CN106451781A - Power scheduling system - Google Patents
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- Y04S10/18—Systems supporting electrical power generation, transmission or distribution using switches, relays or circuit breakers, e.g. intelligent electronic devices [IED]
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Abstract
The invention discloses a power scheduling system. The power scheduling system comprises a plurality of power grid subsections which are configured, wherein each power grid subsection is provided with an IED (Intelligent Electronic Device); a plurality of IEDs are connected with a scheduling center through a network; power grid network data can be exchanged between the plurality of IEDs and the scheduling center; the power grid network data comprise load instructions; a plurality of equality transmission channels for transmitting data in an asynchronous mode are formed between the IEDs and the scheduling center; a power balance state is confirmed according to the power network data and a load request instruction of a first IED, and load triggering instructions are generated in the subsections; meanwhile, an adjacent IED is addressed according to the power balance state and the load triggering instruction of the first LED, and the adjacent IED is defined as a second IED; and a load balance instruction is generated from the second IED, and thus power state balance scheduling can be implemented. The power scheduling system is capable of ensuring balance operation of a power grid.
Description
Technical field
The invention belongs to technical field of electric power, more particularly to a kind of electric power dispatching system.
Background technology
Generally, electric or power transformer station is related to electrical transmission and distribution system, wherein, using transformator come by voltage from height
It is transformed into low or contrary.Electric power can flow through some transformer stations between power plant and electrical equipment or load, and can be with some
Step carrys out voltage of transformation.
Industrial equipment is related to strong energy consumption and including one or more special substation, which includes the master for being connected to electric power
The upstream transformer station in source (electrical network or indoor electromotor) and for dividing to the different loads center of the various parts for being distributed in industry
Both downstream transformer stations of distribution power.In addition, industry can have the electricity generation system of its own to meet its energy requirement, and also
With electric power management system, for effectively processing electric power for its purpose.
Power management capabilities include to get rid of load, metering, measurement voltage, electric current, power, energy and other power qualities
Parameter, for effectively processing the electricity needs of various equipment and process, power fluctuation, facility constraints etc..Just becoming common
It is to find the equipment of this species in the processing industry of such as refinery and electric power facility.But, this equipment is also suitable
In other processing industry, such as cement, paper pulp and papermaking, petrochemical factory, fertilizer, mining industry and metal, water and wastewater treatment factory
Deng.
Transformer station's (as both upstream and downstreams mentioned herein above) generally comprises some power transformers and distribution becomes
Depressor, wiring, switch, reactive power and grounding apparatus.Need to protect these power equipments to avoid abnormal (the such as electricity of power system
Stream and voltage surge) impact, and by providing the intelligence of different transforming plant protectings, control, supervision and function of measuring
Electronic installation (IED) is completing this target.IED is the equipment based on microprocessor, and which (for example, is broken with power system device
Road device, electromotor, transformator, electric lines of force, power cable, reactor, motor, capacitor bank etc.) associated.Generally, IED from
Sensor receives main electric power system information (as voltage and current) to execute various protections and function for monitoring.Common type
IED includes protectiveness relay system (protective relaying device), load tap switch (load tap
Changer) controller, chopper (circuit breaker) controller, reclosing (recloser) controller, pressure regulator etc..
Therefore, single IED can be performed in parallel some protections, metering, supervision and control function.
The automation of transformation substations is formed for maintaining and controlling the distinct device being related in the various process in transformer station
Important and complicated aspect.Manually and automatically control command function is also provided, as closing and opening switchgear (chopper and cut-out
Switch (disconnector)) or lifting/drop-out voltage level to maintain desired voltage level.Exist multiple agreements for
The automation of transformation substations, which includes a lot of proprietary protocols with customization communication link.But, for automation device for transformer substation
For the sake of realizing the simplification with use, it is thus highly desirable to from the interoperability of the device of different providers.
From International Electrotechnical Commission (International Electrotechnical Commission, IEC)
IEC61850 standard advocate using common engineering model (for example, using the common engineering model of IEC61850 of logical node),
Data form and communication protocol are realizing interoperability between the intelligent electronic device of various manufacturers (IED).In the recent period
IED so designed that support the IEC61850 standard for the automation of transformation substations, which provides interoperability and high level communication energy
Power, as GOOSE (towards the transformer substation case of general object) and MMS (manufacture message system) communications profile.
