CN112953015A

CN112953015A - Comprehensive electric energy quality optimization system of intelligent power distribution room

Info

Publication number: CN112953015A
Application number: CN202110310663.3A
Authority: CN
Inventors: 陆伟良; 朱荣贵; 周国春; 吴斌
Original assignee: Suzhou State Grid Tongfang Power Construction Engineering Co ltd
Current assignee: Suzhou State Grid Tongfang Power Construction Engineering Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-06-11

Abstract

The utility model relates to the technical field of power quality improvement equipment, in particular to an integrated power quality optimization system of an intelligent power distribution room, aiming at solving the defects of complicated steps and low implementation efficiency of a power quality optimization solution method caused by the manual detection of the circuit body condition and the power condition in a circuit when the circuit compensation element is arranged in the prior art, the technical proposal is that the integrated power quality optimization system of the intelligent power distribution room comprises a power quality treatment device for improving the power quality, a circuit detection module for accessing the circuit and detecting a power signal and a control module for controlling the power quality treatment device, the control module is arranged to receive the signal detected by the circuit detection module and control the working state of the power quality treatment device according to the received signal, the application has the advantages of improving the intelligent degree of the power quality optimization system, and further the effect of improving the implementation efficiency of the power quality optimization scheme.

Description

Comprehensive electric energy quality optimization system of intelligent power distribution room

Technical Field

The application relates to the technical field of electric energy quality improvement equipment, in particular to an intelligent power distribution room comprehensive electric energy quality optimization system.

Background

With the promotion of urbanization in China, the number of distribution rooms in urban distribution networks is increasing day by day, and the problem of power quality is remarkably solved in urban distribution networks and power supply networks with concentrated industrial loads.

The problem of power quality is long-standing, and in the early development stage of a power system, the power load is simple in composition and mainly comprises linear loads, so that indexes for measuring the power quality are simple, and mainly comprise frequency offset, voltage offset and the like; with the development of power electronics technology, nonlinear power electronics devices and devices are widely used in modern industries. Meanwhile, in order to solve the problems existing in the self development of the power system, direct current transmission and other technologies are continuously put into application, and speed regulating motors and other equipment are also put into operation in large quantity. These devices distort voltage and current waveforms more and more severely in the grid and the level of harmonics is rising. In addition, the power quality problems such as voltage fluctuation, flicker, three-phase imbalance, and the like are easily generated during the operation of the impact load.

At present, a commonly used power quality optimization method usually adopts a power compensation and harmonic suppression mode, and is generally designed according to parameters of a harmonic source and electrical characteristics of a mounting point, and is used for compensating and correcting voltage fluctuation and flicker in a power system.

In view of the above related technologies, the inventor thinks that there are defects that the setting of the circuit compensation element requires manual detection of the circuit body condition and the power condition in the circuit, which results in complicated steps and low implementation efficiency of the power quality optimization solution.

Disclosure of Invention

In order to improve the intelligent degree of the power quality optimization system and further improve the implementation efficiency of the power quality optimization scheme, the application provides the comprehensive power quality optimization system of the intelligent power distribution room.

The application provides a pair of intelligent power distribution room comprehensive electric energy quality optimizing system adopts following technical scheme:

the utility model provides an intelligent power distribution room synthesizes power quality optimization system, is used for improving power quality's power quality to administer the device, is used for inserting the circuit and detects the circuit detection module of power signal and is used for controlling the control module of power quality and administers the device including the power quality who is used for improving power quality, control module sets up to receive the signal that circuit detection module detected and obtains and according to the operating condition of received signal control power quality administers the device.

By adopting the technical scheme, the circuit detection module detects the integrated circuit in the power distribution room, the performance parameters of the circuit are acquired by detection, the collection and analysis of data of the circuit by workers according to detection results are facilitated, the implementation of a specific targeted quality optimization scheme on the circuit according to the detection data of the circuit is facilitated, the effectiveness of the quality optimization scheme of the circuit is improved conveniently, the control module receives the data obtained by the detection of the circuit detection module and then controls the electric energy quality management device to implement the quality optimization scheme according to the data obtained by the detection, the production and implementation of the intelligent and automatic optimization scheme are realized, and the implementation efficiency of the quality optimization scheme is improved.

