Direct dispatching wind power operation blocking checking and maintenance control system

Abstract

The invention relates to the technical field of wind power plant operation management, in particular to a direct dispatching wind power operation blocking checking and maintenance control system. Comprising the following system modules; a scheduling end wind power operation blocked power and blocked electric quantity calculation and verification function module; a master station end new energy blocking statistics and verification module; a new energy unit maintenance management function module; the system further comprises an interaction management module. According to the method, the estimated values of the wind power operation blocked power and the blocked electric quantity are calculated based on the index calculation formula, the estimated values are combined, the all-time and refined wind power available generated power checking mode of the master station end is achieved, an effective verification means except for an available power test is formed, and the result accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind farm operation management, and in particular to a direct-controlled wind power operation obstruction verification and maintenance control system. Background Art

[0002] At present, the built wind farm new energy stand-alone information system can realize wind farm data quality analysis, stand-alone non-stop statistics, wind energy resource assessment, theoretical available power calculation, wind farm absorption analysis, and data management functions, and has the initial ability to count, analyze, and check abnormal data for various types of wind farm data. At present, the operation and management of direct-controlled new energy have the following problems:

[0003] 1. Available power generation is accumulated from the reports of various wind farms. Due to the uneven reporting levels of various wind farms, there are problems of false or over-reporting of the amount of power abandoned. The master station lacks the automatic full-time, refined verification function and the verification method of available power spot check test, which affects the statistical deviation analysis of wind power blocked power and blocked power.

[0004] 2. The maintenance management of a single wind turbine still uses the traditional equipment maintenance ticket reporting, approval, start-up, and ticket settlement methods. Each wind farm reports according to the maintenance plan, and the dispatch of various professionals approves according to the process. The maintenance information of more than a thousand wind turbines has occupied a lot of manpower and time resources, and the traditional maintenance ticket statistics for wind turbines are inefficient and inconvenient, and it is not suitable for intuitively grasping the maintenance status of each wind farm, especially the automatic statistics of large-scale shutdown information in extreme weather is difficult.

[0005] 3. There is no professional reporting system for stations to handle model machine changes, funding reports and other businesses, and for dispatchers to conduct icing shutdown analysis, low-temperature disconnection and other surveys. Fixed-format files can only be uploaded and issued through the OMS system, and real-time communication and sharing of information only rely on Internet email, WeChat, etc., resulting in security and convenience issues in core data management.

[0006] 4. With the large-scale commissioning of new energy station units and the increasing demand for refined dispatching management, direct dispatching new energy information management faces challenges such as statistical analysis of massive single-machine data, identification and reconstruction of abnormal data, real-time interaction of information between the dispatching end and the station end, and frequent switching of wind turbine status due to maintenance or extreme weather that is not conducive to dispatching management. Summary of the invention

[0007] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a direct-controlled wind power operation obstruction verification and maintenance control system, which can solve the problem of wind farm operation management and improve the accuracy and efficiency of wind farm data statistics, analysis and management.

[0008] The specific technical solution adopted by the present invention is:

[0009] A direct-controlled wind power operation obstruction verification and maintenance control system includes the following system modules;

[0010] Dispatching-end wind power operation blocked power and blocked electricity calculation and verification function module: Based on the results of index calculation, the wind power operation blocked power and blocked electricity are calculated, and combined with the calculated values, a full-time and refined verification method of wind power available power generation at the master station is realized;

[0011] Master station-side new energy obstruction statistics and verification module: compares and compiles the obstruction power and electricity data calculated by the master station and reported by the station side, detects the error between the master station and the station side, realizes the statistics and verification functions of the data, and displays them in an intuitive interface;

[0012] New energy unit maintenance management function module: provides statistical functions to facilitate managers to intuitively understand the maintenance status of each wind farm. It has the function of wind farm data entry. Each wind farm fills in the information of wind turbines that need maintenance through the web page. It has the functions of filling in the maintenance information of wind turbines in each wind farm, storing data, and conducting statistical analysis based on the reported data;

[0013] Also included is an interaction management module.