Power management capabilities (as getting rid of load) in processing industry (i.e. when electricity needs goes above supply of electric power,
Cut off the electric current in some line/loads) it is implemented as at present distributing in power automatic system and industrial electrical management system
Centralised functions.The centralized realization for getting rid of loading functional generally in the single process controller of upstream transformer station has some
Weakness.For example, it causes high capacity, this be due to the integrated institute for complete power system network in single process controller
Loading functional is got rid of, wherein it is desired to dispose get rid of load.It will be appreciated by those skilled in the art that generally utilize getting rid of load for realizing electricity
Power balance in system.Under heavy duty, power balance is negative and usually requires that voltage support.Alternatively, gently bearing
Under the conditions of load, power balance is positive and needs inductive compensation.
Get rid of in load system currently available, the centralized loading process controller that gets rid of is communicated with each IED with from power transformation
The various feeder lines (feeder) at the place of station obtain needing input data (for example, the electricity for the LS (getting rid of load) based on power balance
Pressure, electric current etc.), (shed) command information (for example, for getting rid of the information of load) is got rid of to send to feeder line by corresponding IED.This
The feeder line that text is used is usually electric wiring, and which may include leading in electromotor, load, total line (busway run) or conduit
Body, bulk electric power is carried to sub- feeder line plate or branched line plate from service equipment or is divided into less circuit to block electric power by which
Certain point.(feeder line is typically also known as medium voltage line, and which is used for from transformer station's distribution electric power to electrical equipment or to less
Transformer station).
Therefore, the availability of LS function is solely dependent upon and centralized gets rid of loading process controller.Centralized get rid of loading process control
Any operation interrupted of device processed causes LS function unavailable for whole transformer station.
Power balance (and power balance principle) described herein is balanced from the supply of Generation Side and from processing
The demand of the load-side of the electric power in factory.Power balance as being used herein below is calculated and is related to known to electric network and component
Calculate to realize power balance.One skilled in the art will recognize that electric network be electric device (for example, resistor, inducer, electricity
Container, transmission line, voltage source, current source and switch) interconnection.
Therefore, need now a kind of electric power dispatching system badly, load dispatch can be improved based on the permission of electrical management principle
Function, it is ensured that the balance movement of electrical network.
Content of the invention
The present invention proposes a kind of electric power dispatching system, solves power scheduling inefficiency in prior art, waste of manpower
With material resources while being difficult to ensure that the problem of grid balance.
The technical scheme is that and be achieved in that：Electric power dispatching system, including being configured to some electrical network sub-segments,
Each sub-segments is provided with IED, and some IED have control centre by network connection, states some IED with the control centre
Between Change Power network data, the electric power networks data include to set up between load command, and IED and control centre multiple
Reciprocity transmission channel transmits data in an asynchronous manner；Electric power networks data and loading demand order determination according to an IED
Power balance state, and load triggers instruction is generated in sub-segments；Meanwhile, negative according to the power balance state of an IED
Triggering command is carried, adjacent IED is addressed, is defined as the 2nd IED；Load-balancing instructions are generated using the 2nd IED, carry out electric power shape
State balance scheduling.
As a kind of preferred embodiment, the power balance condition, assign one of priority or more based on management
Multiple subarea section or load.
Preferred embodiment the control centre is connected with portable terminal as a kind of, the portable terminal device and tune
Communication serial ports, External modem and simulation telecontrol channel is provided between degree center.
As one kind preferred embodiment, the portable terminal device is provided with analog systemss, and the analog systemss are provided with
Login password, to prevent maloperation or illegally exit monitor state；Configuration site title, Network Serial Port type, protocol type
Relevant parameter；Start or terminate the button of main program, preserve and open channel data；Empty data field and event box；Right
Message frame trickling simple list；Explicit message frame time of origin, up-downlink direction and color separation show the classification of frame；Show and protect
Deposit with message raw data；Show and preserve concrete message data content, time of origin, transmission direction and color separation and show report
Literary type；Show frame data, remote signalling, remote measurement, remote control, event box and show the specifying information of above-mentioned every kind of type of message.
As one kind preferred embodiment, frame data display mode is：Show the data type of a frame, using mouse list
Hitting each byte has detailed parsing；Remote signalling：Display information body address, remote signalling period and remote signalling displacement markers；Remote measurement：Show and work as
Front remote measurement amount, remote measurement period and remote measurement markers, when substation is simulated distant measure setup dead band value, coefficient, upper alarm threshold, under alarm
Limit, Threshold Crossing Alert, analog telemetering change turn to random fashion or sinusoidal manner；Remote control：Show the remote information of base station end transmission, class
The type time；Event：Informosome address, event content markers and classification that display event occurs；Click event is found automatically
Corresponding message；Each frame data are carried out with detailed parsing, the classification of frame, transmission direction, link address, informosome ground
There is detailed Chinese explanation location, each byte to frame；The statistics of the promise breaking of passage；Interruption times and rule to each passage
The bit error rate about is counted, and is shown by form；Order simulation sends guidance command, and the order simulated by each is to order
Make the form of parameter enter edlin, click transmission and suspend, test command flow table is edited, execution interval is changed, click on and execute,
Message by organizing is sent one by one with execution interval；Support multiple automatization's electric quantity acquisition Standards Codes and customization stipulations.