Optionally, the power quality management device includes an equipment mounting plate, and the power quality management device further includes a power compensation unit for compensating for reactive power in the circuit, a voltage recovery unit for performing voltage stabilization filtering on voltage in the circuit, and a harmonic filtering unit for filtering harmonic current in the circuit.

Through adopting above-mentioned technical scheme, the equipment fixing board among the electric energy quality treatment device is fixed on the quick-witted case of joining in marriage the electrical room, the power compensation unit, voltage recovery unit and harmonic filtering unit pass through the equipment fixing board and are connected with the circuit equipment of quick-witted incasement portion, the power compensation unit has been improved, the stability of voltage recovery unit and harmonic filtering unit connection installation, the clean and tidy nature of the relevant equipment of circuit in joining in marriage the electrical room has been improved, furthermore, adopt the power compensation unit, voltage recovery unit and harmonic filtering unit support the quality optimization scheme of circuit simultaneously, the enforceability of quality optimization scheme has been enlarged.

Optionally, a plurality of jacks are formed in the equipment mounting plate, plugs are arranged on the power compensation unit, the voltage recovery unit and the harmonic filtering module, and the jacks and the plugs are arranged to be matched in a pluggable mode.

Through adopting above-mentioned technical scheme, the power compensation unit, in voltage recovery unit and the jack of harmonic filtering unit pass through the plug connection on the equipment fixing board, the power compensation unit has been improved, the convenience of voltage recovery unit and harmonic filtering unit installation, make can take out the circuit optimization unit who damages alone when certain circuit optimization unit damages and maintain or change, and avoided influencing other circuit optimization units in the circuit quality optimization scheme, the flexibility in the use of electric energy quality improvement device and maintenance has been improved, later stage cost of maintenance has been reduced.

Optionally, a clamping mechanism for enhancing the connection relationship between the plug and the jack is arranged between the plug and the jack.

Through adopting above-mentioned technical scheme, set up chucking mechanism between plug and jack, strengthened the joint strength between plug and the jack, improved the stability of being connected between plug and the jack, and then guaranteed the security that the electric energy quality optimization scheme was implemented.

Optionally, the clamping mechanism includes an elastic buckle arranged on the plug, the clamping mechanism further includes a clamping groove arranged in the jack and used for being matched with the elastic buckle in a clamping manner, one end of the elastic buckle close to the jack is provided with a protruding clamping block, and a groove used for being matched with the clamping block is formed in the inner wall of the clamping groove.

Through adopting above-mentioned technical scheme, the cooperation between the last elastic buckle of chucking mechanism and the draw-in groove has increased the frictional force of plug and jack junction, has strengthened the joint strength between plug and the jack, and the fixture block on the elastic buckle goes into in the recess after the plug inserts the jack completely simultaneously for the plug can be fixed in the jack and obtain fixedly when outwards pulling out, provides further protection for the connection of plug and jack.

Optionally, the plug and the jack are further provided with a protection mechanism for protecting the plug and the jack.

By adopting the technical scheme, the protection mechanism protects the plug and the jack when the plug and the jack are connected, separates dust, moisture and other pollutants in the air, is favorable for improving the cleanliness of the plug and the jack, ensures the electrical property when the plug and the jack are connected, and finally improves the implementation effect of the electric energy quality management device on the implementation of the electric energy quality optimization scheme.

Optionally, the circuit detection module includes a frequency detection unit for detecting a current frequency, a voltage detection unit for detecting a voltage, a three-phase detection unit for detecting a three-phase output of the circuit, and a harmonic detection unit for detecting a current harmonic.

By adopting the technical scheme, the frequency detection unit detects the frequency of the current flowing in the circuit, so that the reduction of the utilization efficiency of the electric energy power possibly caused by the frequency deviation of the current is convenient to detect; the three-phase detection unit detects three output ends in the circuit, so that the condition of poor electric energy quality caused by three-phase unbalance of the circuit can be detected conveniently; the harmonic detection unit extracts and detects current harmonics in the circuit, so that the problem of poor electric energy quality caused by harmonic distortion of the circuit is conveniently detected, the comprehensiveness of circuit detection is improved, detection and optimization of various parameters of the electric energy quality are facilitated, and the completeness of an electric energy quality optimization scheme is finally guaranteed.

Optionally, the control module includes a storage unit for storing data, a processing unit for analyzing and processing the received signal, and a control unit for controlling the power quality management device.

By adopting the technical scheme, the storage unit collects and stores data, the statistical analysis of the operation state of the circuit by workers is facilitated according to the collected and stored data, the rule summarization and the further optimization of the power quality optimization scheme matched with the circuit are facilitated, the processing unit processes and analyzes the detected relevant parameters in the circuit, the problem type of the circuit signal is facilitated to be analyzed, different power quality optimization schemes can be generated according to the fault type of the circuit signal, the implementation efficiency of the power quality optimization scheme is finally improved, the control unit controls the power quality control device, the power quality control device can be controlled intelligently to implement the power quality optimization scheme, and the automation degree of equipment is improved.

Optionally, the storage unit includes a local storage subunit arranged inside the device and used for locally storing the data, and an online storage subunit used for virtually storing the data.

By adopting the technical scheme, the data are stored in the local storage subunit and the online storage subunit simultaneously, so that when the local storage subunit fails, the required data can be inquired and extracted from the online storage subunit, and the safety of data storage is improved.

Optionally, the control module and the circuit detection module are both communicated with an emergency power supply for performing emergency power supply on the control module and the circuit detection module.

By adopting the technical scheme, the emergency power supply supplies power for the control module and the circuit detection module in an emergency manner, so that when the power supply circuit of the control module and the circuit detection module breaks down, the emergency power supply supplies power for the control module and the circuit detection module, the running safety of the control module and the circuit detection module is improved, and the working continuity of the control module and the circuit detection module is kept conveniently.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the circuit detection module detects the integrated circuit in the power distribution room, performance parameters of the circuit are obtained through detection, a worker can collect and analyze data of the circuit according to a detection result, a specific targeted quality optimization scheme can be implemented on the circuit according to the detection data of the circuit, the effectiveness of the quality optimization scheme of the circuit can be improved, the control module receives the data obtained through detection of the circuit detection module and then controls the electric energy quality control device to implement the quality optimization scheme according to the data obtained through detection, the production and implementation of the intelligent automatic optimization scheme are achieved, and the implementation efficiency of the quality optimization scheme is improved;

2. the storage unit collects and stores data, which is helpful for a worker to perform statistical analysis on the running state of the circuit according to the collected and stored data, and is convenient for regular summarization and further optimization of the power quality optimization scheme matched with the circuit;

3. the emergency power supply supplies power for the control module and the circuit detection module in an emergency mode, so that when the power supply circuit of the control module and the circuit detection module breaks down, the emergency power supply supplies power for the control module and the circuit detection module, the running safety of the control module and the circuit detection module is improved, and the working continuity of the control module and the circuit detection module is kept conveniently.

Drawings

Fig. 1 is a schematic overall structure diagram of an intelligent power distribution room integrated power quality optimization system shown in an embodiment of the present application;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a cross-sectional view of a plug and a jack of an integrated power quality optimization system of an intelligent power distribution room shown in an embodiment of the present application;

fig. 4 is a system block diagram of an intelligent power distribution room integrated power quality optimization system shown in an embodiment of the present application.

Description of reference numerals: 1. a power quality management device; 11. a power compensation unit; 12. a voltage recovery unit; 13. a harmonic filtering unit; 2. a circuit detection module; 21. a frequency detection unit; 22. a voltage detection unit; 23. a three-phase detection unit; 24. a harmonic detection unit; 3. a control module; 31. a storage unit; 311. a local storage subunit; 312. an online storage subunit; 32. a processing unit; 33. a control unit; 4. an equipment mounting plate; 5. a plug; 6. a jack; 7. a chucking mechanism; 71. elastic buckle; 711. a clamping block; 72. a card slot; 73. a groove; 8. a protection mechanism; 9. an emergency power supply.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Example (b):

the embodiment of the application discloses comprehensive electric energy quality optimization system of intelligent power distribution room.

Referring to fig. 1, an intelligent power distribution room comprehensive power quality optimization system includes a power quality improvement device 1 for repairing and improving power quality problems, the power quality improvement device 1 includes an equipment mounting plate 4 installed on a side wall of a power distribution cabinet, a plurality of jacks 6 communicated with a circuit in the power distribution cabinet are arranged on the equipment mounting plate 4, the power quality improvement device 1 further includes a plug 5 for being connected with improvement equipment in the power quality improvement device 1 and assisting the above improvement equipment to be connected into a circuit to be improved, and the plug 5 and the jacks 6 are matched in a plugging manner.

