Grab the industrial motor control business opportunity DSP / FPGA elite

Although industrial motors account for only a small part of the global motor usage, they have become the main control targets for motor energy efficiency in the world due to their amazing power consumption (Table 1). It is understood that an industrial induction motor with an efficiency of IE3 of 11 kilowatts (kW), when the motor runs for 4,000 hours per year and runs continuously for 20 years, its initial purchase cost only accounts for 2.3% of the motor life cycle. The subsequent energy use costs accounted for 96.7% of the motor life cycle, and the power consumption is extremely amazing (Figure 1).

Figure 1 Life cycle cost distribution of induction motor products Source: International Energy Agency

The world's first energy-consuming industrial motor has enormous energy-saving potential

A motor with a power of less than 0.75 kW or less than 1 hp (about 746 watts) is called a fractional motor (FHP) if it is differentiated by power. Fractional motors are commonly used in low-voltage power system applications in automotive, heating, ventilation, cooling, office machinery, etc., and according to statistics from Global Industry Analysts in July 2013, fractional motors are used in cities where motors are used globally. The ratio is about 87.1%.

However, the most impressive growth potential is the Integral Motor (IHP). Huang Yaqi, an industrial analyst of the Energy Research Group of IKE Energy Technology Research Institute of ITRI, said that the integer motor power is about 0.75kW and more than 1 horsepower. It is most commonly used in the industrial field, accounting for about 90% of the integer motor market, so it can be called It is an industrial motor; although the integer motor has a market share of approximately 12.9% in the global use of the motor, it accounts for 87.7% of the global motor energy consumption, representing the amazing power consumption of industrial motors, which has great potential for energy conservation. opportunity.

According to the market report released by the global industry analysts in July 2013, the industrial motor market will reach US$26.35 billion due to the recovery of the global economic climate in 2014. Compared with 2013, the annual growth rate is 6.1. %; and it is expected that the output value will reach $33.36 billion by 2018, and it will grow steadily at an annual growth rate of 5-6 percent (Figure 2).

Figure 2 Analysis of industrial motor market growth in 2014 and 2018 Source: ITRI IEK

Transparency Market Research, another market regulator, said that industrial applications are gradually shifting traditional electric motors into energy-efficient motors, so industrial integer motors will contribute to the overall motor market. In addition, the United States and European countries have resorted to many incentives to encourage the industrial sector to replace low-efficiency motors with high-efficiency solutions, which will drive demand for high-efficiency integer motors in industrial applications.

For the industrial motor market with such rich energy-saving potential, semiconductor component manufacturers will naturally not miss this business opportunity; in response to the industrial automation trend, the demand for industrial servo control system (Servo Control System) is also rising, Yadno (ADI) ) Specially locked in the industrial servo control system market, the introduction of the hybrid signal processor with the core of the ARM (Cortex-M4), and the commercial servo control motor business opportunities.

Targeting the industrial servo motor business opportunity ADI Cortex-M4 processor

Figure 3 Yu Changtao, manager of the power control market of Yadano Motor, said that the industrial servo control system is characterized by the need to provide closed-loop control of the entire servo system. Therefore, the accuracy of the motor control is high, such as the control core must be fully supported. Embedded analog front end and mixed signal processor.

Yu Changtao (Fig. 3), manager of the power control market of Yadano Motor, said that under the wave of industrial automation, the demand for servo-control systems, the core of mechanical, electronic, communication, control and information technology integration devices, is on the market. Eager; compared with the cost-sensitive small appliances, consumer applications market, servo control systems that focus on system control efficiency, have long been the first to introduce high-efficiency DC brushless motors (BLDC), stepper motors, and observe The future trend of servo control can be found that permanent magnet synchronous motor (PMSM) will become the new darling of industrial servo control.

Yu Changtao further pointed out that the servo motor, which is mainly used in the industry, is characterized by the need to provide closed-loop control of the entire servo system, such as torque control, speed control and position control, so the accuracy requirements of the control system are required. Higher, such as the control core must fully support the embedded analog front-end and mixed-signal processing, and the converters, amplifiers, isolators, power components, etc. around the controller must be tuned to meet the requirements of closed-loop circuits for precise control of the system. Demanding.

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