CN111338278A - Intelligent ship power station automatic control system and method - Google Patents
Intelligent ship power station automatic control system and method Download PDFInfo
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- CN111338278A CN111338278A CN202010123358.9A CN202010123358A CN111338278A CN 111338278 A CN111338278 A CN 111338278A CN 202010123358 A CN202010123358 A CN 202010123358A CN 111338278 A CN111338278 A CN 111338278A
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
Abstract
The invention relates to an automatic control system and method for an intelligent ship power station, wherein the system comprises: the system comprises an information integration platform, a PLC, an HMI, power transformation equipment, an electric load and a sensor. The system provided by the invention can monitor the running state of the generator used by the intelligent ship, can send out alarm signals in time when the generator runs at overspeed and runs at overload, and is decided by the information integration platform of the intelligent ship. The generator used by the intelligent ship can be automatically started and stopped in an unmanned control state, the risk of misoperation possibly caused by manual control is reduced, and the stability of intelligent ship power station control is improved. The intelligent ship can automatically increase or reduce the working quantity of the generator according to the real-time condition of the load, reasonably allocate power and save the use of fuel resources.
Description
Technical Field
The invention relates to the technical field of intelligent ship design, in particular to an automatic control system and method for an intelligent ship power station.
Background
With the development of the fourth industrial revolution wave, the intellectualization and networking become the trend and trend of the current scientific and technical development. The concept of the intelligent ship is also put forward in the ship field, and the development of the intelligent ship requires that the ship can realize higher-degree automatic control and intelligent control.
At present, ships increasingly use electric energy to drive and control equipment, so that power stations are more and more commonly built on the ships. The power station is the core of the ship and its power system, and the automation of the ship power station is an important component of the automation of the ship engine room. Whether the automatic and intelligent control of the ship power station can be realized is an important factor and a prerequisite for restricting the development of intelligent ships.
At present, the development of the automation of the ship power station is slow, and no automatic control system of the ship power station which is completely separated from manual control is provided.
Disclosure of Invention
Technical problem to be solved
In order to solve the above problems, the present invention provides an automatic control system and method for an intelligent ship power station.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
a smart marine power plant automation control system, the system comprising: the system comprises an information integration platform (1), a Programmable Logic Controller (PLC) (2), a human-machine interface (HMI) (3), power transformation equipment, an electric load and a sensor;
the PLC (2) is respectively connected with the information integration platform (1), the HMI (3), the sensor and the generator;
the sensor is also connected with the information integration platform (1) and the generator;
the generator is also connected with the power conversion equipment;
the power conversion equipment is also connected with the power load;
the information integration platform (1) is used for displaying attribute information of the generator and making a decision on the working mode of the generator according to the data of the generator acquired by the sensor;
the PLC (2) is used for controlling the generator according to the decision of the information integration platform (1);
the HMI (3) is used for displaying attribute information of the generator when the generator fails;
the power conversion equipment is used for converting power parameters output by the generator;
the power utilization load is used for controlling the intelligent ship;
the sensor is used for acquiring data of the generator.
Optionally, the electricity load includes one or more of the following: the device comprises a side push (6), an anchor machine (7) and a steering engine (8);
the side push (6) is used for controlling the direction and steering operation of the intelligent ship when the intelligent ship sails at a low speed or is at a berth;
the anchor machine (7) is used for anchoring the intelligent ship and performing emergency steering and collision prevention operation;
and the steering engine (8) is used for controlling the direction and steering operation of the intelligent ship in the normal navigation process.
Optionally, the sensor comprises at least one or more of: a voltage and current signal sensor (9), a temperature sensor (10), a frequency meter (11) and a rotating speed sensor (12);
the voltage and current signal sensor (9) is used for collecting the output voltage and current of the generator;
the temperature sensor (10) is used for collecting the temperature of the generator in the operation process;
the frequency meter (11) is used for collecting frequency information of the output power of the generator;
and the rotating speed sensor (12) is used for acquiring rotating speed information in the running process of the generator.