As one kind preferred embodiment, the state estimation cycle of sub-segments is less than the state estimation week of electric power networks
Phase.
As one kind preferred embodiment in the electric power networks, sub-segments and control centre set up and be configured with
Unified model.
As one kind preferred embodiment, the electricity measure and control device is by remote measurement, remote signalling, remote control base station end and substation
The energy data at end, and parse according to corresponding stipulations.
The open circuit of IED control is realized by an IED as a kind of load command for preferred embodiment, sending
Power state balance realized by device.
After employing technique scheme, the invention has the beneficial effects as follows：Electric power networks number according to electric force monitoring apparatus
According to generating power balance state and load command using control centre, according to power balance state and load command, be automatically obtained
The control of adjacent power supervising device chopper, so as to realize the scheduling of electric power, can either use manpower and material resources sparingly, and improve scheduling effect
Rate, ensure that stablizing for electrical network again, additionally it is possible to by analog systemss, realizes the simulation of power monitoring, intuitively presents to work
Make personnel.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for technology description is had to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, this electric power dispatching system, including being configured to some electrical network sub-segments, each sub-segments is provided with
IED, some IED have control centre by network connection, state Change Power network between some IED and the control centre
Data, the electric power networks data include to set up multiple equity transmission channels between load command, and IED and control centre with different
Step mode transmits data；Power balance state is determined according to the electric power networks data of an IED and loading demand order, and
Load triggers instruction is generated in sub-segments；Meanwhile, according to the power balance state load triggering command of an IED, address phase
Adjacent IED, is defined as the 2nd IED；Load-balancing instructions are generated using the 2nd IED, carry out power state balance scheduling.
The power balance condition, assigns one or more sub-segments or the load of priority based on management.
The control centre is connected with portable terminal, is provided with communication string between the portable terminal device and control centre
Mouth, External modem and simulation telecontrol channel.
The portable terminal device is provided with analog systemss, and the analog systemss are provided with login password, with prevent maloperation or
Person illegally exits monitor state；Configuration site title, Network Serial Port type, the relevant parameter of protocol type；Start or terminate master
The button of program is wanted, is preserved and open channel data；Empty data field and event box；To message frame trickling simple list；Show
Message frame time of origin, up-downlink direction and color separation show the classification of frame；Show and preserve with message raw data；Show
With the concrete message data content of preservation, time of origin, transmission direction and color separation explicit message type；Show frame data, remote signalling,
Remote measurement, remote control, event box and show the specifying information of above-mentioned every kind of type of message.
Frame data display mode is：Show the data type of a frame, have detailed parsing using each byte of mouse-click；
Remote signalling：Display information body address, remote signalling period and remote signalling displacement markers；Remote measurement：Show current telemetry amount, remote measurement period and remote measurement
Markers, distant measure setup dead band value, coefficient, upper alarm threshold, lower alarm threshold, Threshold Crossing Alert, analog telemetering when substation is simulated becomes
Turn to random fashion or sinusoidal manner；Remote control：Show the remote information of base station end transmission, type of time；Event：Display event is sent out
The informosome address of life, event content markers and classification；Click event finds corresponding message automatically；To each frame number
According to carry out detailed parsing, the classification of frame, transmission direction, link address, informosome address, each byte to frame have detailed
Chinese is explained；The statistics of the promise breaking of passage；The bit error rate of interruption times and stipulations to each passage is counted, and is passed through
Form shows；Order simulation sends guidance command, and enters edlin to the order that each is simulated in the form of command parameter, clicks
Send and suspend, test command flow table is edited, execution interval is changed, click on and execute, by the message that organizes with execution interval
Send one by one；Support multiple automatization's electric quantity acquisition Standards Codes and customization stipulations.
The state estimation cycle of sub-segments is less than the state estimation cycle of electric power networks.
The electric power networks, sub-segments and control centre set up and are configured with unified model.
The electricity measure and control device passes through the energy data at remote measurement, remote signalling, remote control base station end and substation end, and according to corresponding
Stipulations are parsed.
