CN112101799A - Standard state division method and device based on wind power plant data - Google Patents
Standard state division method and device based on wind power plant data Download PDFInfo
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Abstract
The invention discloses a standard state division method and device based on wind power plant data. The method comprises the following steps: acquiring data information of wind power plant production equipment according to a communication protocol; performing real-time and transaction real-time correlation processing on the data information to obtain real-time data; calculating the standard state of the real-time data to obtain the standard state of the wind power plant unit; and judging the 16 standard states of the actual operation of the fans according to the standard states of the wind power plant units. The invention can effectively solve the problem that multidimensional data comprehensively perfect the running state judgment of the whole unit under the condition of self state information loss, and provides a strict state division standard for the subsequent calculation of the operation index, so that managers can more accurately prepare scheduling production tasks, more reasonably distribute station resources, and further help the power grid to consume more wind power.
Description
Technical Field
The invention relates to the field of wind power plants, in particular to a standard state division method and device based on wind power plant data.
Background
Because different manufacturers of wind generating sets and different master control systems lead to diversified operation state index definitions of the fans. The centralized control operation and maintenance system cannot accurately judge the actual running state of the fan, and the state definition of related manufacturers is not suitable for the actual production operation management requirements.
Disclosure of Invention
The invention aims to provide a standard state division method and device based on wind power plant data, aiming at the dynamic change characteristic of a wind generating set, and carrying out detailed fan set state division and classification on fan states according to actual business requirements.
In order to achieve the purpose, the invention provides the following scheme:
a standard state division method based on wind power plant data comprises the following steps:
acquiring data information of wind power plant production equipment according to a communication protocol;
performing real-time and transaction real-time correlation processing on the data information to obtain real-time data;
calculating the standard state of the real-time data to obtain the standard state of the wind power plant unit;
and judging the 16 standard states of the actual operation of the fans according to the standard states of the wind power plant units.
Further, the 16 standard states of actual operation include a power grid affected state, an in-site affected state, a communication interruption state, a normal power generation state, a power-limited power generation state, a defective power generation state, a power-limited maintenance state, a fault maintenance state, a pre-maintenance state, a scheduled maintenance state, an environmental affected state, a fault shutdown state, a power-limited shutdown state, a manual shutdown state, a wind waiting state, and other states.
Further, the standard state of the actual operation of the fan is judged according to the standard state of the wind power plant unit, and the method specifically comprises the following steps:
judging whether the standard state of the wind power plant unit belongs to communication interruption or not;
if the judgment result indicates that the standard state of the wind power plant unit belongs to communication interruption, entering into an accumulated relevant state judgment calculation, checking a single machine signal of a data sending line of the booster station, if a combined signal CMPT _ Scx is displayed to be equal to 1, judging to be an electric network accumulated state, otherwise reading an in-field accumulated state signal error _ cnsl, if the combined signal error _ cnsl of the in-field accumulated signal is equal to 1, judging to be the in-field accumulated state, and if the split signal error _ cnsl of the in-field accumulated signal is equal to 0, judging to be the communication interruption state;
judging whether the standard state of the wind power plant unit belongs to an operation power generation state;
if the judgment result shows that the standard state belongs to the operation Power generation state, the Power generation related state judgment calculation is carried out, if a normal Power generation alarM CMPT _ Power _ alarM is equal to 1, the normal Power generation state is judged, otherwise, the Power limiting Power generation state or the Power generation state with the defect is judged, if a single machine Power limiting signal dj _ xianggulv is equal to 1, the Power limiting Power generation state is carried out, and if the single machine Power limiting signal dj _ xianggullv is equal to 0, the Power generation state with the defect is carried out;
judging whether the standard state of the wind power plant unit belongs to other states;
