CN103151796A - Region coordinated control system and region coordinated control method based on active power distribution network - Google Patents
Region coordinated control system and region coordinated control method based on active power distribution network Download PDFInfo
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- CN103151796A CN103151796A CN2013100477622A CN201310047762A CN103151796A CN 103151796 A CN103151796 A CN 103151796A CN 2013100477622 A CN2013100477622 A CN 2013100477622A CN 201310047762 A CN201310047762 A CN 201310047762A CN 103151796 A CN103151796 A CN 103151796A
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Abstract
The invention discloses a region coordinated control system based on an active power distribution network. The power distribution network comprises a coordinated control region. The control system comprises source network coordinated controllers and a region coordinated controller, wherein the source network coordinated controllers are used for controlling the power output of distributed energy sources, monitoring the running states of the distributed energy sources and uploading the state information to the region coordinated controller, and the distributed energy sources are respectively provided with one source network coordinated controller; and the region coordinated controller is connected with all the source network coordinated controllers in the coordinated control region and used for receiving the states of the distributed energy sources, uploaded by all the source network coordinated controllers, and issuing control commands to the controllable distributed energy sources according to the states so as to dispatch the power of the corresponding distributed energy sources. The region coordinated control system realizes the efficient utilization of renewable energy sources in a self-government region and realizes an optimum region control target through the mutual coordination of the region coordinated controller and the source network coordinated controllers.
Description
Technical field
The present invention relates to the intelligent distribution network field and coordinate to control for the coordination control area under the active power distribution network of extensive access distributed energy, the present invention proposes a kind of coordination control area control method for coordinating of active power distribution network.
Background technology
Initiatively power distribution network with the introducing of its ACTIVE CONTROL mechanism in power distribution network, is the effective solution that following intelligent distribution network realizes the distributed energy of a large amount of accesses is carried out active management.But distributed energy is concentrated the demand that participates in the distribution scheduling operation to control to the coordination of active power distribution network and has been brought great challenge.
At present, distribution is for the not effective Coordinated Control in the distribution aspect of the extensive access of distributed energy, the control on the spot of the single Blast Furnace Top Gas Recovery Turbine Unit (TRT) that shows as low capacity of focusing mostly on, next is reliable microgrid control technology only, from systematic angle, with combinations such as distributed power generation, load, energy storage device and control device, form a single controlled unit, provide electric energy and heat energy to the user simultaneously.But microgrid is controlled, its limitation is arranged also, at first show its whole single controllability, whole microgrid control is coordinated the control area and must be in the scope of relatively concentrating, and secondly microgrid is emphasized to control the autonomy of coordinating inside, control area more, does not carry out the optimization coordination of distribution aspect.
Summary of the invention
In order to overcome the defective of prior art, the invention provides a kind of regional coordination control system based on the active power distribution network, wherein, this power distribution network comprises some distributed energies, each distributed energy is controlled output by combining inverter separately, this power distribution network comprises that is coordinated a control area, distributed energy in this coordination control area comprises the controlled distribution formula energy and clearance-type distributed energy, described regional coordination control system based on the active power distribution network comprises source net tuning controller and regional coordination controller, wherein:
Source net tuning controller, the power stage of control distributed energy, the running status of monitoring distributed energy is also uploaded state information to the regional coordination controller, and described each distributed energy is respectively arranged with a source net tuning controller;
The regional coordination controller, be connected with each the described source net tuning controller in this coordination control area, receive the state information of the distributed energy that each described source net tuning controller uploads and issue control command according to those state informations to the described controlled distribution formula energy, its corresponding distributed energy is carried out power dispatching.
Preferably, described power distribution network comprises a plurality of coordinations control areas.
Preferably, the state information of described distributed energy comprises that meritorious reactive power value that it is specified and current power exerts oneself.
Preferably, described control command sends according to the priority of the controlled distribution formula energy.
Preferably, described priority is according to the cost of electricity-generating appointment of the controlled distribution formula energy, and cost more low priority is higher.
Preferably, described clearance-type distributed energy generates electricity with maximum power.
Preferably, current scheduling power is during higher than the rated power of the distributed energy that is scheduled, and the source net tuning controller of this distributed energy is to the described regional coordination controller transmitted power signal that exceeds the quata.
