CN116608136A - Medium-voltage variable-frequency control system of submersible electric pump - Google Patents
Medium-voltage variable-frequency control system of submersible electric pump Download PDFInfo
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- CN116608136A CN116608136A CN202310863645.7A CN202310863645A CN116608136A CN 116608136 A CN116608136 A CN 116608136A CN 202310863645 A CN202310863645 A CN 202310863645A CN 116608136 A CN116608136 A CN 116608136A
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- 238000006243 chemical reaction Methods 0.000 claims description 14
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- 238000010223 real-time analysis Methods 0.000 abstract description 4
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- 239000010779 crude oil Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
Abstract
The invention belongs to the technical field of supervision of an electric submersible pump, in particular to a medium-voltage variable-frequency control system of the electric submersible pump, which comprises a processor, a starting monitoring analysis module, a fault detection regulation module, an operation regulation summary module and an electric pump operation early-warning module; the method monitors the starting process of the electric submersible pump in the starting period, judges whether the starting regulation and control of the corresponding electric submersible pump are qualified or not through analysis, achieves real-time detection and analysis of the starting period of the electric submersible pump, judges the fault detection of the electric submersible pump and conducts medium-voltage variable frequency control in the operation process of the electric submersible pump, judges whether the regulation and control operation is qualified or not through analysis when the corresponding regulation and control operation is conducted, analyzes the regulation and control operation condition of the electric submersible pump in the monitoring manifold total period, achieves effective combination of fault abnormality detection and judgment, operation regulation and control and follow-up regulation and control effect analysis, reduces the operation risk of the electric submersible pump, prolongs the service life of the electric submersible pump, and enables the electric submersible pump to operate safely and efficiently.
Description
Technical Field
The invention relates to the technical field of supervision of an electric submersible pump, in particular to a medium-voltage variable-frequency control system of the electric submersible pump.
Background
The submersible electric pump is a multistage centrifugal pump, each stage consists of a rotating impeller and a fixed guide wheel, the impellers float and compress, the structure of the impellers determines the displacement of the pump, the number of stages of the impellers determines the lift of the pump, a submersible motor in an oil well transmits mechanical energy to the submersible pump, and the impellers in the submersible pump rotate at a high speed to pump crude oil from the well to a ground oil collecting system;
at present, when the medium-voltage variable frequency control is carried out on the electric submersible pump, effective detection and evaluation on the starting stage of the electric submersible pump are difficult to realize, detection and judgment of fault abnormality, operation regulation and control and subsequent regulation and control effect analysis cannot be combined in the operation process of the electric submersible pump, effective management of the electric submersible pump is difficult to timely and pertinently carry out, and the electric submersible pump is not beneficial to reducing the operation risk and prolonging the service life of the electric submersible pump;
in view of the above technical drawbacks, a solution is now proposed.
Disclosure of Invention
The invention aims to provide a medium-voltage variable-frequency control system of an electric submersible pump, which solves the problems that the effective detection and evaluation of the starting stage of the electric submersible pump are difficult to realize in the prior art, the detection and judgment of fault abnormality, operation regulation and control and subsequent regulation and control effect analysis cannot be combined in the operation process of the electric submersible pump, the operation risk of the electric submersible pump is not reduced, the service life of the electric submersible pump is prolonged, and the efficient and safe operation of the electric submersible pump is difficult to ensure.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the medium-voltage variable-frequency control system of the electric submersible pump comprises a processor, a starting monitoring analysis module, a fault detection regulation module, an operation regulation summarizing module and an electric pump operation early warning module; the starting monitoring analysis module is used for monitoring the starting process of the starting period of the electric submersible pump when the electric submersible pump is started, judging whether the starting regulation of the corresponding electric submersible pump is qualified through analysis, generating a starting abnormal signal when judging that the starting regulation of the corresponding electric submersible pump is unqualified, sending the starting abnormal signal to the electric pump operation early warning module through the server, and sending out corresponding early warning when the electric pump operation early warning module receives the starting abnormal signal so as to remind a corresponding manager to pause the operation of the electric submersible pump in time and carry out inspection and maintenance;
the fault detection regulation module is used for carrying out fault detection judgment on the submersible electric pump in the operation process of the submersible electric pump so as to find and determine the fault abnormality type and carry out medium-voltage variable frequency control, judging whether the regulation operation is qualified through analysis when the corresponding regulation operation is carried out, adding and storing the times of qualified regulation when the regulation operation is judged to be qualified, adding and storing the times of unqualified regulation when the regulation operation is judged to be unqualified, and sending the regulation operation judgment result to the operation regulation summarizing module through the server; the operation regulation and control summarizing module is used for setting a regulation and control summarizing period in the operation process of the submersible electric pump, analyzing the regulation and control operation conditions of the corresponding submersible electric pump in the monitoring manifold summarizing period, generating a regulation and control early warning signal or a regulation and control normal signal through analysis, sending the regulation and control early warning signal to the electric pump operation early warning module through the server, and sending out corresponding early warning when the electric pump operation early warning module receives the regulation and control early warning signal so as to remind a corresponding manager to timely pause the operation of the submersible electric pump and carry out inspection and maintenance.
