CN112670952B - Control method and equipment for generator set and readable storage medium - Google Patents
Control method and equipment for generator set and readable storage medium Download PDFInfo
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- CN112670952B CN112670952B CN202011349189.7A CN202011349189A CN112670952B CN 112670952 B CN112670952 B CN 112670952B CN 202011349189 A CN202011349189 A CN 202011349189A CN 112670952 B CN112670952 B CN 112670952B
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Abstract
The invention discloses a control method, equipment and a readable storage medium of a generator set, wherein the method comprises the following steps: acquiring temperature values detected by temperature detection devices arranged on all generators in a generator set, and determining the change trend of each temperature value; if a first temperature value with a change trend of jump exists in each temperature value, judging that a temperature detection device corresponding to the first temperature value has a fault; and acquiring a shared temperature corresponding to the temperature detection device with the fault in the generator set, and taking the shared temperature as the detection temperature of the temperature detection device with the fault. According to the invention, the shared temperature of each generator forming the generator set is distributed to the temperature detection device with faults as the detection temperature, so that the generator set is prevented from being protected by Wen Tingji due to the faults of the temperature detection device, and the power generation performance is improved.
Description
Technical Field
The present invention relates to the field of power generation technologies, and in particular, to a method and apparatus for controlling a generator set, and a readable storage medium.
Background
The generator Set (English name: generators Set) is a complete Set of mechanical equipment for converting other forms of energy into electric energy, and consists of a power system, a control system, a silencing system, a damping system and an exhaust system. According to different power sources, the system can be divided into a diesel generator set, a gas generator set, a gasoline generator set, a wind generator set, a solar generator set, a hydroelectric generator set, a coal-fired generator set and the like. Although the power sources of the different types of generator sets are different, in the operation process, because each large system is easy to generate heat, a temperature detection device is required to be installed to detect the temperature in real time, and once a certain temperature is detected to be too high, the whole generator set is protected by being high Wen Tingji.
At present, in the temperature detection process, the phenomenon that the detected temperature is too high due to the failure of the temperature detection device, so that the whole generator set is frequently stopped at high temperature for protection exists. The frequent high Wen Tingji of the generator set protects the generator set, so that a certain amount of generated energy is lost, and the power generation performance is reduced.
Disclosure of Invention
The invention mainly aims to provide a control method, equipment and a readable storage medium of a generator set, and aims to solve the technical problem that the generator set is frequently protected by Wen Tingji due to the failure of a temperature detection device in the prior art, so that the power generation performance is reduced.
In order to achieve the above object, the present invention provides a control method of a generator set, the control method of the generator set comprising the steps of:
acquiring temperature values detected by temperature detection devices arranged on all generators in a generator set, and determining the change trend of each temperature value;
if a first temperature value with a change trend of jump exists in each temperature value, judging that a temperature detection device corresponding to the first temperature value has a fault;
and acquiring a shared temperature corresponding to the temperature detection device with the fault in the generator set, and taking the shared temperature as the detection temperature of the temperature detection device with the fault.
Optionally, the step of obtaining a shared temperature corresponding to the temperature detecting device with the fault in the generator set, and taking the shared temperature as the detected temperature of the temperature detecting device with the fault includes:
determining a target component detected by the temperature detection device with faults, and acquiring a corresponding target temperature value of the target component on each generator;
removing the first temperature value from each target temperature value, carrying out average processing on each removed target temperature value to generate the sharing temperature,
The shared temperature is assigned to the temperature detecting device having the failure as a detected temperature of the temperature detecting device having the failure.
Optionally, the step of using the shared temperature as the detected temperature of the temperature detecting device having the fault includes:
and displaying the detected temperature based on the temperature detection device with the fault, and outputting maintenance prompt information based on the temperature detection device with the fault.
Optionally, the step of determining the trend of change of each of the temperature values includes:
monitoring the corresponding change value of each temperature value within a preset time period, and judging each temperature value one by one:
if the change value corresponding to the temperature value is continuously increased, determining that the change trend of the temperature value is increased;
if the change value corresponding to the temperature value is floating change in a preset reference range, determining that the change trend of the temperature value is stable;
and if the change value corresponding to the temperature value is floating change within a preset threshold range, determining that the change trend of the temperature value is jump.
Optionally, the step of determining the trend of change of each of the temperature values includes:
If a second temperature value with the change trend rising exists in each temperature value, determining a detection component corresponding to the second temperature value;
and controlling the generator set according to the control attribute of the detection part.
