A kind of autonomous power system architectures and its progress control method
Technical field
The invention belongs to intelligent grid operation control technology, in particular to a kind of autonomous power system architectures and its operation
Control method.
Background technology
In order to tackle the huge renewable energy source network of structure and controllable system in lack of energy, Future Power System
Unite with the low-carbon for realizing system, efficient operation.With a large amount of renewable generator units, energy-storage units, mobile charge and discharge device
And power electronic equipment turns into the principal character of Future Power System, this advanced following power network configuration also will run it
Control has bigger uncertainty and complexity, and the uncertainty in system is mainly derived from load side two-way interaction, electronic
Access of car and microgrid etc., and complexity is mainly derived from substantial amounts of interbehavior inside power system.
In order to tackle above-mentioned challenge, domestic and foreign scholars propose the novel electric power such as microgrid, active distribution network system concept with
And the novel power grid progress control method of Agent system.However, these theories and method can not tackle following height well
Complexity and uncertain power network.Therefore, a kind of new Operation of Electric Systems control framework of research and design is needed badly, it is this to adapt to
Complicated electric power system characteristic.
Any complication system all has certain autonomous characteristic, and power system is no exception.With power network intelligent level
Step up, power system will be further equipped with the basis of high degree of autonomy, each unit (single smart machine), each region are (local
Power network) the various problems occurred in power network can be independently tackled using the authority of itself, the regulation and control of different stage possess accordingly
By stipulations and protocol interaction between authority, with the superior and the subordinate, the pattern will fully demonstrate the autonomous operating idea of divided power system, in mitigation
Entreat the work load of control centre.Therefore, be badly in need of a kind of power system with capacity of self-government of design, will from host computer theory and
Operation of Electric Systems control is combined, and then realizes safe and stable, the reliability service in each region.
The content of the invention
In view of the shortcomings of the prior art, the present invention proposes a kind of autonomous power system architectures and its progress control method, this
Invention is based on autonomous unit, using goal directed technology, to realize the real-time dynamically distributes of power system top level goal, from
The intelligent selection of unit sub-goal is controlled, autonomous unit is coordinated, autonomous operation, and then realize the autonomous operation control of whole power system
System.
Goal directed mechanism is a kind of Novel control mechanism suitable for complication system distribution operation, is novel intelligent electricity
The premise and important leverage of the realization of planar network architecture autonomy operation control, it mainly includes top level goal decomposition, sub-goal control zone
Domain and the selection of corresponding control strategy.This mechanism can quickly and efficiently decompose electric power system control target, and many in complexity
Under the power grid environment of change, target is decomposed according to existing knowledge base, it is determined that realize each sub-goal control area and
The control strategy of use.Its specific execution is carried out in each autonomous unit.
Autonomous unit is as the core cell of this novel intelligent power grid architecture, and its composition includes autonomous management device, power network
Physical layer, sensor, effector and corresponding information transmission network.The principle of autonomous management device is according to upper strata target need
Ask, on the basis of learning to knowledge base, analyzing, complete the self-monitoring of power grid control area information state selected and upper
The autoanalysis of layer control targe, self planning, self execution.
This Novel control framework realizes the autonomy of whole intelligent grid by the division to complex electric network autonomous area
Operation, it can quickly and efficiently realize the real-time target of power grid control, and the information greatly reduced between each level is exchanged, greatly
Grid stability and reliability are improved greatly, and then realize safe and stable, the reliability service of intelligent grid.Autonomous power system
" self-management " of each several part is realized, the information for effectively reducing each information interlayer is exchanged, and improves the adaptive of complication system
Ying Xing, reliability, while there is provided hoc network that be suitable for power system evolving development process and the whole power system of covering
Network is managed and operation control technology, as a kind of higher level, more perfect, more flexible intelligent grid.
The purpose of the present invention is realized using following technical proposals:
A kind of autonomous power system architectures, it is theed improvement is that, the system architecture includes key-course, physical layer and done
Disturb layer;
The key-course includes top layer autonomous control unit and bottom autonomous control unit;
The top layer autonomous control unit includes top layer control centre, Target Assignment unit autonomous list corresponding with sub-goal
Member;
The bottom autonomous control unit includes autonomous management device, autonomous area, sensor and effector;
The physical layer is actual autonomous power system, and it, which is included to generating electricity, transmitting electricity, distribution is related with electricity consumption sets
It is standby;
The interference layer is the disturbing factor outside actual autonomous power system, and it includes artificial disturbance factor, nature
Disturbing factor.