if the judgment result shows that the standard state of the wind power plant unit belongs to other states, judging whether the standard state of the wind power plant unit belongs to a maintenance state CMPT _ StandardStatus ═ 5, and if the standard state of the wind power plant unit simultaneously belongs to a single power limiting signal djxAninglv ═ 1, determining that the standard state of the wind power plant unit belongs to a power limiting and generating state; if the single machine power limiting signal dj _ xiangnglev is a simultaneous single machine power limiting signal dj _ xiangnglev which is equal to 0, judging whether the last state is a fault shutdown state, if so, judging the last state to be a fault maintenance state, and otherwise, judging the last state to be a previous maintenance state;
if the judgment result indicates that the standard state of the wind power plant unit belongs to other states CMPT _ StandardStatus ═ 3 and 4, judging whether a fan has a fault code, if so, judging a fault shutdown state, and if not, judging to be an environment affected state; if no fault code occurs, the split error _ hjsl of the environmental factor is equal to 0, and the single power limiting signal combined bit dj _ xianggullv is equal to 1, the power limiting shutdown state is determined; if no fault code occurs, the environmental factor branch error _ hjsl is equal to 0, and the single machine limit power signal branch dj _ xianglvi is equal to 0, the manual shutdown state is determined;
if the judgment result indicates that the standard state of the wind power plant unit belongs to the other state CMPT _ standard status ═ 2, and the previous state is pre-maintenance status _ last ═ 10, failure maintenance status _ last ═ 9, fixed inspection maintenance status _ last ═ 11, power limit maintenance status _ last ═ 8, failure stop status _ last ═ 6, power limit stop status _ last ═ 5, and manual stop status _ last ═ 7, the wind power plant unit is kept and judged as the previous state, otherwise, the wind power plant unit is judged as the standby state.
A standard state partitioning device based on wind farm data comprises: the system comprises a preposed acquisition server, a real-time library server and a calculation server which are connected in sequence;
the preposed acquisition server is used for acquiring data information of the wind power plant production equipment according to a communication protocol and outputting the data information to the real-time server;
the real-time server is used for performing real-time and transaction real-time correlation processing on the data information to obtain real-time data;
the calculation server is used for calculating the standard state of the real-time data to obtain the standard state of the wind power plant set; and judging the 16 standard states of the actual operation of the fans according to the standard states of the wind power plant units.
Further, the 16 standard states of actual operation include a power grid affected state, an in-site affected state, a communication interruption state, a normal power generation state, a power-limited power generation state, a defective power generation state, a power-limited maintenance state, a fault maintenance state, a pre-maintenance state, a scheduled maintenance state, an environmental affected state, a fault shutdown state, a power-limited shutdown state, a manual shutdown state, a wind waiting state, and other states.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the method and the device provided by the invention are combined with the state data of the whole unit, and the actual operation of the unit is accurately judged in real time. The problem that under the condition that self state information is lost, multidimensional data comprehensively improves the running state judgment of the whole unit, and provides a strict state division standard for the follow-up calculation of operation indexes is effectively solved, so that managers can more accurately prepare scheduling production tasks, the station resources are more reasonably distributed, and more wind power can be further consumed by a power grid.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a flow chart of a method for standard state partitioning based on wind farm data according to an embodiment of the present invention;
FIG. 2 is a calculation flow chart of a standard state partitioning method based on wind farm data according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a standard state division method and device based on wind power plant data, aiming at the dynamic change characteristic of a wind generating set, and carrying out detailed fan set state division and classification on fan states according to actual business requirements.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in FIG. 1, a standard state partitioning method based on wind farm data comprises the following steps:
step 101: and acquiring data information of the wind power plant production equipment according to a communication protocol.
Step 102: and performing real-time and transaction real-time correlation processing on the data information to obtain real-time data.
Step 103: and calculating the standard state of the real-time data to obtain the standard state of the wind power plant set.
Step 104: and judging the 16 standard states of the actual operation of the fans according to the standard states of the wind power plant units. The 16 standard states of actual operation comprise a power grid affected state, an in-site affected state, a communication interruption state, a normal power generation state, a power-limiting power generation state, a defective power generation state, a power-limiting maintenance state, a fault maintenance state, a prior maintenance state, a scheduled maintenance state, an environmental affected state, a fault shutdown state, a power-limiting shutdown state, a manual shutdown state, a wind waiting state and other states.
