CN107424077B - Multi-stage daily power generation plan and synchronous safety check design method for complex power grid - Google Patents
Multi-stage daily power generation plan and synchronous safety check design method for complex power grid Download PDFInfo
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Abstract
The invention provides a complex power grid multistage daily power generation plan and synchronous safety check design method, which comprises the following steps: (1) Giving three-level balance authority from high to low according to the national dispatching center, the regional dispatching center and the provincial dispatching center; (2) When a high-balance authority unit initiates a daily research state pre-planning scheme, the next-stage authority unit actively responds to accept a new scheme and performs electric power and electricity balance at the current stage; (3) When the lower level unit finds that the current level intra-day pre-planning has the problem of incapacity of balancing, the upper level unit is requested to initiate a new research state intra-day pre-planning scheme, and electric power and electric quantity balancing is carried out in a larger power grid range. The invention realizes the coordination, programming and combined safety check of the national province day-to-day power generation pre-planning by calling the safety check and day-to-day planning functions.
Description
Technical Field
The invention relates to a power generation plan and a checking design method, in particular to a multi-stage daily power generation plan and a synchronous checking design method for a complex power grid.
Background
With the comprehensive establishment of a new generation intelligent power grid dispatching support system in a power grid in China, a dispatching plan and checking technology is applied to a dispatching plan professional daily work flow and becomes an effective tool for quantitatively analyzing future planning power flow and managing and controlling planning risks. At present, the planning and checking functions of the planning and checking method are only aimed at planning services in the management range of the current level dispatching center, and the key technical requirements of increasingly formed large-scale interconnected power grids on the upper and lower level coordination planning and whole network checking of the planning can not be met.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a multi-stage daily power generation plan and synchronous check design method for a complex power grid. The invention realizes the coordination, programming and joint check of the national province daily power generation pre-planning by calling the checking and daily planning functions.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in a method for checking a multi-stage intra-day power generation plan and synchronism of a complex power grid, the improvement comprising the steps of:
(1) Balancing rights given by a national dispatching center, a regional dispatching center and a provincial dispatching center, and dividing the rights into three levels of high, medium and low;
(2) When a high balance authority unit initiates an intra-day pre-planning scheme, a next-stage authority unit responds to the scheme and balances the electric power and the electric quantity of the current stage;
(3) When the lower level unit finds that the balance cannot be expected in the day of the current level, the upper level unit is requested to initiate a new day pre-planning scheme so as to balance the electric power and the electric quantity in a larger power grid range.
Wherein, in the step (2), the information of the prediction scheme includes: the predicted scheme number, the trigger time, the initiating unit balance level, the scheme simple description, the scheme plan starting time, the scheme ending time, the scheme point number and the unit needing response.
Wherein, in the step (2), the information of the response includes: scheme number, accepted scheme time, receiving unit, whether response is required, current work progress and current work progress profile.
In the step (2), if the unit of the predicted scheme in the initiation day is the national center, the method comprises the following steps:
step 2-1-1, creating a periodic scheme;
step 2-1-2, collecting the intra-day plan data reported by the regional center and the provincial scheduling center;
step 2-1-3, integrating whole network data, and issuing intra-day planning data to the differentiation center and the provincial dispatching center;
and 2-1-4, checking the whole network data, if the checking result meets the power grid operation constraint, switching the period scheme to the next period, otherwise, re-compiling the daily planning scheme.
In the step (2), if the unit of the prediction scheme in the initiation day is the area center or the provincial scheduling center, the method includes the following steps:
step 2-2-1, creating a periodic scheme;
step 2-2-2, receiving the intra-day planning data sent by the national center;
and 2-2-3, checking the daily technical data, if the checking result meets the power grid operation constraint, switching the periodic scheme to the next period, and otherwise, compiling the daily prediction scheme.