Further, the specific operation process of starting the monitoring and analyzing module comprises the following steps:
when the electric submersible pump is started, the pressure judgment value and the flow judgment value of the electric submersible pump in the starting period are obtained through time-sharing point detection analysis, the pressure judgment value and the flow judgment value are respectively compared with a preset pressure judgment threshold value and a preset flow judgment threshold value, if the pressure judgment value does not exceed the preset pressure judgment threshold value and the flow judgment value does not exceed the preset flow judgment threshold value, the starting regulation is judged to be qualified, and otherwise, a starting abnormal signal is generated.
Further, the specific analysis process of the time-sharing point detection analysis is as follows:
setting a plurality of groups of detection time points in the starting period of the submersible electric pump, marking the detection time points as i, wherein i is a natural number larger than 1, collecting the voltage and the current of the submersible electric pump at the detection time point i, performing difference calculation on the voltage of two adjacent groups of detection time points to obtain a voltage rise value, performing difference calculation on the current of two adjacent groups of detection time points to obtain a current rise value, marking the voltage rise value exceeding a preset voltage rise threshold as a high voltage value, and marking the current rise value exceeding the preset current rise threshold as a high current value;
the method comprises the steps of carrying out difference value calculation on a high-pressure value and a preset pressure rise threshold value to obtain a pressure difference value, carrying out difference value calculation on the high-pressure value and the preset pressure rise threshold value to obtain a flow difference value, carrying out summation calculation on all pressure difference values to obtain a pressure difference sum value, carrying out summation calculation on all flow difference values to obtain a flow difference sum value, carrying out ratio calculation on the number of the high-pressure values and the number of the pressure rise values to obtain a pressure ratio value, carrying out numerical calculation on the pressure ratio value and the pressure difference sum value to obtain a pressure judgment value, and carrying out numerical calculation on the flow ratio value and the flow difference sum value to obtain a flow judgment value.
Further, the specific operation process of the operation fault detection and control module comprises the following steps:
during the operation process of the submersible electric pump, the operation condition of the submersible electric pump is collected, whether corresponding fault abnormality exists or not is judged based on a fault judging model, when overvoltage is judged, automatic voltage stabilization treatment is carried out through medium-voltage variable frequency control, when undervoltage is judged, automatic frequency reduction treatment is carried out through medium-voltage variable frequency control, when pump clamping of the submersible electric pump is judged, the unit torque of the submersible electric pump is controlled to not exceed a rated level through medium-voltage variable frequency control, and reverse motor operation is carried out to reverse sand discharge; and in the process of detecting and regulating, judging whether the regulating operation is qualified or not through regulating and controlling supervision analysis, and storing the times of qualified regulation together when the regulating operation is judged to be qualified, and storing the times of unqualified regulation together when the regulating operation is judged to be unqualified.
Further, the specific analysis process of the regulatory analysis is as follows:
the method comprises the steps of collecting types of corresponding regulation and control operations, collecting judging and determining time of fault abnormality corresponding to the regulation and control operations and starting regulation and control time of the corresponding regulation and control operations, calculating time difference between the judging and determining time and the starting regulation and control time to obtain reaction interval time, collecting end regulation and control time of the corresponding regulation and control operations, calculating time difference between the end regulation and control time and the starting regulation and control time to obtain regulation and control time, respectively carrying out numerical comparison on the reaction interval time and the regulation and control time of the corresponding regulation and control operations and a corresponding preset reaction interval time threshold and a preset regulation and control time threshold, judging that the corresponding regulation and control operations are qualified if the reaction interval time and the regulation and control time do not exceed the corresponding preset threshold, and judging that the corresponding regulation and control operations are disqualified if the reaction interval time and the regulation and control time do not exceed the corresponding preset threshold.
