CN208923833U - Distributed generation resource reactive compensation control system - Google Patents
Distributed generation resource reactive compensation control system Download PDFInfo
- Publication number
- CN208923833U CN208923833U CN201820944576.7U CN201820944576U CN208923833U CN 208923833 U CN208923833 U CN 208923833U CN 201820944576 U CN201820944576 U CN 201820944576U CN 208923833 U CN208923833 U CN 208923833U
- Authority
- CN
- China
- Prior art keywords
- reactive
- control device
- generation resource
- controller
- distributed generation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model discloses a kind of distributed generation resource reactive compensation control systems, including gird-connected inverter, reactive-load compensation equipment, reactive-load compensation equipment control device, distributed electrical source control device and controller, gird-connected inverter is connected with distributed electrical source control device, for realizing the unsteady flow and power regulation of distributed generation resource access power grid, gird-connected inverter is using double PWM converters；Reactive-load compensation equipment is connected with reactive-load compensation equipment control device, for adjusting reactive power；Controller is connected by communication bus with distributed electrical source control device and reactive-load compensation equipment control device, for issuing control instruction；Controller is connected with main website server, is uploaded to main website server for receiving the control instruction of main website server, and by data；It realizes the stability contorting of distributed generation resource access, solves the technical problem for causing reactive power unstable when system fluctuation.
Description
Technical field
The utility model belongs to distributed generation technology field, and in particular to a kind of distributed generation resource the control of reactive power compensating system
System.
Background technique
For the development for promoting clean energy resource and new energy, distributed generation resource is grid-connected to become current research hotspot, technical ability
Meet electricity consumption flexibility and is able to satisfy economic benefit again.
However, with the access of distributed generation resource, after distributed generation resource reaches certain capacity, can voltage to route,
Power quality etc. produces serious influence, and protects system also increasingly complex, directly affects economic benefit, or even jeopardize power grid
Safe operation.Being monitored to distributed generation resource can guarantee that network system is in for a long time in safe and reliable operation shape
State, currently, cannot achieve economic benefit most for the adjusting of reactive power due to ununified distributed generation resource cut-in method
Bigization, while it being also unable to satisfy real-time quick adjusting, this causes adverse effect for the sustainable development of distributed generation resource.
Utility model content
To solve the above problems, realizing distribution the utility model proposes a kind of distributed generation resource reactive compensation control system
The stability contorting of formula plant-grid connection solves the technical problem for causing reactive power unstable when system fluctuation.
The utility model adopts the following technical solution, distributed generation resource reactive compensation control system, comprising: parallel network reverse
Device, reactive-load compensation equipment, reactive-load compensation equipment control device, distributed electrical source control device and controller, wherein
Gird-connected inverter is connected with distributed electrical source control device, for realizing distributed generation resource access power grid unsteady flow and
Power regulation, gird-connected inverter is using double PWM converters；
Reactive-load compensation equipment is connected with reactive-load compensation equipment control device, for adjusting reactive power；
Controller is connected by communication bus with distributed electrical source control device and reactive-load compensation equipment control device, is used for
Issue control instruction；Controller is connected with main website server, for receiving the control instruction of main website server, and will be in data
Reach main website server.
Preferably, the distributed electrical source control device is dsp controller, and dsp controller refers to according to the control received
Enable the pwm pulse signal for modulating double PWM converters.
Preferably, the controller includes data acquisition module, data processing module and communication module, data acquisition module
Voltage and current for capacitor both ends in the voltage and current of acquisition system and double PWM converters；Data processing module root
According to the data computing system reactive power of acquisition, judges the reactive-load compensation equipment and gird-connected inverter for needing to adjust, will control
Instruction is issued to corresponding control device；Communication module is used to for control instruction to be issued to corresponding control device, receives main website
The control instruction of server, and data are uploaded to main website server.
Preferably, the controller is controlled by RS485 communication with distributed electrical source control device and reactive-load compensation equipment
Device is connected.
Preferably, the data acquisition module includes voltage transformer, current transformer, signal follower, mutual induction of voltage
Device is connected with signal follower with current transformer.
Preferably, the controller further includes protective module, and protective module internal memory, comparator and timer are deposited
Reservoir is connected with communication module, the setting reactive power range that storage main website server issues, comparator and data processing module
It is connected, judges whether system reactive power power is in setting range, comparator output is connected with timer, and timer is used for
Record system is in the abnormal condition time, is then adjusted by data processing module more than setting time.