It is preferred that, the top layer autonomous control unit is corresponding with sub-goal by top layer control centre, goal decomposition unit
The cooperation of autonomous unit allocation unit, provides the corresponding sub-goal of the corresponding autonomous unit of top level goal at a certain moment.
It is preferred that, the specific item that the autonomous unit in the bottom autonomous control unit is produced according to top layer autonomous control unit
Mark, selects corresponding control strategy, determines the coordinate scheme distributed rationally and determine other related autonomous units of control area.
It is preferred that, the autonomous management device runs framework for a kind of " monitoring-analysis-planning-execution " in knowledge based storehouse;
The sensor of the autonomous unit is used to feed back autonomous unit running status;
The sensor of the autonomous management device is used for the real-time running state for monitoring autonomous area, including to failure or interference
Monitoring, the monitoring of related to realizing sub-goal physical quantity;
The effector of the autonomous unit is used for the related operation control sub-goal for performing top level goal distribution;
Effector in the autonomous management device is used for the operation control command for being used for performing autonomous unit.
A kind of autonomous Operation of Electric Systems control method that the present invention is provided based on another object, it is theed improvement is that,
Methods described includes:
(1) autonomous power system top layer control centre setting top level goal;
(2) Target Assignment unit is decomposed top level goal according to target instruction target word and the real-time monitoring information of power network;
(3) sub-goal is distributed to corresponding autonomous unit by Target Assignment unit;
(4) bottom autonomous unit determines autonomous unit control targe, optimal autonomous area, autonomous unit according to sub-goal
Coordinate scheme and autonomous operating scheme are simultaneously performed;
(5) real-time running state of autonomous power system is fed back, according to self-demand, autonomous unit independently completes autonomous region
Self-configuring, self-optimizing, self-shield and the selfreparing in domain, by autonomous unit itself and top layer control centre come test-target whether
Complete.
It is preferred that, top level goal described in the step (1) is power system operator according to electricity market operation demand
And the target set in real time.
It is preferred that, the step (2) includes top level goal being decomposed into 1~N number of sub-goal, and its sub-goal includes intelligence electricity
Net power transmission and distribution utility power quality control, tide optimization management and Demand Side Response.
It is preferred that, autonomous unit control targe described in the step (4) is autonomous unit combination top layer control centre point
The sub-goal matched somebody with somebody and the intelligent decision made with reference to autonomous unit autonomous management device to the monitoring information of autonomous area;
The optimal autonomous area, is a kind of autonomous unit corresponding optimal autonomous area within the physical layer, and it is in constraint
Under the conditions of, determine to realize the optimal autonomous region corresponding to sub-goal using the graph theory optimized algorithm related to Complex Networks Theory
Domain, includes the allocation optimum of transmission and distribution network and associate power equipment, the determination of the optimal autonomous area is autonomous power system
Self-configuring, the result of self-optimizing.
The autonomous unit coordinate scheme is autonomous unit according to target needs, is selecting the same of its autonomous operation task
When, it is determined that the coordination control of other related autonomous units, including to distributed power generation and energy storage, and line voltage, power, need
Ask the coordination control that side is responded.
The autonomous operating scheme of the autonomous unit, is that autonomous unit is appointed according to the current operation control of home rule mechanism completion
Business, including intelligent grid power transmission and distribution utility power quality control, tide optimization management, and Demand Side Response.
It is preferred that, self-configuring, self-optimizing, self-shield and the selfreparing of autonomous area described in the step (5) include:
1) self-configuring:The sub-goal that finger autonomous unit is distributed according to top layer control centre carries out oneself of power network physical layer resources
I reconfigures;Determined the need on the basis of operation of power networks information and autonomous unit internal demands intellectual analysis to feedback
Resource is reconfigured;
2) self-optimizing:Refer to autonomous unit according to system in running status not in the same time and the self-configuring behavior of response, profit
The optimization of resource distribution is carried out to it with the theory of optimal control;
3) self-shield:Refer to when consecutive running failure occurs because of internal operation failure or external interference for power system,
Perform related safeguard measure protection system;
4) selfreparing:Autonomous power system should be able to be in the case of self-shield failure be broken down, and knowledge based storehouse is simultaneously
OBD is carried out using intelligent diagnostics algorithm and self-configuring and self-optimizing is carried out so that system is repaired and extensive as much as possible
Multiple operation.
