CN114069859A - Coordinated power generation control system of new energy power station hybrid distributed machine group - Google Patents
Coordinated power generation control system of new energy power station hybrid distributed machine group Download PDFInfo
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- 238000010248 power generation Methods 0.000 title claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000002159 abnormal effect Effects 0.000 claims abstract description 8
- 230000011664 signaling Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 238000013480 data collection Methods 0.000 claims 1
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- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00004—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the power network being locally controlled
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
Abstract
The invention discloses a coordinated power generation control system of a new energy power station hybrid distributed cluster, which comprises: the data acquisition module is used for acquiring SCADA data of new energy machine sets and new energy machine groups with different properties on site; the remote scheduling processing module is used for receiving and processing an active scheduling instruction of the scheduling master station and performing AGC distribution according to the new energy source unit and the new energy source group; and the local AGC strategy processing module is used for carrying out AGC output distribution according to a local AGC plan when the scheduling master station is abnormal or does not receive an active scheduling instruction. The AGC control management terminal is communicated with the master station, data acquisition and processing of different types of new energy equipment are completed, the method for active power closed-loop control is met, and the overall compatibility of the control system is enhanced.
Description
Technical Field
The invention relates to the technical field of power equipment control, in particular to a coordinated power generation control system of a new energy power station hybrid distributed cluster.
Background
The new energy station is mature day by day, but in actual design and operation, due to cost or other reasons, a plurality of new energy station stations are often internally formed and are not single photovoltaic or new energy unit equipment, sometimes two or even a plurality of small-scale new energy station stations are additionally connected, and photovoltaic equipment or fan units in the stations are usually used as an integral cluster and only provide a single public interface for AGC output control, so that higher requirements are provided for the situation that an original single new energy station active power control system only supports the regulation and control of a single new energy device.
Disclosure of Invention
The embodiment of the invention aims to provide a coordinated power generation control system of a new energy power station hybrid distributed cluster, which is communicated with a main station through an AGC control management terminal, completes data acquisition and processing of different types of new energy equipment, meets the method of active power closed-loop control, and enhances the overall compatibility of the control system.
In order to solve the above technical problem, an embodiment of the present invention provides a coordinated power generation control system for a hybrid distributed cluster of a new energy power station, including:
the data acquisition module is used for acquiring SCADA data of new energy machine sets and new energy machine groups with different properties on site;
the remote scheduling processing module is used for receiving and processing an active scheduling instruction of the scheduling master station and performing AGC distribution according to the new energy source unit and the new energy source group;
and the local AGC strategy processing module is used for carrying out AGC output distribution according to a local AGC plan when the scheduling master station is abnormal or does not receive an active scheduling instruction.
Further, the data acquisition module comprises:
the preposed communication unit is used for modeling according to the point table of the new energy machine group and directly acquiring telemetering information, remote signaling information, telepulse information and remote regulation information;
the SCADA basic processing unit is used for carrying out statistical processing on the telemetering information, the remote signaling information, the remote pulse information and the remote regulation information;
and the SCADA statistical processing unit is used for distinguishing the new energy unit type and the new energy unit group type and carrying out classified statistics on the new energy unit types of different types.
Further, the remote scheduling processing module comprises:
the AGC substation statistical processing unit is used for counting basic parameters in the output adjusting process;
the AGC substation sends parameter information to the scheduling master station;
and the abnormity alarm processing unit is used for carrying out alarm prompt aiming at the abnormal condition occurring in the adjusting process.
Further, the basic parameters include: the active, the reduced active, the active adjustment up-lock flag and the active down-adjustment lock flag are adjustable.
Further, when the active scheduling instruction value sent by the scheduling master station is greater than the total active output value of the public connection branch, the remote scheduling processing module controls the target power generation output value of the new energy unit to be:
planPi＝ΔPa+Pi；
wherein the planPiGenerating a force output value, Δ P, for the ith targetaFor active power increment, PtarFor the active scheduling instruction value, PpccTo said publicTotal active power output value of connecting branch, PiFor the active power output, P, of the ith new energy unitjFor the active power output, maxP, of the jth new energy clusteriFor the ith new energy unit maximum active power output, maxPjAnd the maximum active output of the jth new energy machine group is obtained.
Further, when the active scheduling instruction value sent by the scheduling master station is smaller than the total active output value of the public connection branch, the remote scheduling processing module controls the target power generation output value of the new energy unit to be:
planPi＝Pi-ΔPs；
wherein the planPiGenerating a force output value, Δ P, for the ith targetsFor active power, P can be reducedtarFor the active scheduling instruction value, PpccFor the total active power output value, P, of the common connection branchiFor the active power output, P, of the ith new energy unitjThe active power output min P of the jth new energy machine groupiIs the minimum active output, min P, of the new energy unitjAnd the minimum active power output of the new energy machine group is obtained.