[0014] The new energy unit maintenance management function module includes a wind farm side wind turbine maintenance information reporting module and a master station side interface display module;

[0015] The wind farm side wind turbine maintenance information reporting module is used by wind farm users to report and view their own data and information, as well as to report maintenance information. The maintenance information reporting content includes shutdown declaration, maintenance work content, planned start time, planned end time, actual start time and actual end time;

[0016] The interface display module on the main station side is used to view all wind turbine maintenance information of each wind farm, including information on reported, not started, started, and summary information on the number of shut down units.

[0017] The interactive management module includes a file interaction module and a station sample machine change module;

[0018] The file interaction module is used for the transmission of files between the station end and the dispatching end, and between the dispatching end and the station end, including issuing dispatching files to a single or part of the stations; and real-time communication between the dispatching end and the station end through text;

[0019] The station sample machine change module is used to change the sample machine information.

[0020] It also includes a power generation form module, which is used to publish and display in a table format through a web page. The displayed content covers: installed capacity of wind farms; installed units; generating units; generating capacity; suspended units; suspended capacity; real-time output; average wind speed; ambient temperature; wind farm limit; theoretical available power; and total network available power.

[0021] The blocked power and blocked electricity of wind power operation include the calculation of theoretical power and available power generation of wind farm, blocked electricity within wind farm and blocked electricity outside wind farm, and total grid electricity in the region.

[0022] The calculation of the theoretical power and available power generation of the wind farm includes the model machine method and the nacelle wind speed method;

[0023] (1) Sample machine method: Based on the selected sample machine, a mapping model between the sample machine output and the full-field output is established to obtain the full-field theoretical power generation, which is calculated as follows:

[0024]

[0025] Where P j is the theoretical power generation of wind farm j, P j ′ is the available power generation of wind farm j, k is the model number of wind turbine, K is the number of wind turbine models, M k is the number of prototypes of fan type k, N k is the total number of fans of model k in the field, N k ′ is the total number of fans of model k that are turned on and running, p j,k,m is the actual power of the mth prototype wind turbine of model j in the wind farm;

[0026] (2) Nacelle wind speed method: The wind speed measured in the wind turbine nacelle is converted into the theoretical power generation of a single unit by using the fitted wind speed-power curve, and then the theoretical power generation of the whole field is obtained. The calculation is as follows:

[0027] 1) The wind speed-power curve fitted by the average wind speed in the nacelle and the average power of a single unit is used to convert the wind speed in the nacelle into the theoretical power generation power p of the wind turbine j,m ,The wind speed-power curve needs to be provided by the user according to the wind turbine type;

[0028] 2) The theoretical power generation of the wind farm is obtained by adding up the theoretical power generation of each unit:

[0029]

[0030] 3) Available power generation of wind farm:

[0031]

[0032] Where Pj is the theoretical power generation of wind farm j, Pj ′ is the available power generation capacity of wind farm j, M is the number of wind turbines in the farm, M′ is the number of wind turbines that are not shut down due to power restriction, and p j,m is the theoretical power generation of the mth wind turbine in wind farm j.

[0033] The calculation method of the blocked electricity in the wind farm and the blocked electricity outside the wind farm is as follows:

[0034] (1) The amount of electricity blocked within the wind farm:

[0035]

[0036] (2) The amount of electricity blocked outside the wind farm:

[0037]

[0038] In the formula, E I,j is the blocked power in wind farm j, E O,j is the blocked power outside wind farm j, P j,i is the theoretical power generation of wind farm j at time i, P j,i ′ is the available power generation of wind farm j at time i, T j,i is the actual power generated by wind farm j at time i, n is the number of samples in the statistical period, and Δt is the time resolution.