It is preferred that, object identifier includes described in the step (5):
Autonomous unit self checking, should be certainly by respective sensor Real-time Feedback to determine whether its corresponding control targe is realized
The real-time running state in region, including each node voltage, each node active power are controlled, and is judged whether by autonomous unit to complete phase
Answer whether target, including responsive node voltage are controlled in allowed band.Target, then continue the autonomous operation of itself as unfinished
Until respective objects are completed;
The real-time running state that top layer control centre feeds back according to autonomous unit, determines whether the realization of top level goal meets
It is required that, until meeting the requirements.
Compared with the prior art, beneficial effects of the present invention are:
Framework is controlled the invention belongs to a kind of operation of novel intelligent power network in intelligent grid operation control technology field, its
Controlling framework has higher novelty, and the complexity and uncertainty of following power network can be tackled well.
With autonomy feature, controlled by autonomous unit autonomy operation, realize the autonomous operation of autonomous power system
Control.
With quick self-adapted property feature, by goal directed mechanism, top layer control centre can be realized real-time
Top level goal.
With robustness feature, the autonomous operation control based on autonomous unit is effectively reduced the information between each level
Interaction, improves the robustness and stability of system.
With security features, the characteristic of self-configuring, selfreparing, self-shield and self-optimizing based on autonomous unit, each
Autonomous unit can realize region security when tackling external interference, and then ensure that the safety of whole system.
With reliability feature, with power network real-time running state feedback mechanism, top layer control centre and each autonomous list
Member can adjust target in real time, so that target is better achieved, realize real-time, interactive, it is ensured that the reliability of system.
It is with scalability feature, relatively independent between each autonomous unit, it is ensured that other autonomous units flexibly connect
Enter.
With flexibility characteristics, the autonomous power system physical layer corresponding to each autonomous unit is not to immobilize,
Its autonomy operation control border is dynamic change according to target requirement.
Brief description of the drawings
A kind of autonomous power system architectures figure that Fig. 1 provides for the present invention.
The autonomous unit configuration diagram that Fig. 2 provides for the present invention.
The autonomous Operation of Electric Systems control flow schematic diagram that Fig. 3 provides for the present invention.
Fig. 4 runs control flow schematic diagram for the autonomous unit that the present invention is provided.
Embodiment
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
The present invention is based on autonomous unit, using goal directed technology, to realize the real-time of power system top level goal
Dynamically distributes, the intelligent selection of autonomous unit sub-goal, autonomous unit is coordinated, autonomous operation, and then realizes whole power system
Autonomous operation control.It is described in detail below:
As shown in figure 1, controlling configuration diagram for the autonomous Operation of Electric Systems that the present invention is designed.It is big that it mainly includes three
Part, autonomous electric power system control layer, physical layer and external interference layer.Wherein, autonomous electric power system control layer includes top layer
Autonomous control unit, bottom autonomous control unit.Top layer autonomous control unit mainly includes top layer control centre, Target Assignment list
The intelligent selection unit of member, sub-goal correspondence autonomous unit;Bottom autonomous control unit includes autonomous management device, corresponding autonomy
Region and corresponding sensor and effector, autonomous unit can be divided into a variety of according to its achievable different running control target
Autonomous unit, such as realizes distribution voltage-regulation, completes wind electricity digestion target.Wherein autonomous management device is a kind of knowledge based storehouse
" monitoring-analysis-planning-execution " operation framework.The sensor of autonomous unit is for feeding back autonomous unit running status, certainly
The sensor for controlling manager is the real-time running state for monitoring autonomous area.The effector of autonomous unit is used for performing top layer
Effector in the related operation control sub-goal of Target Assignment, autonomous management device is controlled for performing the operation of autonomous unit
Order.
The physical layer refers to actual autonomous power system, including related to generating, transmission of electricity, distribution, electricity consumption complete
Portion's equipment, such as transmission line of electricity, transformer, generator, pressure regulator, load.
The interference layer refers to disturbing factor outside actual autonomous power system, including artificial disturbance factor, from
Right disturbing factor, such as thunder and lightning, human accident, it does not include the situation that physical layer itself breaks down.