Optionally, the power conversion device comprises one or more of: a frequency converter (4) and a transformer (5);
the frequency converter (4) is used for carrying out frequency conversion on the electric power output by the generator;
the transformer (5) is used for converting the voltage output by the generator.
Optionally, the information integration platform (1) supports an ethernet data interface and an RS485 data interface;
the PLC (2) supports an Ethernet data interface and an analog output interface;
the information integration platform (1) and the PLC (2) adopt Ethernet communication;
the HMI (3) supports an Ethernet data interface;
the HMI (3) and the PLC (2) adopt Ethernet communication;
the PLC (2) is connected with the generator through the analog quantity output interface;
the generator is electrically connected with the power conversion equipment;
the sensor is arranged beside the diesel generator on the generator through mechanical connection or electrical connection;
and the sensor transmits the acquired data to the information integration platform (1) through the RS485 data interface.
Optionally, the PLC (2) further supports one or more of the following interfaces: the device comprises a serial port, an analog quantity input interface, a digital quantity input interface and a digital quantity output interface.
In order to achieve the above purpose, the main technical solution adopted by the present invention further comprises:
a control method of a smart marine vessel power plant automation control system, the method comprising:
when the intelligent ship starts to sail, whether a first generator is started or not is judged;
if the first generator is started, a main switch is turned on, and whether the first generator is finished with a spare vehicle is judged; if the first generator is not started, the generator continues to be used for standby;
if the first generator finishes the standby operation, starting the first generator; if the first generator is not finished with the standby vehicle, continuing the standby vehicle of the first generator, and executing the step of judging whether the standby vehicle of the first generator is finished or not in a first fixed period;
judging whether to add a generator or not in a second fixed period under the condition that the first generator normally operates;
if the generator is added, judging whether the added generator is finished by the standby vehicle; if the generator is not added, the generator continues to be equipped with the vehicle;
if the added generators are equipped with the vehicles, the added generators are started; and if the added generators are not finished with the standby vehicle, continuing to carry out the added generators with the standby vehicle, and executing the step of judging whether the added generators are finished with the standby vehicle or not in a third fixed period.
Optionally, after the starting of the first generator, the method further includes:
determining whether the started generator meets a parallel operation condition;
if the started generators meet the parallel operation condition, the generators are started to be parallel operated and maintain stable operation; if the started generator does not meet the parallel operation condition, adjusting the voltage, the frequency and the phase of the second generator, and executing the step of determining whether the started generator meets the parallel operation condition or not in a fourth fixed period;
after the generators are combined, judging whether the number of the generators is reduced or not according to the load;
and if the number of the generators is reduced, splitting the generator to be split.
Optionally, if there are multiple started generators, the splitting the generator to be split includes:
determining whether the load on the generator to be disconnected is 0;
if the load on the generator to be disconnected is 0, disconnecting the generator to be disconnected;
and if the load on the generator to be disconnected is not 0, adjusting and transferring the load, and executing the step of judging whether the load on the generator to be disconnected is 0 or not in a fifth fixed period in the adjusting and transferring process.
Optionally, if 1 started generator is provided, the splitting the generator to be split includes:
after receiving a parking instruction, judging whether the parking condition of the generator is met;
if the stopping condition of the generator is met, stopping the started generator;
and if the parking condition is not met, adjusting the load, and executing the step of judging whether the parking condition of the generator is met or not at a sixth fixed period.
