This article will provide you with the 10 latest cutting-edge frequency conversion technologies for domestic general-purpose inverters, which involve low electromagnetic noise, mute, specialization, systemization, networking, "easy to use" modes, parameter trend graphics, and built-in applications. 10 technologies of software, distributed applications, parameter self-adjustment, and function setting software. The 10 leading-edge frequency conversion technologies will be explained in detail below.

(1) Low electromagnetic noise and silence

In addition to the use of high-frequency carrier mode sine wave SPWM modulation to achieve silence, the new domestic general-purpose frequency conversion is also added with an AC reactor or active power factor correction circuit APFC on the input side of the general frequency conversion, and Soft-PWM control is adopted in the inverter circuit Technology, etc., to improve the input current waveform, reduce power grid harmonics, comply with EMC international standards in terms of anti-interference and suppression of higher harmonics, and achieve the so-called clean power conversion. For example, the flexible PWM control technology adopted by the domestic inverter brand Anbangxin inverter achieves lower noise operation.

(2) Specialization

In order to make better use of the unique function of frequency conversion speed control technology and to meet the needs of on-site control as much as possible, the new domestic general-purpose inverters have been derived from many special models. Taking the inverter of Shenzhen Anbangxin system as an example, we have developed special models such as fans, pumps, air conditioners, cranes, constant pressure water supply, CNC machine tools, textile machinery, synchronous conveyors, and sand dredgers. , Special model for wire drawing machine and special model for air compressor, etc.

(3) Systematization

In addition to the development of stand-alone digital, intelligent and multifunctional, domestic general-purpose inverters are also developing towards integration and systemization. The completion of these technologies can enable the integrated configuration of inverters, servo devices, controllers and communication devices, and even automation and drive systems, communication and data management systems can be carried out as drive devices are usually embedded in "fully integrated automation" systems, the purpose is Provide users with the best system features.

(4) Networking

The new domestic general-purpose inverter can provide a variety of compatible communication interfaces and support a variety of different communication protocols. The built-in RS485 interface allows the personal computer to input operation commands and set function code data to the general-purpose inverter.

(5) "Easy to use" mode

The solidified “debugging guide” in the new-style domestic general-purpose inverter will guide you to fill in the debugging form step by step, without needing to remember any parameters, which fully reflects the ease of operation.

(6) Parameter trend graph

The parameter trend graph of the domestic new general-purpose inverter can display the current operating status of each signal in a timely manner. The user can monitor and record the operating parameters at any time during the debugging process.

(7) Built-in application software

The new domestic general-purpose inverter can be built with a variety of application software, and some brands can provide more than 130 kinds of application software to meet the needs of on-site process control, such as PID control software, tension control software, speed grade chain, speed follow, Current balance, inverter function setting software, communication software, etc.

(8) Distributed application

Modern automation projects tend to be distributed solutions, which requires that intelligent equipment must be modular, distributed, and integrated with modern machinery and equipment. This will not only bring cost advantages in production, machine commissioning and maintenance, but also bring high flexibility for equipment expansion.

(9) Parameter self-adjustment

The user only needs to set the data set code without having to set it item by item. The universal inverter will automatically adjust the operating parameters to the best state.

(10) Function setting software

The function of the domestic general-purpose inverter can be set and downloaded under the WINDOWS95/98 environment, and data communication can be carried out.