Referring to fig. 2 and 3, the plug 5 is provided with the protection mechanism 8, the protection mechanism 8 is sleeved outside the plug 5 and is tubular, the jack 6 and the protection mechanism 8 on the plug 5 are matched with each other, when the plug 5 is inserted into the jack 6, the protection mechanism extends into the jack 6, the isolation between the plug 5 and the external environment is improved, the possibility that dust moisture in the air enters the jack 6 to cause the problem of the connection performance of the plug 5 is reduced, and the connection quality between the plug 5 and the jack 6 is improved. Be equipped with the chucking mechanism 7 that is used for strengthening the joint strength between plug 5 and the jack 6, chucking mechanism 7 is including setting up the elasticity buckle 71 on plug 5, elasticity buckle 71 is fixed on the protection machanism 8 outside plug 5, be equipped with fixture block 711 on the one end lateral wall that is close to jack 6 on the elasticity buckle 71, chucking mechanism 7 is still including seting up the draw-in groove 72 in jack 6, draw-in groove 72 is seted up in jack 6 and is gone up the position department that elasticity buckle 71 corresponds with plug 5, upwards sunken recess 73 has been seted up to draw-in groove 72 bottom, recess 73 is used for holding fixture block 711 on the elasticity buckle 71. The connection strength between the plug 5 and the jack 6 is improved, and meanwhile, when the plug 5 is subjected to the pulling-out force, the connection is maintained by the fixture block 711 on the elastic buckle 71 and the groove 73 in the fixture groove 72, which is helpful for realizing the anti-falling effect of the plug 5.

Referring to fig. 4, the power quality optimization system further includes a circuit detection module 2 for extracting characteristics of the circuit, the circuit detection module 2 includes a frequency detection unit 21 for detecting a current frequency, a voltage detection unit 22 for detecting a voltage of the circuit, a three-phase detection unit 23 for detecting a three-phase output of the circuit, and a harmonic detection unit 24 for extracting and detecting a current harmonic in the circuit, the voltage detection unit 22 is configured as a voltage sensor, the harmonic detection unit 24 is configured as a harmonic detector, the three-phase detection unit 23 is configured as three current detection sensors disposed on three-phase output ends of the circuit, and the frequency detection unit 21 is configured as a frequency characteristic detector. Still be equipped with the control module 3 that is used for controlling power quality to administer device 1 in the power quality optimization system, control module 3 is including the storage cell 31 that is used for storing data, storage cell 31 is including being used for carrying out the local storage subunit 311 of instant memory to data, local storage subunit 311 sets up to the read-only memory that has the large capacity, storage cell 31 is still including the online storage subunit 312 that is used for carrying out the storage to data online, online storage subunit 312 sets up to upload and the cloud storage of storage data according to preset time interval. The control module 3 further comprises a processing unit 32 and a control unit 33, the processing unit 32 is configured as a data processor for analyzing the circuit parameter data and identifying the circuit problem, and a time domain analysis algorithm for analyzing the signal, such as a symmetric component analysis method and a harmonic analysis method, is arranged in the data processor; wavelet transform and short-time Fourier transform algorithms for analyzing transient signal mutation; a time-varying harmonic detection method based on wavelet transform for detecting and extracting harmonic waves. The control unit 33 is configured such that the intelligent control circuit includes an automatic control portion and a manual control portion. The electric energy quality treatment device 1 is connected with the control module 3, the control module 3 is simultaneously connected with the circuit detection module 2, and the control module 3 is set to receive detection data sent by the circuit detection module 2 and controls the work of the electric energy quality treatment device 1 according to analysis and comparison of the detection data. Specifically, after the circuit detection module 2 detects various data of the circuit, the detected data is sent to the processing unit 32 of the control module 3, a data processor in the processing unit 32 analyzes the detected data through an intelligent algorithm, extracts features in the detected data and judges the quality disturbance problem in the circuit according to the detected features, after the quality disturbance problem is judged, a judgment signal is sent to the control unit 33 and the storage unit 31, the control unit 33 controls the electric energy quality control device 1 to solve corresponding problems, and the storage unit 31 stores the detected data and related data of the quality disturbance problem.