(III) advantageous effects
The invention has the beneficial effects that: the system comprises: the intelligent ship power supply system comprises an information integration platform, a PLC, an HMI, a power transformation device, an electric load and a sensor, can monitor the running state of a generator used by an intelligent ship, can timely send out an alarm signal when the generator runs at an overspeed and runs at an overload, and is decided by the information integration platform of the intelligent ship. The generator used by the intelligent ship can be automatically started and stopped in an unmanned control state, the risk of misoperation possibly caused by manual control is reduced, and the stability of intelligent ship power station control is improved. The intelligent ship can automatically increase or reduce the working quantity of the generator according to the real-time condition of the load, reasonably allocate power and save the use of fuel resources.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent ship power station automation control system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of another intelligent ship power station automation control system according to an embodiment of the present application;
fig. 3 is a schematic flowchart of an automatic control method for an intelligent ship power station according to an embodiment of the present disclosure.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
At present, ships increasingly use electric energy to drive and control equipment, so that power stations are more and more commonly built on the ships. The power station is the core of the ship and its power system, and the automation of the ship power station is an important component of the automation of the ship engine room. Whether the automatic and intelligent control of the ship power station can be realized is an important factor and a prerequisite for restricting the development of intelligent ships.
At present, the development of the automation of the ship power station is slow, and no automatic control system of the ship power station which is completely separated from manual control is provided.
Based on the technical scheme, the invention provides an automatic control system and method for an intelligent ship power station, which can solve the technical blank problem in the design aspect of the automatic unmanned control system for the intelligent ship power station. The problem of intelligent boats and ships under automatic control state, the opening of intelligent boats and ships power station generator is stopped is solved. The problem of intelligent ship power station generator according to the required generator quantity of load condition automatic adaptation is solved under the automatic control state of intelligent ship. The problem of intelligent ship power station generator automatically distributed power according to load type under the automatic control state is solved.
Referring to fig. 1, the intelligent ship power station automatic control system provided in this embodiment includes: the system comprises an information integration platform, a Programmable Logic Controller (PLC), a Human Machine Interface (HMI), power conversion equipment, an electric load and a sensor.
Wherein, PLC is connected with information integration platform, HMI, sensor and generator respectively.
The sensor is also connected with the information integration platform and the generator.
The generator is also connected to the power conversion device.
The power conversion device is also connected to an electrical load.
And the information integration platform is used for displaying the attribute information of the generator and making a decision on the working mode of the generator according to the data of the generator acquired by the sensor.
During specific implementation, the information integration platform is used for displaying information such as current, voltage, frequency and rotating speed of the controlled generator, an intelligent ship decision algorithm is carried in the information integration platform, and decision can be made on the working mode of the controlled motor according to data information such as current, voltage, frequency and rotating speed of the controlled generator collected by a sensor.
And the PLC is used for controlling the generator according to the decision of the information integration platform.
During specific implementation, a PLC control program is carried in the PLC, and operations such as starting and stopping of the generator carried by the intelligent ship are specifically controlled according to decision information of the information integration platform.
And the HMI is used for displaying the attribute information of the generator when the generator fails.
The HMI is a common upper computer of the PLC, is usually used for visually displaying related data information of a controlled object and manually controlling the controlled object to a controller beside a machine, and is used for displaying data information of current, voltage, frequency, rotating speed and the like of a generator to a maintainer when the intelligent ship generator breaks down and needs to be manually maintained.
And the power conversion equipment is used for converting the power parameters output by the generator.
And the power utilization load is used for controlling the intelligent ship.
And the sensor is used for acquiring data of the generator.
In addition, the information integration platform supports an Ethernet data interface and an RS485 data interface.
The PLC supports an Ethernet data interface and an analog output interface. In addition, the PLC may support, but is not limited to, one or more of the following interfaces: the device comprises a serial port, an analog quantity input interface, a digital quantity input interface and a digital quantity output interface.
And the information integration platform and the PLC are communicated by adopting Ethernet.
The HMI supports an ethernet data interface.
The HMI and the PLC adopt Ethernet communication.
The PLC is connected with the generator through an analog output interface.
The generator is electrically connected with the power conversion equipment.
The sensor is arranged beside the diesel generator on the generator through mechanical connection or electrical connection.
The sensor transmits the collected data to the information integration platform through the RS485 data interface.
In particular practice, the electrical load may include one or more of the following: side push, anchor machine, steering engine.
And the side push is used for direction control and steering operation of the intelligent ship during low-speed navigation or berthing.
