CN206162121U - Little load of power grid controller - Google Patents
Little load of power grid controller Download PDFInfo
- Publication number
- CN206162121U CN206162121U CN201621082497.7U CN201621082497U CN206162121U CN 206162121 U CN206162121 U CN 206162121U CN 201621082497 U CN201621082497 U CN 201621082497U CN 206162121 U CN206162121 U CN 206162121U
- Authority
- CN
- China
- Prior art keywords
- module
- load
- micro
- dsp module
- dsp
- 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
Abstract
The utility model discloses a little load of power grid controller, including the DSP module for keep watch on little power grid operation state and carry out corresponding load control logic according to running state, the distant place collection module who is connected with the DSP module, the AC collection module who is connected with the DSP module, open the module with the DSP module is connected, the drive plate of being connected with the DSP module, the HMI module of being connected with the DSP module, the distant place communication module who is connected with the DSP module, and with the DSP module is connected is used for the power module of power supply. The utility model discloses can gather little load of power grid's operating information in real time to to the characteristic of little electric wire netting " plug -and -play " and the controlled attribute of each load, intelligent judgment goes out the load excision scheme of optimization, has realized the control that becomes more meticulous of the load under little electric wire netting isolated island operation mode, has eliminated the protection of conventional low frequency adjust difficulty, shortcoming that the control error is big, and a whole set of scheme has higher superiority.
Description
Technical field
This utility model belongs to field of micro-grid operational control, and in particular to a kind of micro-grid load controller.
Background technology
Micro-capacitance sensor (Micro-Grid), refer to by distributed power source, energy storage device, energy conversion device, load, monitoring and
The small-sized electric system of the compositions such as protection device.Micro-capacitance sensor is one and can realize self-contr ol, protection and the autonomy for managing
System, can run on grid-connected and island state.Compared to conventional electrical distribution net, micro-capacitance sensor have internal distributed power-supply fluctuation compared with
Greatly, system loading operation characteristic differentiation is prominent, rotary inertia is little, " plug and play " the features such as.When micro-capacitance sensor islet operation,
It is possible that distributed power source output power now needs to cut off secondary in appropriate amount in time less than the situation of load absorption power
Load, it is ensured that the stable operation of micro-capacitance sensor.
At present, for the spatial load forecasting of micro-capacitance sensor mainly adopts UFLS pattern.The pattern is based on normal grid model,
Concrete measure is：According to load important degree, the operating frequency definite value and time definite value of many rounds are set, it is secondary negative by cutting off
Lotus, it is ensured that the normal operation of sensitive load.Above-mentioned measure has that control principle is simple, the clear and definite advantage of action logic, but also deposits
In following deficiency：
1st, fixed value adjusting is difficult.During island state, the operating condition such as power supply, energy storage, load inside micro-capacitance sensor, it is totally different in
Operating condition when normal grid is active not enough；Meanwhile, micro-capacitance sensor equivalent moment of inertia is less, cuts off in micro-capacitance sensor internal load
Afterwards, its frequency retrieval curve is also different from normal grid.This to the frequency definite value of each round, time definite value adjust bring it is tired
It is difficult.
2nd, control model is extensive.The premise of conventional UFLS is：When failure occurs, the power of system, load
Power is certain；And micro-capacitance sensor output characteristic of power source, load running characteristic, energy storage charge-discharge characteristic can occur larger change
Change, simply set up a frequency action threshold and can bring larger control error, it may occur that load is crossed and cut, be unfavorable for be
The stable of system, economical operation.
3rd, operation maintenance workload is big.Due to " plug and play " feature of micro-capacitance sensor, the throwing of load and power supply move back with compared with
Big randomness, according to existing control model, need to arrange many set control definite values and according to operating condition carry out manually or from
Dynamic switching, this can bring larger workload to the working service of user.
Utility model content
The purpose of this utility model be to provide it is a kind of being capable of precise ablation load, the micro-grid load control being user-friendly to
Device processed.
Divide from hardware module, above-mentioned micro-grid load controller includes:
DSP module, for monitoring micro-capacitance sensor running status and performing corresponding load control logic；
The distant place acquisition module being connected with DSP module, for the operation information at the controlled interval in a Real-time Collection distant place；
What is be connected with DSP module is opened into module, for the input of 22 way switch amounts；
The driving plate being connected with DSP module, for connecting the trip(ping) circuit of corresponding load；
The HMI module being connected with DSP module, the display of input and operation information for definite value；
The distant place communication module being connected with DSP module, for carrying out information exchange with main website, by micro-capacitance sensor operation information
Main website is delivered to, while receiving control of the main website to being spaced in micro-capacitance sensor；
And the power module for power supply being connected with DSP module.
In some embodiments, also including AC acquisition modules, AC acquisition modules are connected with DSP module.
In some embodiments, distant place acquisition module is provided with multi-channel optical fibre interface.
In some embodiments, distant place acquisition module is provided with 8 road optical fiber interfaces.
In some embodiments, distant place acquisition module is connected with harvester by optical fiber.
