CN206775133U - A kind of New DSP utility power quality control and on-Line Monitor Device - Google Patents

A kind of New DSP utility power quality control and on-Line Monitor Device Download PDF

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Publication number
CN206775133U
CN206775133U CN201720632342.4U CN201720632342U CN206775133U CN 206775133 U CN206775133 U CN 206775133U CN 201720632342 U CN201720632342 U CN 201720632342U CN 206775133 U CN206775133 U CN 206775133U
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China
Prior art keywords
inverter
processing units
signal processing
dsp
dsp signal
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CN201720632342.4U
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Chinese (zh)
Inventor
李宏
王世平
杨津听
刘海田
周崇兴
冯群
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Kunming Electrical Apparatus Research Institute
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Kunming Electrical Apparatus Research Institute
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40Arrangements for reducing harmonics
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/7853
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52Outage or fault management, e.g. fault detection or location
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Abstract

A kind of New DSP utility power quality control and on-Line Monitor Device,Including sensor,Detect circuit,A/D converter,DSP signal processing units,Drive circuit,Serial connection controllable silicon,Inverter,Communication unit and by-pass switch,Inverter and by-pass switch are arranged in parallel between three phase mains and load connection line,Detect the output end of circuit access sensor,The output end of A/D converter detection circuit for access,DSP signal processing units access the output end of A/D converter,Drive circuit is connected with DSP signal processing units,Inverter is connected with serial connection controllable silicon,The built-in hysteresis comparator for adding pi regulator of DSP signal processing units,Inverter includes the inverter of three-phase independence,It is in series per phase inverter by two groups of inverters,Every group of inverter is by four Insulated Gate Bipolar thyristor groups into H type full-controlled bridge structures,Every group of inverter is parallel with electrical energy accumulator,Voltage compensation electric capacity is equipped with per phase inverter load-side.

