An Adjustable Reactor Used in Power Quality Control
A technology of power quality and reactance adjustment, applied to variable inductors, inductors, variable transformers, etc., can solve problems such as difficult production process, complex reactor structure, difficult maintenance, etc., to improve power supply quality, structure The effect of simple and simplified process
Active Publication Date: 2017-05-17
江苏万邦节能科技股份有限公司
View PDF11 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, one type of magnetron reactor relies on an external DC power supply to realize the saturation bias of the reactor core, such as the split core controllable reactor. This type of reactor has a complex structure and a difficult production process.
There is also a type of DC control current generated by its own thyristor rectification to change the saturation of the reactor core, such as a magnetic valve controllable reactor. Although the thyristor is used for fast response and mature technology, it is expensive and difficult to maintain.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0008] Two E-shaped iron cores 1 have opposite openings, and an I-shaped iron core 2 is sandwiched between them to form the iron core of the reactor. An adjusting winding 3 is provided on the middle iron column of one E-shaped iron core, and a reactance winding 4 is provided on the middle iron column of the other E-shaped iron core. There are two permanent magnets 5 embedded in the I-shaped iron core 2, which are respectively located between two pairs of opposite openings of the E-shaped iron core. The magnetization directions of the two permanent magnets 5 are parallel to the axial direction of the I-shaped iron core and in opposite directions. . Such as figure 1 As shown, the magnetization directions of the two permanent magnets 5 face each other. The two permanent magnets 5 establish a static and evenly distributed permanent magnetic field in the iron core. At this time, the internal magnetic field of the iron core is saturated, the magnetic permeability is low, and the r...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to an adjustable electric reactor used for controlling electric energy quality. An electric reactor iron core is formed by clamping one I-shaped iron core between two E-shaped iron cores with opposite openings, wherein an adjusting winding and a reactance winding are wound on middle iron columns of the two E-shaped iron cores respectively; a pair of permanent magnets with opposite magnetizing directions are embedded on the I-shaped iron core; and the two permanent magnets are located between the two pairs of opposite openings of the E-shaped iron cores respectively. By changing current in the adjusting winding, the magnetic conductivity of the iron cores is changed, so that the reactance value is changed. The adjustable electric reactor is simple in structure, low in construction cost and convenience for utilization and can be used for controlling the electric energy quality.
Description
technical field [0001] The invention relates to a reactor, in particular to an adjustable reactor which can be used for power quality control. Background technique [0002] With the increase of the grid capacity and the improvement of the quality requirements of the grid power supply, the adjustable reactor is more and more widely used in the power system: as a reactive power compensation device to absorb the capacitive reactive power of the grid, to ensure the stable operation of the grid; In the power filter, the harmonics of the power grid are filtered to ensure the quality of power supply; as the arc suppression coil, the inductive current is provided to neutralize the capacitive current in the single-phase ground fault, so that the arc is quickly extinguished and the line returns to normal; as a motor soft start device, high power The motor starts smoothly, avoiding the large impact of the large starting current on the power grid and causing the voltage and current fluc...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01F29/14H01F27/24
CPCH01F27/24H01F29/14H01F2029/143
Inventor 赵德军梅磊
Owner 江苏万邦节能科技股份有限公司