Optionally, the step of controlling the generator set according to the control attribute of the detection component includes:
if the control attribute of the detection part is a shutdown attribute, performing shutdown processing on the generator set;
if the control attribute of the detection component is a fault attribute, determining a fault generator corresponding to the detection component in the generator set, and outputting fault prompt information based on the fault generator and the detection component.
Optionally, if the control attribute of the detecting component is a shutdown attribute, the step of performing shutdown processing on the generator set includes:
if the control attribute of the detection component is a shutdown attribute, comparing the second temperature value with a preset alarm interval;
if the second temperature value is larger than the lower boundary value of the preset alarm interval, outputting alarm prompt information;
and if the second temperature value is larger than the upper boundary value of the preset alarm interval, stopping the generator set.
Optionally, if the control attribute of the detecting component is a fault attribute, the step of determining the fault generator corresponding to the detecting component in the generator set includes:
if the control attribute of the detection part is a fault attribute, judging whether the second temperature values are all larger than a preset value in a preset time interval, and judging whether the second temperature values are reduced when a soft reset control instruction is received;
if the second temperature values are all larger than the preset value within the preset time interval and the second temperature values are not reduced when the soft reset control instruction is received, judging that a fault generator exists in the generator set;
and searching a generator corresponding to the detection component in the generator set, and determining the generator corresponding to the detection component as the fault generator.
Further, to achieve the above object, the present invention also provides a control device for a generator set, where the control device for a generator set includes a memory, a processor, and a control program for a generator set stored in the memory and capable of running on the processor, where the control program for a generator set, when executed by the processor, implements the steps of the control method for a generator set as described above.
Further, to achieve the above object, the present invention also provides a readable storage medium having stored thereon a control program of a generator set, which when executed by a processor, implements the steps of the control method of a generator set as described above.
According to the control method of the generator set, the generator set consists of a plurality of generators, and each generator is provided with a temperature detection device for detecting the temperature; the temperature change condition of the parts with the temperature detection requirements in each generator is reflected by acquiring the temperature values detected by the temperature detection devices arranged on each generator and determining the change trend of each temperature value; if a first temperature value with a change trend of jump exists in each temperature value, namely the first temperature value is not directly changed to another higher temperature value, the temperature detection device for detecting the first temperature value is indicated to have a fault; in order to avoid the high Wen Tingji protection of the generator set due to the failure of the temperature detection device, acquiring the normal temperature shared by all the generators forming the generator set, and distributing the acquired shared temperature to the temperature detection device with the failure as the detection temperature; so that the generator set can continue to operate to generate power, and the power generation performance is improved.
Drawings
FIG. 1 is a schematic diagram of a hardware operating environment of a device according to an embodiment of a control device for a generator set of the present invention;
fig. 2 is a flowchart of a first embodiment of a control method of a generator set according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides control equipment of a generator set, and referring to fig. 1, fig. 1 is a schematic structural diagram of equipment hardware operation environment related to an embodiment scheme of the control equipment of the generator set.
As shown in fig. 1, the control apparatus of the generator set may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
Those skilled in the art will appreciate that the hardware configuration of the control device of the genset shown in fig. 1 does not constitute a limitation of the control device of the genset, and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and a control program of a generator set may be included in the memory 1005 as one type of readable storage medium. The operating system is a program for managing and controlling control equipment and software resources of the generator set, and supports the operation of a network communication module, a user interface module, a control program of the generator set and other programs or software; the network communication module is used to manage and control the network interface 1004; the user interface module is used to manage and control the user interface 1003.
In the hardware structure of the control device of the generator set shown in fig. 1, the network interface 1004 is mainly used for connecting to a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; the processor 1001 may call a control program of the genset stored in the memory 1005 and perform the following operations:
Acquiring temperature values detected by temperature detection devices arranged on all generators in a generator set, and determining the change trend of each temperature value;
if a first temperature value with a change trend of jump exists in each temperature value, judging that a temperature detection device corresponding to the first temperature value has a fault;
and acquiring a shared temperature corresponding to the temperature detection device with the fault in the generator set, and taking the shared temperature as the detection temperature of the temperature detection device with the fault.
Further, the step of obtaining the shared temperature corresponding to the temperature detection device with the fault in the generator set, and taking the shared temperature as the detection temperature of the temperature detection device with the fault includes:
determining a target component detected by the temperature detection device with faults, and acquiring a corresponding target temperature value of the target component on each generator;
removing the first temperature value from each target temperature value, carrying out average processing on each removed target temperature value to generate the sharing temperature,
the shared temperature is assigned to the temperature detecting device having the failure as a detected temperature of the temperature detecting device having the failure.