[0039] The total power of the regional network includes the theoretical power generation of the whole network, the available power generation of the whole network, the blocked power in the field of the whole network, the blocked power of the section of the whole network, and the blocked power of the peak load regulation of the whole network. The calculation method is as follows:

[0040] (1) Theoretical power generation of the entire network:

[0041] The theoretical power generation of all grid-connected wind farms in the grid is summed up to get:

[0042]

[0043] In the formula, P is the theoretical power generation of the entire grid, Pj is the theoretical power generation of wind farm j, and N is the number of all grid-connected wind farms in the grid;

[0044] (2) Available power generation capacity of the entire network:

[0045] Based on the sum of the available power of all grid-connected wind farms in the grid, the available power after considering the section constraints is:

[0046] 1) Small section calculation method:

[0047] R j =min(Q j ,P j `)

[0048] In the formula, R j is the available power of the jth small section of the wind power plant, Q j is the limit of the small section of wind farm j, P j ′ is the available power generation of wind farm j;

[0049] 2) Calculation of available power

[0050] When regional wind power participates in peak load regulation,

[0051]

[0052] In the formula, p' is the available power of the whole grid, Q' is the maximum cross-section limit of Ximeng wind power, n is the number of wind farms in Ximeng grid, R j is the available power of the jth small section of the wind power plant;

[0053] When regional wind power does not participate in peak load regulation,

[0054]

[0055] In the formula, p' is the available power of the whole grid, n is the number of wind farms in Ximeng grid, P j is the actual power of wind power plant j;

[0056] (3) Power blocked in the whole grid:

[0057] The blocked power in the whole grid is obtained by accumulating the blocked power in all grid-connected wind farms in the grid:

[0058]

[0059] The blocked power in the whole grid is obtained through the blocked power points in the whole grid:

[0060]

[0061] In the formula, ΔP I The blocked power in the whole grid, E I is the blocked power in the whole network, E I,j is the blocked power in wind farm j, n is the number of samples in the statistical period, Δt is the time resolution, and N is the number of wind farms connected to the grid;

[0062] (4) Power supply blocked in all sections of the network:

[0063] The blocked power of the whole grid section is obtained by subtracting the available power generation of the whole grid from the sum of the available power generation of all wind farms:

[0064]

[0065] The blocked power of the whole network section is obtained through the blocked power points of the whole network section:

[0066]

[0067] In the formula, ΔP G is the blocked power of the whole network section, ΔP G,i is the blocked power of the whole network section at the i-th moment, E G is the blocked electricity of the whole network section, n is the number of samples in the statistical period, and Δt is the time resolution;

[0068] (5) Power supply that is blocked during peak load regulation of the entire network:

[0069] The power blocked by the peak load regulation of the whole network is the difference between the available power generation of the whole network and the actual power generation:

[0070]

[0071] The power blocked by the whole network peak load regulation is obtained through the power points blocked by the whole network peak load regulation:

[0072]

[0073] In the formula, ΔP S The power blocked by the whole network peak load regulation, ΔP S,i is the peak load-shaving power blocked in the entire network at the i-th moment, E S is the amount of electricity blocked from peak load regulation in the entire network, T j is the actual power generated by wind farm j, n is the number of samples in the statistical period, Δt is the time resolution, and N is the number of wind farms connected to the grid.

[0074] The beneficial effects of the present invention are:

[0075] The present invention calculates the estimated values ​​of the blocked power and blocked electricity of wind power operation based on the indicator calculation formula, and combines the estimated values ​​to realize a full-time and refined verification method of the available wind power generation power at the master station end, forming an effective verification method in addition to the available power test, thereby improving the accuracy of the results. DETAILED DESCRIPTION

[0076] The present invention will be further described below in conjunction with specific embodiments:

[0077] The present invention is a direct-controlled wind power operation obstruction verification and maintenance control system, comprising the following system modules;

[0078] Dispatching-end wind power operation blocked power and blocked electricity calculation and verification function module: Based on the results of index calculation, the wind power operation blocked power and blocked electricity are calculated, and combined with the calculated values, a full-time and refined verification method of wind power available power generation at the master station is realized;

[0079] Master station-side new energy obstruction statistics and verification module: compares and compiles the obstruction power and electricity data calculated by the master station and reported by the station side, detects the error between the master station and the station side, realizes the statistics and verification functions of the data, and displays them in an intuitive interface;

[0080] New energy unit maintenance management function module: provides statistical functions to facilitate managers to intuitively understand the maintenance status of each wind farm. It has the function of wind farm data entry. Each wind farm fills in the information of wind turbines that need maintenance through the web page. It has the functions of filling in the maintenance information of wind turbines in each wind farm, storing data, and conducting statistical analysis based on the reported data;

[0081] Also included is an interaction management module.