The technical scheme of the embodiment of the invention has the following beneficial technical effects:
the AGC control management terminal is communicated with the master station, data acquisition and processing of different types of new energy equipment are completed, the method for active power closed-loop control is met, and the overall compatibility of the control system is enhanced.
Drawings
Fig. 1 is a schematic diagram of a coordinated power generation control system of a new energy power station hybrid distributed cluster according to an embodiment of the present invention;
fig. 2 is a logic diagram of coordinated power generation control of a new energy plant hybrid distributed cluster according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1 and fig. 2, an embodiment of the present invention provides a coordinated power generation control system for a hybrid distributed cluster of a new energy power station, including: the remote automatic gain control system comprises a data acquisition module, a remote scheduling processing module and a local AGC strategy processing module. The data acquisition module is used for acquiring SCADA data of new energy machine sets and new energy machine groups with different properties on site; the remote dispatching processing module is used for receiving and processing an active dispatching instruction of the dispatching master station and carrying out AGC distribution according to the new energy source unit and the new energy source group; and the local AGC strategy processing module is used for carrying out AGC output distribution according to a local AGC plan when the scheduling master station is abnormal or does not receive an active scheduling instruction.
The coordinated power generation control system of the new energy power station hybrid distributed cluster is communicated with the main station through the AGC control management terminal, data acquisition and processing of different types of new energy equipment are completed, a method for active power closed-loop control is met, and the overall compatibility of the control system is enhanced.
How the AGC system receives the power grid dispatching command, receives and processes the active instruction issued by the dispatching master station, rapidly distributes the generated output aiming at different types of clusters, and feeds back accurate information to the master station in time is the key concern of the invention.
Further, the data acquisition module comprises: the system comprises a preposed communication unit, an SCADA basic processing unit and an SCADA statistical processing unit.
Specifically, the prepositive communication unit is used for modeling according to a point table of a new energy machine group and directly collecting telemetering information, remote signaling information, telepulse information and remote regulation information; the SCADA basic processing unit is used for carrying out statistical processing on the telemetering information, the remote signaling information, the remote pulse information and the remote regulating information; the SCADA statistical processing unit is used for distinguishing the type of the new energy unit from the type of the new energy unit group and carrying out classification statistics on the new energy unit types of different types.
Further, the remote scheduling processing module comprises: the AGC substation statistical processing unit, the AGC substation uploading parameter information feedback unit and the abnormity alarm processing unit. The AGC substation statistical processing unit is used for counting basic parameters in the output adjustment process; the AGC substation sends parameter information to the scheduling master station; and the abnormity alarm processing unit is used for carrying out alarm prompt aiming at the abnormal condition in the adjusting process.
Further, the basic parameters include: the active, the reduced active, the active adjustment up-lock flag and the active down-adjustment lock flag are adjustable.
Further, when the active scheduling instruction value sent by the scheduling master station is greater than the total active output value of the public connecting branch, the remote scheduling processing module controls the target power generation output value of the new energy unit to be:
planPi＝ΔPa+Pi；
wherein the planPiFor the ith target power generation output value, Δ PaFor active power increment, PtarFor successfully scheduling the instruction value, PpccFor total active output value of public connection branch, PiFor the active power output, P, of the ith new energy bankjFor the active power of the jth new energy cluster, maxPiIs the maximum active power output, maxP, of the ith new energy unitjAnd the maximum active output of the jth new energy machine group.
Further, when the active scheduling instruction value sent by the scheduling master station is smaller than the total active output value of the public connection branch, the remote scheduling processing module controls the target power generation output value of the new energy unit to be:
planPi＝Pi-ΔPs；
wherein the planPiFor the ith target power generation output value, Δ PsFor active power, P can be reducedtarFor successfully scheduling the instruction value, PpccFor total active output value of public connection branch, PiFor the active power output, P, of the ith new energy bankjThe active output of the jth new energy machine group, min PiIs the minimum active output min P of the new energy unitjThe minimum active power output of the new energy machine group is obtained.
And the SCADA equipment end model and the new energy machine group substation agree to associate, bind and match data parameters such as remote measurement, remote signaling, remote control and remote regulation required by the AGC master station and corresponding equipment, so as to judge the states of the new energy machine group and calculate the single machine capacity and the total capacity of the adjustable new energy machine group and the new energy machine group.
The overall regulation and control process of the new energy station AGC substation will be described with reference to the flowcharts of fig. 1 and 2.
And the dispatching master station continuously transmits dispatching parameters such as active power and the like, the dispatching parameters are transmitted to the AGC substation through the telecontrol device, and the control system judges the communication running state of the equipment after receiving the dispatching target value and evaluates whether the adjustable equipment exists.
