Power quality optimization energy-saving system based on harmonic elimination of power system

Abstract

The invention discloses a power quality optimization energy-saving system based on power system harmonic elimination, which comprises a high-voltage power distribution system, a high-voltage / low-voltage conversion transformer and a low-voltage load system, and is characterized in that a harmonic elimination system is connected between the high-voltage power distribution system and the high-voltage / low-voltage conversion transformer; the harmonic elimination system comprises a high-voltage acquisition system, a low-voltage acquisition system, a control strategy algorithm analysis system, a control system, an execution mechanism and an adjustable harmonic elimination device. The power quality optimization energy-saving system based on power system harmonic elimination is inserted between anexisting user high-voltage power distribution system and a high-voltage / low-voltage conversion transformer, and power consumption data of a power supply high-voltage side and a load low-voltage side are collected in real time through a systematic method and analyzed through a control strategy algorithm; and finally, the PQCS is controlled to realize bidirectional effective suppression of total harmonics and greatly and effectively reduce power consumption loss.

Description

technical field [0001] The invention belongs to the technical field of power grid energy-saving control, and relates to an energy-saving system, in particular to a control system based on eliminating harmonics in the power grid to achieve the purpose of energy saving. Background technique [0002] The power supply grid system is an important system for power supply. The stability of its operation directly affects the operation safety of power supply lines and the stability of electrical equipment. Stability and reliability are also important reasons for increasing power grid operation energy consumption. [0003] At present, the network loss of my country's power grid is relatively high, which reduces the utilization rate of power resources and damages social and economic benefits. Therefore, it is of great significance to reduce network loss and explore effective energy-saving means to improve economic efficiency and achieve sustainable development. Contents of the inven...

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Problems solved by technology

[0002] The power supply grid system is an important system for power supply. The stability of its operation directly affects the operation safety of power supply lines and the stability of electrical equipment. Stability and reliability are also important reasons for increasing power grid operation energy consumption

[0003] At present, the network loss of my country's power grid is relatively high, which reduces the utilization rate of power resources and damages social and economic benefits.

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