[0082] The new energy unit maintenance management function module includes a wind farm side wind turbine maintenance information reporting module and a master station side interface display module;

[0083] The wind farm side wind turbine maintenance information reporting module is used by wind farm users to report and view their own data and information, as well as to report maintenance information. The maintenance information reporting content includes shutdown declaration, maintenance work content, planned start time, planned end time, actual start time and actual end time;

[0084] The interface display module on the main station side is used to view all wind turbine maintenance information of each wind farm, including information on reported, not started, started, and summary information on the number of shut down units.

[0085] The interactive management module includes a file interaction module and a station sample machine change module;

[0086] The file interaction module is used for the transmission of files between the station end and the dispatching end, and between the dispatching end and the station end, including issuing dispatching files to a single or part of the stations; and real-time communication between the dispatching end and the station end through text;

[0087] The station sample machine change module is used to change the sample machine information.

[0088] It also includes a power generation form module, which is used to publish and display in a table format through a web page. The displayed content covers: installed capacity of wind farms; installed units; generating units; generating capacity; suspended units; suspended capacity; real-time output; average wind speed; ambient temperature; wind farm limit; theoretical available power; and total network available power.

[0089] The blocked power and blocked electricity of wind power operation include the calculation of theoretical power and available power generation of wind farm, blocked electricity within wind farm and blocked electricity outside wind farm, and total grid electricity in the region.

[0090] Based on the results of the index calculation, the blocked power and blocked electricity of wind power operation are calculated, and combined with the calculated values, a full-time and refined verification method of the available wind power at the master station is realized, forming an effective verification method in addition to the available power test. At the same time, during the available power test of the wind farm, the available power changes caused by wind speed are compensated, which improves the accuracy of the results.

[0091] The calculation of the theoretical power and available power generation of the wind farm includes the model machine method and the nacelle wind speed method;

[0092] (1) Sample machine method: Based on the selected sample machine, a mapping model between the sample machine output and the full-field output is established to obtain the full-field theoretical power generation, which is calculated as follows:

[0093]

[0094] Where P j is the theoretical power generation of wind farm j, P j ′ is the available power generation of wind farm j, k is the model number of wind turbine, K is the number of wind turbine models, M k is the number of prototypes of fan type k, N k is the total number of fans of model k in the field, N k ′ is the total number of fans of model k that are turned on and running, p j,k,m is the actual power of the mth prototype wind turbine of model j in the wind farm;

[0095] (2) Nacelle wind speed method: The wind speed measured in the wind turbine nacelle is converted into the theoretical power generation of a single unit by using the fitted wind speed-power curve, and then the theoretical power generation of the whole field is obtained. The calculation is as follows:

[0096] 1) The wind speed-power curve fitted by the average wind speed in the nacelle and the average power of a single unit is used to convert the wind speed in the nacelle into the theoretical power generation power p of the wind turbine j,m ,The wind speed-power curve needs to be provided by the user according to the wind turbine type;

[0097] 2) The theoretical power generation of the wind farm is obtained by adding up the theoretical power generation of each unit:

[0098]

[0099] 3) Available power generation of wind farm:

[0100]

[0101] Where Pj is the theoretical power generation of wind farm j, P j′ is the available power generation of wind farm j, M is the number of wind turbines in the whole farm, M′ is the number of wind turbines that are not shut down due to power restriction (AGC instruction>0 non-power restriction (wind farm needs to collect NARI) & single machine (wind speed>3 power<0.1) shutdown), p j,m is the theoretical power generation of the mth wind turbine in wind farm j.

[0102] The calculation method of the blocked electricity in the wind farm and the blocked electricity outside the wind farm is as follows:

[0103] (1) The amount of electricity blocked within the wind farm:

[0104]

[0105] (2) The amount of electricity blocked outside the wind farm:

[0106]

[0107] In the formula, E I,j is the blocked power in wind farm j, E O,j is the blocked power outside wind farm j, P j,i is the theoretical power generation of wind farm j at time i, P j,i ′ is the available power generation of wind farm j at time i, T j,i is the actual power generated by wind farm j at time i, n is the number of samples in the statistical period, and Δt is the time resolution.

