Industry 4.0 (Industry 4.0) is one of the projects determined by the German Government's 'High-Tech Strategy 2020'. This project aims to transform manufacturing to intelligence through the use of ICT and network technologies. Industry 4.0 has risen to the German level. National strategy. 'Industry 4.0' is divided into two major themes, one is 'smart factory', which focuses on intelligent production systems and processes, and the completion of networked distributed production equipment, which means that equipment can communicate with each other and Independent operation in the intelligent networked production process; the second is 'intelligent production', which first touches the entire enterprise's production logistics management, human-machine interaction, and the use of 3D technology in the industrial production process. Zhou Wanmu, a high-level analyst at IHS, pointed out that Germany Proposed Industry 4.0, the United States proposed a national strategic plan for advanced manufacturing, and China is also promoting the transformation and upgrading of traditional manufacturing. Under such a big setting, traditional motor and motor control occupations are also changing, and motor control chips are also proposed. Analyst Zhou Wanmu believes that the main trends include the following three aspects: the trend of distributed motor control systems and integrated motor control products. The number of motor shafts in independent machinery is becoming more and more, and multi-axis control is increasing. More used in packaging machinery, electronic assembly machinery, food and beverage machinery, manipulators and printing presses In order to meet the processing requirements of small batches, customization and flexibility, customers need to sensitively adjust the number of axes controlled by the motor, and require the motor control system to be more open and capable of repeated programming. In addition, the production lines of modern factories are becoming more and more More complex, such as automobile manufacturing, packaging, food and beverage, storage and logistics production lines are using hundreds of inverters, servos and motors to control material activities, these production lines have a greater demand for distributed motor control systems. There will be a central electrical control cabinet for the motor control system, and the distributed motor control system can provide a compact and modular solution, which helps to simplify wiring, shorten the commissioning time and reduce the demand for rated cabinet space. Fewer cables can also reduce disturbances and improve the reliability of the production line. No electrical control cabinet is needed to enable the motor to quickly connect to industrial Ethernet. The distributed distribution of the motor control system also means the integration of motor control products, such as motors Integration with motor drive, integration of motor manipulator and PLC, electrical Manipulator and drive integration. The high integration of the motor, motor drive and its control system makes the planning, manufacturing and operation of the three tightly integrated. Compared with the traditional electric drive system, they are smaller and lighter. , Power density is higher. IHS company senior analyst Zhou Wanmu said that the concept of integration does not stop at the motor, motor drive and motor controller, but also includes the integration of the entire motor system. Siemens is promoting the IDS (IntegratedDriveSystem) integrated drive system Contains two levels. The first level is horizontal integration, which includes the integration of motor manipulators, motor drives, motors and reducers. The second level is vertical integration, which is to classify the motor system into the entire industrial control system. TIA (TotallyIntegratedAutomationPortal). The trend of integrated motor control makes customers increasingly demanding motor control MCU, FPGA and DSP functions. At the same time, semiconductor chip manufacturers can also provide integrated solutions to integrate more in a single chip. Functions, I / O, drivers, control algorithms and industrial Ethernet modules, etc.Intelligent, networked and long-distance control trends The intelligent, networked and long-distance control of the entire motor control system will be the general trend. The motor control system is not only a device for transforming and transmitting energy, but also a channel for transmitting and communicating information. In the future, the industrial motor system will not only be an executive agency, but also an organic component and power monitoring point of the entire plant system. Zhou Wanmu, a high-level analyst at IHS, for example, said that some motors produced by Siemens and ABB can actively collect and record changes in voltage, current, temperature rise, oscillation and other conditions in the motor, and send the data to the control in real time via Ethernet. The center is used to detect and diagnose the operating status of the motor, so that the operator can access parameters, conditions and diagnostic information and set parameters no matter where he is. 8-bit MCUs are cheap, stable in function, and extremely versatile in scale, such as signal detection, LED lighting control, power conversion control, and BLDC motor control. These applications are now sufficient for 8-bit MCUs. The requirements for active fault alarm, long-distance monitoring, and long-distance diagnosis and debugging of the motor system will use more and more functions and more powerful MCUs, DSPs and FPGAs. 8-bit MCUs have encountered bottlenecks in modern industrial environments such as inverter control, servo motor control, power and power monitoring, and the increasing use of Ethernet. In addition, the price of 32-bit MCUs is falling further, and the price difference between 8-bit MCUs and 32-bit MCUs is narrowing, so more and more 32-bit MCUs will be used in the future motor control system. In addition, the needs of long-distance motor temperature detection, abnormal vibration detection, and current and voltage monitoring will create more shopping opportunities for imitation chips. Energy saving trend of the motor system The energy saving of the motor system is also the general trend. In order to improve the energy efficiency level, the Ministry of Industry and Information Technology has released a motor energy efficiency improvement plan to complete the upgrade of motor products. 50% of low-voltage three-phase cage asynchronous motor products and 40% of high-voltage motor products have reached the high-efficiency motor energy efficiency standards. 160 million kilowatts of inefficient motors were screened, 100 million kilowatts of energy-saving technical reforms were implemented in the motor system, and 20 million kilowatts of high-efficiency motors were remanufactured. However, it is not obvious that the energy saving effect of the entire motor system is only improved by replacing the general motor with a high-efficiency motor. The energy conservation of the entire motor system is the real energy saving. Therefore, inverters, servos, inverters and special motor drives are widely used in fans, pumps, compressors, elevators, electric welding machines, electric vehicle motors, air-conditioning compressors, washing machine motors and refrigerator compressors. Inverter is the main force of energy saving in motor system. Energy saving is mainly reflected in the use of fans and pumps. After selecting an inverter, the speed of the pump or fan can be reduced by reducing the power supply frequency. With the decrease of the speed, the power will decrease rapidly. At the same time, the inverter generally chooses AC-DC-AC inverter power supply to communicate with asynchronous motors to absorb the lagging reactive power. After the inverter supplies power, the power factor for the power grid has also been improved to electric Double motor some extent, which has saved part of the power grid transmission process. Medium loss of electrical energy. The IPM modules, IGBTs and MOSFETs in inverters, servo drives, inverters and dedicated controllers play a key role in saving energy and reducing consumption. Customers also have more and more requirements for these power devices. For example, they require lower product costs, more compact packaging standards, and better heat dissipation functions. They also require the diversification of power devices, such as low-power devices and compact planning. High-power equipment, low-voltage high-power equipment, high-current high-voltage equipment and so on.