In the step (3), the unit of initiating the new intra-day preplanning scheme is the national center, and the method comprises the following steps:
step 3-1-1, creating an intra-day planning scheme and issuing to a regional dispatching center and a provincial dispatching center, and triggering the regional dispatching center and the provincial dispatching center to automatically compile work in a day;
step 3-1-2, collecting and integrating the schemes reported by the local area differentiating center and the provincial dispatching center;
step 3-1-3, transmitting the integrated scheme to the current level, the distinguishing center and the provincial scheduling center;
step 3-1-4, checking each level of center, if the checking result meets the power grid constraint, ending the flow, and setting the planned work into a formal planning system for execution; otherwise, the step is skipped to the step 3-1-1, and a new planning flow is continuously initiated until the checking result meets the power grid constraint.
In the step (3), if the unit of initiating the new intra-day preplanning scheme is the differentiation center, the method includes the following steps:
step 3-2-1, creating a provincial range dividing scheme and issuing to a provincial dispatching center governed by the regional dispatching center, and triggering the automatic programming work of the daily study of the provincial dispatching center;
step 3-2-2, collecting and integrating the scheme reported by the provincial scheduling center;
step 3-2-3, updating the whole network planning data, and sending the integrated scheme to each provincial dispatching center for checking;
step 3-2-4, if the checking result meets the power grid constraint, ending the flow, and entering a formal planning system for execution by the planning; otherwise, executing the step 3-2-5;
step 3-2-5, applying for a full network balancing scheme;
step 3-2-6, receiving daily plan data sent by the national dispatching center, and sending the daily plan data to the local dispatching center and the provincial dispatching center for checking;
step 3-2-7, if the checking result meets the constraint of the power grid, ending the scheme flow, and entering a formal planning system for execution; otherwise, executing the step 3-2-8;
step 3-2-8, creating a scheme;
step 3-2-9, collecting and integrating schemes reported by the regional dispatching center and the provincial dispatching center;
step 3-2-10, updating the whole network data, and sending the integrated scheme to a provincial dispatching center for checking;
step 3-2-11, if the checking result meets the power grid constraint, ending the scheme flow, and entering a formal system for execution; otherwise, jumping to the step 3-2-8, and continuing to initiate a new planning flow until the checking result meets the power grid constraint.
In the step (3), if the unit of initiating the prediction scheme in the new day is the provincial dispatching center, the method includes the following steps:
step 3-3-1, creating a local province range scheme;
step 3-3-2, collecting the scheme reported by the province and checking;
step 3-3-3, if the checking result meets the constraint of the power grid, ending the scheme flow, and entering a formal planning system for execution; otherwise, executing the step 3-3-4;
step 3-3-4, applying for a regional balance scheme;
step 3-3-5, receiving the intra-day planning data sent by the regional center, and checking;
step 3-3-6, if the checking result meets the power grid constraint, ending the scheme flow, and entering the scheme flow into a formal planning system for execution; otherwise, executing the step 3-3-7;
step 3-3-7, creating a scheme;
step 3-3-8, collecting the scheme reported by the province and checking;
step 3-3-9, if the checking result meets the constraint of the power grid, ending the scheme flow, and entering the scheme flow into a formal planning system for execution; otherwise, jumping to the step 3-3-7, and continuing to initiate a new compiling flow until the checking result meets the power grid constraint.
Compared with the prior art, the invention has the beneficial effects that:
the invention realizes the coordination, programming and joint check of the national province daily power generation pre-planning by calling the checking and daily planning functions. The construction of the daily joint quantitative checking function can improve the synergy and accuracy of the pre-planning modification, and meanwhile, the practical level of the daily rolling plan on-line closed-loop operation of the scheduling above all provinces can be improved.
Drawings
FIG. 1 is a flow chart of a multi-stage daily power generation plan and synchronous check design method of a complex power grid;
FIG. 2 is a national style side intra-day joint quantitative check application workflow provided by the invention;
FIG. 3 is a separate adjustment side intra-day joint quantitative check application workflow provided by the invention;
fig. 4 is a working flow of the provincial side intra-day joint quantitative check application provided by the invention.
