Global Prevalence of Energy Inverter Market Rise - By: Allan Michael Taylor

With the upgrade the overall level of manufacturing, cost consciousness has gradually become the consensus of all sectors concerned, because this is directly related to the company's survival and development. As the electric drive is the industry leading energy-consuming devices in the control cabinet occupy a larger space, so the choice of drive technology for business also determines the level of production costs, plus the "wind energy" in the global prevalence, frequency converter is This demand was gradually developed.

Textiles, elevators and other industries is the application of traditional industries transducer, with the traditional development of the industry guidance, the frequency converter applications have appeared many new features. In these areas, of inverter products at home and abroad has been "a hundred schools contend", competition is fierce, how in the "Red Sea market" come to the fore, inverter manufacturers are all in the new technology, new ideas pains.

Elevator industry at home and abroad, miscellaneous ladder, escalators, moving walkways also a large number of non-frequency technology, almost all of the other elevators used VVVF inverter technology. General discussion of the elevator in the industry, "conversion system" has two main factions: the basic use of large enterprises in which discrete components assembled elevator dedicated frequency conversion system, that is: in the control cabinet of a certain relatively discrete space to install the power module, capacitor, drive with control of the printing plates, to integrate the entire control system; another faction, the individual large enterprises and the vast majority of SMEs, using a common inverter. This converter is a fully independent unit, can be independent manufacturers to purchase a special converter.

Special frequency converter as most of their own development by the elevator manufacturer, and it is easy and its control system (elevator Control System) for information exchange, Elevator control system can be seamless joints and drive system, which for the safety of elevators, Reliability is important. In addition, due to special frequency converter assembly is separate, so that if the damaged parts of a frequency converter, as long as you can replace the components, maintenance, relatively small cost; while for general Bianpin Qi, because its input and output, etc. Jie Kou limited resources and the elevator control system of information exchange is limited. In addition, if a universal converter device is damaged, you are basically going to replace the inverter, its high maintenance costs. "But he also stressed that, due to the separation of special frequency converter, which can be relatively poor electromagnetic compatibility, and general purpose inverter Due to the overall design, can do a better electromagnetic compatibility; In addition, since the common general converter sex, the lower their production costs may, and for the SMEs, have greater purchasing options and shop around opportunities.

Product performance inverter attention to detail

Inverter technology, the industry needs rapid and increasingly close relations with expert analysis: a new generation of frequency converter to realize the first fully digital, especially with distributed communications, networking, and has a programmable functions; industry specific frequency device to achieve smaller size; Networking and systematic will reduce production costs, the trend is clear. But in the industry, these requirements are not user most want?

Erfangji in Shanghai textile machine, the inverter has reached essentially the application of more than 80%. As a result of the primary motor inverter control can be the greatest potential for mining motor reactive power, full use of and improve the power factor, so as to achieve energy saving. At the same time strengthen the textile mill of Frequency Control on Mechatronics, line measurement, display and control, improve process control accuracy, to ensure good quality results. So, with the exception of a small number of old models, the Shanghai Erfangji all conventional models and new models are widely used in the converter.

From the user's perspective, the inverter heat dissipation is a more prominent issue. As the textile mills of high ambient temperature, different species of the spinning process changes greatly. When the low count yarn spinning, yarn cotton Fei Xu a very serious problem. This requires that textile equipment in the environmental temperature of 40 ℃, electric cabinet temperature reaches above 60 ℃, stable job, and does not alarm. At the moment, not ideal for small and medium textile mill sanitation, open electrical cabinet engineers, the inverter is often being covered by a large number of cotton layer, which also required to have a lower inverter heat and better heat dissipation .

In the elevator area, safety is always the first element. Electromagnetic compatibility frequency converter products will be more reasonable to make it smaller and smaller for outside interference. At the same time, more energy-efficient matrix for the frequency, will improve its reliability and gradually applied to all industries, including elevator motor control field.

Inverter, "Blue Ocean Innovation" industry needs to be considered

Inverter applications not only lift the textile industry, but its development represents the area of the drive control of technological progress.

In the elevator industry, the field of large-capacity inverter will be the development of the application of low power will also be more common; power devices and the overall converter power loss will become smaller and smaller, increasing the energy efficiency of inverter; with Nengliang feedback function of frequency converter will gradually spread in the elevator area, application of super capacitors and other large storage devices will also be the inverter drive frequency in the elevator appeared in the field. In the textile industry, frequency and transmission technology is being driven towards multi-axis synchronous transmission, field bus control network technology direction. A frequency converter has been able to control multiple axes simultaneously, the precise synchronization. But should not be overlooked is that when in the long run, there are a certain failure rate, its stability and reliability have to be improved.

In addition, the frequency combination of technology and control technology - integrated controller. The emergence of this product makes the elevator control system (including the elevator drive, control and management system) to achieve a high degree of integration, which is conducive to small elevator control system, saving space, but also conducive to the production of non-elevator control system, elevator machine factory technical progress. This "integrated control" thinking is the relatively small size should be a trend in the elevator. For more specifications of high-speed elevators elevator, because a larger system capacity, it does not necessarily feasible. Meanwhile, in terms of performance, to focus on integrated control system after the high reliability and future Maintenance convenience and low cost.

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