Further, the specific operation process of the operation regulation summary module comprises:
setting a supervision and summarization period in the operation process of the submersible electric pump, collecting times of qualified regulation and control operations and times of unqualified regulation and control operations of the corresponding submersible electric pump in the supervision and summarization period, calculating the ratio of the times of unqualified regulation and control operations to the times of qualified regulation and control operations to obtain different ratio parameters, calculating the numerical value of the times of unqualified regulation and control operations to obtain a summarization coefficient, comparing the numerical value of the summarization coefficient with a preset summarization coefficient threshold value, generating a regulation and control early warning signal if the summarization coefficient exceeds the preset summarization coefficient threshold value, and generating a regulation and control normal signal if the summarization coefficient does not exceed the preset summarization coefficient threshold value.
Further, the processor is in communication connection with the background control end, the background control end is in control connection with the corresponding electric submersible pump, the processor sends a starting abnormal signal and a regulating and controlling early warning signal to the background control end, and a supervisory person of the background control end remotely controls the electric submersible pump when receiving the starting abnormal signal and the regulating and controlling early warning signal.
Compared with the prior art, the invention has the beneficial effects that:
in the invention, when the electric submersible pump is started, the starting period of the electric submersible pump is monitored by the starting monitoring analysis module, whether the starting regulation and control of the corresponding electric submersible pump are qualified or not is judged by analysis, and a starting abnormal signal is generated when the starting regulation and control of the corresponding electric submersible pump are judged to be unqualified, so that the real-time detection and analysis of the starting stage of the electric submersible pump is realized, the electric submersible pump is convenient to check and maintain in time, and the operation of the electric submersible pump is suspended in time so as to ensure the operation safety of the electric submersible pump;
in the invention, the fault detection and judgment are carried out on the electric submersible pump through the fault detection and regulation module in the operation process of the electric submersible pump so as to find and determine the fault abnormality type and carry out medium-voltage variable frequency control, and whether the regulation operation is qualified or not is judged through analysis and judgment when the corresponding regulation operation is carried out, and the operation regulation and control summarization module analyzes the regulation operation condition of the corresponding electric submersible pump in the monitoring manifold total period in the operation process of the electric submersible pump, so that the effective combination of the fault abnormality detection and judgment, the operation regulation and the subsequent regulation effect analysis is realized, the operation risk of the electric submersible pump is reduced, the service life of the electric submersible pump is prolonged, and the electric submersible pump can be operated safely and efficiently.
Drawings
For the convenience of those skilled in the art, the present invention will be further described with reference to the accompanying drawings;
FIG. 1 is an overall system block diagram of the present invention;
fig. 2 is a system block diagram of a second embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1, the medium-voltage variable-frequency control system of the electric submersible pump provided by the invention comprises a processor, a start monitoring analysis module, a fault detection and control module, an operation control summarizing module and an electric pump operation early-warning module, wherein the processor is in communication connection with the start monitoring analysis module, the fault detection and control module, the operation control summarizing module and the electric pump operation early-warning module;
the starting monitoring analysis module is used for monitoring the starting process of the starting period of the electric submersible pump when the electric submersible pump is started, judging whether the starting regulation and control of the corresponding electric submersible pump are qualified through analysis, generating a starting abnormal signal when judging that the starting regulation and control of the corresponding electric submersible pump are unqualified, realizing real-time detection and analysis of the starting stage of the electric submersible pump, and being beneficial to feedback and grasp of the medium-voltage variable-frequency control condition of the starting process of the electric submersible pump; the method comprises the steps that a starting abnormal signal is sent to an electric pump operation early warning module through a server, and when the electric pump operation early warning module receives the starting abnormal signal, a corresponding early warning is sent out so as to remind a corresponding manager to timely pause the operation of the submersible electric pump and carry out inspection maintenance; the specific operation process of the starting monitoring analysis module is as follows:
when the submersible electric pump is started, a plurality of groups of detection time points are set in the starting time period of the submersible electric pump, the detection time points are marked as i, i is a natural number larger than 1, i represents the number of the detection time points, the voltage and the current of the submersible electric pump at the detection time point i are acquired, the voltage difference between two adjacent groups of detection time points is calculated to obtain a voltage rise value, the current difference between two adjacent groups of detection time points is calculated to obtain a current rise value, the voltage rise value exceeding a preset voltage rise threshold is marked as a high voltage value, and the current rise value exceeding the preset current rise threshold is marked as a high current value; performing difference value calculation on the high pressure value and a preset pressure rise threshold value to obtain a pressure difference value, performing difference value calculation on the high pressure value and the preset pressure rise threshold value to obtain a flow difference value, performing summation calculation on all pressure difference values to obtain a pressure difference sum value YS1, and performing summation calculation on all flow difference values to obtain a flow difference sum value PS1;
calculating the ratio of the number of high-voltage values to the number of pressure rise values to obtain a pressure ratio YS2, calculating the ratio of the number of high-current values to the number of flow rise values to obtain a flow ratio PS2, and calculating the pressure ratio to the pressure difference sum value to obtain a pressure judgment value YS3 through a formula YS3=a1 xYS2+a2 xYS1, wherein a1 and a2 are preset weight coefficients, and the values of a1 and a2 are both larger than zero and a1 is larger than a2; and the numerical value of the pressure judgment value YS3 is in a direct proportion relation with the pressure ratio and the pressure difference sum, and the larger the numerical value of the pressure judgment value YS3 is, the worse the voltage performance condition in the starting process of the corresponding submersible electric pump is indicated;
carrying out numerical calculation on the flow ratio and the flow difference sum value to obtain a flow judgment value through a formula PS3=b1 xPS2+b2 xPS1, wherein b1 and b2 are preset weight coefficients, the values of b1 and b2 are both larger than zero, and b1 is larger than b2; and the value of the flow judgment value PS3 is in a direct proportion relation with the flow ratio and the flow difference sum, and the larger the value of the flow judgment value PS3 is, the worse the current performance condition in the starting process of the corresponding submersible electric pump is indicated; and respectively comparing the pressure judgment value and the flow judgment value with a preset pressure judgment threshold value and a preset flow judgment threshold value, judging that the starting regulation is qualified if the pressure judgment value does not exceed the preset pressure judgment threshold value and the flow judgment value does not exceed the preset flow judgment threshold value, and generating a starting abnormal signal if the pressure judgment value exceeds the preset pressure judgment threshold value or the flow judgment value exceeds the preset flow judgment threshold value.
The fault detection regulation module is used for carrying out fault detection judgment on the submersible electric pump in the operation process of the submersible electric pump so as to find and determine the fault abnormality type and carry out medium-voltage variable frequency control, judging whether the regulation operation is qualified through analysis when the corresponding regulation operation is carried out, adding and storing the times of qualified regulation when the regulation operation is judged to be qualified, adding and storing the times of unqualified regulation when the regulation operation is judged to be unqualified, and sending the regulation operation judgment result to the operation regulation summarizing module through the server; the specific operation process of the operation fault detection and control module is as follows:
in the operation process of the submersible electric pump, the operation condition of the submersible electric pump is collected and is judged whether to have corresponding fault abnormality or not based on a fault judgment model (the fault judgment model is recorded in advance by a manager and is stored in a processor, the fault judgment model is used for carrying out fault identification judgment based on operation data of the submersible electric pump), when overvoltage is judged, automatic voltage stabilization processing is carried out through medium voltage variable frequency control, when undervoltage is judged, automatic frequency reduction processing is carried out through medium voltage variable frequency control, when the submersible electric pump is judged, the unit torque of the submersible electric pump is controlled to not exceed the rated level and reverse motor operation is carried out to reverse sand discharge, effective detection and automatic regulation in the operation process of the submersible electric pump are realized, the efficient and safe operation of the submersible electric pump is ensured, the operation risk of the operation energy consumption of the submersible electric pump is reduced, and the service life of the submersible electric pump is prolonged;
in the process of detecting and regulating, the type of the corresponding regulating operation is collected, the judging and determining time of the fault abnormality corresponding to the regulating operation and the starting regulating time of the corresponding regulating operation are collected, the time difference between the judging and determining time and the starting regulating time is calculated to obtain the reaction interval time, the time difference between the ending regulating time and the starting regulating time is collected to obtain the regulating time, the reaction interval time and the regulating time corresponding to the regulating operation are respectively compared with the corresponding preset reaction interval time threshold value and the corresponding preset regulating time threshold value, if the reaction interval time and the regulating time do not exceed the corresponding preset threshold value, the corresponding regulating operation is judged to be qualified, the corresponding regulating operation is judged to be unqualified under the rest conditions, the times of qualified regulating operation are stored together when the regulating operation is judged to be qualified, the times of unqualified regulating operation are stored together when the regulating operation is judged to be unqualified, and the operation effect feedback of the regulating operation is realized.
