CN112783251A - Transformer voltage tracking feedback automatic adjusting device and adjusting method thereof - Google Patents
Transformer voltage tracking feedback automatic adjusting device and adjusting method thereof Download PDFInfo
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- CN112783251A CN112783251A CN202110009807.1A CN202110009807A CN112783251A CN 112783251 A CN112783251 A CN 112783251A CN 202110009807 A CN202110009807 A CN 202110009807A CN 112783251 A CN112783251 A CN 112783251A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/561—Voltage to current converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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- Supply And Distribution Of Alternating Current (AREA)
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Abstract
The invention provides a transformer voltage tracking feedback automatic regulating device and a regulating method thereof, wherein the transformer voltage tracking feedback automatic regulating device comprises a signal acquisition module, a control module, a display module, a signal storage feedback module, a switching controller and a transformer, wherein the signal acquisition module acquires and stores a voltage fluctuation curve in a transformer area by using a voltage sensor and voltage signal acquisition software, the control module is used for dynamically regulating and controlling the switching controller after analyzing and processing corresponding signal information, the switching controller is used for dynamically controlling the switching position and frequency of the transformer, the signal storage feedback module dynamically acquires the current voltage value in real time, stores the current voltage value and feeds the current voltage value back to the control module, the transformer is used for regulating line voltage, the display module is used for displaying a basic value in a line, the invention effectively improves the control mode of the existing transformer, greatly prolongs the service life of devices and greatly improves the energy utilization rate.
Description
Technical Field
The invention relates to the technical field of transformer control and regulation, in particular to a transformer voltage tracking feedback automatic regulating device and a regulating method thereof.
Background
A transformer is a device that changes an alternating voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). In electrical equipment and wireless circuits, the high-voltage power supply is often used for voltage rise and fall, impedance matching, safety isolation and the like. In a generator, an electrical potential can be induced in a coil, whether the coil is moved through a magnetic field or a magnetic field is moved through a stationary coil. In both cases, the value of the magnetic flux is constant, but the amount of the magnetic flux linked with the coil varies, which is the principle of mutual induction. A transformer is a device for transforming voltage, current and impedance by using mutual electromagnetic induction.
A power transformer is a stationary electrical device that is used to transform an ac voltage (current) of a certain value into another voltage (current) of the same frequency or different values. When the primary winding is energized with an alternating current, an alternating magnetic flux is generated, and the alternating magnetic flux is magnetically conducted through the iron core, so that an alternating electromotive force is induced in the secondary winding. The level of the secondary induced electromotive force is related to the number of turns of the primary winding, i.e. the voltage is proportional to the number of turns. The main role is to transmit electrical energy, and thus, the rated capacity is its main parameter. The rated capacity is a conventional value for the power delivered, which characterizes the amount of electrical energy transmitted, expressed in kVA or MVA, and is used to determine the rated current which does not exceed the temperature rise limit under defined conditions when a rated voltage is applied to the transformer.
When the transformer is used, the service life of elements is reduced due to frequent switching, and the power grid and equipment are damaged by excessive short-time impact current, so that the voltage of the power grid fluctuates; meanwhile, the blind switching easily causes electric energy waste; the existing advanced transformer can realize automatic adjustment, but cannot realize automatic acquisition and automatic feedback, the adjustment is delayed and inaccurate, and the electric energy still has great waste.
Disclosure of Invention
Technical problem to be solved
In view of the deficiencies of the prior art, the present invention provides an automatic transformer voltage tracking feedback adjustment device and an adjustment method thereof, so as to solve the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the transformer voltage tracking feedback automatic regulating device comprises a signal acquisition module, a control module, a display module, a signal storage feedback module, a switching controller and a transformer, wherein the signal acquisition module acquires and stores a voltage fluctuation curve in a transformer area by using a voltage sensor and voltage signal acquisition software, the control module is used for dynamically regulating and controlling the switching controller after analyzing and processing corresponding signal information, the switching controller is used for dynamically controlling the switching position and frequency of the transformer, the signal storage feedback module dynamically acquires the current voltage value in real time to store and feed back the current voltage value to the control module, the transformer is used for regulating the line voltage, the display module is used for displaying the basic numerical value in a line, and the control module, the signal acquisition module, the control module, the switching controller and the transformer are connected in series, The display module, the signal storage feedback module and the switching controller are electrically connected, the signal acquisition module is further electrically connected with the signal feedback control module and the display module, and the switching controller is further electrically connected with the signal storage feedback module and the transformer.