Preferably, described regional coordination controller calculates and currently reaches the power shortage of coordinating the control area target and to the source net tuning controller sending controling instruction of the distributed energy of next priority after the power that receives described source net tuning controller exceeds the quata signal.
The present invention also provides a kind of control method of the regional coordination control system based on the active power distribution network, this system comprises some distributed energies, each distributed energy is controlled output by combining inverter separately, this power distribution network comprises that is coordinated a control area, distributed energy in this coordination control area comprises the controlled distribution formula energy and clearance-type distributed energy, and the method comprises the following steps:
S1: for the coordination control area of this power distribution network arranges a regional coordination controller, for each distributed energy in this coordination control area arranges respectively a source net tuning controller;
S2: coordinate the state that each source net tuning controller in the control area obtains each distributed energy of its control, comprise that meritorious reactive power value that it is specified and current power exerts oneself, and be uploaded to the regional coordination controller;
S3: the target of absolutely dissolving for satisfying the active power distribution network batch (-type) energy, batch (-type) energy distributed power generation equipment is not listed in and can be dispatched distributed energy, and its source net tuning controller is controlled it with maximum power output; Can dispatch distributed power source and carry out the priority division by cost of electricity-generating, cost of electricity-generating more low priority is higher;
S4: the regional coordination controller is according to the state of each distributed energy that obtains, obtain coordinating the scheduling power target value of distributed energy in the control area according to the power target value of coordinating the control area, and at first issue control command to the highest source net tuning controller of priority orders;
S5: source net tuning controller is controlled this distributed energy inverter and is reached scheduling power target value after receiving control command;
S6: if current scheduling power higher than the rated power of this distributed energy, source net tuning controller is to the regional coordination controller transmitted power signal that exceeds the quata;
S7: the regional coordination controller is after the power that receives source net tuning controller exceeds the quata signal, calculate current reaching and coordinate the power shortage that the control area target also needs, to the distributed energy source net tuning controller sending controling instruction of next priority;
S8: continue step S7, until current scheduling power is lower than the specified merit of the distributed energy that is scheduled
Rate.
Compared with prior art, beneficial effect of the present invention is as follows:
1, the control strategy of the present invention's introducing requires the maximum power output to batch (-type) energy distributed power generation equipment, has greatly improved the service efficiency of the batch (-type) energy;
2, the present invention has considered the priority of controlled distribution formula energy source device when participating in regional coordination of different cost of electricity-generatings, makes control procedure more meet the economy requirement;
3, the present invention for the regional coordination control of distributed power generation unit, makes power distribution network more open for distributed energy, is more conducive to applying of distributed energy.
Certainly, implement arbitrary product of the present invention and might not need to reach simultaneously above-described all advantages.
Description of drawings
Fig. 1 is the regional coordination control framework schematic diagram under active power distribution network of the present invention;
Fig. 2 is priority control method schematic diagram of the present invention;
Fig. 3 is regional coordination control method flow chart of the present invention.
Embodiment
The present invention will be further described with specific embodiment by reference to the accompanying drawings in the below.
The invention provides a kind of regional coordination control system based on the active power distribution network, this system comprises some distributed energies, each distributed energy is controlled output by combining inverter separately, this power distribution network comprises that is coordinated a control area, distributed energy in this coordination control area comprises the controlled distribution formula energy and clearance-type distributed energy, comprising:
Source net tuning controller, the power stage of control distributed energy, the running status of monitoring distributed energy is also uploaded state information to the regional coordination controller, and described each distributed energy is respectively arranged with a source net tuning controller;
The regional coordination controller, be connected with each the described source net tuning controller in this coordination control area, receive the state of the distributed energy that each described source net tuning controller uploads and issue control command according to those states to the described controlled distribution formula energy its corresponding distributed energy is carried out power dispatching.