Description

A kind of New DSP utility power quality control and on-Line Monitor Device
Technical field
It the utility model is related to a kind of New DSP utility power quality control and on-Line Monitor Device.
Background technology
The quality of power supply is the quality of electric energy in power system, and preferable electric energy should be the sine wave of ideal symmetrical.Some Factor can make waveform deviate symmetrical sine, thus just generate power quality problem.On the one hand we study influences in the presence of for which Factor can cause power quality problem, and on the one hand we study the problem of which aspect is these factors can cause, finally, Wo Menyao How research eliminates these factors, so as to make electric energy to the full extent close to sine wave.But due to a large amount of electricity in recent decades The use of power electronics load and nonlinear-load in power system so that power system power supply quality further deteriorates;It is worth The system as caused by power supply quality in recent years and the economic loss of user also getting worse are concerned with, at present in industrialization state Family, voltage dip have risen to most important power quality problem.Though currently used electric energy quality controller has certain The function of utility power quality control, but the effect handled is unsatisfactory, and damaging and being difficult with easily occur in inner member, together The data sheet one of Shi Chuantong electric energy quality controller monitoring, it is difficult to the quality of power supply of comprehensive utilization analysis transmission line of electricity.
Utility model content
The utility model devises a kind of New DSP utility power quality control and filled with on-line monitoring to solve the above problems Put, the device sets independent inverter per circuitry phase, and the inverter per circuitry phase has an inverter of two groups of series connection, at harmonic wave Manage better, inverter is connected with serial connection controllable silicon, prevents too high voltages from causing inverter circuit, can more effectively be protected inverse Become device, increase the service life of device;The communication unit of the device is connected to Surveillance center simultaneously and forms remote control network, The quality of power supply information of transmission line of electricity, comprehensive analysis and the control quality of power supply can be gathered comprehensively.
In order to realize above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is real by the following technical programs Existing:
A kind of New DSP utility power quality control and on-Line Monitor Device, including sensor, detection circuit, A/D converter, DSP signal processing units, drive circuit, serial connection controllable silicon, inverter, communication unit and by-pass switch, inverter are opened with bypass Pass is arranged in parallel between three phase mains and load connection line, and the sensor is connected with three phase mains interface and gathers three The voltage and current fundametal compoment of phase power supply, the output end of detection circuit access sensor, A/D converter detection circuit for access Output end, DSP signal processing units access the output end of A/D converter, and drive circuit is connected with DSP signal processing units, drive Dynamic circuit can receive the signal pulse of DSP signal processing units and export positive level and negative level control serial connection controllable silicon and inversion The turn-on and turn-off of device circuit, output end access load after inverter is connected with serial connection controllable silicon;
The built-in hysteresis comparator for adding pi regulator of the DSP signal processing units, the hysteresis comparator is using instantaneous It is worth manner of comparison, DSP signal processing units send PMW signals to drive by comparing the voltage and current signal of input with preset value Dynamic circuit controls the break-make of serial connection controllable silicon;
The inverter includes the inverter of three-phase independence, is in series per phase inverter by two groups of inverters, every group inverse Become device and be parallel with electrical energy accumulator into H type full-controlled bridge structures, every group of inverter by four Insulated Gate Bipolar thyristor groups, often Phase inverter load-side is equipped with voltage compensation electric capacity;
The communication unit is connected with DSP signal processing units, and communication unit includes RS485 communication modules, RF communication moulds Block and WIFI transport modules.
Further, described communication unit can transmit Monitoring Data to Surveillance center, New DSP utility power quality control Surveillance center, which can be connected to, with on-Line Monitor Device forms remote control network.
The beneficial effects of the utility model are:The device sets independent inverter per circuitry phase, the inversion per circuitry phase Device has the inverter of two groups of series connection, and harmonic management is better, and inverter is connected with serial connection controllable silicon, prevents too high voltages from making Damaged into inverter circuit, can more effectively protect inverter, increase the service life of device;The communication unit of the device is same When be connected to Surveillance center and form remote control network, can gather the quality of power supply information of transmission line of electricity comprehensively, comprehensive analysis with And the control quality of power supply.
Certainly, implement any product of the present utility model to it is not absolutely required to reach all the above advantage simultaneously.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, make required for being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the utility model, For those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings Other accompanying drawings.
Fig. 1 is a kind of New DSP utility power quality control and on-Line Monitor Device illustrative view of functional configuration;
Fig. 2 is a kind of New DSP utility power quality control and the electrical block diagram of on-Line Monitor Device.
In accompanying drawing, the list of parts representated by each label is as follows:
1- sensors, 2- detection circuits, 3-A/D converters, 4-DSP signal processing units, 5- drive circuits, 6- series connection can Control silicon, 7- inverters, 8- communication units, 81-RS485 communication modules, 82-RF communication modules, 83-WIFI transport modules, by 9- Way switch.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The all other embodiment obtained, belong to the scope of the utility model protection.
Refering to shown in Fig. 1-2, a kind of New DSP utility power quality control and on-Line Monitor Device, including sensor (1), inspection Slowdown monitoring circuit (2), A/D converter (3), DSP signal processing units (4), drive circuit (5), serial connection controllable silicon (6), inverter (7), communication unit (8) and by-pass switch (9), inverter (7) is arranged in parallel with by-pass switch (9) to be connected in three phase mains and load Between link, the sensor (1) is connected with three phase mains interface and gathers the voltage and current fundamental wave point of three phase mains Amount, the output end of detection circuit (2) access sensor (1), the output end of A/D converter (3) detection circuit for access (2), DSP letters The output end of number processing unit (4) access A/D converter (3), drive circuit (5) are connected with DSP signal processing units (4), drive Dynamic circuit (5) can receive the signal pulse of DSP signal processing units and export positive level and negative level control serial connection controllable silicon (6) With the turn-on and turn-off of inverter (7) circuit, output end access load after inverter (7) is connected with serial connection controllable silicon (6);
The built-in hysteresis comparator for adding pi regulator of the DSP signal processing units (4), the hysteresis comparator use wink Duration manner of comparison, DSP signal processing units send PMW signals extremely by comparing the voltage and current signal of input with preset value Drive circuit controls the break-make of serial connection controllable silicon;
The inverter (7) includes the inverter of three-phase independence, is in series per phase inverter by two groups of inverters, every group Inverter is parallel with electrical energy accumulator by four Insulated Gate Bipolar thyristor groups into H type full-controlled bridge structures, every group of inverter, Voltage compensation electric capacity is equipped with per phase inverter load-side;
The communication unit (8) is connected with DSP signal processing units (4), and communication unit (8) includes RS485 communication modules (81), RF communication modules (82) and WIFI transport modules (83).
Therein, described communication unit (8) can transmit Monitoring Data to Surveillance center, New DSP quality of power supply control System can be connected to Surveillance center with on-Line Monitor Device and form remote control network.
One of the present embodiment has particular application as:Sensor (1) is accessed at three phase mains and inverter (7) import wiring, Sensor (1) transmits the voltage of three phase mains and circuit signal to detection circuit (2) whether to detect the three-phase of three phase mains Balance, detection circuit (2) transmit the signal of detection into A/D converter (3), the three phase mains after digital and analogue signals are changed Voltage and current data signal is inputted to DSP signal processing units (4), and DSP signal processing units are by the signal of input with presetting Value is compared, and output pwm signal to drive circuit and drives serial connection controllable silicon (6) and inverter (7) to carry out break-make after comparing Operation, inverter make corresponding voltage and current compensating operation, and the electric energy after compensation is flowed into load;DSP signal transacting lists First (4) are also connected with communication unit (8), and communication unit (8) leads to the process signal of DSP signal processing units (4) by RS485 News module (81) or RF communication modules or WIFI transport modules (83) are transmitted to Surveillance center to analyze the quality of power supply;Inverter (7) inverter of three-phase independence, it is in series per phase inverter by two groups of inverters, every group of inverter is by four Insulated Gate Bipolars Thyristor groups are parallel with electrical energy accumulator into H type full-controlled bridge structures, every group of inverter, are equipped with per phase inverter load-side Voltage compensation electric capacity, voltage and current compensation can be carried out to the three phase mains of input, improve the quality of power supply of power supply, while per phase Two serial inverters (7) are set preferably to solve power quality problem, while inverter (7) and serial connection controllable silicon (6) Using series system, overtension can be avoided to cause inverter to damage and be difficult with.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means It is contained in reference to specific features, structure, material or the feature that the embodiment or example describe of the present utility model at least one In embodiment or example.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or Example.Moreover, specific features, structure, material or the feature of description can be in any one or more embodiments or example In combine in an appropriate manner.
The utility model preferred embodiment disclosed above is only intended to help and illustrates the utility model.Preferred embodiment is simultaneously There is no the details that detailed descriptionthe is all, it is only described embodiment also not limit the utility model.Obviously, according to this theory The content of bright book, it can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is in order to preferably Principle and practical application of the present utility model is explained, so that skilled artisan can be best understood by and utilize this Utility model.The utility model is only limited by claims and its four corner and equivalent.