Utility model is achieved the utility model has the advantages that the utility model is a kind of distributed generation resource reactive compensation control system,
It realizes the stability contorting of distributed generation resource access, solves the technical problem for causing reactive power unstable when system fluctuation；This reality
With the novel connection by controller and main website server, the throwing of distributed generation resource can be realized according to the instruction of main website server
Enter, shut down, the reactive compensation of power regulation and reactive power compensator；Protective module is set in controller, is taken in no main website
When the control instruction of business device, especially after system jam, cooperates with other modules of controller, guarantee at reactive compensation power
In in normal range (NR)；Double PWM converters are introduced, cooperates with reactive-load compensation equipment, realizes the efficient utilization of distributed generation resource, are improved
The stability of distributed generation resource access.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Below according to attached drawing and the technical solution of the utility model is further elaborated in conjunction with the embodiments.
As shown in Figure 1, distributed generation resource reactive compensation control system, comprising: gird-connected inverter, reactive-load compensation equipment, nothing
Function compensates plant control unit, distributed electrical source control device and controller, wherein
Gird-connected inverter is connected with distributed electrical source control device, for realizing distributed generation resource access power grid unsteady flow and
Power regulation, gird-connected inverter is using double PWM converters；The distributed electrical source control device is dsp controller, DSP control
Device modulates the pwm pulse signal of double PWM converters according to the control instruction received；
Reactive-load compensation equipment is connected with reactive-load compensation equipment control device, for adjusting reactive power；
Controller is connected by communication bus with distributed electrical source control device and reactive-load compensation equipment control device, is used for
Issue control instruction；Controller is connected with main website server, for receiving the control instruction of main website server, and will be in data
Reach main website server；The controller includes data acquisition module, data processing module and communication module, data acquisition module
The voltage and current and double PWM of points of common connection (PCC, Point of Common Coupling) point for acquisition system
The voltage and current at capacitor both ends in current transformer；Data processing module computing system reactive power according to the collected data, judgement
Control instruction is issued to corresponding control device by the reactive-load compensation equipment and gird-connected inverter for needing to adjust；Communication module
For control instruction to be issued to corresponding control device, the control instruction of main website server is received, and data are uploaded to
Main website server；Controller is communicated by RS485 to be connected with distributed electrical source control device and reactive-load compensation equipment control device；
The data acquisition module includes voltage transformer, current transformer, signal follower, and voltage transformer is equal with current transformer
It is connected with signal follower；The controller further includes protective module, protective module internal memory, comparator and timer,
Memory is connected with communication module, the setting reactive power range that storage main website server issues, comparator and data processing mould
Block is connected, and judges whether system reactive power power is in setting range, and comparator output is connected with timer, and timer is used
It is in the abnormal condition time in record system, is then adjusted by data processing module more than setting time.
The utility model controller course of work is divided into two parts:
One: main website server issues control instruction, and controller parses the control instruction received, obtains reactive power setting
Value, the real-time collection voltages current data of data acquisition module, by data processing module computing system reactive power, if reactive power
Regulated quantity is less than the active volume of distributed generation resource, then distributed generation resource and every distribution needed for being calculated by optimization algorithm
The reactive power value of power supply, and calculated result is issued to corresponding distributed power controller, i.e., in dsp controller, DSP control
Device processed adjusts the 6 road pwm control signals for obtaining double PWM converters based on PI, controls the idle function of distributed generation resource input coefficient
Rate；If reactive power regulated quantity is greater than the active volume of distributed generation resource, residual accommodation amount is distributed to reactive-load compensation equipment, and
Calculated result is issued to corresponding distributed power controller and reactive-load compensation equipment controller；
Two: main website server does not issue control instruction, and the reactive power of setting is stored in the protective module of controller
Range, the comparator of protective module compare setting range and system reactive power power, the triggering timing if beyond setting range
Device is more than setting time, is then adjusted by data processing module, adjustment process is the same as process one.
Claims (6)
1. distributed generation resource reactive compensation control system characterized by comprising gird-connected inverter, reactive-load compensation equipment, idle
Compensate plant control unit, distributed electrical source control device and controller, wherein
Gird-connected inverter is connected with distributed electrical source control device, for realizing the unsteady flow and power of distributed generation resource access power grid
It adjusts, gird-connected inverter is using double PWM converters；
Reactive-load compensation equipment is connected with reactive-load compensation equipment control device, for adjusting reactive power；
Controller is connected by communication bus with distributed electrical source control device and reactive-load compensation equipment control device, for issuing
Control instruction；Controller is connected with main website server, is uploaded to for receiving the control instruction of main website server, and by data
Main website server.