Preferably, the control module comprises a signal analysis module, a signal processing module, a signal comparison module and a signal control module.
Preferably, the signal analysis module is used for dividing the voltage fluctuation curve, dividing the voltage fluctuation curve into a typical voltage time period and a typical voltage fluctuation time period, and storing and memorizing data.
Preferably, the signal processing module is configured to discretize typical voltage fluctuation time period data divided by the data analysis module, extract a voltage characteristic value, and write the voltage characteristic value into the typical voltage fluctuation time period to form a target voltage value.
Preferably, the signal comparison module is electrically connected with the signal storage feedback module and the signal acquisition module, and compares the difference value of the real-time voltage of the line with the target voltage value.
Preferably, the voltage characteristic value includes a target time and a characteristic voltage, the target time is a specific time period of a typical voltage fluctuation, and the characteristic voltage is a specific average voltage value of the typical voltage fluctuation.
Preferably, the signal storage feedback module is provided with a storage database, the storage database dynamically compares the voltage data, and then sends the voltage data to the signal comparison module, and stores the voltage fluctuation curve and the characteristic value.
Preferably, the signal control unit adjusts the switching target value and sends the switching target value to the switching controller according to the comparison result of the signal comparison unit.
Preferably, the display parameters of the display device include time, a current voltage value, a preset voltage value and a switching target value.
The method for adjusting the transformer voltage tracking feedback automatic adjusting device is characterized by comprising the following steps: the method comprises the following steps:
firstly, a signal acquisition module acquires a full-time voltage signal to generate a voltage fluctuation curve;
step-by-step dividing the voltage fluctuation curve into a typical voltage time period and a typical voltage fluctuation time period by a signal analysis module;
thirdly, the signal processing module carries out discrete voltage data processing on the typical voltage fluctuation time period data, extracts characteristic values and generates target values, namely target voltage values
Fourthly, the signal comparison module compares the current value with the target value;
fifthly, the signal control module sets a switching target value according to the comparison result of the signal comparison module and sends the switching target value to a switching controller;
and sixthly, the signal storage feedback module dynamically compares the current value with the set value, and then stores the comparison data and feeds the comparison data back to the signal comparison module for feedback control.
(III) advantageous effects
The invention provides a transformer voltage tracking feedback automatic regulating device and a regulating method thereof, which have the following beneficial effects: the service life reduction of elements caused by frequent switching and the damage of excessive short-time impact current to a power grid and equipment are changed; meanwhile, the electric energy waste caused by blind switching is changed. The switching target value is determined according to the typical voltage value within a period of time, the power grid and equipment are ensured to work in a rated or slightly low voltage state by using a small number of taps and accurate switching time and switching point, the service life of elements is prolonged, electric energy is saved, a real-time voltage acquisition feedback technology is adopted, tap positions can be timely and accurately switched, a more accurate and stable voltage value is obtained, corresponding data are stored, so that an electric energy fluctuation curve has a memory function, the switching of a transformer can be adjusted in advance, the instability originally caused during the voltage fluctuation period is improved, the electric energy quality is improved, and the electric equipment is protected.