Further, after the step of taking the shared temperature as the detected temperature of the temperature detection device having a failure, the processor 1001 may call a control program of a generator set stored in the memory 1005 and perform the following operations:
and displaying the detected temperature based on the temperature detection device with the fault, and outputting maintenance prompt information based on the temperature detection device with the fault.
Further, the step of determining the trend of change of each of the temperature values includes:
monitoring the corresponding change value of each temperature value within a preset time period, and judging each temperature value one by one:
if the change value corresponding to the temperature value is continuously increased, determining that the change trend of the temperature value is increased;
if the change value corresponding to the temperature value is floating change in a preset reference range, determining that the change trend of the temperature value is stable;
and if the change value corresponding to the temperature value is floating change within a preset threshold range, determining that the change trend of the temperature value is jump.
Further, after the step of determining the trend of each of the temperature values, the processor 1001 may call a control program of the generator set stored in the memory 1005, and perform the following operations:
If a second temperature value with the change trend rising exists in each temperature value, determining a detection component corresponding to the second temperature value;
and controlling the generator set according to the control attribute of the detection part.
Further, the step of controlling the generator set according to the control attribute of the detection component includes:
if the control attribute of the detection part is a shutdown attribute, performing shutdown processing on the generator set;
if the control attribute of the detection component is a fault attribute, determining a fault generator corresponding to the detection component in the generator set, and outputting fault prompt information based on the fault generator and the detection component.
Further, if the control attribute of the detecting component is a shutdown attribute, the step of performing shutdown processing on the generator set includes:
if the control attribute of the detection component is a shutdown attribute, comparing the second temperature value with a preset alarm interval;
if the second temperature value is larger than the lower boundary value of the preset alarm interval, outputting alarm prompt information;
and if the second temperature value is larger than the upper boundary value of the preset alarm interval, stopping the generator set.
Further, if the control attribute of the detecting component is a fault attribute, the step of determining the fault generator corresponding to the detecting component in the generator set includes:
if the control attribute of the detection part is a fault attribute, judging whether the second temperature values are all larger than a preset value in a preset time interval, and judging whether the second temperature values are reduced when a soft reset control instruction is received;
if the second temperature values are all larger than the preset value within the preset time interval and the second temperature values are not reduced when the soft reset control instruction is received, judging that a fault generator exists in the generator set;
and searching a generator corresponding to the detection component in the generator set, and determining the generator corresponding to the detection component as the fault generator.
The specific implementation manner of the control device of the generator set of the present invention is substantially the same as the following examples of the control method of the generator set, and will not be described herein.
The invention further provides a control method of the generator set.
Referring to fig. 2, fig. 2 is a flowchart illustrating a control method of a generator set according to a first embodiment of the present invention.
Embodiments of the present invention provide embodiments of a method of controlling a generator set, it being noted that although a logic sequence is shown in the flow chart, in some cases the steps shown or described may be performed in a different order than that shown or described herein. Specifically, the control method of the generator set in the embodiment includes:
step S10, obtaining temperature values detected by temperature detection devices installed on all generators in a generator set, and determining the change trend of all the temperature values;
the control method of the generator set is applied to a control system of the generator set, is suitable for controlling the operation of the generator set through the control system, and avoids shutdown protection of the generator set caused by faults of a temperature detection device in the generator set. The generator set may be a diesel generator set, a gas generator set, a gasoline generator set, a wind generator set, a solar generator set, a hydroelectric generator set, a coal-fired generator set, etc., and the wind generator set is preferably used for explanation in this embodiment. Specifically, in the running process of the wind generating set, components such as a generator, a gear box, a converter, a main shaft and the like of the wind generating set are easy to generate heat, and a temperature sensor is required to be installed to detect the temperature of the components in real time so as to avoid damage caused by overhigh temperature of the components. Temperature detection is usually realized through temperature detection devices such as a temperature sensor and a temperature detection switch, but the temperature detection devices often have the problems of signal interruption, damage and the like in the running process of a wind power generator, so that a wind power generator unit is stopped by a high-temperature stopping protection mechanism, the number of times of faults of the wind power generator unit is increased, and the generated energy is influenced. In this embodiment, the shutdown protection of the generator caused by the failure of the temperature detection device is controlled, and the temperature detection device may be specifically set as a PT100 temperature sensor. That is, the components with temperature detection requirements in the generator included in the generator set are connected with PT100 temperature sensors, and each PT100 temperature sensor is directly or indirectly connected with the control system so as to transmit the detected temperature values of the components to the control system for control.
