Three-phase alternating-current building voltage-stabilizing electricity-saving device

Abstract

The invention discloses a three-phase alternating-current building voltage-stabilizing electricity-saving device which can stabilize the voltage and filter out harmonic waves of a power grid. The three-phase alternating-current building voltage-stabilizing electricity-saving device comprises a harmonic filtering circuit, a voltage stabilizing and regulating mechanism, a sampling circuit, a master controller and a control terminal. The harmonic filtering circuit, the voltage stabilizing and regulating mechanism, the sampling circuit and the control terminal are all connected to the master controller. The harmonic filtering circuit and the voltage stabilizing and regulating mechanism are connected between an external power grid input end and a load output end in parallel. The sampling circuit is further connected with the voltage stabilizing and regulating mechanism. Due to the cooperation among the harmonic filtering circuit, the voltage stabilizing and regulating mechanism, the sampling circuit, the master controller and the control terminal, the three-phase alternating-current building voltage-stabilizing electricity-saving device has the function of stabilizing the voltage and the function of filtering out the harmonic waves of the power grid.

Description

Technical field [0001] The invention relates to a building power saver, in particular to a three-phase power building stabilized power saver capable of stabilizing voltage and filtering harmonics of the power grid. Background technique [0002] With the rapid development of the country’s economy, power resources are becoming increasingly scarce. According to the requirements of the "China Green Lighting Project", building electricity saving must become an important link in energy conservation. "Vigorously promote new technologies and products for energy saving in buildings, and strive to reduce urban power consumption" has become the focus of work in building a conservation-oriented society. [0003] The currently popular power savers on the market have the following shortcomings: First, most of them do not have the function of stabilizing voltage. Many kinds of power savers in the market now simply reduce the supply voltage on the load side, and none of them have the function of s...

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Problems solved by technology

[0003] Currently popular power savers on the market have the following deficiencies: First, most of them do not have the function of stabilizing voltage. Many kinds of power savers popular in the market now simply reduce the power supply voltage on the load side, and none of them have the function of stabilizing voltage. When the grid voltage fluctuates slightly, the output voltage of the power saver fluctuates accordingly, which cannot provide a stable power consumption environment for the load; second, it does not have the function of harmonic control. None of them have the function of harmonic control. Due to the large power consumption of buildings and various types of loads, many loads will generate harmonics, and harmonics will have a greater degree of harm to power supply equipment, electrical equipment and power grids.

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