The side-push is one of electric loads for the intelligent ship, and is used for direction control and steering operation of the intelligent ship during low-speed navigation or berthing.
The anchor machine is used for anchoring the intelligent ship and performing emergency steering and collision avoidance operations.
The anchor machine is one of the electric loads for the intelligent ship and is used for anchoring the intelligent ship and performing emergency steering and collision prevention operations.
And the steering engine is used for controlling the direction and steering operation of the intelligent ship in the normal navigation process.
The steering engine is one of electric loads for the intelligent ship and is used for direction control and steering operation in the normal navigation process of the intelligent ship.
The sensors may include at least, but are not limited to, one or more of the following: voltage and current signal sensor, temperature sensor, frequency meter, tachometer.
And the voltage and current signal sensor is used for acquiring the output voltage and current of the generator.
The voltage and current signal sensor is one of sensing devices of an automatic control system of the intelligent ship power station, and is used for measuring the output voltage and current of the generator and providing data information for controlling the work of the generator.
And the temperature sensor is used for acquiring the temperature of the generator in the running process.
The temperature sensor is one of sensing devices of an automatic control system of the intelligent ship power station, is used for sensing and measuring the temperature of the generator in the running process and provides a basis for the information integration platform to judge the working state of the generator.
And the frequency meter is used for acquiring frequency information of the output power of the generator.
The frequency meter is one of sensing devices of an automatic control system of the intelligent ship power station, and is used for measuring frequency information of power output by the generator and providing data information for automatic control of the power station.
And the rotating speed sensor is used for acquiring rotating speed information in the running process of the generator.
The rotating speed sensor is one of sensing devices of an automatic control system of the intelligent ship power station, is used for measuring rotating speed information in the running process of the generator and provides a basis for the integrated information platform to judge the working state of the generator.
The power conversion device may include, but is not limited to, one or more of the following: frequency converter, transformer.
And the frequency converter is used for converting the frequency of the electric power output by the generator.
In the concrete implementation, the frequency converter carries out frequency conversion on the electric power output by the generator, and controls the work of the motor load in a mode of changing the frequency of the working power supply of the motor.
And the transformer is used for converting the voltage output by the generator.
During specific implementation, the transformer transforms the voltage output by the generator, so that the voltage is in accordance with the rated working voltage of the load, and the condition that the load is damaged due to unmatched voltage is avoided.
Finally, the intelligent ship power station automatic control system shown in fig. 2 is formed.
Because the information integration platform supports various data interfaces (including an Ethernet data interface, an RS485 data interface and the like), and the PLC supports a serial port, an Ethernet data interface and input and output of analog quantity and digital quantity, Ethernet communication is adopted between the information integration platform and the PLC.
The HMI supports an Ethernet data interface, and therefore Ethernet communication is used with the PLC.
The PLC is connected with the generator through an analog output interface carried by the PLC, and the generator is controlled.
The generator is electrically connected with the frequency converter and the transformer to realize control, and then the frequency converter and the transformer are controlled to provide electric energy meeting quality requirements for the side push, the steering engine and the anchor machine.
The voltage and current signal sensor, the temperature sensor, the frequency meter and the revolution speed sensor are installed beside a diesel generator on the generator through mechanical/electrical connection, the voltage, the current and the frequency of the electric energy output by the generator and the temperature and the revolution speed of the generator are collected, and the collected data information is transmitted to the information integration platform and the PLC through RS485 communication.
The intelligent ship power station automatic control system provided by the embodiment can perform intelligent ship power station automatic control through the following intelligent ship power station automatic control method.
When the intelligent ship starts to navigate, whether the first generator is started or not is judged.
And if the first generator is started, the main switch is turned on, and whether the first generator is finished with the standby vehicle is judged. If the first generator is not started, the generator continues to be used for standby.
And if the first generator finishes the standby operation, starting the first generator. If the first generator is not finished with the standby vehicle, the standby vehicle of the first generator is continuously carried out, and the step of judging whether the standby vehicle of the first generator is finished or not is executed in a first fixed period.
