CN107959450B - Generator set distribution control method for Antarctic astronomical guarantee platform - Google Patents
Generator set distribution control method for Antarctic astronomical guarantee platform Download PDFInfo
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- CN107959450B CN107959450B CN201711282709.5A CN201711282709A CN107959450B CN 107959450 B CN107959450 B CN 107959450B CN 201711282709 A CN201711282709 A CN 201711282709A CN 107959450 B CN107959450 B CN 107959450B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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Abstract
The invention discloses a distribution control method of generator sets of a south pole astronomical security platform, which is characterized in that a state bit, a control bit and a sensor state bit are distributed for each generator set of the platform, the state bit and the control bit of the generator set and the state bits of other generator sets determine the action of each generator set, and the sensor state bit of each generator set determines the judgment basis of whether the starting of the generator set is successful and whether a fault occurs in the operation process. The method simultaneously allocates a state bit for each control logic of the generator set, and the control logic state bit determines whether the control logic is executed and the execution strength during system operation. And intervening the working state, executing action and executing action of each generator set in real time through the distributed control of each generator set. The invention can realize the unattended operation of the Antarctic astronomy guarantee platform generator set in the extremely low temperature and low pressure environment, and provides continuous, stable and reliable energy power for the long-term operation of the platform.
Description
Technical Field
The invention relates to a generator set distribution control method, in particular to a generator set distribution control method of a south pole astronomical guarantee platform.
Background
The Antarctic astronomical guarantee platform provides energy power, communication and data transmission for astronomical observation at the Antarctic Dome A, and guarantees the operation environment of observation equipment. Because the Dome A is in a very special and severe geographical environment, the Antarctic astronomical guarantee platform can only be maintained by Antarctic research team for about twenty days every year, the rest time is in a long-term unattended operation state, and the Antarctic astronomical guarantee platform is a basic guarantee platform of astronomical observation equipment, so that the continuous, stable and reliable energy power is a key for ensuring the long-term, reliable and autonomous operation of platform machine astronomical instrument equipment in a very cold and low-pressure environment in the highland.
The Antarctic astronomical guarantee platform adopts a generator set to generate electricity, and the generator set and a control system thereof inevitably have faults when the generator set runs unattended for a long time in extremely cold, low-pressure and anoxic environments in plateaus. In order to ensure the reliability of the system, the system is provided with a plurality of generator sets for redundancy so as to ensure that other generator sets are started when a certain generator set fails and ensure the stable supply of electric power. On the control mode of a plurality of generator sets, the currently adopted mode mainly comprises two modes of local observation remote control and local observation and control: the local observation remote control is to monitor locally, when a certain unit is found to be in fault, alarm information is sent to a manual monitoring platform through iridium communication, an instruction is sent out through manual judgment and remote control, and another engine unit is started; local observation and control is to monitor locally and switch autonomously. The first mode adopts a remote manual switching mode, is very easily influenced by iridium satellite communication effect, has lag reaction and has high requirement on monitoring personnel; and the second mode adopts a local autonomous control mode, so that the burden of monitoring personnel is reduced, the reaction is flexible, but under the severe condition of extremely low temperature of the south Pole Dome A, instrument equipment, particularly various sensors are easily damaged, errors of various observation data or unavailable results in errors of local judgment, and even the stable operation of the platform is threatened.
Disclosure of Invention
The invention aims to provide a distribution control method of a generator set of a south pole astronomical guarantee platform, and the reliability and stability of the operation of the generator set of the south pole astronomical guarantee platform are improved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a generator set distribution control method of a south pole astronomical security platform is characterized by comprising the following steps:
the method comprises the following steps: each generator set is provided with an independent state bit, a control bit and a sensor state bit;
step two: the fault monitoring of each generator set, the control logics of monitoring and fault processing of each power supply line are mutually independent, the state bit of each control logic is set, and whether the control logic is executed or not is determined;
step three: resetting the system, wherein the state bit, the control bit and the sensor state bit of each generator set recover the initial values, and the state bit of each control logic recovers the initial values;
step four: according to the state bit and the control bit of the generator set and the state bits of the other generator sets, each generator set executes corresponding actions;
step five: according to the sensor state bit of each generator set, each generator set executes corresponding generator set state judgment logic;
step six: according to the state bit of each control logic, each instrument and equipment, line inspection and fault processing execute a corresponding control method;
step seven: the state bit of each generator set, the control bit and the sensor state bit, and the state bit of each control logic provides a remote real-time modification interface.