Description of the embodiments
The invention is described in further detail below with reference to the accompanying drawings.
The general principle of daily combined quantitative checking is 'top-down', namely, a new pre-planning research scheme is issued by an upper dispatching center, and combined checking is carried out after corresponding plans are automatically responded and compiled by a lower unit daily planning system, and the results of each stage are synchronized to the whole network, so that each stage of dispatching personnel can judge whether the scheme meets the operation index requirement.
The whole system has the functions of scheme monitoring, comprehensive data processing of daily planning schemes, automatic programming of daily planning, safety check, check result analysis and post-daily planning adjustment.
The comprehensive data processing function of the daily planning scheme has the capabilities of collecting, summarizing and issuing the whole network pre-planning data under the period and manual triggering, so as to adapt to the daily combined quantitative checking period operation and manual triggering function.
And automatically programming the daily pre-planning scheme, namely automatically programming and adjusting the daily pre-planning scheme according to the requirements of the electric power and electricity balance, peak regulation and frequency modulation and clean energy consumption principles. The scheduling centers of all levels should add an automatic adjustment function for planning and planning in the daily planning system, and ensure that the scheme data circulation process is kept isolated from the formal planning system.
The intra-day pre-planning automatic programming function should have the following functions:
1. the scheme monitoring circulation function operating according to the balanced management authority mode is realized, namely: (1) the system can manually trigger a new scheme, and the lower system can receive a scheme triggered by the upper level in real time and automatically compile the current level daily pre-planning according to the received daily pre-planning information; (2) the lower level unit can modify daily pre-planning suggestions to the upper level application through the monitoring circulation function, and the upper level unit decides whether to modify the pre-planning and initiate a new pre-planning scheme according to the application information as appropriate after receiving the application information.
2. The secondary distribution of the unit and the tie line plan is realized;
3. the daily adjustment planning result of the scheduling area can be formed according to the principle and parameter setting of each area;
4. the results should be automatically returned to the caller in a standard format.
5. The method is provided with daily check and analysis of the planning performance of the daily adjustment of the whole network.
6. The transaction plan completion rate analysis should be performed to analyze the completion rate of the cross-district and cross-provincial power exchange plan.
The daily check function should have the following functions:
1. the checking response of the intra-day planning scheme is realized, and the latest intra-day full-network planning scheme is automatically read in;
2. the method has the functions of data display, quick check and result display analysis of the daily pre-plan in a scheme mode;
3. the method has the advantages that the process, the result and other information are synchronized by taking the specific scheme as a range, so that the real-time monitoring of scheme progress by operators in the dispatching centers of all levels is facilitated.
As shown in fig. 1, a multi-stage daily power generation plan and synchronous check design method for a complex power grid comprises the following steps:
(1) Giving three-level balance authority from high to low according to the national dispatching center, the regional dispatching center and the provincial dispatching center;
(2) When a high-balance authority unit initiates an intra-day pre-planning scheme, the next-stage authority unit actively responds to accept a new scheme and performs electric power and electricity balance at the stage;
(3) When the lower level unit finds that the current level intra-day pre-planning has the problem of incapacity of balancing, the upper level unit is requested to initiate a new research state intra-day pre-planning scheme, and electric power and electric quantity balancing is carried out in a larger power grid range.
The scheme trigger information should include: scheme number, trigger time, initiation unit balance level, scheme simple description, scheme plan start time, scheme plan end time, scheme plan point number, and required response unit.
The scheme plan starting time should be generally within 4 hours in the future, the corresponding unit defaults to the full response of the subordinate unit, one or more units can be designated, and the unit names are separated by a pause number to facilitate the system identification.
The monitoring response information should include: scheme number, accepted scheme time, receiving unit, whether response is required, current work progress simple description.