Described power distribution network also can be set to a plurality of coordinations control areas.The method of work of this control system is as follows:
S1: for the coordination control area of this power distribution network arranges a regional coordination controller, for each distributed energy in this coordination control area arranges respectively a source net tuning controller;
S2: coordinate the state that each source net tuning controller in the control area obtains each distributed energy of its control, comprise that meritorious reactive power value that it is specified and current power exerts oneself, and be uploaded to the regional coordination controller;
S3: the target of absolutely dissolving for satisfying the active power distribution network batch (-type) energy, batch (-type) energy distributed power generation equipment is not listed in and can be dispatched distributed energy, and its source net tuning controller is controlled it with maximum power output; Can dispatch distributed power source and carry out the priority division by cost of electricity-generating, cost of electricity-generating more low priority is higher;
S4: the regional coordination controller is according to the state of each distributed energy that obtains, obtain coordinating the scheduling power target value of distributed energy in the control area according to the power target value of coordinating the control area, and at first issue control command to the highest source net tuning controller of priority orders;
S5: source net tuning controller is controlled this distributed energy inverter and is reached scheduling power target value after receiving control command;
S6: if current scheduling power higher than the rated power of this distributed energy, source net tuning controller is to the regional coordination controller transmitted power signal that exceeds the quata;
S7: the regional coordination controller is after the power that receives source net tuning controller exceeds the quata signal, calculate current reaching and coordinate the power shortage that the control area target also needs, to the distributed energy source net tuning controller sending controling instruction of next priority;
S8: continue step S7, until current scheduling power is lower than the specified merit of the distributed energy that is scheduled
Rate.
Embodiment
See also Fig. 1, in embodiment as shown in the figure, initiatively on a feeder line under power distribution network, each branched line with the distributed energy generating equipment all can be used as one and coordinates the control area, coordinating under control framework as graph region, the interior three place's distributed energies that have in control area 1 are coordinated in the first area, are respectively photovoltaic generation 6, gas turbine 8 and energy-storage system 9, and wherein the intermittent energy source generating equipment only has 6 one kinds of photovoltaic generations.In embodiment as shown in Figure 1, the first source net tuning controller 3, the second source net tuning controller 7 and the 3rd source net tuning controller 5 have been configured altogether, control respectively the work of photovoltaic generation 6, gas turbine 8 and energy-storage system 9, the regional coordination controller 4 of configuration is three source net tuning controllers of unified control, if also have distributed energy in other stub areas of feeder line, this zone can be used as a new coordination control area so, coordinates control area 2 as second in Fig. 1.
See also Fig. 2, initiatively the regional coordination control method step under power distribution network is as follows:
In the zone, each source net tuning controller obtains the state of each distributed energy of its control, comprises that meritorious reactive power value that it is specified and current power exerts oneself, and is uploaded to regional coordination controller 11;
The target of absolutely dissolving for satisfying the active power distribution network batch (-type) energy, batch (-type) energy distributed power source 13 is not listed in and can be dispatched distributed energy, and regional coordination controller 11 sending controling instructions are controlled it with maximum power output to source net tuning controller 12;
The first source net tuning controller 14 is controlled the first distributed power source 15 after receiving control command inverter reaches scheduling power target value;
Judge current the first distributed power source 15 power outputs, control target if reach regional coordination, coordination process stops; If current scheduling power is during higher than the rated power of this distributed energy, the first source net tuning controller 14 is to the regional coordination controller 11 transmitted powers signal that exceeds the quata;
The regional coordination control flow chart that provides under the active power distribution network of the present invention is provided Fig. 3.
In sum, the present invention uses the regional coordination control technology under the active power distribution network, realized the efficient utilization of regenerative resource in the autonomous area, and determined the priority of its scheduling actions for the cost of electricity-generating of distributed energy equipment, cooperatively interacted by regional coordination controller and source net tuning controller, realize regional optimal control target, guaranteed simultaneously the economy of whole control procedure.
The above disclosed preferred embodiment of the present invention just is used for helping to set forth the present invention.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this invention yet and only is described embodiment.Obviously, according to the content of this specification, can make many modifications and variations.These embodiment are chosen and specifically described to this specification, is in order to explain better principle of the present invention and practical application, thereby under making, the technical field technical staff can understand and utilize the present invention well.The present invention only is subjected to the restriction of claims and four corner and equivalent.