Further, the control system determines the change trend of each temperature value after acquiring the temperature value detected by the temperature detection device, wherein the change trend is the change state of each temperature value relative to the previous moment, and at least comprises a gradually rising change state, a stable unchanged state, a jump state which directly jumps to a certain higher value, and the like.
Step S20, if a first temperature value with a change trend of jump exists in each temperature value, judging that a temperature detection device corresponding to the first temperature value has a fault;
further, after the change trend of each temperature value is determined, judging whether a jump change trend exists in each change trend, namely judging whether a change state of jumping from a lower value to a higher value directly without transition exists in each change trend. If the jump change trend exists, searching the temperature value with the jump change trend from the temperature values, and determining the temperature value as a first temperature value.
It should be noted that, in this embodiment, the jump state of the temperature value characterizes the fault of the temperature detection device, and the temperatures of the faults of the different types of temperature sensing devices are different. If the temperature of the failure of the type A temperature sensing device is 250 DEG, and the temperature of the failure of the type B temperature sensing device is 850 DEG; if the temperature detected by the A-type temperature sensing device directly jumps to 250 degrees from a certain normal temperature value, judging that the temperature detecting device has faults, but not the detected component has faults; similarly, if the temperature detected by the B-type temperature sensing device is directly jumped from a certain normal temperature value to 850 °, it can be determined that the temperature detecting device has a fault, but not that the detected component has a fault. Therefore, in the present embodiment, if it is determined that there is a first temperature value whose change trend is a jump among the temperature values detected by the temperature detection devices, it is explained that there is a failure in the temperature detection device for detecting the first temperature value, and it is possible to determine that there is a failure in the temperature detection device corresponding to the first temperature value.
Step S30, obtaining a shared temperature corresponding to the temperature detection device with the fault in the generator set, and taking the shared temperature as the detection temperature of the temperature detection device with the fault.
Understandably, the failure of the temperature detection device is relatively weakly correlated with the power generation function of the fan-generator set; therefore, in order not to affect the implementation of the power generation function, the present embodiment is provided with a temperature sharing mechanism, rather than directly shutting down the generator set. Specifically, after determining that the temperature detection device corresponding to the first temperature value has a fault, the control system acquires a shared temperature of the generator set corresponding to the temperature detection device having the fault, where the shared temperature is formed by normal temperatures of other identical components of the same type detected in the generator set, and the identical components of the same type as those detected by the temperature detection device having the fault. The obtained shared temperature is distributed to a temperature detection device with faults and used as a normal detection temperature detected by the temperature detection device, so that the phenomenon that the detected temperature is too high due to the faults of the temperature detection device is avoided, the generator set is stopped for protection, and the power generation performance is influenced.
Further, since there are many temperature detecting devices installed in the generator, there are many detected temperature values, and the normal ranges of the detected temperature values of the different components are different. In order to ensure that the acquired shared temperature corresponds to the type of the component detected by the temperature detection device with the fault, the temperatures of different components of all the generators in the generator set can be grouped, the temperatures of the components with the same type in all the generators are divided into the same group, the temperatures of the components with different types are divided into different groups, and the different groups form different shared temperatures, so that the generator set corresponds to the shared temperatures of a plurality of components with different types; such as a shared temperature for the temperature sensed by the main shaft in each generator, or a shared temperature for the temperature sensed by the current transformer in each generator, etc.
When the shared temperature corresponding to the temperature detection device with the fault of the generator set is obtained, the type of the part detected by the temperature detection device with the fault is determined, and then the temperature detected by the part of the type in each generator is formed into the shared temperature to be obtained. The shared temperature may be acquired in real time, in addition to the type of the component detected by the temperature detecting device in which the failure is determined. Specifically, the temperatures detected by the components with the same type are formed into a temperature array in advance, whether the values in the temperature values jump or not is judged in real time, namely whether the temperature values of the components with the same type have a jumping change state is judged, if the temperature value of one component has the jumping change state and the jumping value is continuously maintained for a period of time, the temperature detection device with faults in the temperature detection device for detecting the temperatures of the components is judged, at the moment, the temperature values in the temperature array are directly generated into shared temperatures, and the shared temperatures are distributed to the temperature detection device with faults.
Further, the step of obtaining the shared temperature corresponding to the temperature detecting device with the fault in the generator set, and taking the shared temperature as the detected temperature of the temperature detecting device with the fault includes:
step S31, determining a target component detected by the temperature detection device with faults, and acquiring a corresponding target temperature value of the target component on each generator;
step S32, eliminating the first temperature value from each target temperature value, carrying out average processing on each eliminated target temperature value to generate the sharing temperature,
and step S33, distributing the shared temperature to the temperature detection device with faults as the detection temperature of the temperature detection device with faults.
