Method for realizing energy conservation by reducing harmonics in power system

Abstract

The invention discloses a method for realizing energy conservation by reducing harmonics in a power system, which solves the technical problems of power loss and energy waste caused by the harmonics in the power system. The method adopts a technical scheme comprising that: an inductive reactance current limiting device is arranged in series between an outer network and a user load and is a current limiting coil; a compensation coil coaxial with the current limiting coil is also arranged in the inductive reactance current limiting device; and an induction electromotive force generated by the compensation coil and the harmonic potential of commercial power are equal in strength and are at an angle of 180 degrees in direction. The method has the following advantages of having simple implementation, eliminating clutters and harmonic interference by winding an iron core with the coils through a mutual induction and electromagnetic balancing theory, further increasing the power and active power, having simple access, facilitating installation, bringing about high cost benefit, having remarkable electricity-saving effect, maintaining proper voltages and currents and prolonging the service life of an electricity utilization device of an electricity unit.

Description

technical field [0001] The invention belongs to the field of power supply systems, and relates to a method for realizing energy saving by reducing harmonics in a power system, in particular to a method of inducting harmonic voltages that are equal in magnitude and opposite in direction by means of coils and iron cores to offset the harmonics in the external network. Harmonics to achieve the purpose of energy saving. Background technique [0002] Ensuring the stability of power supply and maintaining good power quality are the basic principles of power system operation. In recent years, due to the extensive use of non-linear loads and the stringent requirements for power quality of precision equipment, how to ensure that the power supply environment is not affected by bad power quality is easy. It has become a subject that the power company industry and related research institutions attach importance to. In the power system, the root cause of harmonics is due to nonlinear lo...

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Problems solved by technology

[0004] The purpose of this invention is to solve the technical problems of power loss and energy waste caused by harmonics in the power system, and a method for energy saving by reducing harmonics in the power system is designed. On the basis of the wave idea, the voltage induced by the coil is used to offset the harmonic voltage generated in the power system, and the principle of phase balance is used to make the induced electromotive force and the pollution harmonic voltage equal in size and opposite in phase, so that the power supply output is stable

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