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Active power filters
有源滤波
Active power filters

The Active filter has two functions: a closed-loop control system and independent selection of each harmonic.

  • The closed-loop control system detects the magnitude and reactive power of each harmonic in the current and automatically corrects it by comparing it with the target set by the user.

  • The ability to independently select each harmonic comes from advanced algorithms. The compensation current released by the filter is perfectly injected into the selected target harmonic, which guarantees the user-locked target harmonic the waves will be filtered out perfectly.

The closed-loop control system of the active power filter also helps the filter achieve excellent reactive power compensation and three-phase balancing functions.


SPECIFICATIONS

Solution 

  • The active power filter solves power quality problems such as harmonic pollution, three-phase unbalance and reactive power compensation. 

  • Provide customers with harmonic filtering, three-phase balancing and capacitive or inductive reactive power compensation.

  • Through the parallel expansion of the master-slave modules, the rich filtering scheme from tens of amperes to thousands of amperes can provide the most   optimized solution for each system. 

  • Active dynamic filters can be installed in low-voltage powe r grids and can be connected to medium-voltage systems via suitable step-up transformers.

Active power filters bring the following benefits to power delivery systems. 

  • Reduce downtime

  • Improve the efficiency of system operation and reduce CO2 emissions 

  • Meet stringent power bureau requirements and avoid fines or power outages 

  • No special analysis of the grid is required, and the implementation of the solution is quick and simple 

  • It will not be overloaded, and is especially suitable for low-voltage systems with fast load changes

Typical application industries 

  • Oil & Gas Industry (Onshore & Offshore) 

  • Iron and steel industry 

  • Water treatment industry

  • Cement industry 

  • Automotive industry 

  • Process control industry 

  • Paper industry

  • Solar energy industry 

  • Printing Industry ...... 

The modular product is a compact product developed for com mercial and residential as well as light  industrial applications, and is suitable for both three-phase three-wire and three-phase Four-line. The wall-mounted  mode makes the product suitable for applications where space is limited. It can also be installed in enclosures. 

Typical application industries

  • Office and commercial buildings 

  • Computers and Data Centers

  • Residence

  • UPS systems, elevators and lighting systems 

  • Light industry (e.g. remote pumping stations)

  • Rail transit......

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