Further, when the shared temperature corresponding to the temperature detection device with the fault in the generator set is obtained, determining the target component detected by the temperature detection device with the fault; if the first temperature value is derived from the main shaft, it is determined that the temperature detection device detecting the main shaft has a failure, and the main shaft is determined as the target member. And then, acquiring a target temperature value corresponding to the target component on each generator in the generator set, wherein the acquired target temperature value is a temperature value of the same component as the target component mounted on each generator and comprises a first temperature value of the target component. Considering that the first temperature value is an abnormal temperature value, after each target temperature value is obtained, the first temperature value is found out from each target temperature value to perform the rejecting operation. Each obtained temperature value carries an identifier of a temperature detection device from which the temperature value is derived, a target identifier of the temperature detection device with the fault is found out from the identifiers, the target identifier is determined to be a first temperature value, and the first temperature value is removed from the target temperature values.
Furthermore, the target temperature values remained after the elimination are added, and the average value processing is carried out by using the ratio of the obtained result of the addition and the number of the target temperature values, so as to generate the shared temperature. The shared temperature is thereafter assigned to the temperature detecting device having the failure as its detected temperature to cause the generator to normally operate to generate electricity.
Further, after taking the shared temperature as the temperature detected by the temperature detecting device with the fault, the control system also outputs and displays the shared temperature as the detected temperature detected by the temperature detecting device with the fault so as to reflect the current normal operation of the generator set. In addition, in order to ensure the subsequent normal detection of the temperature of the component to which the temperature detection device has failed, it is necessary to carry out maintenance on the temperature detection device storing the failure. Therefore, the temperature value of the temperature detection device with the fault is displayed in a shared temperature output mode, the identifier of the temperature detection device with the fault is read, and the identifier is generated as overhaul prompting information output so as to characterize the temperature detection device with the fault through the identifier, and prompt the timely replacement or maintenance of the temperature detection device with the fault.
According to the control method of the generator set, the generator set consists of a plurality of generators, and each generator is provided with a temperature detection device for detecting the temperature; the temperature change condition of the parts with the temperature detection requirements in each generator is reflected by acquiring the temperature values detected by the temperature detection devices arranged on each generator and determining the change trend of each temperature value; if a first temperature value with a change trend of jump exists in each temperature value, namely the first temperature value is not directly changed to another higher temperature value, the temperature detection device for detecting the first temperature value is indicated to have a fault; in order to avoid the high Wen Tingji protection of the generator set due to the failure of the temperature detection device, acquiring the normal temperature shared by all the generators forming the generator set, and distributing the acquired shared temperature to the temperature detection device with the failure as the detection temperature; so that the generator set can continue to operate to generate power, and the power generation performance is improved.
Further, based on the first embodiment of the control method of the generator set of the present invention, a second embodiment of the control method of the generator set of the present invention is presented.
The second embodiment of the control method of the generator set is different from the first embodiment of the control method of the generator set in that the step of determining the trend of change of each of the temperature values includes:
Step S11, monitoring the corresponding change value of each temperature value within a preset time period, and judging each temperature value one by one:
step S12, if the change value corresponding to the temperature value is continuously increased, determining that the change trend of the temperature value is increased;
step S13, if the change value corresponding to the temperature value is floating change within a preset reference range, determining that the change trend of the temperature value is stable;
step S14, if the change value corresponding to the temperature value is floating change within the preset threshold range, determining that the change trend of the temperature value is jump.
In the process of determining the trend of the temperature values detected by the temperature detection device, the present embodiment needs to determine the change condition of each temperature value relative to each own at the previous time. Therefore, the preset duration for representing the change state of the current moment relative to the previous moment is preset, such as 30 minutes or one hour, and the change trend is the change condition of each temperature value of the current moment relative to each temperature value before 30 minutes or one hour. Specifically, the corresponding change value of each temperature value in the preset time period is monitored, namely, the difference value between the value of each temperature value at the current time and the value of the time point at the previous time represented by the preset time period is monitored, and the change trend of each temperature value is represented by the change value represented by the difference value. And then, independently judging each temperature value, and presetting a preset reference range and a preset threshold range for judging the change size, wherein the preset reference range is the change range of the normal temperature value of the component detected by the temperature detection device, and the preset threshold range is the fault value range of the temperature detection device. In the process of independently judging each temperature value, each temperature value can be sequenced according to the importance degree of the component from which the temperature value is obtained, or sequenced according to the time sequence of the obtained temperature values, so as to generate a temperature value sequence, and judge each temperature value according to the sequence of each temperature value in the temperature value sequence.