Claims (2)

1. a kind of New DSP utility power quality control and on-Line Monitor Device, it is characterised in that:Including sensor (1), detection circuit (2), A/D converter (3), DSP signal processing units (4), drive circuit (5), serial connection controllable silicon (6), inverter (7), communication Unit (8) and by-pass switch (9), inverter (7) and by-pass switch (9) be arranged in parallel in three phase mains and load connection line it Between, the sensor (1) is connected with three phase mains interface and gathers the voltage and current fundametal compoment of three phase mains, detection electricity The output end of road (2) access sensor (1), the output end of A/D converter (3) detection circuit for access (2), DSP signal transacting lists The output end of first (4) access A/D converter (3), drive circuit (5) are connected with DSP signal processing units (4), drive circuit (5) The signal pulse of DSP signal processing units can be received and export positive level and negative level control serial connection controllable silicon (6) and inverter (7) turn-on and turn-off of circuit, output end access load after inverter (7) is connected with serial connection controllable silicon (6);
The built-in hysteresis comparator for adding pi regulator of the DSP signal processing units (4), the hysteresis comparator use instantaneous value Manner of comparison, DSP signal processing units send PMW signals to driving by comparing the voltage and current signal of input with preset value Circuit controls the break-make of serial connection controllable silicon;
The inverter (7) includes the inverter of three-phase independence, is in series per phase inverter by two groups of inverters, every group of inversion Device is parallel with electrical energy accumulator by four Insulated Gate Bipolar thyristor groups into H type full-controlled bridge structures, every group of inverter, per phase Inverter load-side is equipped with voltage compensation electric capacity;
The communication unit (8) is connected with DSP signal processing units (4), communication unit (8) include RS485 communication modules (81), RF communication modules (82) and WIFI transport modules (83).
2. a kind of New DSP utility power quality control according to claim 1 and on-Line Monitor Device, it is characterised in that:Described Monitoring Data can be transmitted to Surveillance center, New DSP utility power quality control and can connected with on-Line Monitor Device by communication unit (8) It is connected to Surveillance center and forms remote control network.
CN201720632342.4U 2017-06-02 2017-06-02 A kind of New DSP utility power quality control and on-Line Monitor Device Active CN206775133U (en)

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Application Number Priority Date Filing Date Title
CN201720632342.4U CN206775133U (en) 2017-06-02 2017-06-02 A kind of New DSP utility power quality control and on-Line Monitor Device

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Application Number Priority Date Filing Date Title
CN201720632342.4U CN206775133U (en) 2017-06-02 2017-06-02 A kind of New DSP utility power quality control and on-Line Monitor Device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110086199A (en) * 2019-05-05 2019-08-02 苏州阳野自动化系统有限公司 A method of optimization inverter system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110086199A (en) * 2019-05-05 2019-08-02 苏州阳野自动化系统有限公司 A method of optimization inverter system

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