And under the condition that the first generator normally operates, judging whether to add the generator or not in a second fixed period.
And if the generator is added, judging whether the added generator is completed by the standby vehicle. If the generator is not added, the generator continues to be equipped with the vehicle.
And if the added generator is finished with the vehicle, starting the added generator. And if the added generators are not finished with the standby vehicle, continuing to carry out the added generators with the standby vehicle, and executing the step of judging whether the added generators are finished with the standby vehicle or not in a third fixed period.
In addition, after starting the first generator, it is also possible to:
it is determined whether the started generator satisfies a parallel operation condition.
And if the started generators meet the parallel operation condition, the generators are started to be parallel operated and maintain stable operation. And if the started generator does not meet the parallel operation condition, adjusting the voltage, the frequency and the phase of the second generator, and executing the step of determining whether the started generator meets the parallel operation condition or not at a fourth fixed period.
And after the generators are combined, judging whether the number of the generators is reduced or not according to the load.
And if the number of the generators is reduced, splitting the generator to be split.
When the generator to be disconnected is disconnected, if the number of the started generators is multiple, whether the load on the generator to be disconnected is 0 is determined. And if the load on the generator to be disconnected is 0, disconnecting the generator. And if the load on the generator to be disconnected is not 0, adjusting and transferring the load, and executing the step of judging whether the load on the generator to be disconnected is 0 or not in a fifth fixed period in the adjusting and transferring process.
When the generator to be disconnected is disconnected, if 1 generator is started, judging whether the parking condition of the generator is met after a parking instruction is received. And if the stopping condition of the generator is met, stopping the started generator. And if the parking condition is not met, adjusting the load, and executing the step of judging whether the parking condition of the generator is met or not at a sixth fixed period.
The flow shown in fig. 3 is used to explain the implementation flow of the intelligent ship power station automatic control method provided in this embodiment again.
① when the ship is sailing, it is judged whether the first generator needs to be started, if so, the main switch is turned on (the main switch is the main switch of all the generators, the main switch does not turn on the generators and can not be started), if not, the generators continue to be equipped,
② after the main switch is turned on, it is necessary to determine whether the generator is finished or not, if the generator is finished, the generator is started to maintain the normal operation state, if the generator is not finished, the generator is required to continue to be prepared, and whether the generator is finished or not is determined in a fixed period.
③ under the condition of normal operation of the first generator, it is necessary to judge whether the second generator needs to be started according to the load, if it needs to start the second generator, it is further judged whether the standby of the generator to be started is completed.
④ after the newly added generator is started, it is necessary to determine whether the voltage, frequency and phase of the currently started generator satisfy the parallel operation condition, if so, the generator is parallel operated and keeps stable operation, if not, the voltage, frequency and phase of the newly added generator are adjusted to satisfy the parallel operation condition, and during the adjustment process, it is determined whether the parallel operation condition is satisfied at a fixed period.
⑤ after the parallel operation of the generators, it is necessary to determine whether the number of the generators can be reduced according to the load condition to save fuel resources, if so, determine whether the current number of the generators is one, if not, determine whether the load on the generator to be split has been completely transferred to other generators (i.e., determine whether the load of the generator is 0), if the load on the generator has been completely transferred to other generators, perform the splitting and maintain the normal operation of other generators, if it is determined that the number of the generators cannot be reduced in the process, maintain the original state and continue the stable operation, if it is determined that the current number of the generators is 1, determine the stop command, if it is determined that the load on the generator to be split has not been completely transferred to other generators, perform the load adjustment and transfer, and periodically determine whether the load transfer has been completed in the process.
⑥ when the number of the generators is 1, it is necessary to determine whether a parking instruction is received, if so, it is determined whether the parking condition of the generators is satisfied, and if not, the generators continue to maintain the stable operation in the current state.
⑦ when the generator is judged to satisfy the parking condition, the generator is parked, if the parking condition is not satisfied, the load is adjusted, and whether the parking condition is satisfied is judged at a fixed cycle.