Its advantage is：This utility model can with Real-time Collection micro-capacitance sensor interior power, load, energy storage operational factor,
And the characteristic of micro-capacitance sensor " plug and play " and the controlled attribute of each load are directed to, intelligent decision goes out optimized load excision side
Case, realizes to the load Precise control under micro-capacitance sensor islet operation pattern, eliminate conventional underfrequency protection adjust difficulty, control
The big shortcoming of error processed, package have higher superiority.
Description of the drawings
Fig. 1 is the structural representation of the micro-grid load controller of one embodiment of this utility model；
Fig. 2 is the structural representation of the micro-capacitance sensor of one embodiment of this utility model.
Specific embodiment
As shown in figure 1, this utility model is a kind of micro-grid load controller, including DSP module 1, for monitoring micro- electricity
Running State simultaneously performs corresponding load control logic；The distant place acquisition module 2 being connected with DSP module 1, for Real-time Collection
The operation information (the such as output of distributed power source, load power, energy storage parameter etc.) at the controlled interval in a distant place；With DSP module 1
The AC acquisition modules 3 of connection, for accessing the three-phase current of 4 road loads；What is be connected with DSP module 1 is opened into module 4, for 22
The input of way switch amount；The driving plate 5 being connected with DSP module 1, for connecting the trip(ping) circuit of corresponding load；With DSP module 1
The HMI module 6 of connection, the display of input and operation information for definite value；The distant place communication module 7 being connected with DSP module 1,
For information exchange being carried out with main website, will deliver to main website on micro-capacitance sensor operation information, while receiving main website to being spaced in micro-capacitance sensor
Control；And the power module 8 for power supply being connected with DSP module 1.
In this embodiment, distant place acquisition module 2 is provided with multi-channel optical fibre interface.Distant place acquisition module 2 is provided with 8 road optical fiber and connects
Mouthful.Distant place acquisition module 2 is connected with harvester 9 by optical fiber.Ensure that the data between collection in worksite device 9 and load governor are fast
Speed, reliability.
As shown in Fig. 2 using each load with distributed power source nearby, energy storage device etc. as a controlled interval, build
Stand a spatial load forecasting model, the model contain the output of distributed power source, load absorption power, load priority,
The data attributes such as energy storage parameter.Operational factor of the micro-grid load controller by each controlled interval in monitoring micro-capacitance sensor, it is real
When judge the running status of micro-capacitance sensor, process the logic control under the operating conditions such as grid-connected, isolated island, while system information is uploaded
To scheduling station, and receive control of the scheduling station to each interval in micro-capacitance sensor.A kind of typical allocation plan is：Controlled
Interval arranges harvester 9 nearby, the output of the distributed power source that the harvester 9 is used in the controlled interval of Real-time Collection,
The information such as load power, batteries to store energy capacity, and above- mentioned information Jing optical fiber is sent to into micro-grid load controller；For existing
Field does not possess the situation for installing harvester 9, and such as load is directly hung on bus, the AC acquisition modules 3 of micro-grid load controller
The three-phase current of 4 road loads can conveniently be accessed.Corresponding to harvester pattern, load governor is provided with 8 road optical fiber interfaces, can be with
The operation information at the controlled interval in 8 tunnels is received simultaneously；Corresponding to local load pattern, load governor is provided into module 4 by opening
The input of 22 way switch amounts, for monitoring the on off state of load.Above-mentioned 9 distant place information of harvester, local exchange of information
DSP module 1 is sent to switching value information Jing internal bus, micro-capacitance sensor running status is judged and performed corresponding by DSP module 1
Load controlling function.In addition, driving plate 5 is used to provide control node, so as to drive the control loop of corresponding load, load is realized
Switching.HMI module 6 is used to realize that the input of user's definite value, operation information such as show at function, the user friendly operational control.Far
Square communication module 7 will deliver to main website on micro-capacitance sensor operation information for carrying out information exchange with main website, while receiving main website to micro-
The control at interval in electrical network.Power module 8 is for powering for whole device.
Operation principle is：The operation information at each controlled interval of this utility model Real-time Collection, judges the fortune of current micro-capacitance sensor
Row state；When being judged as normally running, situation of change of the load governor according to load power calculates power-frequency response
Coefficient, in order to improve the precision of the coefficient, carries out statistical computation using probability weighted method；When off-grid operation is judged as, load
Real-time parameter of the controller according to each controlled interval, the distributed power source output power at comprehensive analysis current time, load work(
The information such as rate, stored energy capacitance, determine whether power shortage；When there is no power shortage, load governor is calculated in real time
The power-frequency response coefficient of each load；Power-frequency response when there is power shortage, when normally being run according to load
The information such as coefficient, load priority, are calculated the excision combination of optimum.At intervals of 9 pattern of harvester, the load for controlled
Controller sends control information to harvester, and the excision of its controlled interval internal loading is realized by the latter；For controlled interval
For local load pattern, the relay node in load governor control driving plate 5, corresponding load is connected by this node
Trip(ping) circuit, so as to cut off load.Load governor employs PID Closed-loop Control Strategies, it is possible to achieve to load power
Real-time tracking and continuous control, until realizing the power demand balance of whole micro-capacitance sensor.