[0108] The total power of the regional network includes the theoretical power generation of the whole network, the available power generation of the whole network, the blocked power in the field of the whole network, the blocked power of the section of the whole network, and the blocked power of the peak load regulation of the whole network. The calculation method is as follows:

[0109] (1) Theoretical power generation of the entire network:

[0110] The theoretical power generation of all grid-connected wind farms in the grid is summed up to get:

[0111]

[0112] In the formula, P is the theoretical power generation of the entire grid, Pj is the theoretical power generation of wind farm j, and N is the number of all grid-connected wind farms in the grid;

[0113] (2) Available power generation capacity of the entire network:

[0114] Based on the sum of the available power of all grid-connected wind farms in the grid, the available power after considering the section constraints is:

[0115] 1) Small section calculation method:

[0116] R j＝min( Q j ,P j `)

[0117] In the formula, R j is the available power of the jth small section of the wind power plant, Q j is the limit of the small section of wind farm j, P j ′ is the available power generation of wind farm j;

[0118] 2) Calculation of available power

[0119] When regional wind power participates in peak load regulation,

[0120]

[0121] In the formula, p' is the available power of the whole grid, Q' is the maximum cross-section limit of Ximeng wind power, n is the number of wind farms in Ximeng grid, R j is the available power of the jth small section of the wind power plant;

[0122] When regional wind power does not participate in peak load regulation,

[0123]

[0125] In the formula, is the available power generation of the whole grid, n is the number of wind farms in Ximeng grid, P j is the actual power of wind power plant j;

[0126] (3) Power blocked in the whole grid:

[0127] The blocked power in the whole grid is obtained by accumulating the blocked power in all grid-connected wind farms in the grid:

[0128]

[0129] The blocked power in the whole grid is obtained through the blocked power points in the whole grid:

[0130]

[0131] In the formula, ΔP I The blocked power in the whole grid, E I is the blocked power in the whole network, E I,j is the blocked power in wind farm j, n is the number of samples in the statistical period, Δt is the time resolution, and N is the number of wind farms connected to the grid;

[0132] (4) Power supply blocked in all sections of the network:

[0133] The blocked power of the whole grid section is obtained by subtracting the available power generation of the whole grid from the sum of the available power generation of all wind farms:

[0134]

[0135] The blocked power of the whole network section is obtained through the blocked power points of the whole network section:

[0136]

[0137] In the formula, ΔP G is the blocked power of the whole network section, ΔP G,i is the blocked power of the whole network section at the i-th moment, E G is the blocked electricity of the whole network section, n is the number of samples in the statistical period, and Δt is the time resolution;

[0138] (5) Power supply that is blocked during peak load regulation of the entire network:

[0139] The power blocked by the peak load regulation of the whole network is the difference between the available power generation of the whole network and the actual power generation:

[0140]

[0141] The power blocked by the whole network peak load regulation is obtained through the power points blocked by the whole network peak load regulation:

[0142]

[0143] In the formula, ΔP S The power blocked by the whole network peak load regulation, ΔP S,i is the peak load-shaving power blocked in the entire network at the i-th moment, E S is the amount of electricity blocked from peak load regulation in the entire network, T j is the actual power generated by wind farm j, n is the number of samples in the statistical period, Δt is the time resolution, and N is the number of wind farms connected to the grid.

[0144] Taking Ximeng wind power as an example (1) Wind power plant operation data: actual power generation of the wind farm (from Jincang database), blocked power inside the wind farm (calculated), blocked power outside the wind farm (calculated), blocked electricity inside the wind farm (calculated), blocked electricity outside the wind farm (calculated), small section limit of the wind farm (from Jincang database), available power of the wind farm (calculated), and nacelle wind speed (from single machine data).

[0145] (2) Network operation data: actual power generation of wind power in Ximeng network (original name: actual power of the network) (from Jincang database), theoretical power of wind power in Ximeng network (calculated), available power of wind power in Ximeng network (calculated), blocked power outside wind farms in Ximeng network (calculated), blocked power inside wind farms in Ximeng network (calculated), blocked power for peak load regulation of wind power in Ximeng network (calculated), and large-section limit of wind power in Ximeng network (calculated).