Wherein, step 104 specifically includes:
the main control of the fan resets and starts, and through the self-checking process, when no fault or manual operation action is confirmed, the fan enters a normal operation state:
when the looped network data link has a problem, the data return link is interrupted, and the data is not refreshed or has communication faults.
The power grid affected state: and judging the state of the circuit breaker of the wind power plant outgoing line, wherein the circuit breaker state is in a closed position, and the circuit breaker enters a power grid affected state due to the power grid affected.
The state of involvement in the field: so the circuit breaker is in off-state and the fan appears the interior state of being involved of scene and reports to the police the relevant point setting, gets into the interior state of being involved of scene.
Communication interruption state: if the power grid is not in the affected state, the communication interruption state is entered into the affected state in the field.
When the wind speed condition is met, the fan is in a fault-free state and is in a manual intervention state, the fan enters preparation work before starting grid connection, if the wind speed condition is met, the wind power generation grid connection stage is started, and after grid connection is successful, the wind power generation stage is started.
Normal power generation: the actual power is more than or equal to 80% of theoretical power, and no electricity-limiting mark is set.
Electricity limiting and power generation: the limited electrical identification is set.
Generating power with defects: actual power is less than 80% of theoretical power, and the limited electrical identifier is set.
When the fan is manually operated and maintained or fails, the fan enters a shutdown stage.
The electricity limiting maintenance state: the maintenance identification is set and the power limiting identification is set.
A fault maintenance state: the maintenance identification is set and the fault code is set.
A prior maintenance state: the maintenance flag is set and the last state is the failed shutdown state.
And (4) regularly checking the maintenance state: manual entry (manual intervention).
Environmental affected state: the maintenance flag is not set and the fault code is not set and the environmental status warning is set.
A fault shutdown state: the maintenance flag is not set and a fault code occurs.
And (3) power-limiting shutdown state: the maintenance identifier is not set, a fault code occurs, and the power limiting identifier is set.
A manual shutdown state: the maintenance flag is not set and no fault code is present.
When the fan is in a low wind speed, the fan is in a fault-free state and in a manual intervention state, the fan is in a wind waiting state.
Waiting for the wind state: the machine is not stopped and the wind speed does not meet the starting condition.
Other states: the above state does not occur.
The specific calculation flow is shown in fig. 2:
1. if the standard state is communication interruption (CMPT _ StandardStatus is 6), the system enters into the accumulated relevant state judgment calculation, a single machine signal of a booster station data sending line (CMPT _ Scx) is checked, and if a combined signal (CMPT _ Scx is 1), the system is judged to be accumulated. And if the combined signal is displayed (CMPT _ Scx is equal to 1), judging that the power grid is damaged. Otherwise, reading an intra-field accumulated state (error _ cnsl) signal, and if the intra-field accumulated signal (error _ cnsl ═ 1) is combined, judging that the intra-field is accumulated. If the signal (error _ cnsl ═ 0) is divided, the communication interruption state is determined.
2. And if the standard state is a running Power generation state (CMPT _ StandardStatus is equal to 1), the Power generation related state judgment calculation is carried out, and if a normal Power generation alarM (CMPT _ Power _ alarM is equal to 1), the normal Power generation is judged. Otherwise, the power generation is limited or the power generation with defects is judged. And if the single machine power limiting signal (dj _ xiangnglev ═ 1), the power limiting power generation state is established. And if the single power limiting signal (dj _ xiangnglev ═ 0), the power generation state with the defects is determined.
3. If the standard state is the other state (CMPT _ StandardStatus ═ 5), it is determined whether the standard state is the maintenance state (CMPT _ StandardStatus ═ 5), and if the stand-alone power limiting signal (dj _ xianggonlv ═ 1) is simultaneously present, it is the power-limiting power generation state. If the current state is the simultaneous single-machine power limiting signal (dj _ xianglvi ═ 0), judging whether the last state is the fault shutdown state (status _ last ═ 9, the fault shutdown state), if so, judging the fault maintenance state, otherwise, judging the pre-maintenance state.
