a step-down silicon chain, and the other is a stepless step-down chopper.
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