Intelligent active filter system

Abstract

The intelligent active filter system comprises an active filter body, an industrial personal computer, a switching unit, a fault detection unit, a software updating unit, a prompt unit, a power supply quality detection unit, a networking control unit, a data transmission unit, a data receiving and control unit, a communication identification access unit and a communication simulation unit, the fault monitoring unit is further provided with a voiceprint and noise data acquisition subunit, a voiceprint and noise recognition subunit and a database subunit. The equipment is small in overall occupied space and more compact, the cost is reduced, communication networking between the equipment can be automatically achieved after installation and maintenance, communication analogue simulation operation can be achieved, the equipment can be automatically switched to another set of equipment when a fault occurs, related managers can be indicated to maintain the equipment when the corresponding parts go wrong, and the maintenance efficiency is improved. Software can be repaired and updated again, networking of active filters in different installation areas can be achieved, and managers can detect working data and performance and can remotely control opening and closing and adjust output power.

Description

technical field [0001] The invention relates to the technical field of power equipment, in particular to an intelligent active filter system. Background technique [0002] Active power filter is a new type of power harmonic control special equipment made of modern power electronic technology and digital signal processing technology based on high-speed DSP devices; it is composed of two main parts: command current calculation circuit and compensation current generation circuit. When working, the main control system monitors the current signal in the line in real time, and outputs the signal to the command current operation circuit, converts the analog current signal into a digital signal, and sends it to a high-speed digital signal processor (DSP) to process the signal and convert the harmonics. It is separated from the fundamental wave, and sends drive pulses to the compensation current generating circuit in the form of a pulse width modulation (PWM) signal to drive the IGBT...

AI Technical Summary

Problems solved by technology

One: Usually, there is only one set of active filters in a power supply area. When quality problems occur and are not maintained in time, it will have an adverse effect on the normal power supply, and may cause abnormal power supply and damage to electrical equipment

Second: The active filter does not have fault self-check and repair functions. When there is a quality problem, it will have an adverse effect on the normal power supply because it cannot actively prompt the relevant personnel and cannot be maintained in time.

Third: the casing of the existing active filter is generally made of ordinary metal steel plate, the heat dissipation performance is relatively poor, and the shape is large, and the installation parts are not compact, correspondingly occupying a large installation space, which will affect its working performance. Negative Effects

Fourth: Active filters in different installation areas cannot be used in a network. In reality, when an area needs to be expanded, new equipment will be reinstalled, and it is possible that the equipment installed in other areas is under a situation where the load is too small. The two cannot Complementary use, so not only will it increase unnecessary capital investment, but it will also not be conducive to the efficient use of resources

Fifth: The existing active filters do not have the function of automatic identification and networking. When networking is required after on-site installation or maintenance, technical personnel are usually required to repeatedly perform data setting and adjustment, which will bring inconvenience to technical personnel, and Not conducive to improving work efficiency

Sixth: The communication software system does not have a simulation function. It is possible that after various software is connected to the system, it will cause communication conflicts, communication storms, communication interruptions and other states between the software, which will adversely affect its effective application

Seventh: Management personnel cannot monitor the working performance of the active filter in real time at the remote end, let alone remotely control it, which will bring inconvenience to related management work

Images