Autonomous unit schematic diagram as shown in Fig. 2 mainly include autonomous management device, corresponding autonomous area and sensor and
Effector.
Wherein top layer autonomous control unit under goal directed mechanism, by top layer control centre, goal decomposition unit and
The cooperation of sub-goal correspondence autonomous unit allocation unit, provides each corresponding autonomy of top level goal for a certain moment
The corresponding sub-goal of unit.The specific item that each autonomous unit in bottom autonomous control unit is produced according to top layer autonomous control unit
Mark, the corresponding control strategy of intelligent selection, the coordination side for distributing rationally and determining other related autonomous units for determining control area
Case, then in the case where " monitoring-analysis-planning-execution " operation architecture of its own and the intelligence of knowledge base coordinate, is realized autonomous single
The realization of member operation control targe.
According to Fig. 3 and Fig. 4, it is known that the autonomous running of autonomous unit is as follows:
The effector of autonomous unit reads the corresponding sub-goal of top layer control centre distribution, and autonomous management device is based on this mesh
Mark, using itself knowledge base and under the analysis of the monitoring information of its respective sensor, determine current control targe, and advise
The coordination system needed for drawing between the allocation optimum of control area and autonomous unit, and performed by effector.Herein
Control targe be the monitoring of sub-goal and autonomous management device that autonomous unit is distributed according to top layer control centre to autonomous area
The intellectual analysis of information and the decision-making made.Autonomous unit not only possesses the sub-goal for completing the distribution of top layer control centre, also exists
Failure or the self-management process of interference are constantly carried out, to improve the adaptivity and robustness of system.
Based on above-mentioned autonomous operation controlling mechanism, the autonomous unit that the present invention is designed has self-configuring, self-optimizing, self-shield
With the feature of selfreparing:
1) self-configuring:The sub-goal that referring to autonomous unit can both distribute according to top layer control centre carries out power network physical layer money
Source is reconfigured self, preferably to complete sub-goal;Simultaneously inside the operation of power networks information and autonomous unit to feedback
On the basis of demand intellectual analysis, it is determined whether need resource to reconfigure, to better adapt to the change of environment, and then cause
Autonomous power system has from strong adaptability and robustness all the time;
2) self-optimizing:Refer to autonomous unit according to system in running status not in the same time and the self-configuring behavior of response, profit
The optimization of resource distribution is carried out to it with the theory of optimal control, to realize the optimum utilization to existing resource so that autonomous electricity
Force system keeps high-efficiency operation;
3) self-shield:Refer to when consecutive running failure occurs because of internal operation failure or external interference for power system,
Related safeguard measure can be performed rapidly with protection system as far as possible, and using intelligent Forecasting quick and precisely forecasting problem and and
When take measures to be prevented;
4) selfreparing:Autonomous power system should be able to be in the case of self-shield failure be broken down, and knowledge based storehouse is entered
Row OBD simultaneously carries out self-configuring and self-optimizing so that system reparation is simultaneously resumed operation.
Autonomous unit while the top level goal of top layer control centre setting is completed, can carry out in real time self-configuring, from
Optimization, self-shield and selfreparing.The theory of " self-management " of autonomous power system is by self-configuring, self-optimizing, self-shield
And self-healing properties embody.
As shown in figure 3, being respectively the control of the autonomous Operation of Electric Systems control flow of the present invention and bottom autonomous unit
Schematic flow sheet.According to Fig. 3, Fig. 4, and combine Fig. 1 architecture designs, present invention autonomy Operation of Electric Systems control process include with
Lower step:
Step 1:Top level goal is set by autonomous power system top layer control centre.Top level goal is power system operator
The target set in real time according to electricity market operation demand.
Top level goal can be set a certain amount of wind-powered electricity generation or makes power network can guarantee that a team is electronic to be dissolved in certain time period
The charging of automobile, refers to and completes certain region one and arrange charging tasks to electric automobile, complete the dissolving as its top layer of certain period wind-powered electricity generation
Target.
Step 2:By Target Assignment unit according to existing information and the feedback of real time information, top level goal is divided
Solution, can be analyzed to 1~N number of unit.Under above-mentioned example, its sub-goal collection may include to reduce other electric network swims, maintenance voltage
In certain limits, distribute to a certain amount of electric energy of electric automobile.