2. distributed generation resource reactive compensation control system according to claim 1, which is characterized in that the distributed generation resource
Control device is dsp controller, and dsp controller is believed according to the pwm pulse that the control instruction received modulates double PWM converters
Number.
3. distributed generation resource reactive compensation control system according to claim 1, which is characterized in that the controller includes
Data acquisition module, data processing module and communication module, data acquisition module for acquisition system voltage and current and
The voltage and current at capacitor both ends in double PWM converters；Data processing module computing system reactive power according to the collected data,
Judgement needs the reactive-load compensation equipment and gird-connected inverter adjusted, and control instruction is issued to corresponding control device；Communication
Module is used to control instruction being issued to corresponding control device, receives the control instruction of main website server, and will be in data
Reach main website server.
4. distributed generation resource reactive compensation control system according to claim 1 or 3, which is characterized in that the controller
It is communicated by RS485 and is connected with distributed electrical source control device and reactive-load compensation equipment control device.
5. distributed generation resource reactive compensation control system according to claim 3, which is characterized in that the data acquisition module
Block includes voltage transformer, current transformer, signal follower, voltage transformer and current transformer with signal follower phase
Even.
6. distributed generation resource reactive compensation control system according to claim 3, which is characterized in that the controller also wraps
Protective module, protective module internal memory, comparator and timer are included, memory is connected with communication module, storage main website clothes
The setting reactive power range that business device issues, comparator are connected with data processing module, whether judge system reactive power power
In setting range, comparator output is connected with timer, and timer is in the abnormal condition time for recording system, surpasses
Setting time is crossed then to be adjusted by data processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820944576.7U CN208923833U (en) | 2018-06-15 | 2018-06-15 | Distributed generation resource reactive compensation control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820944576.7U CN208923833U (en) | 2018-06-15 | 2018-06-15 | Distributed generation resource reactive compensation control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208923833U true CN208923833U (en) | 2019-05-31 |
Family
ID=66693361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820944576.7U Active CN208923833U (en) | 2018-06-15 | 2018-06-15 | Distributed generation resource reactive compensation control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208923833U (en) |
-
2018
- 2018-06-15 CN CN201820944576.7U patent/CN208923833U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102005765B (en) | Grid-connected operation reactive power controlling and regulating method suitable for large wind farm | |
| CN109390927A (en) | It is a kind of based on SOC without interconnected communication distributed energy storage droop control method | |
| CN105356505A (en) | Multi-source distributed power generation system suitable for micro electrical network and control method | |
| CN102709925A (en) | Reactive power automatic regulating system on basis of wind power station SCADA (Supervisory Control And Data Acquisition) system | |
| WO2014099274A1 (en) | Voltage regulation system and method | |
| CN104333026A (en) | Power feed-forward compensation based isolated operation direct current micro grid energy storage voltage stabilizing control method | |
| CN104852407A (en) | Bidirectional droop control method for IC (Interlinking Converter) in AC-DC (Alternating Current-Direct Current) mixed microgrid | |
| US11201471B2 (en) | Method of operating an energy system | |
| CN105470978B (en) | A kind of static passive compensation device control method for coordinating in groups | |
| CN107465198B (en) | A kind of wind power field automatic voltage control and system | |
| CN103117644A (en) | Parallel control system and parallel control method for inverters | |
| CN108599201A (en) | A kind of large capacity off-network type micro-capacitance sensor mixing frequency modulation method | |
| CN209730824U (en) | A kind of energy storage monitoring device of the zinc-iron flow battery applied to photovoltaic power generation field | |
| CN115189386A (en) | Virtual energy storage control method based on Internet of things and edge calculation | |
| CN110061515A (en) | A kind of energy storage monitoring device of the zinc-iron flow battery applied to photovoltaic power generation field | |
| CN104852388B (en) | A kind of chain type SVG device with active power filtering function | |
| CN109638864A (en) | A kind of control system of smart grid | |
| CN208923833U (en) | Distributed generation resource reactive compensation control system | |
| CN204089197U (en) | The system that wind power plant reactive voltage controls | |
| CN208423809U (en) | A kind of composite energy storage type bi-directional power conversion device | |
| CN103532132A (en) | Control method of self-adaptive mobile microgrid energy interaction system | |
| CN107910870B (en) | Switching control method and device for distributed static series compensator | |
| CN107069754B (en) | A kind of continuously adjustable reactive source AVC control instruction selection method and system | |
| CN106026102B (en) | Double-circuit line unified power flow controller and section power flow control method | |
| CN204334379U (en) | The V/f-with hysteretic characteristic falls down vertical microgrid inverter power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |