CN215599268U

CN215599268U - New forms of energy power station electric energy quality detection device

Info

Publication number: CN215599268U
Application number: CN202120918625.1U
Authority: CN
Inventors: 王浩; 邱涛; 张永明; 牟旭涛
Original assignee: Shandong Zhongshi Yitong Group Co Ltd
Current assignee: Shandong Zhongshi Yitong Group Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-01-21
Anticipated expiration: 2031-04-29

Abstract

The utility model provides a new energy power station electric energy quality detection device which comprises a power station operation parameter acquisition instrument, wherein the power station operation parameter acquisition instrument is connected with a synchronization unit, the synchronization unit is connected with a noise reduction unit, the noise reduction unit is connected with a main control unit, and the main control unit is connected with a background terminal through a signal transmission unit.

Description

New forms of energy power station electric energy quality detection device

Technical Field

The utility model belongs to the technical field of power quality detection, and particularly relates to a power quality detection device for a new energy power station.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

New Energy (NE) also called unconventional energy. Refers to various forms of energy sources other than traditional energy sources. The energy to be popularized is energy which is just developed and utilized or is actively researched, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy, nuclear fusion energy and the like.

At present, new energy power stations are widely distributed, and manual detection of electric energy quality cannot be realized, so that an electric energy quality detection device needs to be arranged for electric energy detection.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a new energy power station electric energy quality detection device.

According to some embodiments, the utility model adopts the following technical scheme:

the utility model provides a new forms of energy power station electric energy quality detection device, includes power station operating parameter collection appearance, power station operating parameter collection appearance and synchronization unit are connected, synchronization unit with fall the unit connection of making an uproar, fall the unit and be connected with the main control unit of making an uproar, the main control unit passes through signal transmission unit and backstage terminal connection. Wherein, the power station operation parameter acquisition appearance is provided with a plurality ofly.

The working principle is as follows: the plurality of power station operation parameter acquisition instruments acquire power station electric signals, voltage synchronization is realized through the synchronization unit, and the synchronized electric signals are transmitted to the noise reduction unit for noise reduction; the electric signal after noise reduction is transmitted to a main control unit for processing; meanwhile, the main control unit transmits the electric signal to the background terminal through the signal transmission unit, and the background terminal outputs an evaluation report.

Compared with the prior art, the utility model has the beneficial effects that:

the detection device adopted by the utility model is simple to operate, has high detection precision, and reduces the cost of manpower and material resources; the noise reduction unit has strong anti-interference capability and can filter interference generated by abnormal fluctuation of the electric signal; the adopted signal transmission unit can realize stable transmission of data, has strong transmission anti-interference capability and further improves the detection efficiency; in addition, the judgment mode of the evaluation system in the background terminal can provide technical reference for technicians and deal with the maintenance processing of the new energy power station.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.

FIG. 1 is a schematic diagram of a power quality detection device of a new energy power station of the utility model;

FIG. 2 is a circuit diagram of a noise reduction unit of the present invention;

FIG. 3 is a circuit diagram of the synchronization unit of the present invention;

fig. 4 is a schematic block diagram of a signal transmission unit of the present invention.

The specific implementation mode is as follows:

the utility model is further described with reference to the following figures and examples.

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1, this embodiment provides a new energy power station electric energy quality detection device, including power station operating parameter collection appearance, power station operating parameter collection appearance is connected with the synchronization unit, the synchronization unit with fall the unit connection of making an uproar, fall the unit connection of making an uproar with the main control unit, the main control unit passes through signal transmission unit and is connected with backstage terminal.

As one or more embodiments, the power station operation parameter acquisition instrument comprises a voltage acquisition device, a current acquisition device and a power acquisition device; but not limited to, a voltage acquisition device, a current acquisition device and a power acquisition device, and aims to acquire electric signals of a power station. Wherein, the power station electric signal comprises a voltage effective value, a current effective value, active power, reactive power, a power factor and harmonic waves.

As one or more embodiments, as shown in fig. 3, the synchronization unit includes a voltage dependent resistor RV and a voltage transformer, and the voltage dependent resistor RV is connected in parallel with two ends of the voltage transformer. One end of the piezoresistor RV is connected with the other end of the piezoresistor RV through a fourth resistor R4 and a second capacitor C2, and the other end of the piezoresistor RV is grounded; one end of the piezoresistor RV is connected with the negative electrode of the double-voltage comparator chip through a fourth resistor R4, and the positive electrode of the double-voltage comparator chip is grounded. The dual voltage comparator chip preferably adopts a dual voltage comparator integrated circuit LM 393. The synchronous unit that adopts can realize the synchronous collection to voltage signal, further improves and detects the precision.

As one or more embodiments, as shown in fig. 2, the noise reduction unit includes a triode, a base of the triode is connected to an emitter of the triode through a first resistor R1, and the emitter of the triode is grounded; the collector of the triode is connected with a VCC end through a third resistor R3; the collector of the triode is grounded through a third resistor R3 and a first capacitor C1. The base electrode of the triode is connected with the main control unit through a second resistor R2; and the collector of the triode is connected with the output end of the synchronization unit.

As one or more embodiments, as shown in fig. 4, the signal transmission unit includes a data processing chip, a power amplification chip, and an antenna switch chip, where a radio-frequency signal transmitting end of the data processing chip is connected to a radio-frequency signal receiving end of the power amplification chip, a radio-frequency signal transmitting end of the antenna switch chip is connected to a radio-frequency signal receiving end of the data processing chip, and a control end of the antenna switch of the data processing chip is connected to a switch signal end of the antenna switch chip. The model of the data processing chip preferably adopts RDA 8908A; the model of the power amplification chip preferably adopts RPM 6569; the antenna switch chip model preferably employs RDASW 61.

Example two

The embodiment provides a new forms of energy power station electric energy quality detection device, including power station operating parameter collection appearance, power station operating parameter collection appearance and synchronization unit are connected, the synchronization unit with fall the unit connection of making an uproar, fall the unit and be connected with the main control unit of making an uproar, the main control unit passes through signal transmission unit and backstage terminal connection.

The method comprises the following steps that a display screen is installed on a background terminal, an evaluation system is installed in the background terminal, and if the evaluation system judges that the error between the acquired electric parameter value and a normal value range is 0.5% -1%, the new energy power station is judged to be normally operated; if the evaluation system judges that the error between the acquired electric parameter value and the normal value is 1% -4%, judging the operation fault of the new energy power station, positioning a fault area and sending a fault signal; and if the evaluation system judges that the error between the acquired electric parameter value and the normal value range is more than 4%, directly disconnecting the power supply of the new energy power station and sending an alarm signal.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. The utility model provides a new forms of energy power station electric energy quality detection device, its characterized in that includes power station operating parameter collection appearance, power station operating parameter collection appearance and synchronization unit are connected, synchronization unit with fall the unit connection of making an uproar, fall the unit and be connected with the main control unit of making an uproar, the main control unit passes through signal transmission unit and backstage terminal connection.

2. The new energy power station power quality detection device of claim 1, wherein the power station operating parameter acquisition instrument comprises a voltage acquisition device, a current acquisition device, and a power acquisition device.

3. The new energy power station power quality detection device of claim 1, wherein the synchronization unit comprises a voltage dependent resistor and a voltage transformer, and the voltage dependent resistor is connected in parallel with two ends of the voltage transformer.

4. The new energy power station power quality detection device according to claim 3, wherein one end of the piezoresistor is connected with the other end of the piezoresistor through a fourth resistor and a second capacitor, and the other end of the piezoresistor is grounded; one end of the piezoresistor is connected with the negative electrode of the double-voltage comparator chip through a fourth resistor, and the positive electrode of the double-voltage comparator chip is grounded.

5. The new energy power station power quality detection device of claim 4, wherein the dual voltage comparator chip is a dual voltage comparator integrated circuit LM 393.

6. The new energy power station power quality detection device according to claim 1, wherein the noise reduction unit comprises a triode, a base of the triode is connected with an emitter of the triode through a first resistor, and the emitter of the triode is grounded; the collector of the triode is connected with a VCC end through a third resistor; and the collector of the triode is grounded through a third resistor and the first capacitor.

7. The device for detecting the power quality of the new energy power station as claimed in claim 6, wherein the base of the triode is connected with the main control unit through a second resistor; and the collector of the triode is connected with the output end of the synchronization unit.

8. The device for detecting the power quality of the new energy power station as claimed in claim 1, wherein the signal transmission unit comprises a data processing chip, a power amplification chip and an antenna switch chip, the radio-frequency signal transmitting end of the data processing chip is connected with the radio-frequency signal receiving end of the power amplification chip, the radio-frequency signal transmitting end of the antenna switch chip is connected with the radio-frequency signal receiving end of the data processing chip, and the antenna switch control end of the data processing chip is connected with the antenna switch signal end of the antenna switch chip.

9. The new energy power station power quality detection device of claim 8, wherein the data processing chip model adopts RDA 8908A; the model of the power amplification chip adopts RPM 6569; the antenna switch chip is of a RDASW61 model.

10. The new energy power station power quality detection device of claim 1, wherein a display screen is installed on the background terminal.