Step 3:In autonomous Operation of Electric Systems control function, it is determined that realizing that the suitable bottom of each sub-goal is autonomous single
Member and its control strategy.According to 1~N of sub-goal, the corresponding 1~N of autonomous unit of bottom is distributed to according to its affiliated control field,
Such as voltage autonomous control unit, trend autonomous management unit etc..
Step 4:Each corresponding autonomous unit of bottom determines autonomous unit control targe, optimal control according to corresponding sub-goal
Region processed, autonomous unit coordinate scheme and autonomous operating scheme are simultaneously performed, as shown in figure 3,1- knowledge baseds storehouse and monitoring information,
Optimum control range in sub-goal is determined, 2- determines mutually coordinated scheme, and 3- determines autonomous operating scheme, and 4- carries into execution a plan, 5-
Judge whether sub-goal is realized.Wherein:
Autonomous unit control targe is the sub-goal of autonomous unit combination top layer control centre distribution and is combined autonomous single
The intelligent decision that first autonomous management device is made to the monitoring information of autonomous area.
Optimal autonomous area, is a kind of autonomous unit corresponding optimal autonomous area within the physical layer, this optimal to be
Under constraints, determine to realize the optimal autonomous area corresponding to sub-goal, including transmission and distribution network using graph theory optimized algorithm
And the allocation optimum of associate power equipment etc..
Autonomous unit coordinate scheme is each autonomous unit according to target needs, the operation control of smart allocation response
Task, such as each region are active, Reactive Power Control.
Autonomous unit autonomy operating scheme, is that autonomous unit is appointed according to the current operation control of home rule mechanism completion
Business, such as idle pressure regulation.
Step 5:Feed back the real-time running state of autonomous power system in time by corresponding sensor, according to self-demand,
Autonomous unit independently completes self-configuring, self-optimizing, self-shield and the selfreparing of autonomous area, and by autonomous unit itself and top
Layer control centre comes whether test-target completes.If do not completed, by autonomous unit is further realized.If necessary, top layer
Control centre can carry out target adjustment, preferably to realize target.Wherein:
Based on the real-time running state of autonomous power system, according to self-demand, autonomous unit independently completes autonomous area
Self-configuring, self-optimizing, self-shield and selfreparing.First, the specific item that autonomous unit can both have been distributed according to top layer control centre
Mark carries out self reconfiguring for power network physical layer resources, preferably to complete sub-goal;Simultaneously in the operation of power networks to feedback
On the basis of information and autonomous unit internal demands intellectual analysis, it is determined whether need resource to reconfigure, to better adapt to
The change of environment, and then make it that autonomous power system has strongly-adaptive and robustness all the time.Secondly, autonomous unit is according to being
System carries out resource distribution most using the theory of optimal control in running status not in the same time and the self-configuring behavior of response to it
Optimization, to realize the optimum utilization to existing resource so that autonomous power system keeps high-efficiency operation.Again, power system
When consecutive running failure occurring because of internal operation failure or external interference, related safeguard measure can be performed rapidly with as far as possible
Protection system, and quick and precisely forecasting problem and take measures to be prevented in time using intelligent Forecasting.Finally, autonomous electricity
Force system should be able to be in the case of self-shield failure be broken down, and knowledge based storehouse simultaneously carries out self using intelligent diagnostics algorithm
Diagnose and carry out self-configuring and self-optimizing so that system is repaired and resumed operation as much as possible.
Object identifier includes two parts:First, each autonomous unit self checking, to determine whether its corresponding control targe is real
It is existing, by the real-time running state of the respective sensor Real-time Feedback autonomous area, such as each node voltage, each node active power
Deng, and judged whether by autonomous unit to complete respective objects, whether such as responsive node voltage is controlled in allowed band.If not
Target is completed, then continues the autonomous operation of itself until respective objects are completed.Second, top layer control centre is anti-according to autonomous unit
The real-time running state of feedback, determines whether the realization of top level goal meets the requirements, until meeting the requirements.
Finally it should be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention rather than its limitations, institute
The those of ordinary skill in category field with reference to above-described embodiment still can to the present invention embodiment modify or
Equivalent, these any modifications or equivalent without departing from spirit and scope of the invention are applying for this pending hair
Within bright claims.