A control method, device, equipment and storage medium for fast reactive power compensation
A compensation device and control method technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation and other directions, can solve the problems of low reactive power compensation speed, slow switching speed of compensation capacitors, etc., to improve speed and accuracy , to meet the needs of fast reactive power compensation, the effect of shortening the response time
Active Publication Date: 2022-06-03
东方博沃(北京)科技有限公司
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Problems solved by technology
At this time, the switching speed of the compensation capacitor is slow, usually at the second level, which cannot meet the requirements of some application scenarios that require fast reactive power compensation (such as the flying shear process in the steel industry, the spot welding machine operation in the automotive industry, and other actual operating scenarios). Compensation requirements, resulting in a relatively low speed of reactive power compensation
Method used
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[0055] In addition, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. usually in
[0061] Referring to FIG. 1, FIG. 1 shows a control method of a fast reactive power compensation provided by an embodiment of the present application.
[0067] S102, from the three-phase electrical signal sequence, optionally a phase electrical signal sequence as the target electrical signal sequence, the
[0072] S103, in the process that the compensation device provides the reactive power compensation service for the target power consumption system, use the current
[0075]
[0076]
[0077]
[0080] P
[0081] Q
[0098]
[0102] S301, from the compensation device, determine that the compensation device is currently invested in the target power consumption system
[0104] S302, using the unit compensation capacity as the first compensation capacity to perform the step size prediction step cutout, in the
[0105] Here, the elect...
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The present application provides a fast reactive power compensation control method, device, equipment and storage medium, specifically: collect a three-phase electrical signal sequence from the target power consumption system, select a phase electrical signal sequence as the target electrical signal sequence, Use the analog-to-digital conversion result of the target electrical signal sequence as the basic control data; when performing reactive power compensation, use the basic control data in the current half detection cycle to calculate the first power factor of the current half detection cycle; obtain the first half of the detection cycle The second power factor of a detection cycle, the sum of the first power factor and the second power factor is used as the actual power factor of the complete detection cycle; by judging whether the actual power factor is within the standard power factor range of the target power consumption system, to come. Control the switching state of the compensation device. In this way, through the half-wave detection method, the response time of the compensation device can be shortened, and the control error caused by the asymmetry of the upper and lower waves of the system waveform and the offset of the neutral line can be avoided.
Description
A control method, device, device and storage medium for fast reactive power compensation technical field The application relates to the technical field of reactive power compensation, in particular, to a controller for fast reactive power compensation methods, devices, equipment and storage media. Background technique Reactive power compensation, also known as reactive power compensation, is a kind of power factor that improves the power grid in the power supply system, reduces the A technology that reduces the loss of power supply transformers and transmission lines to improve power supply efficiency and improve the power supply environment. From this it can be seen that The reactive power compensation device is in an indispensable and very important position in the power supply system. It can minimize the loss of the power grid and improve the power supply efficiency and power quality of the power grid. At present, in the passive compensation scheme, the contact...
Claims
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IPC IPC(8): H02J3/18
CPCY02E40/30
Inventor 宋国伟李新娟秦玲王建光宋一鸣李姗姗李波
Owner 东方博沃(北京)科技有限公司