If the receiving scheme unit does not require a response scheme, the daily pre-planning data is synchronized according to the scheme number and the scheme starting time, so that the whole network scheme data can be obtained through checking.
The recipe trigger and monitor responses form a closed loop on the upper and lower level workflows. Whether the scheme coordination is participated or not in the system is required to respond to the scheme of the upper level unit, the scheme requires the response unit to synchronously report the running progress of the respective system through the monitoring response interaction file, and the scheduling personnel of the scheme initiating unit can master the overall scheme progress. The specific interaction is completed by transmitting files through the comprehensive data processing function of the daily planning scheme, and each unit forms a special interaction file by using the unit name and the scheme number, so that no conflict is caused between the special interaction file and the interaction files reported by other schemes and units.
The daily pre-planning circulation is circulated through the comprehensive data processing function of the daily planning scheme, the content format can refer to the definition format of various planning data in the daily combined quantitative checking planning data sharing standard to form a file, and the file is triggered along with the scheme to be issued. And after each unit receives the data, automatically carrying out balance establishment according to a new issuing plan, merging the planning result of the unit and planning data of other corresponding time periods, and reporting according to seven major data sharing standards.
And carrying out daily combined quantitative check on seven kinds of plan data subjected to full-network synchronization, and synchronizing the calculation process and the result through a daily plan scheme comprehensive data processing function. Specific data specifications can be seen in the data sharing specification of the Japanese joint quantitative check plan.
As shown in fig. 2, if the unit of initiating the intra-day pre-planning scheme is the national center, the specific steps are as follows:
step 2-1-1, creating a periodic scheme;
step 2-1-2, collecting the intra-day plan data reported by the regional center and the provincial scheduling center;
step 2-1-3, integrating whole network data, and issuing intra-day planning data to the differentiation center and the provincial dispatching center;
and 2-1-4, checking the whole network data, if the checking result meets the power grid operation constraint, transferring the period scheme to the next period through a checking flow, and otherwise, compiling the intra-day scheme.
The national tone side carries out daily schedule programming, and the specific steps are as follows:
step 3-1-1, creating an intra-day planning scheme and issuing to a regional dispatching center and a provincial dispatching center, and triggering the regional dispatching center and the provincial dispatching center to automatically compile work in a day;
step 3-1-2, collecting and integrating the schemes reported by the local area differentiating center and the provincial dispatching center;
step 3-1-3, transmitting the integrated scheme to the current level, the distinguishing center and the provincial level dispatching center;
step 3-1-4, checking at each level of center, if the checking result meets the constraint of the power grid, ending the scheme flow, and planning to enter a formal planning system for execution; otherwise, the step is skipped to the step 3-1-1, and a new planning flow is continuously initiated until the checking result meets the power grid constraint.
As shown in fig. 3 and 4, the unit of initiating the intra-day pre-planning scheme is the differentiation center or provincial dispatch center, including the steps of:
step 2-2-1, creating a periodic scheme;
step 2-2-2, receiving the intra-day planning data sent by the national center;
and 2-2-3, checking the daily technical data, if the checking result meets the power grid operation constraint, transferring the periodic scheme to the next period through a checking flow, and otherwise, compiling the daily scheme.