And (4) evaluating and calculating different types of adjustable equipment, wherein the capacity of the basic principle is adjusted to be large in output, and the capacity is small and the output is small.
And issuing active power regulation output to each adjustable new energy machine set/new energy machine group. The new energy unit is directly adjusted to the target value. And after the new energy machine group receives the regulating target value, the regulating output is automatically distributed in the machine group according to the target value as the dispatching target value of the new energy machine group, and after the regulation is finished, the agreed AGC related measuring point value is fed back and is used for the calculation and statistics of the AGC substation.
If the adjustment target value is within the dead zone range of the adjustment target value, the adjustment is considered to be finished; otherwise, continuing the next round of adjustment until the target value is adjusted in place.
The embodiment of the invention aims to protect a coordinated power generation control system of a new energy power station hybrid distributed cluster, which comprises: the data acquisition module is used for acquiring SCADA data of new energy machine sets and new energy machine groups with different properties on site; the remote scheduling processing module is used for receiving and processing an active scheduling instruction of the scheduling master station and performing AGC distribution according to the new energy source unit and the new energy source group; and the local AGC strategy processing module is used for carrying out AGC output distribution according to a local AGC plan when the scheduling master station is abnormal or does not receive an active scheduling instruction. The technical scheme has the following effects:
the AGC control management terminal is communicated with the master station, data acquisition and processing of different types of new energy equipment are completed, the method for active power closed-loop control is met, and the overall compatibility of the control system is enhanced.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (6)
1. A coordinated power generation control system of a new energy power station hybrid distributed machine group is characterized by comprising:
the data acquisition module is used for acquiring SCADA data of new energy machine sets and new energy machine groups with different properties on site;
the remote scheduling processing module is used for receiving and processing an active scheduling instruction of the scheduling master station and performing AGC distribution according to the new energy source unit and the new energy source group;
and the local AGC strategy processing module is used for carrying out AGC output distribution according to a local AGC plan when the scheduling master station is abnormal or does not receive an active scheduling instruction.
2. The system for coordinated generation control of a hybrid distributed fleet of new energy power stations as claimed in claim 1, wherein said data collection module comprises:
the preposed communication unit is used for modeling according to the point table of the new energy machine group and directly acquiring telemetering information, remote signaling information, telepulse information and remote regulation information;
the SCADA basic processing unit is used for carrying out statistical processing on the telemetering information, the remote signaling information, the remote pulse information and the remote regulation information;
and the SCADA statistical processing unit is used for distinguishing the new energy unit type and the new energy unit group type and carrying out classified statistics on the new energy unit types of different types.
3. The system for coordinated generation control of a hybrid distributed fleet of new energy power plants according to claim 1, wherein said remote dispatch processing module comprises:
the AGC substation statistical processing unit is used for counting basic parameters in the output adjusting process;
the AGC substation sends parameter information to the scheduling master station;
and the abnormity alarm processing unit is used for carrying out alarm prompt aiming at the abnormal condition occurring in the adjusting process.
4. The coordinated generation control system for the new energy plant hybrid distributed fleet according to claim 3,
the basic parameters include: the active, the reduced active, the active adjustment up-lock flag and the active down-adjustment lock flag are adjustable.
5. The coordinated generation control system for a new energy plant hybrid distributed fleet according to claim 1,
when the active scheduling instruction value sent by the scheduling master station is greater than the total active output value of the public connection branch, the remote scheduling processing module controls the target power generation output value of the new energy unit to be:
planPi＝ΔPa+Pi；
wherein the planPiGenerating a force output value, Δ P, for the ith targetaFor active power increment, PtarFor the active scheduling instruction value, PpccFor the total active power output value, P, of the common connection branchiFor the active power output, P, of the ith new energy unitjFor the active power output, maxP, of the jth new energy clusteriFor the ith new energy unit maximum active power output, maxPjAnd the maximum active output of the jth new energy machine group is obtained.
6. The coordinated generation control system for a new energy plant hybrid distributed fleet according to claim 1,
when the active scheduling instruction value sent by the scheduling master station is smaller than the total active output value of the public connection branch, the remote scheduling processing module controls the target power generation output value of the new energy unit to be:
planPi＝Pi-ΔPs；
wherein the planPiGenerating a force output value, Δ P, for the ith targetsFor active power, P can be reducedtarFor the active scheduling instruction value, PpccFor the total active power output value, P, of the common connection branchiFor the active power output, P, of the ith new energy unitjThe active power output min P of the jth new energy machine groupiIs the minimum active output, min P, of the new energy unitjAnd the minimum active power output of the new energy machine group is obtained.
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