Above-described is only some embodiments of the present utility model.For those of ordinary skill in the art, exist
On the premise of not paying creative work, some deformations and improvement can also be made, these belong to protection of the present utility model
Scope.
Claims (5)
1. a kind of micro-grid load controller, it is characterised in that include
DSP module, for monitoring micro-capacitance sensor running status and performing corresponding load control logic；
The distant place acquisition module being connected with the DSP module, for the operation information at the controlled interval in a Real-time Collection distant place；
What is be connected with the DSP module is opened into module, for the input of 22 way switch amounts；
The driving plate being connected with the DSP module, for connecting the trip(ping) circuit of corresponding load；
The HMI module being connected with the DSP module, the display of input and operation information for definite value；
The distant place communication module being connected with the DSP module, for carrying out information exchange with main website, by micro-capacitance sensor operation information
Main website is delivered to, while receiving control of the main website to being spaced in micro-capacitance sensor；
And the power module for power supply being connected with the DSP module.
2. micro-grid load controller according to claim 1, it is characterised in that also including AC acquisition modules, the AC
Acquisition module is connected with the DSP module.
3. micro-grid load controller according to claim 1, it is characterised in that the distant place acquisition module is provided with multichannel
Optical fiber interface.
4. micro-grid load controller according to claim 3, it is characterised in that the distant place acquisition module is provided with 8 tunnels
Optical fiber interface.
5. micro-grid load controller according to claim 4, device are characterised by that the distant place acquisition module passes through optical fiber
It is connected with harvester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621082497.7U CN206162121U (en) | 2016-09-26 | 2016-09-26 | Little load of power grid controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621082497.7U CN206162121U (en) | 2016-09-26 | 2016-09-26 | Little load of power grid controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206162121U true CN206162121U (en) | 2017-05-10 |
Family
ID=58650583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621082497.7U Active CN206162121U (en) | 2016-09-26 | 2016-09-26 | Little load of power grid controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206162121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134311A (en) * | 2020-09-15 | 2020-12-25 | 广东电网有限责任公司韶关供电局 | Control method, device, equipment and storage medium for small hydropower station power grid |
-
2016
- 2016-09-26 CN CN201621082497.7U patent/CN206162121U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134311A (en) * | 2020-09-15 | 2020-12-25 | 广东电网有限责任公司韶关供电局 | Control method, device, equipment and storage medium for small hydropower station power grid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103812219B (en) | A kind of many energy-accumulating power station associating long distance control systems | |
| WO2018103232A1 (en) | Control method for new energy micro-grid electric vehicle charging station | |
| CN108039740A (en) | A kind of photovoltaic plant participates in the control system and implementation method of primary frequency modulation | |
| CN105471109B (en) | Towards the Intelligent electricity utilization management system and its management method of family wind-solar hybrid power station | |
| CN107968429B (en) | Energy management device and system of light storage and charging system | |
| KR101298500B1 (en) | Micro-Grid Simulation Apparatus and Power Management System | |
| CN106096772A (en) | Energy based on intelligent power and load corporate management system and implementation method | |
| CN102842914A (en) | Energy storage power station monitoring system | |
| CN103748757A (en) | Hybrid electric generating power plant using a combination of real-time generation facilities and energy storage system | |
| CN102651553A (en) | Energy storage adjusting system for wind power field | |
| CN103001240A (en) | In situ monitoring system for energy storage of all-vanadium redox flow battery | |
| CN110855006B (en) | Distributed optical storage and charging regulation and control system based on edge internet of things agent | |
| CN112234639A (en) | Control device based on energy storage system charge and discharge | |
| CN103872775B (en) | A kind of intelligent micro-grid supervisory control system and method for supervising | |
| CN106410966A (en) | Energy management device for multi-energy complementary system | |
| CN104283229A (en) | Comprehensive energy storage power station coordination control system of subsystem self-control mode | |
| CN103199529A (en) | IEC61850 standard-based microgrid comprehensive coordination control framework | |
| CN113300403B (en) | Solar micro-grid energy storage capacity configuration optimization processing system and processing method | |
| CN110061565A (en) | A kind of energy storage charge/discharge capacity control system and method based on wind-driven generator | |
| CN202651806U (en) | Smooth wind-power photovoltaic power generation control system of battery energy storage station | |
| CN113595235A (en) | Energy storage management system based on ubiquitous power Internet of things | |
| CN104935075B (en) | Distributed power supply access user bidirectional metering, monitoring and energy efficiency management system and distributed power supply access user bidirectional metering, monitoring and energy efficiency management method | |
| WO2013029562A1 (en) | Information sampling method, dispatching method and system used for grid-connected wind farms | |
| CN206162121U (en) | Little load of power grid controller | |
| CN204068290U (en) | A kind of supervisory control system of battery energy storage station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |