Product Description
I. Product Functions
The DEIF PSM-1 is a professional power supply and signal management module that acts like a "central nervous system" in the entire power system. It is responsible for coordinating and managing power supply as well as processing various types of signals. It mainly serves fields with extremely high requirements for power stability and signal accuracy, such as power generation, power distribution, and industrial automation.
(I) Power Supply Management Functions
Wide-Range Voltage Input and Stable Output
The DEIF PSM-1 is compatible with a variety of common input voltages, including different levels such as AC 220V-480V and DC 24V-220V. This wide voltage adaptability allows it to be flexibly applied in various complex power environments. In terms of output, it can provide a high-precision and stable DC 24V power output with a voltage accuracy of up to ±1%, offering stable and reliable power support for connected equipment and ensuring normal operation of the equipment under different working conditions. For example, in some automated production lines with extremely high requirements for power stability, the stable output of the PSM-1 ensures precise control of production equipment and avoids production errors caused by voltage fluctuations.
Efficient Power Conversion and Energy-Saving Features
This module adopts advanced power conversion technology, with a power conversion efficiency of over 90%, which greatly reduces energy loss during the conversion process. Through optimized circuit design and intelligent power management algorithms, the PSM-1 can dynamically adjust the output power according to the actual load demand. It reduces its own power consumption under light load conditions to achieve energy-saving operation. Taking a small power equipment room with multiple devices as an example, after using the DEIF PSM-1, the monthly power consumption is reduced by approximately 10% compared with the previous situation, effectively lowering the operating costs.
Comprehensive Power Supply Protection Mechanism
To deal with various abnormal situations that may occur in the power system, the PSM-1 is equipped with comprehensive power supply protection functions. It has overvoltage protection capability: when the input voltage exceeds the set safety threshold (such as AC 550V or DC 250V), it can quickly cut off the power output to prevent damage to the downstream equipment caused by excessively high voltage. At the same time, it also has overcurrent protection function: when the output current exceeds the rated value (such as 5A), it automatically activates current-limiting measures to avoid equipment failures or safety hazards like fires caused by excessive current. In addition, the PSM-1 is also integrated with short-circuit protection function. Once a short circuit is detected at the output terminal, it can cut off the power supply in an extremely short time (less than 1ms) to protect the safety of the equipment and the entire power system. In a power failure incident in a factory, a sudden large current was caused by an external line short circuit. The short-circuit protection function of the PSM-1 was activated quickly, successfully preventing a large number of equipment in the workshop from being damaged by the impact of short-circuit current and reducing huge economic losses for the enterprise.
(II) Signal Monitoring and Processing Functions
Multi-Type Signal Acquisition and High-Precision Measurement
The DEIF PSM-1 has strong signal acquisition capability and can monitor multiple types of signals simultaneously. It supports 4 channels of analog input (AI), which can collect analog signals such as voltage, current, and temperature. The input signal range is wide: for example, the voltage can support different ranges like 0-10V and 0-500V, and the current can support ranges such as 0-5A and 0-100A. It has a resolution of up to 16 bits and a measurement accuracy of ±0.2% FS (full-scale accuracy). Through these high-precision analog signal acquisitions, real-time data of various parameters in the power system can be accurately obtained, providing a reliable basis for subsequent analysis and control. For example, in the monitoring of the operating status of power transformers, the PSM-1 can accurately collect analog signals such as transformer winding temperature and oil level, and promptly detect abnormal situations such as possible overheating of the transformer. At the same time, it also has 8 channels of digital input (DI) for monitoring digital signals such as switch status and equipment operation/stop signals. It can quickly respond to changes in external signals with a response time of less than 1ms, ensuring real-time mastery of the equipment status.
Signal Filtering and Anti-Interference Processing
In complex power environments, signals are easily affected by various interferences, leading to inaccurate data or equipment malfunctions. The DEIF PSM-1 adopts advanced signal filtering technology and anti-interference measures, and is built with a variety of digital filters, such as low-pass filters, high-pass filters, and band-pass filters. It can select an appropriate filtering method according to different application scenarios and signal characteristics, effectively removing noise and interference components in the signals and improving signal quality. At the same time, it also has a good electromagnetic compatibility (EMC) design. Through a metal shielded housing, reasonable grounding design, and optimized layout of internal circuits, it can effectively resist external electromagnetic interference and ensure the accuracy and stability of signal monitoring and processing. In the monitoring of power equipment close to strong electromagnetic interference sources such as large motors and frequency converters, the PSM-1 can stably collect and process signals without being affected by interference, providing strong support for the reliable operation of the equipment.
Signal Analysis and Fault Diagnosis Functions
The PSM-1 not only simply collects and transmits signals, but also has strong signal analysis and fault diagnosis capabilities. Through the built-in microprocessor and professional algorithms, it can conduct real-time analysis on the collected signals, calculate the effective value, peak value, average value, etc. of various power parameters, and compare them with the preset thresholds. Once an abnormal signal is detected, such as a voltage deviation exceeding ±5% or a current harmonic content exceeding 10%, the PSM-1 can quickly determine the fault type and location, and upload the fault information to the monitoring system in a timely manner through communication interfaces such as RS485 or CAN bus. At the same time, it triggers local alarm output to remind operation and maintenance personnel to handle the problem promptly. For example, in a large wind farm, the PSM-1 is installed in the control cabinet of each wind turbine to monitor various operating parameters of the wind turbine in real time. When the generator current of a certain wind turbine fluctuates abnormally, the PSM-1 quickly analyzes that it is due to uneven load caused by the deviation of the wind turbine blade angle, and sends the fault information to the monitoring center in a timely manner. The operation and maintenance personnel adjust the blade angle promptly based on this information, avoiding damage to the wind turbine due to overload and ensuring the normal power generation of the wind farm.
II. Technical Parameters
III. Application Scenarios
(I) Power Generation Field
Generator Set Control System
In various types of generator sets, such as diesel generator sets, gas generator sets, and wind turbine generator sets, the DEIF PSM-1 plays a crucial role. It is responsible for collecting various operating parameters of the generator set, such as the engine speed, oil temperature, oil pressure, and the generator's output voltage, current, frequency, etc., and conducts real-time monitoring and analysis of these parameters. By communicating with the controller of the generator set, the PSM-1 can adjust the operating status of the generator set according to the monitored parameters to achieve precise control of the generator set. For example, in a diesel generator set, when the load suddenly increases and causes the generator's output voltage to drop, the PSM-1 will feed back the voltage signal to the controller in a timely manner. The controller adjusts the throttle opening of the diesel engine according to the preset control strategy, increases fuel supply, and raises the engine speed, thereby restoring the generator's output voltage to the normal level. At the same time, the PSM-1 can also perform real-time diagnosis of faults in the generator set, such as engine overheating, low oil pressure, generator short circuit, etc. Once a fault is detected, it immediately triggers an alarm and takes corresponding protective measures, such as shutdown protection, to ensure the safe operation of the generator set and reduce equipment damage and maintenance costs.
Distributed Energy System Integration
With the rapid development of distributed energy sources, such as solar photovoltaic power generation and small hydropower, connecting these distributed energy sources to the power grid and achieving efficient management has become an important issue. The DEIF PSM-1 can be used as a key interface device between the distributed energy system and the power grid. It is responsible for monitoring parameters such as the output power, voltage, and frequency of the distributed energy sources, and matching and coordinating them with the operating parameters of the power grid. Through real-time monitoring and control, the PSM-1 can realize the stable connection and efficient utilization of distributed energy sources, improve energy utilization efficiency, and reduce the impact on the power grid. For example, in a distributed solar photovoltaic power generation system, the PSM-1 monitors the output voltage and current of the photovoltaic panels in real time, and adjusts the working status of the inverter according to the light intensity and load demand. This ensures that the photovoltaic power generation system always operates at the optimal working point and stably transmits the excess electric energy to the power grid. At the same time, the PSM-1 can also monitor the voltage and frequency fluctuations of the power grid. When an abnormality occurs in the power grid, it adjusts the output of the photovoltaic power generation system in a timely manner to avoid adverse effects on the power grid and ensure the safe and stable operation of the distributed energy system and the power grid.
(II) Power Distribution Field
Intelligent Power Distribution Cabinet Monitoring and Management
In modern intelligent power distribution systems, the power distribution cabinet is the core equipment for power distribution and control, and the monitoring and management of its operating status is crucial. The DEIF PSM-1 can be installed in the intelligent power distribution cabinet to conduct comprehensive monitoring of various power parameters in the cabinet, including incoming line voltage, current, power factor, and the current and electricity consumption of each outgoing line circuit. Through real-time monitoring and analysis of these parameters, the PSM-1 can promptly detect potential fault hazards in the power distribution cabinet, such as line overheating, overload, short circuit, etc., and upload the fault information to the power distribution automation system through the communication interface to realize remote monitoring and management of the power distribution cabinet. Operation and maintenance personnel can view the operating status of the power distribution cabinet in real time through the software interface of the monitoring center, and take timely measures for maintenance and overhaul, improving the reliability and safety of the power distribution system. For example, in the power distribution system of a commercial complex, the PSM-1 is installed in the power distribution cabinets on each floor to monitor power parameters in real time. When the current of an outgoing line circuit in a certain floor's power distribution cabinet suddenly increases beyond the rated value, the PSM-1 immediately sends an alarm signal and uploads the fault information to the monitoring center. The operation and maintenance personnel rush to the scene quickly based on the alarm information, identify that a short-circuit fault has occurred in a device connected to this circuit, and handle it promptly. This avoids a large-scale power outage caused by the expansion of the fault and ensures the normal operation of the commercial complex.
Power Quality Monitoring and Governance
Power quality issues, such as voltage fluctuations, harmonic pollution, and three-phase imbalance, will have a serious impact on the operation of equipment in the power system, reduce equipment service life, and even cause equipment failures. The DEIF PSM-1 can be used as a power quality monitoring device to conduct high-precision collection and analysis of signals such as voltage and current in the power system, and monitor power quality parameters in real time. Through the analysis of these parameters, the PSM-1 can accurately determine the power quality problems existing in the power system and provide corresponding governance suggestions. For example, when high-order harmonics are detected in the power grid, the PSM-1 can send control signals to the harmonic governance device through the communication interface, activate the harmonic filter, govern the harmonics, and improve the power quality of the power grid. At the same time, the PSM-1 can also record and statistically analyze the power quality data for a long time, providing data support for the power sector to formulate reasonable power quality improvement measures. In some electronic manufacturing enterprises with extremely high requirements for power quality, after using the DEIF PSM-1 to monitor and govern the power quality, the equipment failure rate is significantly reduced, the production efficiency is significantly improved, and the normal production of the enterprise is effectively guaranteed.
(III) Industrial Automation Field
Automated Production Line Control and Monitoring
In industrial automated production lines, the coordinated operation of various equipment requires precise control and real-time monitoring. The DEIF PSM-1 can be used as the core control and monitoring equipment of the automated production line. It collects the operating status signals of various equipment on the production line, such as motor speed, equipment start-stop status, and sensor feedback signals, and controls the equipment according to the preset control logic. By communicating with equipment such as programmable logic controllers (PLC) and industrial computers, the PSM-1 can realize comprehensive monitoring and management of the automated production line, ensuring efficient and stable operation of the production line. For example, in the automated assembly production line of an automobile manufacturing enterprise, the PSM-1 collects the operating status signals of the equipment at each assembly station in real time. When a fault is detected in the equipment at a certain station, it immediately stops the production line and sends the fault information to the maintenance personnel. At the same time, the PSM-1 can also adjust the operating parameters of the equipment according to the product model and production process requirements on the production line, realizing flexible production of the production line and improving production efficiency and product quality.