Drawings
FIG. 1 is a schematic diagram of a transformer voltage tracking feedback automatic regulating device according to the present invention;
FIG. 2 is a schematic diagram of a control module of the transformer voltage tracking feedback automatic regulating device according to the present invention;
fig. 3 is a schematic flow chart of a method for adjusting the transformer voltage tracking feedback automatic adjusting device according to the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
The embodiment of the invention provides a transformer voltage tracking feedback automatic regulating device which comprises a signal acquisition module, a control module, a display module, a signal storage feedback module, a switching controller and a transformer, wherein the signal acquisition module acquires and stores a voltage fluctuation curve in a transformer area by using a voltage sensor and voltage signal acquisition software, the control module is used for dynamically regulating and controlling the switching controller after analyzing and processing corresponding signal information, the switching controller is used for dynamically controlling the switching position and frequency of the transformer, the signal storage feedback module dynamically acquires the current voltage value in real time, stores the current voltage value and feeds the current voltage value back to the control module, the transformer is used for regulating the line voltage, the display module is used for displaying the basic numerical value in a line, and the control module, the signal acquisition module, the display module, the voltage fluctuation curve in the transformer area are dynamically regulated and fed back to the control module, The signal storage feedback module is electrically connected with the switching controller, the signal acquisition module is also electrically connected with the signal feedback control module and the display module, and the switching controller is also electrically connected with the signal storage feedback module and the transformer.
The control module comprises a signal analysis module, a signal processing module, a signal comparison module and a signal control module.
The signal analysis module is used for dividing the voltage fluctuation curve, dividing the voltage fluctuation curve into a typical voltage time period and a typical voltage fluctuation time period, and storing and memorizing data.
The signal processing module is used for discretizing typical voltage fluctuation time segment data divided by the data analysis module, extracting a voltage characteristic value and writing the voltage characteristic value into the typical voltage fluctuation time segment to form a target voltage value, the signal comparison module is electrically connected with the signal storage feedback module and the signal acquisition module, difference comparison is carried out on line real-time voltage and the target voltage value, the voltage characteristic value comprises target time and characteristic voltage, the target time is specifically the typical voltage fluctuation time segment, the characteristic voltage is specifically an average voltage value of the typical voltage fluctuation, the signal storage feedback module is provided with a storage database, the storage data carries out dynamic comparison on the voltage data, then the voltage data are sent to the signal comparison module, and a voltage fluctuation curve and the characteristic value are stored.
And the signal control unit adjusts the switching target value according to the comparison result of the signal comparison unit and sends the switching target value to the switching controller, and the display parameters of the display device comprise time, the current voltage value, the preset voltage value and the switching target value.
The method for adjusting the transformer voltage tracking feedback automatic adjusting device is characterized by comprising the following steps: the method comprises the following steps:
firstly, a signal acquisition module acquires a full-time voltage signal to generate a voltage fluctuation curve;
step-by-step dividing the voltage fluctuation curve into a typical voltage time period and a typical voltage fluctuation time period by a signal analysis module;
thirdly, the signal processing module carries out discrete voltage data processing on the typical voltage fluctuation time period data, extracts characteristic values and generates target values, namely target voltage values
Fourthly, the signal comparison module compares the current value with the target value;
fifthly, the signal control module sets a switching target value according to the comparison result of the signal comparison module and sends the switching target value to a switching controller;
and sixthly, the signal storage feedback module dynamically compares the current value with the set value, and then stores the comparison data and feeds the comparison data back to the signal comparison module for feedback control.
In conclusion, the voltage tracking feedback self-adjusting device is arranged, so that the service life of elements is reduced due to frequent switching, and the damage of excessive short-time impact current to a power grid and equipment is avoided; meanwhile, the electric energy waste caused by blind switching is changed. The switching target value is determined according to the typical voltage value within a period of time, the power grid and equipment are ensured to work in a rated or slightly low voltage state by using a small number of taps and accurate switching time and switching point, the service life of elements is prolonged, electric energy is saved, a real-time voltage acquisition feedback technology is adopted, tap positions can be timely and accurately switched, a more accurate and stable voltage value is obtained, corresponding data are stored, so that an electric energy fluctuation curve has a memory function, the switching of a transformer can be adjusted in advance, the instability originally caused during the voltage fluctuation period is improved, the electric energy quality is improved, and the electric equipment is protected.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a transformer voltage tracks feedback automatic regulating apparatus which characterized in that: the transformer voltage tracking feedback automatic adjusting device comprises a signal acquisition module, a control module, a display module, a signal storage feedback module, a switching controller and a transformer, wherein the signal acquisition module acquires and stores a voltage fluctuation curve in a transformer area by using a voltage sensor and voltage signal acquisition software, the control module is used for dynamically adjusting and controlling the switching controller after analyzing and processing corresponding signal information, the switching controller is used for dynamically controlling the switching position and frequency of the transformer, the signal storage feedback module dynamically acquires the current voltage value in real time for storage and feeds the current voltage value back to the control module, the transformer is used for adjusting the line voltage, the display module is used for displaying the basic numerical value in a line, and the control module is electrically connected with the signal acquisition module, the display module, the signal storage feedback module and the switching controller, the signal acquisition module is also electrically connected with the signal feedback control module and the display module, and the switching controller is also electrically connected with the signal storage feedback module and the transformer.