The operation regulation and control summarizing module is used for setting a regulation and control summarizing period in the operation process of the submersible electric pump, analyzing the regulation and control operation conditions of the corresponding submersible electric pump in the monitoring manifold summarizing period, generating a regulation and control early warning signal or a regulation and control normal signal through analysis, and sending the regulation and control early warning signal to the electric pump operation early warning module through the server, so that the effect analysis of medium-voltage variable frequency control in the operation process of the submersible electric pump is realized, the operation risk condition and the potential safety hazard condition of the submersible electric pump are conveniently mastered, and the targeted improvement is facilitated in time, and the safe and efficient operation of the submersible electric pump is ensured; the electric pump operation early warning module sends out corresponding early warning when receiving the regulation and control early warning signal so as to remind corresponding management personnel to timely pause the operation of the submersible electric pump and carry out inspection and maintenance; the specific operation process of the operation regulation and control summarizing module is as follows:
setting a supervision summarizing period in the operation process of the submersible electric pump, collecting times of qualified regulation operation and times of unqualified regulation operation of the corresponding submersible electric pump in the supervision summarizing period, carrying out ratio calculation on the times of unqualified regulation operation and the times of qualified regulation operation to obtain an abnormal ratio parameter FH, and carrying out numerical calculation on the times of unqualified regulation operation YK and the abnormal ratio parameter FH through a formula HZ= (kp 1 x YK+kp2 x FH)/(kp1+kp2) to obtain a summarizing coefficient HZ, wherein kp1 and kp2 are preset proportionality coefficients, and kp2 is more than kp1 and more than 0; and the numerical value of the summary coefficient HZ is in a direct proportion relation with the times YK of unqualified regulation and control operation and the different ratio parameters FH, and the larger the numerical value of the summary coefficient HZ is, the larger the risk of the operation regulation and control process of the corresponding submersible electric pump is; and comparing the value of the summary coefficient with a preset summary coefficient threshold value, generating a regulation and control early warning signal if the summary coefficient exceeds the preset summary coefficient threshold value, and generating a regulation and control normal signal if the summary coefficient does not exceed the preset summary coefficient threshold value.
Example 2
As shown in fig. 2, the difference between the present embodiment and embodiment 1 is that the processor is communicatively connected to the background management and control end, the background management and control end is in control connection with the corresponding submersible electric pump, the processor sends a start-up abnormality signal and a regulation and control early warning signal to the background management and control end, and when a supervisory person of the background management and control end receives the start-up abnormality signal and the regulation and control early warning signal, the supervisory person remotely controls the submersible electric pump, so that remote control is convenient, and the background manager is facilitated to timely and in detail master the operation status information of the corresponding submersible electric pump, so that the corresponding background supervisory person can rapidly conduct targeted management.