Further, the temperature value arranged at the first position is read, the corresponding change value is compared with a preset reference range, and whether the temperature value is subjected to floating change in the preset reference range is judged, wherein the floating change is small-range change caused by the influence of normal factors such as environment or self errors on the temperature detection device, and the change condition of the temperature value is not substantially influenced.
If the determined change value is in the preset reference range, the temperature value is in the normal range, and the change trend is determined to be stable. If the variation value does not float within the preset reference range, the temperature value is indicated to have an abnormality for a preset time period, and the type of the abnormality needs to be determined. At this time, the change value corresponding to the temperature value is compared with a preset threshold range, and whether the change value floats and changes in the preset threshold range is judged.
If the temperature value changes in a floating way within the preset threshold range, the temperature value is suddenly changed from a normal value at the previous moment to a fault value, the fault of the temperature detection device is represented, and the change trend of the temperature detection device is determined as the temperature. If the determined change value does not float and change within the preset threshold range, the temperature value is determined to be abnormal, but the temperature value is not abnormal due to the fault of the temperature detection device, and whether the temperature value is in a continuously rising state is continuously determined. The continuous rising state is judged by arbitrarily selecting a plurality of time points from a preset time length, reading corresponding values of the temperature values at the time points, comparing the read values with the values at the current moment, and judging whether the values continuously increase. If the value continues to increase, it is determined that the change value corresponding to the temperature value continues to increase, and the change trend of the temperature value is determined as an increase. And after the temperature values arranged at the first position in the temperature value sequence are judged to determine the change trend, reading the temperature values arranged at the next position to judge until each temperature value in the temperature value sequence is judged to determine the change trend.
The continuously rising state of the temperature value corresponding to the change value indicates that the component detected by the temperature detection device has a fault. And a certain part in the generator has a fault to influence the power generation, and the power generation needs to be stopped for maintenance. Therefore, the step of determining the trend of variation of each of the temperature values includes, after:
step b1, if a second temperature value with the change trend rising exists in each temperature value, determining a detection component corresponding to the second temperature value;
and b2, controlling the generator set according to the control attribute of the detection part.
Further, in the process of judging each temperature value, if the change value corresponding to a certain temperature value continuously rises, if the change trend of the temperature value is rising, the temperature value with the change trend rising is indicated in each temperature value, and the temperature value is treated as a second temperature value in each temperature value. And determining a temperature detection device from which the second temperature value is derived according to the identifier carried by the second temperature value, and searching a part detected by the temperature detection device as a fault detection part corresponding to the second temperature value. Considering that the degree of influence of different fault degrees of the detection component on the generator set is also different, the higher the fault degree is, the higher the influence degree is, the generator set is required to be shut down, otherwise, the lower the fault degree is, the lower the influence degree is, and only prompt information is required to be output so as to prompt maintenance personnel to pay attention to timely maintenance. In this embodiment, the processing performed according to the degree of failure of the detecting member is used as the control attribute of the detecting member, and after the detecting member is determined, the generator set is controlled according to the control attribute of the detecting member, so as to ensure that the generator set operates in a normal state.
According to the embodiment, the change trend of each temperature value is determined through the change value of each temperature value within the preset time period, the normal or abnormal condition of each temperature value is determined through each change trend, and the abnormal conditions characterized by the rising and jumping of the change trend are respectively controlled. The method is beneficial to accurate classification control, operation power generation of the generator set and power generation performance improvement while accurately distinguishing abnormal conditions.
Further, based on the second embodiment of the control method of the generator set of the present invention, a third embodiment of the control method of the generator set of the present invention is presented.
The third embodiment of the method for controlling a generator set is different from the second embodiment of the method for controlling a generator set in that the step of controlling the generator set according to the control attribute of the detecting member includes:
step b21, if the control attribute of the detection component is a shutdown attribute, performing shutdown processing on the generator set;
the control attributes of the detection component in the embodiment comprise a shutdown attribute and a fault attribute, and the shutdown attribute and the fault attribute are determined by the height of a temperature value. If the continuously-rising second temperature value of the detection component rises to be higher than a certain value to influence the power generation operation of the generator set, determining the control attribute of the detection component as a shutdown attribute; and if the second temperature of the rising detection component is higher than the normal value but the generating operation of the generator set is not influenced, determining the control attribute of the detection component as a fault attribute. For the shutdown attribute, performing shutdown treatment on the generator set; specifically, if the control attribute of the detection component is a shutdown attribute, the step of performing shutdown processing on the generator set includes:
Step b211, if the control attribute of the detection component is a shutdown attribute, comparing the second temperature value with a preset alarm interval;
step b212, outputting an alarm prompt message if the second temperature value is greater than the lower boundary value of the preset alarm interval;
and step b213, if the second temperature value is greater than the upper boundary value of the preset alarm interval, stopping the generator set.