Claims (10)
1. regional coordination control system based on the active power distribution network, wherein, this power distribution network comprises some distributed energies, each distributed energy is controlled output by combining inverter separately, it is characterized in that, this power distribution network comprises that is coordinated a control area, and the distributed energy in this coordination control area comprises the controlled distribution formula energy and clearance-type distributed energy, described regional coordination control system based on the active power distribution network comprises source net tuning controller and regional coordination controller, wherein:
Source net tuning controller, the power stage of control distributed energy, the running status of monitoring distributed energy is also uploaded state information to the regional coordination controller, and described each distributed energy is respectively arranged with a source net tuning controller;
The regional coordination controller, be connected with each the described source net tuning controller in this coordination control area, receive the state information of the distributed energy that each described source net tuning controller uploads and issue control command according to those state informations to the described controlled distribution formula energy, its corresponding distributed energy is carried out power dispatching.
2. the regional coordination control system based on the active power distribution network as claimed in claim 1, is characterized in that, described power distribution network comprises a plurality of coordinations control areas.
3. the regional coordination control system based on the active power distribution network as claimed in claim 1, is characterized in that, the state information of described distributed energy comprises that meritorious reactive power value that it is specified and current power exerts oneself.
4. as claimed in claim 1ly it is characterized in that based on active power distribution network regional coordination controller system, described control command sends according to the priority of the controlled distribution formula energy.
5. as claimed in claim 4ly it is characterized in that based on active power distribution network regional coordination controller system, described priority is according to the cost of electricity-generating appointment of the controlled distribution formula energy, and cost more low priority is higher.
6. as claimed in claim 1ly it is characterized in that based on active power distribution network regional coordination controller system, described clearance-type distributed energy generates electricity with maximum power.
7. as claimed in claim 5 based on active power distribution network regional coordination controller system, it is characterized in that, current scheduling power is during higher than the rated power of the distributed energy that is scheduled, and the source net tuning controller of this distributed energy is to the described regional coordination controller transmitted power signal that exceeds the quata.
8. as claimed in claim 7 based on active power distribution network regional coordination controller system, it is characterized in that, described regional coordination controller calculates and currently reaches the power shortage of coordinating the control area target and to the source net tuning controller sending controling instruction of the distributed energy of next priority after the power that receives described source net tuning controller exceeds the quata signal.
9. control method based on the regional coordination control system of active power distribution network, this power distribution network comprises some distributed energies, each distributed energy is controlled output by combining inverter separately, it is characterized in that, this power distribution network comprises that is coordinated a control area, distributed energy in this coordination control area comprises the controlled distribution formula energy and clearance-type distributed energy, and the method comprises the following steps:
S1: for the coordination control area of this power distribution network arranges a regional coordination controller, for each distributed energy in this coordination control area arranges respectively a source net tuning controller;
S2: coordinate the state that each source net tuning controller in the control area obtains each distributed energy of its control, comprise that meritorious reactive power value that it is specified and current power exerts oneself, and be uploaded to the regional coordination controller;
S3: the target of absolutely dissolving for satisfying the active power distribution network batch (-type) energy, batch (-type) energy distributed power generation equipment is not listed in and can be dispatched distributed energy, and its source net tuning controller is controlled it with maximum power output; Can dispatch distributed power source and carry out the priority division by cost of electricity-generating, cost of electricity-generating more low priority is higher;
S4: the regional coordination controller is according to the state of each distributed energy that obtains, obtain coordinating the scheduling power target value of distributed energy in the control area according to the power target value of coordinating the control area, and at first issue control command to the highest source net tuning controller of priority orders;
S5: source net tuning controller is controlled this distributed energy inverter and is reached scheduling power target value after receiving control command;
S6: if current scheduling power higher than the rated power of this distributed energy, source net tuning controller is to the regional coordination controller transmitted power signal that exceeds the quata;
S7: the regional coordination controller is after the power that receives source net tuning controller exceeds the quata signal, calculate current reaching and coordinate the power shortage that the control area target also needs, to the distributed energy source net tuning controller sending controling instruction of next priority;
S8: continue step S7, until current scheduling power is lower than the specified merit of the distributed energy that is scheduled
Rate.
10. the control method of the regional coordination control system based on the active power distribution network as claimed in claim 9, is characterized in that, this power distribution network comprises a plurality of coordinations control areas.
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| CN106451540A (en) * | 2016-10-19 | 2017-02-22 | 国网江苏省电力公司泰州供电公司 | Power distribution network coordination control system and method |
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| CN111404195A (en) * | 2020-02-24 | 2020-07-10 | 国网浙江嘉善县供电有限公司 | Intelligent gateway-based scheduling method for microgrid with distributed power supply |
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