The invention monitors the starting process of the electric submersible pump in the starting period through the starting monitoring analysis module when the electric submersible pump is started, judges whether the starting regulation and control of the corresponding electric submersible pump is qualified through analysis, and generates a starting abnormal signal when judging that the starting regulation and control of the corresponding electric submersible pump is unqualified, thereby realizing the real-time detection and analysis of the starting stage of the electric submersible pump and being beneficial to feeding back and mastering the medium-voltage variable-frequency control condition of the starting process of the electric submersible pump; the method comprises the steps of carrying out fault detection judgment on the submersible electric pump through a fault detection regulation module in the operation process of the submersible electric pump, finding and determining the fault abnormality type, carrying out medium-voltage variable frequency control, carrying out analysis and judgment on whether the regulation operation is qualified or not when corresponding regulation operation is carried out, sending a regulation operation judgment result to an operation regulation summarizing module through a server, setting a supervision summarizing period in the operation process of the submersible electric pump by the operation regulation summarizing module, analyzing the regulation operation condition of the corresponding submersible electric pump in the supervision summarizing period to generate a regulation early warning signal or a regulation normal signal, combining the fault abnormality detection judgment, operation regulation and subsequent regulation effect analysis, timely and pointedly carrying out effective management on the submersible electric pump, reducing the operation risk of the submersible electric pump, improving the service life of the submersible electric pump, and enabling the submersible electric pump to safely and efficiently operate.
The above formulas are all formulas with dimensions removed and numerical values calculated, the formulas are formulas with a large amount of data collected for software simulation to obtain the latest real situation, and preset parameters in the formulas are set by those skilled in the art according to the actual situation. The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (7)
1. The medium-voltage variable-frequency control system of the electric submersible pump is characterized by comprising a processor, a starting monitoring analysis module, a fault detection regulation module, an operation regulation summarizing module and an electric pump operation early warning module; the starting monitoring analysis module is used for monitoring the starting process of the starting period of the electric submersible pump when the electric submersible pump is started, judging whether the starting regulation of the corresponding electric submersible pump is qualified through analysis, generating a starting abnormal signal when judging that the starting regulation of the corresponding electric submersible pump is unqualified, sending the starting abnormal signal to the electric pump operation early warning module through the server, and sending out corresponding early warning when the electric pump operation early warning module receives the starting abnormal signal so as to remind a corresponding manager to pause the operation of the electric submersible pump in time and carry out inspection and maintenance;
the fault detection regulation module is used for carrying out fault detection judgment on the submersible electric pump in the operation process of the submersible electric pump so as to find and determine the fault abnormality type and carry out medium-voltage variable frequency control, judging whether the regulation operation is qualified through analysis when the corresponding regulation operation is carried out, adding and storing the times of qualified regulation when the regulation operation is judged to be qualified, adding and storing the times of unqualified regulation when the regulation operation is judged to be unqualified, and sending the regulation operation judgment result to the operation regulation summarizing module through the server; the operation regulation and control summarizing module is used for setting a regulation and control summarizing period in the operation process of the submersible electric pump, analyzing the regulation and control operation conditions of the corresponding submersible electric pump in the monitoring manifold summarizing period, generating a regulation and control early warning signal or a regulation and control normal signal through analysis, sending the regulation and control early warning signal to the electric pump operation early warning module through the server, and sending out corresponding early warning when the electric pump operation early warning module receives the regulation and control early warning signal so as to remind a corresponding manager to timely pause the operation of the submersible electric pump and carry out inspection and maintenance.
2. The submersible electric pump medium voltage variable frequency control system of claim 1, wherein the specific operation process of starting the monitoring analysis module comprises:
when the electric submersible pump is started, the pressure judgment value and the flow judgment value of the electric submersible pump in the starting period are obtained through time-sharing point detection analysis, the pressure judgment value and the flow judgment value are respectively compared with a preset pressure judgment threshold value and a preset flow judgment threshold value, if the pressure judgment value does not exceed the preset pressure judgment threshold value and the flow judgment value does not exceed the preset flow judgment threshold value, the starting regulation is judged to be qualified, and otherwise, a starting abnormal signal is generated.
3. The submersible electric pump medium voltage variable frequency control system according to claim 2, wherein the specific analysis process of the time-sharing point detection analysis is as follows:
setting a plurality of groups of detection time points in the starting period of the submersible electric pump, marking the detection time points as i, wherein i is a natural number larger than 1, collecting the voltage and the current of the submersible electric pump at the detection time point i, performing difference calculation on the voltage of two adjacent groups of detection time points to obtain a voltage rise value, performing difference calculation on the current of two adjacent groups of detection time points to obtain a current rise value, marking the voltage rise value exceeding a preset voltage rise threshold as a high voltage value, and marking the current rise value exceeding the preset current rise threshold as a high current value;
the method comprises the steps of carrying out difference value calculation on a high-pressure value and a preset pressure rise threshold value to obtain a pressure difference value, carrying out difference value calculation on the high-pressure value and the preset pressure rise threshold value to obtain a flow difference value, carrying out summation calculation on all pressure difference values to obtain a pressure difference sum value, carrying out summation calculation on all flow difference values to obtain a flow difference sum value, carrying out ratio calculation on the number of the high-pressure values and the number of the pressure rise values to obtain a pressure ratio value, carrying out numerical calculation on the pressure ratio value and the pressure difference sum value to obtain a pressure judgment value, and carrying out numerical calculation on the flow ratio value and the flow difference sum value to obtain a flow judgment value.