Further, in order to avoid the influence caused by sudden shutdown in the shutdown attribute state, the present embodiment is provided with an alarm reminding mechanism. Specifically, a preset alarm interval which is characterized by a higher temperature value and possibly affects the operation of the generator set is preset, wherein the preset alarm interval is a numerical range interval which is characterized by a high temperature value, such as 140 degrees to 150 degrees. After determining that the control attribute of the detection component is the shutdown attribute, comparing the second temperature value with a preset alarm interval, and judging whether the second temperature value is greater than a lower boundary value of the preset alarm interval, such as 140 degrees. If the temperature is greater than the lower boundary, the second temperature is increased to the temperature at which shutdown processing is required for the generator set, so that alarm prompt information is output to prompt that shutdown processing is required for the generator set. And then, continuously comparing the second temperature value with an upper boundary value of a preset alarm interval, such as 150 degrees, and judging whether the continuously-rising second temperature value is larger than the upper boundary value. If the temperature is greater than the upper boundary value, the second temperature is increased to the temperature for stopping the generator set, and the stopping treatment is carried out on the generator set so as to stop the generator set for protection and avoid damaging the generator set.
And step b22, if the control attribute of the detection component is a fault attribute, determining a fault generator corresponding to the detection component in the generator set, and outputting fault prompt information based on the fault generator and the detection component.
Further, if the control attribute of the detection component is determined to be a fault attribute, the generator where the detection component is located is searched, and the searched generator is the fault generator corresponding to the detection component in the generator set. Generating a fault generator and a detection component into fault prompt information output, wherein the fault prompt information comprises fault types of the detection component, such as main bearing gear box side temperature overrun faults and main bearing rotor side temperature overrun faults; the system also comprises detection components, self-starting information, fault level codes and the like. The generator with the fault detection component is firstly searched through the fault prompt information, the fault detection component is further searched from the generator, and the information such as fault type fault codes and the like is used for overhauling.
Further, in consideration of the fact that the detecting section may be erroneously judged as having a failure due to interference of some factors, the present embodiment is provided with an erroneous judgment elimination mechanism in order to ensure the accuracy of judgment. Specifically, if the control attribute of the detecting component is a fault attribute, the step of determining the fault generator corresponding to the detecting component in the generator set includes:
Step b221, if the control attribute of the detecting component is a fault attribute, judging whether the second temperature values are all larger than a preset value within a preset time interval, and judging whether the second temperature values are reduced when a soft reset control instruction is received;
step b222, if the second temperature values are all larger than the preset value within the preset time interval, and the second temperature values are not reduced when the soft reset control instruction is received, judging that a fault generator exists in the generator set;
and step b223, searching for a generator corresponding to the detection component in the generator set, and determining the generator corresponding to the detection component as the fault generator.
Further, a preset time interval and a preset value are preset according to requirements, wherein the preset time interval is used for representing a time period when the detection component is continuously in a fault state, and the preset value is used for representing a numerical value when the temperature value of the detection component is abnormal but the operation of the generator set is not affected. And if the second temperature values of the detection components are all larger than the preset value in the preset time interval, the detection components can be preliminarily judged to have faults. Otherwise, if the value of the second temperature value at any time within the preset time interval is not larger than the preset value, judging that the detecting component has no fault.
In addition, in order to further ensure that the fault determination of the detection component is accurate, the embodiment sets the second determination through a soft reset control instruction, wherein the soft reset control instruction is a reset instruction realized through a program, and the soft reset control instruction can be automatically triggered by a control system or manually triggered by a person. Specifically, after receiving the soft reset control command, the control system detects whether the second temperature value is reduced. If the temperature value falls, the state that the second temperature value is higher than the preset value is related to a control program operated by the generator set, and is irrelevant to the detection component, so that the detection component is judged to be free from faults. Otherwise, if the second temperature value is not reduced after the soft reset control command is received, the fault of the detection component is indicated, and the generator set has a fault generator. And searching the generator provided with the fault detection component in the generator set, wherein the searched generator is the fault generator in the generator set, so that the fault generator corresponding to the fault detection component in the generator set is determined.
According to the embodiment, the second temperature value is larger than the preset value in the preset time interval, and after the soft reset control instruction is received, the fault of the detection part is judged in a mode that the second temperature value is not reduced, so that misjudgment of the detection part is avoided, and accurate determination of the detection part and a fault generator corresponding to the detection part is facilitated.