[0146] AGC command value (wind farm needs to collect NARI) single machine (wind speed>3 power<0.1) shutdown.

[0147] For the 35 wind farms directly dispatched by Ximeng League, we carried out operation obstruction verification, maintenance management function transformation, and information interaction development between stations and dispatching ends, improved the statistics, analysis, and management functions of direct-dispatched new energy data, increased the efficiency of information interaction between stations and dispatching master stations, and improved the level of new energy dispatching management.

[0148] (1) Build a blockage power verification module for Ximeng direct dispatch of new energy stations. This includes calculation of the blockage power and blocked electricity of 35 wind farm main stations, and compare and analyze the blockage power and blocked electricity reported by the stations, effectively verifying the accuracy of the available power reported by the wind farms.

[0149] (2) Build a maintenance management module for new energy units directly dispatched by Ximeng League. This includes maintenance reporting, maintenance ticket management, shutdown statistics, and historical query functions to effectively grasp the maintenance and shutdown dynamics of wind farm units.

[0150] (3) Build a new energy information interaction management module for Ximeng direct dispatch, including station model machine change management, dispatch master station professional research management, file upload and download, and file group sending and receiving functions, to improve the efficiency of information exchange and information statistics.

[0151] (4) Develop the Ximeng new energy power generation form interface display function, including centralized display of the status, output and other information of all direct-controlled new energy units.

[0152] Involved measuring points:

[0153] Blocked power, blocked quantity measurement point data, blocked area;

[0154] The blocked power and blocked electricity reported by the station (the reported data are based on the data in the Jincang database).

[0155] Deviation curve: Obstructed power calculated from the obstructed power curve at the station

[0156] Calculation logic of obstructed large and small sections:

[0157] 1) Available power is less than the small section limit

[0158] When the available power is less than the small section limit, the small section power abandonment is 0. Large section blocked power = available power - actual power

[0159] 2) Available power is greater than the small section limit

[0160] When the available power is greater than the small section limit, the small section blocked power = available power - small section limit. Large section blocked power = small section limit - actual power

[0161] Based on the system of the present invention, each wind farm reports the information of the wind turbines that need to be repaired through a web page, and has the functions of reporting the repair information of the wind turbines in each wind farm, storing data, and performing statistical analysis based on the reported data.

[0162] It is capable of storing and counting data, and through an intuitive human-machine interface and automatic statistical charts, it is convenient for dispatchers to quickly check and understand information such as wind turbine maintenance in each wind farm, the proportion of maintained units, and year-on-year data.

[0163] The dispatching end page of the present invention has a permission management function. It can provide an overview of all wind farms or view the wind turbine maintenance report information of a certain wind farm separately. It can query the wind turbine maintenance report information of all or a certain wind farm within a specified time period through a custom time period.

[0164] The new energy power generation form module of the present invention includes information such as the installed capacity of each wind farm, installed units, generating units, generating capacity, suspended units, suspended capacity, real-time output, average wind speed, ambient temperature, wind farm limit, theoretical available power, and total network available power.

[0165] 1) Wind farm part:

[0166] Installed capacity; installed units; generating units; generating capacity; generating units shut down; shut down capacity; ambient temperature; average wind speed; wind farm limit; wind farm output

[0167] Installed capacity: fixed value, provided by scheduling;

[0168] Installation times: fixed value, provided by scheduling;

[0169] Generating frequency: power>0 generating;

[0170] Power generation capacity: the sum of installed capacity of units with power > 0

[0171] Stop sending times: Power <= 0

[0172] Suspended capacity: the sum of installed capacity of units with power <= 0

[0173] Ambient temperature; average value of two wind towers at each station;

[0174] Average wind speed: wind tower hub height (hub height of two wind towers)

[0175] Wind farm limit: wind farm limit value (already collected in Jincang database)

[0176] Wind farm output: the actual power generation of the wind farm (already collected by Jincang database)

[0177] 2) Unit part:

[0178] According to the power, its power generation status is displayed in color and divided into 3 intervals.