Factory Energy Management System
In factory energy management, accurately grasping energy consumption and conducting reasonable optimization are crucial for reducing production costs and improving energy utilization efficiency. The DEIF PSM-1 can be used as a data collection and analysis device for the factory energy management system. It collects power parameters of various energy-consuming equipment in the factory, such as motors, lighting, and air conditioners, and monitors energy consumption in real time. Through the analysis of these data, the PSM-1 can generate energy consumption reports, analyze energy consumption trends, identify links with energy waste, and provide energy-saving optimization suggestions. For example, through the monitoring of the power parameters of the factory's lighting system, the PSM-1 finds that the lighting in some areas is still on when no lighting is needed during the day. By linking with the lighting control system, it realizes automatic control of the lighting switch according to the ambient light, thereby greatly reducing lighting energy consumption. At the same time, the PSM-1 can also be integrated with the factory's energy management software, providing data support for the enterprise's energy management decision-making and helping the enterprise achieve energy conservation and emission reduction goals.
IV. Cooperative Work with Other Equipment
(I) Cooperation with DEIF Controllers
DEIF has a rich product line in the field of power control. The PSM-1 can achieve seamless cooperative work with other DEIF controllers, such as the AGC PM genset controller. The PSM-1 is responsible for collecting various real-time data in the power system, including power parameters and signal parameters, and then transmitting these data to the AGC PM genset controller quickly and accurately. The AGC PM genset controller conducts precise control of equipment such as generator sets according to the received data, combined with preset control strategies and algorithms. For example, in the parallel operation control of generator sets, the PSM-1 monitors parameters such as the output voltage, frequency, and phase of each generator set in real time, and sends these data to the AGC PM genset controller. The AGC PM genset controller adjusts the excitation current and speed of each generator set according to these parameters, enabling the generator sets to operate in synchronous parallel and ensuring the stability and reliability of power output. At the same time, when a fault occurs in the power system, the PSM-1 sends the fault signal to the AGC PM genset controller in a timely manner. The controller quickly takes corresponding protective measures, such as shutdown and alarm, to ensure the safety of equipment and personnel. This close cooperative work mode gives full play to the advantages of DEIF products in the field of power control and improves the overall performance and reliability of the power system.
(II) Cooperation with Sensors and Actuators
In practical applications, the DEIF PSM-1 needs to work in cooperation with various sensors and actuators to achieve comprehensive monitoring and control of the power system. The PSM-1 is connected to various sensors, such as voltage sensors, current sensors, and temperature sensors, through analog input interfaces, and collects various physical quantity signals in the power system in real time. These sensors convert the collected physical quantities into electrical signals and transmit them to the PSM-1. The PSM-1 processes and analyzes these signals to obtain accurate power parameters. For example, by working in cooperation with current sensors, the PSM-1 can monitor the current in the power line in real time and determine whether there is an overload in the line. At the same time, the PSM-1 is connected to actuators, such as relays, contactors, and solenoid valves, through digital output interfaces, and sends control commands to the actuators according to the monitoring and analysis results to control the power equipment. For example, when the PSM-1 detects a fault in a certain equipment in the power system, it triggers a relay through the digital output interface to cut off the power supply of the equipment and prevent the fault from expanding. Through the cooperative work with sensors and actuators, the DEIF PSM-1 builds a complete power monitoring and control system, ensuring the safe and stable operation of the power system.
(III) Communication with Monitoring Systems
To realize remote monitoring and management of the power system, the DEIF PSM-1 is equipped with a variety of communication interfaces, such as RS485, CAN Bus, and Ethernet, and can communicate with various monitoring systems. Through these communication interfaces, the PSM-1 transmits the collected real-time data and fault information of the power system to monitoring systems, such as power distribution automation systems, energy
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