4. If the standard state is other state (CMPT _ StandardStatus is 3,4), judging whether the fan has a fault code (Error1-8>0& & running state code >21), and if the fault code exists, judging the fault shutdown state.
If no fault code is present and the environmental factor (error _ hjsl ═ 1) is in place, then the environment-affected state is determined.
If no fault code exists and the environmental factor (error _ hjsl ═ 0) is divided and the single power-limiting signal (dj _ xianglvi ═ 1) is combined, the power-limiting shutdown state is determined.
If no fault code occurs and the environmental factor (error _ hjsl ═ 0) is divided, and the single threshold power signal (dj _ xianglvi ═ 0) is divided, the manual shutdown state is determined.
5. If the standard state is another state (CMPT _ standard status ═ 2), and the previous state is maintenance in advance (status _ last ═ 10), fault maintenance (status _ last ═ 9), regular maintenance (status _ last ═ 11), power-limited maintenance (status _ last ═ 8), fault shutdown (status _ last ═ 6), power-limited shutdown (status _ last ═ 5), and manual shutdown (status _ last ═ 7), the last state is determined to be maintained. Otherwise, judging to be in a standby state.
The state division of the fans 16 based on the full field data of the wind power plant can effectively convert the operation data into application data corresponding to actual services, greatly improve the application value of the data, and enable the wind power plant to have high service efficiency and accurate state.
The original master control PLC state of the wind power station fan is refined in the 16 standard state, and the state standard diversification and the technical specialization of each fan host manufacturer are avoided. The operation mode of the unit is visually expressed in the station monitoring process, and the 16 standard states divide the operation power generation state of an original host manufacturer into a normal power generation state, a power generation state with defects and a power limiting power generation state. The maintenance state of a host manufacturer is divided into pre-maintenance, fault maintenance and scheduled maintenance. The state of the fan can be looked up more intuitively, the abnormal generator set can be found in real time, the 16 standard states can directly position the actual production service scene of the related fan, the subsequent production tasks of operation and maintenance can be directly arranged according to the state judgment result, the associated data can be saved to be checked, the time of production service connection can be confirmed, the working service efficiency and the utilization rate of wind resources of the station can be improved, and the benefit of the station can be increased.
After the 16 standard states are refined, the wind field data information streams can be classified according to the states, and more accurate unit states are provided for services such as wind power plant loss calculation, report calculation and the like of subsequent data application.
The invention also provides a standard state division device based on wind power plant data, which comprises the following components: the system comprises a preposed acquisition server, a real-time library server and a calculation server which are connected in sequence.
The preposed acquisition server acquires real-time information (fan data, booster station data and manual input data) of the equipment according to a related communication protocol, and renames standard label points of related equipment names according to a computing platform and outputs the renamed equipment names to the real-time server.
The real-time server performs real-time and transaction real-time correlation processing on the data according to a time sequence and provides a real-time data calculation source;
the calculation server is used for calculating the standard state of the real-time data to obtain the standard state of the wind power plant set; and judging the 16 standard states of the actual operation of the fans according to the standard states of the wind power plant units.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (5)
1. A standard state division method based on wind power plant data is characterized by comprising the following steps:
acquiring data information of wind power plant production equipment according to a communication protocol;
performing real-time and transaction real-time correlation processing on the data information to obtain real-time data;
calculating the standard state of the real-time data to obtain the standard state of the wind power plant unit;
and judging the 16 standard states of the actual operation of the fans according to the standard states of the wind power plant units.
2. The method for standard state division based on wind farm data according to claim 1, wherein the 16 standard states of actual operation comprise a grid-affected state, a field-affected state, a communication-interrupted state, a normal power generation state, a power-limited maintenance state, a fault maintenance state, a prior maintenance state, a scheduled maintenance state, an environmental-affected state, a fault shutdown state, a power-limited shutdown state, a manual shutdown state, a wind-waiting state, and other states.