[0179] Stop: Power = 0

[0180] Output: 0>-10%; 10%-30%; 30%-50%; 50%-70%; 70%-100%

[0181] Calculation: Power / installed capacity*100%

[0182] Statistics function: For the station part, according to the selected time period, the maximum value of the station parameters within the period is counted. Click on the specific value to display the trend within the selected time period.

Claims

1. A direct wind power operation obstruction verification and maintenance control system, Features: Includes the following system modules; Dispatching-end wind power operation blocked power and blocked electricity calculation and verification function module: Based on the results of index calculation, the wind power operation blocked power and blocked electricity are calculated, and combined with the calculated values, a full-time and refined verification method of wind power available power generation at the master station is realized; Master station-side new energy obstruction statistics and verification module: compares and compiles the obstruction power and electricity data calculated by the master station and reported by the station side, detects the error between the master station and the station side, realizes the statistics and verification functions of the data, and displays them in an intuitive interface; New energy unit maintenance management function module: provides statistical functions to facilitate managers to intuitively understand the maintenance status of each wind farm. It has the function of wind farm data entry. Each wind farm fills in the information of wind turbines that need maintenance through the web page. It has the functions of filling in the maintenance information of wind turbines in each wind farm, storing data, and conducting statistical analysis based on the reported data; Also included is an interaction management module.

2. According to the direct-controlled wind power operation obstruction verification and maintenance control system of claim 1, Features: The new energy unit maintenance management function module includes a wind farm side wind turbine maintenance information reporting module and a master station side interface display module; The wind farm side wind turbine maintenance information reporting module is used by wind farm users to report and view their own data and information, as well as to report maintenance information. The maintenance information reporting content includes shutdown declaration, maintenance work content, planned start time, planned end time, actual start time and actual end time; The interface display module on the main station side is used to view all wind turbine maintenance information of each wind farm, including information on reported, not started, started, and summary information on the number of shut down units.

3. According to the direct wind power operation obstruction verification and maintenance control system of claim 1, Features: The interactive management module includes a file interaction module and a station sample machine change module; File interaction module, used for file transmission between the station end and the dispatching end, and between the dispatching end and the station end, including issuing dispatching files to a single station or part of the stations; And the dispatching end and the station end communicate in real time through text; The station sample machine change module is used to change the sample machine information.

4. According to the direct wind power operation obstruction verification and maintenance control system of claim 1, Features: It also includes a power generation form module, which is used to publish and display in a table format through a web page. The displayed content covers: installed capacity of wind farms; installed units; generating units; generating capacity; suspended units; suspended capacity; real-time output; average wind speed; ambient temperature; wind farm limit; theoretical available power; and total network available power.

5. According to the direct wind power operation obstruction verification and maintenance control system of claim 1, Features: The blocked power and blocked electricity of wind power operation include the calculation of theoretical power and available power generation of wind farm, blocked electricity within wind farm and blocked electricity outside wind farm, and total grid electricity in the region.

6. According to claim 5, the direct-controlled wind power operation obstruction verification and maintenance control system, Features: The calculation of the theoretical power and available power generation of the wind farm includes the model machine method and the nacelle wind speed method; (1) Sample machine method: Based on the selected sample machine, a mapping model between the sample machine output and the full-field output is established to obtain the full-field theoretical power generation, which is calculated as follows: Where P j is the theoretical power generation of wind farm j, P j ′ is the available power generation of wind farm j, k is the model number of wind turbine, K is the number of wind turbine models, M k is the number of prototypes of fan type k, N k is the total number of fans of model k in the field, N′ k is the total number of fans of model k that are turned on and running, p j,k,m is the actual power of the mth prototype wind turbine of model j in the wind farm; (2) Nacelle wind speed method: The wind speed measured in the wind turbine nacelle is converted into the theoretical power generation of a single unit by using the fitted wind speed-power curve, and then the theoretical power generation of the whole field is obtained. The calculation is as follows: 1) The wind speed-power curve fitted by the average wind speed in the nacelle and the average power of a single unit is used to convert the wind speed in the nacelle into the theoretical power generation power p of the wind turbine j,m ,The wind speed-power curve needs to be provided by the user according to the wind turbine type; 2) The theoretical power generation of the wind farm is obtained by adding up the theoretical power generation of each unit: 3) Available power generation of wind farm: Where Pj is the theoretical power generation of wind farm j, P j ′ is the available power generation capacity of wind farm j, M is the number of wind turbines in the farm, M′ is the number of wind turbines that are not shut down due to power restriction, and p j,m is the theoretical power generation of the mth wind turbine in wind farm j.