The regional center carries out daily scheme programming, and the specific steps are as follows:
step 3-2-1, creating a provincial range dividing scheme and issuing to a provincial dispatching center governed by the regional dispatching center, and triggering the automatic programming work of the daily study of the provincial dispatching center;
step 3-2-2, collecting and integrating the scheme reported by the provincial scheduling center;
step 3-2-3, updating the whole network planning data, and sending the integrated scheme to each provincial dispatching center for checking;
step 3-2-4, if the checking result meets the constraint of the power grid, ending the scheme flow, and planning to enter a formal planning system for execution; otherwise, executing the step 3-2-5;
step 3-2-5, applying for a full network balancing scheme;
step 3-2-6, receiving daily plan data sent by the national dispatching center, and sending the daily plan data to the local dispatching center and the provincial dispatching center for checking;
step 3-2-7, if the checking result meets the constraint of the power grid, ending the scheme flow, and planning to enter a formal planning system for execution; otherwise, executing the step 3-2-8;
step 3-2-8, creating a scheme;
step 3-2-9, collecting and integrating schemes reported by the regional dispatching center and the provincial dispatching center;
step 3-2-10, updating the whole network data, and sending the integrated scheme to a provincial dispatching center for checking;
step 3-2-11, if the checking result meets the constraint of the power grid, ending the scheme flow, and planning to enter a formal planning system for execution; otherwise, jumping to the step 3-2-8, and continuing to initiate a new planning flow until the checking result meets the power grid constraint.
The provincial dispatching center carries out the programming of the intra-day scheme, and the specific steps are as follows:
step 3-3-1, creating a local province range scheme;
step 3-3-2, collecting the scheme reported by the province and checking;
step 3-3-3, if the checking result meets the constraint of the power grid, ending the scheme flow, and planning to enter a formal planning system for execution; otherwise, executing the step 3-3-4;
step 3-3-4, applying for a regional balance scheme;
step 3-3-5, receiving the intra-day planning data sent by the regional center, and checking;
step 3-3-6, if the checking result meets the constraint of the power grid, ending the scheme flow, and planning to enter a formal planning system for execution; otherwise, executing the step 3-3-7;
step 3-3-7, creating a scheme;
step 3-3-8, collecting the scheme reported by the province and checking;
step 3-3-9, if the checking result meets the constraint of the power grid, ending the scheme flow, and planning to enter a formal planning system for execution; otherwise, jumping to the step 3-3-7, and continuing to initiate a new planning flow until the checking result meets the power grid constraint.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the scope of the claims.
Claims (5)
1. A checking method for multi-stage daily power generation plans and synchronous safety of a complex power grid is characterized by comprising the following steps:
(1) Balancing rights given by a national dispatching center, a regional dispatching center and a provincial dispatching center, and dividing the rights into three levels of high, medium and low;
(2) When a high balance authority unit initiates an intra-day pre-planning scheme, a next-stage authority unit responds to the scheme and balances the electric power and the electric quantity of the current stage;
(3) When the lower level unit finds that the balance cannot be expected in the day of the current level, the upper level unit is requested to initiate a new day pre-planning scheme so as to balance the electric power and the electric quantity in a larger power grid range;
in the step (3), the unit of initiating the new intra-day preplanning scheme is the national center, and the method comprises the following steps:
step 3-1-1, creating an intra-day planning scheme and issuing to a regional dispatching center and a provincial dispatching center, and triggering the regional dispatching center and the provincial dispatching center to automatically compile work in a day;
step 3-1-2, collecting and integrating the schemes reported by the local area differentiating center and the provincial dispatching center;
step 3-1-3, transmitting the integrated scheme to the current level, the distinguishing center and the provincial scheduling center;
step 3-1-4, checking by each level of safety center, and if the checking result meets the safety constraint of the power grid, ending the flow, and planning and listing into a formal planning system for execution; otherwise, jumping to the step 3-1-1, and continuing to initiate a new planning flow until the checking result meets the safety constraint of the power grid;
in the step (3), if the unit of initiating the new intra-day pre-planning scheme is the differentiation center, the method includes the following steps:
step 3-2-1, creating a provincial range dividing scheme and issuing to a provincial dispatching center governed by the regional dispatching center, and triggering the automatic programming work of the daily study of the provincial dispatching center;
step 3-2-2, collecting and integrating the scheme reported by the provincial scheduling center;
step 3-2-3, updating the whole network planning data, and sending the integrated scheme to each provincial dispatching center for checking;
step 3-2-4, if the checking result meets the safety constraint of the power grid, ending the flow, and entering a formal planning system for execution by the planning; otherwise, executing the step 3-2-5;
step 3-2-5, applying for a full network balancing scheme;
step 3-2-6, receiving daily plan data sent by the national dispatching center, and sending the daily plan data to the local dispatching center and the provincial dispatching center for checking;
step 3-2-7, checking the calculation result, if the calculation result meets the safety constraint of the power grid, ending the scheme flow, and entering a formal planning system for execution; otherwise, executing the step 3-2-8;
step 3-2-8, creating a scheme;
step 3-2-9, collecting and integrating schemes reported by the regional dispatching center and the provincial dispatching center;
step 3-2-10, updating the whole network data, and sending the integrated scheme to a provincial dispatching center for safety check calculation;
step 3-2-11, checking the calculation result, if the calculation result meets the safety constraint of the power grid, ending the scheme flow, and entering a formal system for execution; otherwise, jumping to the step 3-2-8, and continuing to initiate a new planning flow until the checking result meets the safety constraint of the power grid;
in the step (3), if the unit of initiating the new intra-day pre-planning scheme is the provincial scheduling center, the method includes the following steps:
step 3-3-1, creating a local province range research state scheme;
step 3-3-2, collecting the scheme reported by the province and performing checking calculation;
step 3-3-3, checking the calculation result, if the calculation result meets the safety constraint of the power grid, ending the flow of the research state scheme, and entering a formal planning system for execution; otherwise, executing the step 3-3-4;
step 3-3-4, applying for a regional balance research state scheme;
step 3-3-5, receiving the intra-day planning data sent by the regional center, and checking;
step 3-3-6, checking the calculation result, if the calculation result meets the safety constraint of the power grid, ending the scheme flow, and entering the scheme flow into a formal planning system for execution; otherwise, executing the step 3-3-7;
step 3-3-7, creating a scheme;
step 3-3-8, collecting the scheme reported by the province and checking;
step 3-3-9, checking the calculation result, if the calculation result meets the safety constraint of the power grid, ending the scheme flow, and entering the scheme flow into a formal planning system for execution; otherwise, jumping to the step 3-3-7, and continuing to initiate a new compiling flow until the checking result meets the safety constraint of the power grid.
2. The method according to claim 1, wherein in the step (2), the information of the pre-planning scheme includes: the scheme number, the trigger time, the initiating unit balance level, the scheme simple description, the scheme plan starting time, the scheme ending time, the scheme point number and the unit needing response are pre-planned.
3. The method of claim 1, wherein in step (2), the responsive information comprises: scheme number, accepted scheme time, receiving unit, whether response is required, current work progress and current work progress profile.
4. The method according to claim 1, wherein in the step (2), if the unit of initiating the intra-day preplanning scheme is the national center, the method comprises the steps of:
step 2-1-1, creating a periodic scheme;
step 2-1-2, collecting the intra-day plan data reported by the regional center and the provincial scheduling center;
step 2-1-3, integrating whole network data, and issuing intra-day planning data to the differentiation center and the provincial dispatching center;
and 2-1-4, checking the whole network data, and if the checking calculation result meets the power grid operation safety constraint, switching the period scheme to the next period, otherwise, re-compiling the daily planning scheme.
5. The method according to claim 1, wherein in the step (2), if the unit of initiating the intra-day pre-planning scheme is the distinction center or the provincial scheduling center, the method comprises the steps of:
step 2-2-1, creating a periodic scheme;
step 2-2-2, receiving the intra-day planning data sent by the national center;
and 2-2-3, checking the daily technical data, if the checking calculation result meets the power grid operation safety constraint, switching the periodic scheme to the next period, and otherwise, compiling the daily prediction scheme.
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| Title |
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| 国分省三级日前发电计划静态安全校核;卢文平;《四川电力技术》;第37卷(第4期);图1，第1-3节 * |
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