It can be predicted that in the near future, industrial intelligence needs two-way interaction. The development of network communication and intelligent sensing technology will promote the intelligent development of industrial control. Intelligent and networked will become the motor control industry, and even The core development trend of the entire industrial automation market.
This means that motor control will be as important as ever, so how to do a good job of motor control to meet the needs of the new industrial era has become a major consideration for major semiconductor manufacturers. As a leader in the industrial industry, ADI has traditional advantages in high efficiency and low power motor control. In view of this, the Electronic Enthusiast Smart Industry Special Issue invites Mr. Yu Changtao, Marketing Manager of the Asia Pacific Electric and Power Control Industry of Analog Devices, to discuss issues related to industrial motor control.
Mr. Yu Changtao, Marketing Manager, Motor and Power Control Industry, Asia Pacific, Analog Devices
Yu Changtao said that the so-called Industry 4.0 connects people, machines and information through automatic control, network and computing. From the perspective of the manufacturing process, it integrates all of this into a digital enterprise platform and passes data. Collect, analyze, optimize, and optimize ways to achieve more efficient production methods.
Three perspectives on the development of smart industry
In general, the smart industry can be viewed from a technical perspective, a global market perspective, and a domestic market perspective. Yu Changtao pointed out that the new technologies brought about by the Internet, big data, cloud computing, and Internet of Things have brought revolutionary changes to industrial production. The virtual and actual boundaries seem to be eliminated. All production processes can be simulated in advance in computers. The analysis and optimization of production can be done in the virtual world, and eventually the labor will be largely replaced by machine intelligence.
From the global situation, Industry 4.0 is a topic that has been widely discussed, which should represent the development trend of the smart industry in the future.
From a domestic perspective, the current main plan is planning, as shown.
It is not difficult to find out from the three trends that the smart industry will be vigorously developed in the future, and the motor control field will be the highlight, and the high standard and high requirements will naturally come out.
Launched motor combination products to help the development of intelligent industry
In the new generation of motor manufacturing, high efficiency is a clear trend of technology development. More and more applications and fields require motor control not only in general inverters and speed control that meet energy saving requirements, but also in precise position. Control and current control have become new demands. Yu Changtao said that the ADI mixed-signal control processor ADSP-CM40x has a very good performance in response to increasingly high-efficiency requirements. A not only integrates the industry's only embedded dual-channel 16-bit precision with more than 13 bits. The synchronous sampling analog-to-digital converter also features a 240-MHz floating-point ARM® CortexTM-M4 processor core.
In servo control, high-precision current and voltage detection improves speed and torque control performance, requiring multi-channel ADCs with 12-bit and above performance. According to Chang Tao, ADI has industry-leading ADC technology, including isolated ADC products, which can meet the requirements of high-precision control, and can provide high-precision RDC to meet the position detection of rotary transformers.
Safety and protection cannot be ignored. Yu Changtao said that signal sampling and power device driving should use isolation technology. ADI's iCoupler digital isolator products can meet high-voltage safety isolation requirements. In industrial applications, products can increase life cycle and improve reliability.
For motor control solutions, ADI also offers a comprehensive portfolio of products including analog-to-digital/digital-to-analog converters, amplifiers, and embedded processors. These high-performance devices and increased system integration help achieve The updated topology design can bring value to customers' differentiated design of the system.
In addition, Yu Changtao added that a new generation of IGBT gate drive with integrated protection functions includes Miller clamp protection, desaturation protection, input and output undervoltage protection, etc., with independent output shutdown and output conduction. The channel and the output voltage can reach 30V, which will be well used in the field of industrial control.
Overcoming four major challenges to lay out the future industrial market
Motor control is a relatively mature industrial application that does not have very rapid changes from a technical and user perspective. Yu Changtao said that in addition to the above description, we can see that there are some new changes in China.
First, the ARM Cortex-M4F, as a general-purpose processor platform, is increasingly accepted by domestic customers and becomes a platform for replacing the general-purpose servo controller of DSP. The application of MEMS in motor control is an important issue. topic of.
Second, the algorithm has always been the core of motor control, and each manufacturer has its own expertise. Yu Changtao pointed out that ADI's capabilities are more focused on hardware solutions, but ADSP-CM408 undoubtedly provides a powerful platform for high-efficiency, high-performance algorithms.
Third, heat dissipation is a technical difficulty, and more should be considered from the mechanical structure. However, from the hardware design point of view, reducing the loss of the power module is undoubtedly a solution. In addition to its own product upgrades, its corresponding Gate driver also needs to have performance improvements, and ADI's ADuM4135 is a good choice.
Fourth, noise is also a system problem, not a chip product can solve. However, from the ADI point of view, the AD740x series of isolated ∑-? ADCs for small and medium power current sampling is undoubtedly a good solution.
Faced with these new changes, Yu Changtao emphasized that ADI has a complete system solution, including processors, derivative products related to safety isolation, position detection, and analog signal processing, and even extends to software algorithms. At the same time, in the industrial key areas, ADI has a very good opportunity, combined with industrial motor control, high-end CNC machine tools and robots undoubtedly bring huge opportunities for the development of the industry, in these two categories of system products, ADI processing In addition to the traditional motor control system solutions, the industrial IoT is also the focus of the future.
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