In addition, the embodiment of the invention also provides a readable storage medium.
The readable storage medium stores a control program of the generator set, which when executed by the processor, implements the steps of the control method of the generator set as described above.
The readable storage medium of the present invention may be a computer readable storage medium, and the specific implementation manner of the method is substantially the same as the embodiments of the control method of the generator set described above, and will not be described herein again.
While the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made thereto by those of ordinary skill in the art without departing from the spirit of the present invention and the scope of the appended claims, which are to be accorded the full scope of the present invention as defined by the following description and drawings, or by any equivalent structures or equivalent flow changes, or by direct or indirect application to other relevant technical fields.
Claims (9)
1. The control method of the generator set is characterized by comprising the following steps of:
Acquiring temperature values detected by temperature detection devices arranged on all generators in a generator set, and determining the change trend of each temperature value;
if a first temperature value with a change trend of jump exists in each temperature value, judging that a temperature detection device corresponding to the first temperature value has a fault;
acquiring a shared temperature corresponding to the temperature detection device with the fault in the generator set, and taking the shared temperature as the detection temperature of the temperature detection device with the fault;
the step of obtaining the shared temperature corresponding to the temperature detection device with the fault in the generator set and taking the shared temperature as the detection temperature of the temperature detection device with the fault comprises the following steps:
determining a target component detected by the temperature detection device with faults, and acquiring a corresponding target temperature value of the target component on each generator;
removing the first temperature value from each target temperature value, carrying out average processing on each removed target temperature value to generate the sharing temperature,
the shared temperature is assigned to the temperature detecting device having the failure as a detected temperature of the temperature detecting device having the failure.
2. The method of controlling a generator set according to claim 1, wherein the step of taking the shared temperature as the detected temperature of the temperature detecting means having a failure includes:
and displaying the detected temperature based on the temperature detection device with the fault, and outputting maintenance prompt information based on the temperature detection device with the fault.
3. The method of controlling a generator set according to claim 1, wherein the step of determining a trend of change in each of the temperature values includes:
monitoring the corresponding change value of each temperature value within a preset time period, and judging each temperature value one by one:
if the change value corresponding to the temperature value is continuously increased, determining that the change trend of the temperature value is increased;
if the change value corresponding to the temperature value is floating change in a preset reference range, determining that the change trend of the temperature value is stable;
and if the change value corresponding to the temperature value is floating change within a preset threshold range, determining that the change trend of the temperature value is jump.
4. A control method of a generator set as set forth in claim 3, wherein said step of determining a trend of change in each of said temperature values includes, after:
If a second temperature value with the change trend rising exists in each temperature value, determining a detection component corresponding to the second temperature value;
and controlling the generator set according to the control attribute of the detection part.
5. The method of controlling a generator set according to claim 4, wherein the step of controlling the generator set according to the control attribute of the detecting means includes:
if the control attribute of the detection part is a shutdown attribute, performing shutdown processing on the generator set;
if the control attribute of the detection component is a fault attribute, determining a fault generator corresponding to the detection component in the generator set, and outputting fault prompt information based on the fault generator and the detection component.
6. The method of controlling a generator set according to claim 5, wherein the step of performing a shutdown process on the generator set if the control attribute of the detecting means is a shutdown attribute comprises:
if the control attribute of the detection component is a shutdown attribute, comparing the second temperature value with a preset alarm interval;
and if the second temperature value is larger than the upper boundary value of the preset alarm interval, stopping the generator set.
7. The method according to claim 5, wherein the step of determining a faulty generator corresponding to the detecting means in the generator set if the control attribute of the detecting means is a faulty attribute includes:
if the control attribute of the detection part is a fault attribute, judging whether the second temperature values are all larger than a preset value in a preset time interval, and judging whether the second temperature values are reduced when a soft reset control instruction is received;
if the second temperature values are all larger than the preset value within the preset time interval and the second temperature values are not reduced when the soft reset control instruction is received, judging that a fault generator exists in the generator set;
and searching a generator corresponding to the detection component in the generator set, and determining the generator corresponding to the detection component as the fault generator.
8. A control device of a generator set, characterized in that the control device of a generator set comprises a memory, a processor and a control program of a generator set stored on the memory and being executable on the processor, which control program of a generator set, when being executed by the processor, carries out the steps of the control method of a generator set according to any one of claims 1-7.
9. A readable storage medium, characterized in that the readable storage medium has stored thereon a control program of a generator set, which when executed by a processor, implements the steps of the control method of a generator set according to any of claims 1-7.
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