Further, the status bits include a shutdown status, a startup status, an operation status, and a fault status.
Further, the control bits include startup, fault detection, and shutdown.
Further, the sensor status bit comprises four working states, namely normal reading of the voltage sensor and normal reading of the current sensor, abnormal reading of the voltage sensor and abnormal reading of the current sensor, and abnormal reading of the voltage sensor and the current sensor.
Furthermore, the starting state comprises four stages of a super capacitor detection and charging stage, a preheating stage, an accelerator operation stage and an ignition stage, the four stages are sequentially carried out, and after the execution of each stage is finished, the generator set updates a state bit and a control bit.
Further, the operation state comprises three stages of no-load operation, grid connection and load loading, the three stages are sequentially carried out, and after the execution of each stage is finished, the generator set updates the state bit and the control bit.
Further, the fault state is specifically that after the generator set is successfully started, fault monitoring is carried out, after a fault occurs, the fault generator set is closed, the state bit and the control bit of the fault generator set are updated, judgment is carried out according to the state bits of the rest generator sets, if another generator set is in a normal operation state of successful start, the generator set carries out grid connection and load loading again, and the state bit and the control bit are updated; otherwise, starting a generator set.
Furthermore, the four working states of the sensor status bit correspond to the control method that,
when the sensor state of the generator set is that the readings of the voltage sensor and the current sensor are normal, the judgment standard of whether the generator set is started successfully in the starting stage of the generator set is that whether the voltage output value and the current output value of the generator set reach the lowest value of the normal starting of the generator set, and if the voltage output value and the current output value are smaller than the lowest value, the generator set is considered to be not started successfully; the standard of the fault monitoring of the generator set is whether the voltage output value of the generator set is smaller than the minimum voltage required by work or whether the lubricating oil liquid level of the generator set is lower than an alarm line, and if the voltage output value is smaller than the minimum voltage required by work or the lubricating oil liquid level of the generator set is lower than the alarm line, a fault is considered to occur;
when the sensor state of the generator set is that the reading of the voltage sensor is normal and the reading of the current sensor is abnormal, the judgment standard of whether the generator set is started successfully in the starting stage of the generator set is that whether the voltage output value of the generator set reaches the lowest value of the normal starting of the generator set, and if the voltage output value of the generator set is smaller than the lowest value, the generator set is considered to be not started successfully; the standard of the fault monitoring of the generator set is whether the voltage output value of the generator set is smaller than the minimum voltage required by work or whether the lubricating oil liquid level of the generator set is lower than an alarm line, and if the voltage output value is smaller than the minimum voltage required by work or the lubricating oil liquid level of the generator set is lower than the alarm line, a fault is considered to occur;
when the sensor state of the generator set is that the reading of the voltage sensor is abnormal and the reading of the current sensor is normal, the judgment standard of whether the generator set is started successfully in the starting stage of the generator set is that whether the current output value of the generator set reaches the lowest value of the normal starting of the generator set, and if the current output value of the generator set is smaller than the lowest value, the generator set is considered to be not started successfully; the standard of the fault monitoring of the generator set is whether the current output value of the generator set is smaller than the minimum current for the normal work of the generator set or whether the lubricating oil liquid level of the generator set is lower than an alarm line, and if the current output value is smaller than the minimum current for the normal work of the generator set or the lubricating oil liquid level of the generator set is lower than the alarm line, the fault is considered to occur;
when the sensor state of the generator set is that the readings of the voltage sensor and the current sensor are abnormal, the generator set is started successfully by default in the starting stage of the generator set; the standard of generator set fault monitoring is only whether the level of the lubricating oil of the generator set is lower than an alarm line, and if the level of the lubricating oil of the generator set is lower than the alarm line, the fault is considered.