3. The method for dividing the standard state based on the wind farm data according to claim 1, wherein the judging of the standard state of the actual operation of the wind turbine according to the standard state of the wind farm unit specifically comprises:
judging whether the standard state of the wind power plant unit belongs to communication interruption or not;
if the judgment result indicates that the standard state of the wind power plant unit belongs to communication interruption, entering into an accumulated relevant state judgment calculation, checking a single machine signal of a data sending line of the booster station, if a combined signal CMPT _ Scx is displayed to be equal to 1, judging to be an electric network accumulated state, otherwise reading an in-field accumulated state signal error _ cnsl, if the combined signal error _ cnsl of the in-field accumulated signal is equal to 1, judging to be the in-field accumulated state, and if the split signal error _ cnsl of the in-field accumulated signal is equal to 0, judging to be the communication interruption state;
judging whether the standard state of the wind power plant unit belongs to an operation power generation state;
if the judgment result shows that the standard state belongs to the operation Power generation state, the Power generation related state judgment calculation is carried out, if a normal Power generation alarM CMPT _ Power _ alarM is equal to 1, the normal Power generation state is judged, otherwise, the Power limiting Power generation state or the Power generation state with the defect is judged, if a single machine Power limiting signal dj _ xianggulv is equal to 1, the Power limiting Power generation state is carried out, and if the single machine Power limiting signal dj _ xianggullv is equal to 0, the Power generation state with the defect is carried out;
judging whether the standard state of the wind power plant unit belongs to other states;
if the judgment result shows that the standard state of the wind power plant unit belongs to other states, judging whether the standard state of the wind power plant unit belongs to a maintenance state CMPT _ StandardStatus ═ 5, and if the standard state of the wind power plant unit simultaneously belongs to a single power limiting signal djxAninglv ═ 1, determining that the standard state of the wind power plant unit belongs to a power limiting and generating state; if the single machine power limiting signal dj _ xiangnglev is a simultaneous single machine power limiting signal dj _ xiangnglev which is equal to 0, judging whether the last state is a fault shutdown state, if so, judging the last state to be a fault maintenance state, and otherwise, judging the last state to be a previous maintenance state;
if the judgment result indicates that the standard state of the wind power plant unit belongs to other states CMPT _ StandardStatus ═ 3 and 4, judging whether a fan has a fault code, if so, judging a fault shutdown state, and if not, judging to be an environment affected state; if no fault code occurs, the split error _ hjsl of the environmental factor is equal to 0, and the single power limiting signal combined bit dj _ xianggullv is equal to 1, the power limiting shutdown state is determined; if no fault code occurs, the environmental factor branch error _ hjsl is equal to 0, and the single machine limit power signal branch dj _ xianglvi is equal to 0, the manual shutdown state is determined;
if the judgment result indicates that the standard state of the wind power plant unit belongs to the other state CMPT _ standard status ═ 2, and the previous state is pre-maintenance status _ last ═ 10, failure maintenance status _ last ═ 9, fixed inspection maintenance status _ last ═ 11, power limit maintenance status _ last ═ 8, failure stop status _ last ═ 6, power limit stop status _ last ═ 5, and manual stop status _ last ═ 7, the wind power plant unit is kept and judged as the previous state, otherwise, the wind power plant unit is judged as the standby state.
4. A standard state division device based on wind power plant data is characterized by comprising: the system comprises a preposed acquisition server, a real-time library server and a calculation server which are connected in sequence;
the preposed acquisition server is used for acquiring data information of the wind power plant production equipment according to a communication protocol and outputting the data information to the real-time server;
the real-time server is used for performing real-time and transaction real-time correlation processing on the data information to obtain real-time data;
the calculation server is used for calculating the standard state of the real-time data to obtain the standard state of the wind power plant set; and judging the 16 standard states of the actual operation of the fans according to the standard states of the wind power plant units.
5. The wind farm data-based standard state division device according to claim 4, wherein the 16 standard states of actual operation include a grid-affected state, a field-affected state, a communication-interrupted state, a normal power generation state, a power-limited maintenance state, a fault maintenance state, a prior maintenance state, a scheduled maintenance state, an environmental-affected state, a fault shutdown state, a power-limited shutdown state, a manual shutdown state, a wind-waiting state, and other states.
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