7. According to claim 5, the direct-controlled wind power operation obstruction verification and maintenance control system, Features: The calculation method of the blocked electricity in the wind farm and the blocked electricity outside the wind farm is as follows: (1) The amount of electricity blocked within the wind farm: (2) The amount of electricity blocked outside the wind farm: In the formula, E I,j is the blocked power in wind farm j, E O,j is the blocked power outside wind farm j, P j,i is the theoretical power generation of wind farm j at time i, P j,i ′ is the available power generation of wind farm j at time i, T j,i is the actual power generated by wind farm j at time i, n is the number of samples in the statistical period, and Δt is the time resolution.

8. According to claim 5, the direct-controlled wind power operation obstruction verification and maintenance control system, Features: The total power of the regional network includes the theoretical power generation of the whole network, the available power generation of the whole network, the blocked power in the field of the whole network, the blocked power of the section of the whole network, and the blocked power of the peak load regulation of the whole network. The calculation method is as follows: (1) Theoretical power generation of the entire network: The theoretical power generation of all grid-connected wind farms in the grid is summed up to get: In the formula, P is the theoretical power generation of the entire grid, Pj is the theoretical power generation of wind farm j, and N is the number of all grid-connected wind farms in the grid; (2) Available power generation capacity of the entire network: Based on the sum of the available power of all grid-connected wind farms in the grid, the available power after considering the section constraints is: 1) Small section calculation method: R j = min (Q j ,P j `) In the formula, R j is the available power of the jth small section of the wind power plant, Q j is the limit of the small section of wind farm j, P j ′ is the available power generation of wind farm j; 2) Calculation of available power When regional wind power participates in peak load regulation, In the formula, p' is the available power of the whole grid, Q' is the maximum cross-section limit of Ximeng wind power, n is the number of wind farms in Ximeng grid, R j is the available power of the jth small section of the wind power plant; When regional wind power does not participate in peak load regulation, In the formula, is the available power generation of the whole grid, n is the number of wind farms in Ximeng grid, P j is the actual power of wind power plant j; (3) Power blocked in the entire grid: The blocked power in the whole grid is obtained by accumulating the blocked power in all grid-connected wind farms in the grid: The blocked power in the whole grid is obtained through the blocked power points in the whole grid: Where ΔP I The blocked power in the whole grid, E I is the blocked power in the whole network, E I,j is the blocked power in wind farm j, n is the number of samples in the statistical period, Δt is the time resolution, and N is the number of wind farms connected to the grid; (4) Power supply blocked in all sections of the network: The blocked power of the whole grid section is obtained by subtracting the available power generation of the whole grid from the sum of the available power generation of all wind farms: The blocked power of the whole network section is obtained through the blocked power points of the whole network section: Where ΔP G is the blocked power of the whole network section, ΔP G,i is the blocked power of the whole network section at the i-th moment, E G is the blocked electricity of the whole network section, n is the number of samples in the statistical period, and Δt is the time resolution; (5) Power supply that is blocked during peak load regulation of the entire network: The power blocked by the peak load regulation of the whole network is the difference between the available power generation of the whole network and the actual power generation: The power blocked by the peak load regulation of the whole network is obtained through the power points blocked by the peak load regulation of the whole network: Where ΔP S The power blocked by the whole network peak load regulation, ΔP S,i is the peak load-shaving power blocked in the entire network at the i-th moment, E S is the amount of electricity blocked from peak load regulation in the entire network, T j is the actual power generated by wind farm j, n is the number of samples in the statistical period, Δt is the time resolution, and N is the number of wind farms connected to the grid.

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