Compared with the prior art, the invention has the following advantages and effects: aiming at a plurality of generator sets of a south pole astronomy guarantee platform, a distributed control method is adopted, when a system runs, fault detection is carried out on the running generator sets, if faults occur, the real-time states of the rest generator sets are judged, if another generator set is in a normal running state of successful starting, the generator set carries out synchronization and load again, and a state bit and a control bit are updated; otherwise, starting a generator set. In consideration of the extremely high damage rate of various sensors in the severe working environment of the south Pole, the method can change the judgment conditions of successful starting and fault detection of the generator set by remotely modifying the state values of the sensors of the generator set, and can abandon part of control means by updating the state values of various control logics under the extremely poor condition without causing larger hidden troubles. The method gives consideration to the real-time states of all the generator sets for controlling the generator sets, can seamlessly connect remote control operation, provides a remote modification interface for each state value and each control value, and has a large remote manual adjustment space on the basis of autonomous operation so as to guarantee the stability and the reliability of the platform.
Detailed Description
The present invention is further illustrated by the following examples, which are illustrative of the present invention and are not to be construed as being limited thereto.
The invention discloses a generator set distribution control method of a south pole astronomical security platform, which comprises the following steps of:
the method comprises the following steps: each generator set is provided with an independent state bit, a control bit and a sensor state bit; the state bit of the generator set represents the current working state of the generator set, and comprises four major categories of a shutdown state, a starting state, an operation state and a fault state; the control bit of the generator set indicates the next operation of the generator set, including three major categories of starting, fault detection and shutdown; the sensor state bit of the generator set is used for measuring the working states of a current sensor and a voltage sensor of the generator set, and comprises four states: both the voltage sensor and the current sensor read normally, the voltage sensor read normally and the current sensor read differently, the voltage sensor read differently and the current sensor read normally, and both the voltage sensor and the current sensor read abnormally.
The starting state comprises four stages of super capacitor detection and charging, preheating, accelerator operation and ignition, wherein the four stages are sequentially carried out, and after the execution of each stage is finished, the generator set updates the state bit and the control bit.
The running state comprises three stages of no-load running, grid connection and load loading, the three stages are sequentially carried out, and after the execution of each stage is finished, the generator set updates the state bit and the control bit.
The fault state is specifically that after the generator set is started successfully, fault monitoring is carried out, after a fault occurs, the fault generator set is closed, the state bit and the control bit of the fault generator set are updated, judgment is carried out according to the state bits of the other generator sets, if another generator set is in a normal operation state of successful starting, the generator set executes grid connection and load loading again, and the state bit and the control bit are updated; otherwise, starting a generator set.
Step two: the fault monitoring of each generator set, the control logics of monitoring and fault processing of each power supply line are mutually independent, the state bit of each control logic is set, and whether the control logic is executed or not is determined;
step three: resetting the system, wherein the state bit, the control bit and the sensor state bit of each generator set recover the initial values, and the state bit of each control logic recovers the initial values;
step four: according to the state bit and the control bit of the generator set and the state bits of the other generator sets, each generator set executes corresponding actions;
step five: according to the sensor state bit of each generator set, each generator set executes corresponding generator set state judgment logic;
the four working states of the sensor state bit correspond to the control method that,