Referring to fig. 4, the control module 3 and the circuit detection module 2 are both connected to an emergency power supply 9, and the emergency power supply 9 is an uninterruptible emergency power supply 9, which is beneficial to maintaining the work of the power quality optimization system when a power supply system fault occurs.

The implementation principle of the comprehensive power quality optimization system of the intelligent power distribution room in the embodiment of the application is as follows: when the electric energy quality optimization system is needed to optimize the electric energy in the circuit, the electric energy quality control device 1 is inserted into the equipment mounting plate 4 through the connection relationship between the plug 5 and the jack 6 to be connected into the circuit, the circuit detection module 2 detects and extracts parameters in the circuit, the control module 3 analyzes and stores the detected data, and then controls the electric energy quality control device 1 to implement the electric energy quality optimization scheme to optimize the circuit. When the power quality treatment device 1 breaks down, the elastic buckle 71 on the unit plug 5 with the fault is pressed down, the unit with the fault is taken out, a new unit with normal function is inserted, and independent disassembly and assembly are realized, so that the work of other treatment units is not influenced during disassembly and assembly.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an intelligent power distribution room synthesizes electric energy quality optimizing system which characterized in that: the device comprises an electric energy quality treatment device (1) for improving the electric energy quality, a circuit detection module (2) for accessing a circuit and detecting an electric energy signal and a control module (3) for controlling the electric energy quality treatment device (1), wherein the control module (3) is used for receiving the signal detected by the circuit detection module (2) and controlling the working state of the electric energy quality treatment device (1) according to the received signal.

2. The comprehensive power quality optimization system of the intelligent power distribution room according to claim 1, characterized in that: the electric energy quality treatment device (1) comprises an equipment mounting plate (4), and the electric energy quality treatment device (1) further comprises a power compensation unit (11) for compensating reactive power in a circuit, a voltage recovery unit (12) for performing voltage stabilization filtering on voltage in the circuit and a harmonic filtering unit (13) for filtering harmonic current in the circuit.

3. The comprehensive power quality optimization system of the intelligent power distribution room according to claim 2, characterized in that: a plurality of jacks (6) are formed in the equipment mounting plate (4), plugs (5) are arranged on the power compensation unit (11), the voltage recovery unit (12) and the harmonic filtering module, and the jacks (6) and the plugs (5) are arranged to be matched in a pluggable mode.

4. The comprehensive power quality optimization system of the intelligent power distribution room according to claim 3, characterized in that: and a clamping mechanism (7) for enhancing the connection relationship between the plug (5) and the jack (6) is arranged between the plug and the jack.

5. The comprehensive power quality optimization system of the intelligent power distribution room according to claim 4, characterized in that: chucking mechanism (7) are including locating elasticity buckle (71) on plug (5), chucking mechanism (7) still including offer in jack (6) be used for with elasticity buckle (71) chucking complex draw-in groove (72), elasticity buckle (71) are gone up to be close to one of jack (6) and are served and be equipped with outstanding fixture block (711), offer on draw-in groove (72) inner wall and be used for with fixture block (711) complex recess (73).

6. The comprehensive power quality optimization system of the intelligent power distribution room according to claim 3, characterized in that: and the plug (5) and the jack (6) are also provided with a protection mechanism (8) for protecting the plug (5) and the jack (6).

7. The comprehensive power quality optimization system of the intelligent power distribution room according to claim 1, characterized in that: the circuit detection module (2) comprises a frequency detection unit (21) for detecting current frequency, a voltage detection unit (22) for detecting voltage, a three-phase detection unit (23) for detecting three-phase output of a circuit, and a harmonic detection unit (24) for detecting current harmonics.

8. The comprehensive power quality optimization system of the intelligent power distribution room according to claim 1, characterized in that: the control module (3) comprises a storage unit (31) for storing data, a processing unit (32) for analyzing and processing the received signals and a control unit (33) for controlling the power quality management device (1).

9. The comprehensive power quality optimization system of the intelligent power distribution room according to claim 8, characterized in that: the storage unit (31) comprises a local storage subunit (311) arranged inside the device and used for locally storing data and an online storage subunit (312) used for virtually storing data.

10. The comprehensive power quality optimization system of the intelligent power distribution room according to claim 1, characterized in that: and the control module (3) and the circuit detection module (2) are communicated with an emergency power supply (9) for performing emergency power supply on the control module (3) and the circuit detection module (2).