2. The transformer voltage tracking feedback automatic regulating device according to claim 1, characterized in that: the control module comprises a signal analysis module, a signal processing module, a signal comparison module and a signal control module.
3. The transformer voltage tracking feedback automatic regulating device according to claim 2, characterized in that: the signal analysis module is used for dividing the voltage fluctuation curve, dividing the voltage fluctuation curve into a typical voltage time period and a typical voltage fluctuation time period, and storing and memorizing data.
4. The transformer voltage tracking feedback automatic regulating device according to claim 3, characterized in that: the signal processing module is used for discretizing the typical voltage fluctuation time period data divided by the data analysis module, extracting a voltage characteristic value and writing the voltage characteristic value into the typical voltage fluctuation time period to form a target voltage value.
5. The transformer voltage tracking feedback automatic regulating device according to claim 4, characterized in that: the signal comparison module is electrically connected with the signal storage feedback module and the signal acquisition module and compares the difference value of the real-time voltage of the line with the target voltage value.
6. The transformer voltage tracking feedback automatic regulating device according to claim 4, characterized in that: the voltage characteristic value comprises a target time and a characteristic voltage, the target time is a typical voltage fluctuation time period, and the characteristic voltage is an average voltage value of the typical voltage fluctuation.
7. The transformer voltage tracking feedback automatic regulating device according to claim 4, characterized in that: the signal storage feedback module is provided with a storage database, the storage database dynamically compares voltage data, then sends the voltage data to the signal comparison module, and stores a voltage fluctuation curve and a characteristic value.
8. The transformer voltage tracking feedback automatic regulating device according to claim 5, characterized in that: and the signal control unit adjusts the switching target value according to the comparison result of the signal comparison unit and sends the switching target value to the switching controller.
9. The transformer voltage tracking feedback automatic regulating device according to claim 5, characterized in that: the display parameters of the display device comprise time, a current voltage value, a preset voltage value and a switching target value.
10. A method for adjusting a transformer voltage tracking feedback automatic adjusting device is characterized by comprising the following steps: the method comprises the following steps:
firstly, a signal acquisition module acquires a full-time voltage signal to generate a voltage fluctuation curve;
step-by-step dividing the voltage fluctuation curve into a typical voltage time period and a typical voltage fluctuation time period by a signal analysis module;
thirdly, the signal processing module carries out discrete voltage data processing on the typical voltage fluctuation time period data, extracts characteristic values and generates target values, namely target voltage values
Fourthly, the signal comparison module compares the current value with the target value;
fifthly, the signal control module sets a switching target value according to the comparison result of the signal comparison module and sends the switching target value to a switching controller;
and sixthly, the signal storage feedback module dynamically compares the current value with the set value, and then stores the comparison data and feeds the comparison data back to the signal comparison module for feedback control.
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| CN202110009807.1A CN112783251A (en) | 2021-01-05 | 2021-01-05 | Transformer voltage tracking feedback automatic adjusting device and adjusting method thereof |
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| CN202110009807.1A CN112783251A (en) | 2021-01-05 | 2021-01-05 | Transformer voltage tracking feedback automatic adjusting device and adjusting method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114740246A (en) * | 2022-03-25 | 2022-07-12 | 苏州熠品质量技术服务有限公司 | Automatic measuring device for working voltage of transformer |
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