when the sensor state of the generator set is that the readings of the voltage sensor and the current sensor are normal, the judgment standard of whether the generator set is started successfully in the starting stage of the generator set is that whether the voltage output value and the current output value of the generator set reach the lowest value of the normal starting of the generator set, and if the voltage output value and the current output value are smaller than the lowest value, the generator set is considered to be not started successfully; the standard of the fault monitoring of the generator set is whether the voltage output value of the generator set is smaller than the minimum voltage required by work or whether the lubricating oil liquid level of the generator set is lower than an alarm line, and if the voltage output value is smaller than the minimum voltage required by work or the lubricating oil liquid level of the generator set is lower than the alarm line, a fault is considered to occur;
when the sensor state of the generator set is that the reading of the voltage sensor is normal and the reading of the current sensor is abnormal, the judgment standard of whether the generator set is started successfully in the starting stage of the generator set is that whether the voltage output value of the generator set reaches the lowest value of the normal starting of the generator set, and if the voltage output value of the generator set is smaller than the lowest value, the generator set is considered to be not started successfully; the standard of the fault monitoring of the generator set is whether the voltage output value of the generator set is smaller than the minimum voltage required by work or whether the lubricating oil liquid level of the generator set is lower than an alarm line, and if the voltage output value is smaller than the minimum voltage required by work or the lubricating oil liquid level of the generator set is lower than the alarm line, a fault is considered to occur;
when the sensor state of the generator set is that the reading of the voltage sensor is abnormal and the reading of the current sensor is normal, the judgment standard of whether the generator set is started successfully in the starting stage of the generator set is that whether the current output value of the generator set reaches the lowest value of the normal starting of the generator set, and if the current output value of the generator set is smaller than the lowest value, the generator set is considered to be not started successfully; the standard of the fault monitoring of the generator set is whether the current output value of the generator set is smaller than the minimum current for the normal work of the generator set or whether the lubricating oil liquid level of the generator set is lower than an alarm line, and if the current output value is smaller than the minimum current for the normal work of the generator set or the lubricating oil liquid level of the generator set is lower than the alarm line, the fault is considered to occur;
when the sensor state of the generator set is that the readings of the voltage sensor and the current sensor are abnormal, the generator set is started successfully by default in the starting stage of the generator set; the standard of generator set fault monitoring is only whether the level of the lubricating oil of the generator set is lower than an alarm line, and if the level of the lubricating oil of the generator set is lower than the alarm line, the fault is considered.
Step six: according to the state bit of each control logic, each instrument and equipment, line inspection and fault processing execute a corresponding control method;
step seven: the state bit of each generator set, the control bit and the sensor state bit, and the state bit of each control logic provides a remote real-time modification interface.
Aiming at a plurality of generator sets of a south pole astronomy guarantee platform, a distributed control method is adopted, when a system runs, fault detection is carried out on the running generator sets, if faults occur, the real-time states of the rest generator sets are judged, if another generator set is in a normal running state of successful starting, the generator set carries out synchronization and load again, and a state bit and a control bit are updated; otherwise, starting a generator set. In consideration of the extremely high damage rate of various sensors in the severe working environment of the south Pole, the method can change the judgment conditions of successful starting and fault detection of the generator set by remotely modifying the state values of the sensors of the generator set, and can abandon part of control means by updating the state values of various control logics under the extremely poor condition without causing larger hidden troubles. The method gives consideration to the real-time states of all the generator sets for controlling the generator sets, can seamlessly connect remote control operation, provides a remote modification interface for each state value and each control value, and has a large remote manual adjustment space on the basis of autonomous operation so as to guarantee the stability and the reliability of the platform.