The load command for being sent by an IED is realized the chopper of IED control and realizes power state balance.
The operation principle of the electric power dispatching system is：According to the electric power networks data of electric force monitoring apparatus, using in scheduling
The heart generates power balance state and load command, according to power balance state and load command, is automatically obtained adjacent power monitoring
The control of device chopper, so as to realize the scheduling of electric power, can either use manpower and material resources sparingly, and improve dispatching efficiency, can protect again
Demonstrate,prove stablizing for electrical network, additionally it is possible to by analog systemss, the simulation of power monitoring is realized, intuitively present to staff.
Presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement that is made etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of electric power dispatching system, it is characterised in that including being configured to some electrical network sub-segments, each sub-segments is provided with
IED, some IED have control centre by network connection, state Change Power network between some IED and the control centre
Data, the electric power networks data include to set up multiple equity transmission channels between load command, and IED and control centre with different
Step mode transmits data；Power balance state is determined according to the electric power networks data of an IED and loading demand order, and
Load triggers instruction is generated in sub-segments；Meanwhile, according to the power balance state load triggering command of an IED, address phase
Adjacent IED, is defined as the 2nd IED；Load-balancing instructions are generated using the 2nd IED, carry out power state balance scheduling.
2. electric power dispatching system according to claim 1, it is characterised in that the power balance condition, is referred to based on management
Send one or more sub-segments or the load of priority.
3. electric power dispatching system according to claim 2, it is characterised in that the control centre is connected with portable terminal
End, is provided with communication serial ports, External modem and simulation telecontrol channel between the portable terminal device and control centre.
4. electric power dispatching system according to claim 3, it is characterised in that the portable terminal device is provided with analog systemss,
The analog systemss are provided with login password, to prevent maloperation or illegally exit monitor state；Configuration site title, network
Serial ports type, the relevant parameter of protocol type；Start or terminate the button of main program, preserve and open channel data；Empty
Data field and event box；To message frame trickling simple list；Explicit message frame time of origin, up-downlink direction and color separation show
The classification of frame；Show and preserve with message raw data；Show and preserve concrete message data content, time of origin, transmission
Direction and color separation explicit message type；Show frame data, remote signalling, remote measurement, remote control, event box and show above-mentioned every kind of message class
The specifying information of type.
5. electric power dispatching system according to claim 4, it is characterised in that frame data display mode is：Show a frame
Data type, has detailed parsing using each byte of mouse-click；Remote signalling：Display information body address, remote signalling period and remote signalling
Displacement markers；Remote measurement：Show current telemetry amount, remote measurement period and remote measurement markers, when substation is simulated distant measure setup dead band value,
Coefficient, upper alarm threshold, lower alarm threshold, Threshold Crossing Alert, analog telemetering change turn to random fashion or sinusoidal manner；Remote control：Show base
Stand end transmission remote information, type of time；Event：Informosome address, event content markers and class that display event occurs
Not；Click event finds corresponding message automatically；Detailed parsing, the classification of frame, transmission side are carried out to each frame data
There is detailed Chinese explanation to, link address, informosome address, each byte to frame；The statistics of the promise breaking of passage；To each
The bit error rate of the interruption times and stipulations of individual passage is counted, and is shown by form；Order simulation sends guidance command, and
In the form of command parameter, edlin is entered to the order that each is simulated, is clicked transmission and suspend, test command flow table is edited, is repaiied
Change execution interval, click on and execute, sent with execution interval one by one by the message that organizes；Support multiple automatization's electric quantity acquisition marks
Quasi- stipulations and customization stipulations.
6. electric power dispatching system according to claim 5, it is characterised in that the state estimation cycle of sub-segments is less than electric power
The state estimation cycle of network.
7. electric power dispatching system according to claim 6, it is characterised in that the electric power networks, sub-segments and scheduling
Center is set up and is configured with unified model.
8. electric power dispatching system according to claim 7, it is characterised in that the electricity measure and control device is by remote measurement, distant
The energy data of letter, remote control base station end and substation end, and parse according to corresponding stipulations.
9. electric power dispatching system according to claim 8, it is characterised in that the load command reality for being sent by an IED
The chopper of existing IED control realizes power state balance.
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|---|---|---|---|
| CN201610958041.0A CN106451781A (en) | 2016-11-03 | 2016-11-03 | Power scheduling system |
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| CN201610958041.0A CN106451781A (en) | 2016-11-03 | 2016-11-03 | Power scheduling system |
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