A power factor controller integrating active dynamic filter compensation and power factor adjustment

Abstract

The invention relates to a power factor controller integrating active dynamic filtering compensation and power factor adjustment. The power factor controller comprises a power factor adjusting part, a signal detecting and controlling part and an active dynamic filtering and compensating part. The working principles of the power factor controller are as follows: monitored electric power system current and voltage information is processed, and the processed information is transmitted to a main control module; the main control module processes the information, calculates required reactive power compensation amount and compensation current, and sends corresponding instructions to control a capacitor group and a current compensation generator to carry out corresponding compensation; and post-compensation results are fed back to the main control module, so that adjustment can be carried out timely.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, and in particular relates to a power factor controller integrating active dynamic filter compensation and power factor adjustment. Background technique [0002] In electrical equipment, the load equipment absorbs electrical power (active power) from the grid as a power source, or converts it into another form of energy, or converts it into a mechanical output. For this reason, inductive loads usually have to obtain reactive energy from the grid that is not actually required. This energy, if not immediately converted to other forms of energy, will increase the total power flowing in the grid. To reduce the harm caused by such negative effects, it is necessary to perform power factor correction in electrical equipment. Capacitor banks are often used for power factor correction to provide reactive energy on site to meet the need to transmit active power. [0003] With the progress of...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of power factor correction and harmonic elimination in the operation of the existing power grid, and provide a power factor controller integrating active dynamic filter compensation and power factor adjustment. The power factor controller It can simultaneously display and adjust the power factor and harmonics in the power grid, and its technical scheme is as follows:

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