The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (1)
1. A generator set distribution control method of a south pole astronomical security platform is characterized by comprising the following steps:
the method comprises the following steps: each generator set is provided with an independent state bit, a control bit and a sensor state bit; the state bit comprises a shutdown state, a starting state, an operating state and a fault state; the control bit comprises starting, fault detection and shutdown; the sensor status bit comprises four working states, namely normal reading of the voltage sensor and normal reading of the current sensor, abnormal reading of the voltage sensor and abnormal reading of the current sensor;
the starting state comprises four stages of a super capacitor detection and charging stage, a preheating stage, an accelerator operation stage and an ignition stage, the four stages are sequentially carried out, and after the execution of each stage is finished, the generator set updates a state bit and a control bit;
the running state comprises three stages of no-load running, grid connection and load loading, the three stages are sequentially carried out, and after the execution of each stage is finished, the generator set updates a state bit and a control bit;
the fault state is specifically that after the generator set is started successfully, fault monitoring is carried out, after a fault occurs, the fault generator set is closed, the state bit and the control bit of the fault generator set are updated, judgment is carried out according to the state bits of the other generator sets, if another generator set is in a normal operation state of successful starting, the generator set executes grid connection and load loading again, and the state bit and the control bit are updated; otherwise, starting a generator set;
step two: the fault monitoring of each generator set, the control logics of monitoring and fault processing of each power supply line are mutually independent, the state bit of each control logic is set, and whether the control logic is executed or not is determined;
step three: resetting the system, wherein the state bit, the control bit and the sensor state bit of each generator set recover the initial values, and the state bit of each control logic recovers the initial values;
step four: according to the state bit and the control bit of the generator set and the state bits of the other generator sets, each generator set executes corresponding actions;
the sensor status bit comprises four working states, namely normal reading of the voltage sensor and normal reading of the current sensor, abnormal reading of the voltage sensor and abnormal reading of the current sensor;
the four working states of the sensor state bit correspond to a control method that,
when the sensor state of the generator set is that the readings of the voltage sensor and the current sensor are normal, the judgment standard of whether the generator set is started successfully in the starting stage of the generator set is that whether the voltage output value and the current output value of the generator set reach the lowest value of the normal starting of the generator set, and if the voltage output value and the current output value are smaller than the lowest value, the generator set is considered to be not started successfully; the standard of the fault monitoring of the generator set is whether the voltage output value of the generator set is smaller than the minimum voltage required by work or whether the lubricating oil liquid level of the generator set is lower than an alarm line, and if the voltage output value is smaller than the minimum voltage required by work or the lubricating oil liquid level of the generator set is lower than the alarm line, a fault is considered to occur;
when the sensor state of the generator set is that the reading of the voltage sensor is normal and the reading of the current sensor is abnormal, the judgment standard of whether the generator set is started successfully in the starting stage of the generator set is that whether the voltage output value of the generator set reaches the lowest value of the normal starting of the generator set, and if the voltage output value of the generator set is smaller than the lowest value, the generator set is considered to be not started successfully; the standard of the fault monitoring of the generator set is whether the voltage output value of the generator set is smaller than the minimum voltage required by work or whether the lubricating oil liquid level of the generator set is lower than an alarm line, and if the voltage output value is smaller than the minimum voltage required by work or the lubricating oil liquid level of the generator set is lower than the alarm line, a fault is considered to occur;
when the sensor state of the generator set is that the reading of the voltage sensor is abnormal and the reading of the current sensor is normal, the judgment standard of whether the generator set is started successfully in the starting stage of the generator set is that whether the current output value of the generator set reaches the lowest value of the normal starting of the generator set, and if the current output value of the generator set is smaller than the lowest value, the generator set is considered to be not started successfully; the standard of the fault monitoring of the generator set is whether the current output value of the generator set is smaller than the minimum current for the normal work of the generator set or whether the lubricating oil liquid level of the generator set is lower than an alarm line, and if the current output value is smaller than the minimum current for the normal work of the generator set or the lubricating oil liquid level of the generator set is lower than the alarm line, the fault is considered to occur;
when the sensor state of the generator set is that the readings of the voltage sensor and the current sensor are abnormal, the generator set is started successfully by default in the starting stage of the generator set; the standard of the fault monitoring of the generator set is only whether the lubricating oil level of the generator set is lower than an alarm line or not, and if the lubricating oil level of the generator set is lower than the alarm line, the fault is considered to occur;
step five: according to the sensor state bit of each generator set, each generator set executes corresponding generator set state judgment logic;
step six: according to the state bit of each control logic, each instrument and equipment, line inspection and fault processing execute a corresponding control method;
step seven: the state bit of each generator set, the control bit and the sensor state bit, and the state bit of each control logic provides a remote real-time modification interface.
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| CN104238467A (en) * | 2013-06-07 | 2014-12-24 | 高邮市科特电机制造有限公司 | Remote centralized control system for distributed power generator sets |
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| CN104238467A (en) * | 2013-06-07 | 2014-12-24 | 高邮市科特电机制造有限公司 | Remote centralized control system for distributed power generator sets |
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