4. The submersible electric pump medium voltage variable frequency control system of claim 3, wherein the specific operation process of the operation fault detection and control module comprises:
during the operation process of the submersible electric pump, the operation condition of the submersible electric pump is collected, whether corresponding fault abnormality exists or not is judged based on a fault judging model, when overvoltage is judged, automatic voltage stabilization treatment is carried out through medium-voltage variable frequency control, when undervoltage is judged, automatic frequency reduction treatment is carried out through medium-voltage variable frequency control, when pump clamping of the submersible electric pump is judged, the unit torque of the submersible electric pump is controlled to not exceed a rated level through medium-voltage variable frequency control, and reverse motor operation is carried out to reverse sand discharge; and in the process of detecting and regulating, judging whether the regulating operation is qualified or not through regulating and controlling supervision analysis, and storing the times of qualified regulation together when the regulating operation is judged to be qualified, and storing the times of unqualified regulation together when the regulating operation is judged to be unqualified.
5. The submersible electric pump medium voltage variable frequency control system of claim 4, wherein the specific analytical process of the regulatory analysis is as follows:
the method comprises the steps of collecting types of corresponding regulation and control operations, collecting judging and determining time of fault abnormality corresponding to the regulation and control operations and starting regulation and control time of the corresponding regulation and control operations, calculating time difference between the judging and determining time and the starting regulation and control time to obtain reaction interval time, collecting end regulation and control time of the corresponding regulation and control operations, calculating time difference between the end regulation and control time and the starting regulation and control time to obtain regulation and control time, respectively carrying out numerical comparison on the reaction interval time and the regulation and control time of the corresponding regulation and control operations and a corresponding preset reaction interval time threshold and a preset regulation and control time threshold, judging that the corresponding regulation and control operations are qualified if the reaction interval time and the regulation and control time do not exceed the corresponding preset threshold, and judging that the corresponding regulation and control operations are disqualified if the reaction interval time and the regulation and control time do not exceed the corresponding preset threshold.
6. The submersible electric pump medium voltage variable frequency control system of claim 1, wherein the specific operation process of the operation control summarizing module comprises:
setting a supervision and summarization period in the operation process of the submersible electric pump, collecting times of qualified regulation and control operations and times of unqualified regulation and control operations of the corresponding submersible electric pump in the supervision and summarization period, calculating the ratio of the times of unqualified regulation and control operations to the times of qualified regulation and control operations to obtain different ratio parameters, calculating the numerical value of the times of unqualified regulation and control operations to obtain a summarization coefficient, comparing the numerical value of the summarization coefficient with a preset summarization coefficient threshold value, generating a regulation and control early warning signal if the summarization coefficient exceeds the preset summarization coefficient threshold value, and generating a regulation and control normal signal if the summarization coefficient does not exceed the preset summarization coefficient threshold value.
7. The system of claim 1, wherein the processor is communicatively connected to a background management and control end, the background management and control end is in control connection with the corresponding electric submersible pump, the processor sends a start abnormality signal and a regulation and control early warning signal to the background management and control end, and a supervisory person of the background management and control end remotely controls the electric submersible pump when receiving the start abnormality signal and the regulation and control early warning signal.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116911619A (en) * | 2023-09-12 | 2023-10-20 | 济宁长胜新材料股份有限公司 | Intelligent chemical production management and control system based on data analysis |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116911619A (en) * | 2023-09-12 | 2023-10-20 | 济宁长胜新材料股份有限公司 | Intelligent chemical production management and control system based on data analysis |
| CN116911619B (en) * | 2023-09-12 | 2023-12-22 | 济宁长胜新材料股份有限公司 | Intelligent chemical production management and control system based on data analysis |
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