⑧ judging whether new generators need to be added or the number of the current generators can be reduced according to a fixed period in the stable operation process of the generators, and carrying out the next judgment.
The method provided by the embodiment can monitor the running state of the generator used by the intelligent ship, can send out an alarm signal in time when the generator runs at an overspeed and runs at an overload, and is decided by the information integration platform of the intelligent ship. The generator used by the intelligent ship can be automatically started and stopped in an unmanned control state, the risk of misoperation possibly caused by manual control is reduced, and the stability of intelligent ship power station control is improved. The intelligent ship can automatically increase or reduce the working quantity of the generator according to the real-time condition of the load, reasonably allocate power and save the use of fuel resources.
It should be noted that "first", "second", "third", "fourth", "fifth" and "sixth" in the present invention are only used to distinguish different fixed periods, and have no other practical meaning.
Has the advantages that: the system comprises: the intelligent ship power supply system comprises an information integration platform, a PLC, an HMI, a power transformation device, an electric load and a sensor, can monitor the running state of a generator used by an intelligent ship, can timely send out an alarm signal when the generator runs at an overspeed and runs at an overload, and is decided by the information integration platform of the intelligent ship. The generator used by the intelligent ship can be automatically started and stopped in an unmanned control state, the risk of misoperation possibly caused by manual control is reduced, and the stability of intelligent ship power station control is improved. The intelligent ship can automatically increase or reduce the working quantity of the generator according to the real-time condition of the load, reasonably allocate power and save the use of fuel resources.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An intelligent marine vessel power plant automation control system, the system comprising: the system comprises an information integration platform (1), a Programmable Logic Controller (PLC) (2), a human-machine interface (HMI) (3), power transformation equipment, an electric load and a sensor;
the PLC (2) is respectively connected with the information integration platform (1), the HMI (3), the sensor and the generator;
the sensor is also connected with the information integration platform (1) and the generator;
the generator is also connected with the power conversion equipment;
the power conversion equipment is also connected with the power load;
the information integration platform (1) is used for displaying attribute information of the generator and making a decision on the working mode of the generator according to the data of the generator acquired by the sensor;
the PLC (2) is used for controlling the generator according to the decision of the information integration platform (1);
the HMI (3) is used for displaying attribute information of the generator when the generator fails;
the power conversion equipment is used for converting power parameters output by the generator;
the power utilization load is used for controlling the intelligent ship;
the sensor is used for acquiring data of the generator.
2. The system of claim 1, wherein the electrical load comprises one or more of: the device comprises a side push (6), an anchor machine (7) and a steering engine (8);
the side push (6) is used for controlling the direction and steering operation of the intelligent ship when the intelligent ship sails at a low speed or is at a berth;
the anchor machine (7) is used for anchoring the intelligent ship and performing emergency steering and collision prevention operation;
and the steering engine (8) is used for controlling the direction and steering operation of the intelligent ship in the normal navigation process.
3. The system of claim 1, wherein the sensor comprises at least one or more of: a voltage and current signal sensor (9), a temperature sensor (10), a frequency meter (11) and a rotating speed sensor (12);
the voltage and current signal sensor (9) is used for collecting the output voltage and current of the generator;
the temperature sensor (10) is used for collecting the temperature of the generator in the operation process;
the frequency meter (11) is used for collecting frequency information of the output power of the generator;
and the rotating speed sensor (12) is used for acquiring rotating speed information in the running process of the generator.
4. The system of claim 1, wherein the power conversion device comprises one or more of: a frequency converter (4) and a transformer (5);
the frequency converter (4) is used for carrying out frequency conversion on the electric power output by the generator;
the transformer (5) is used for converting the voltage output by the generator.
5. The system according to claim 1, characterized in that the information integration platform (1) supports an ethernet data interface and an RS485 data interface;
the PLC (2) supports an Ethernet data interface and an analog output interface;
the information integration platform (1) and the PLC (2) adopt Ethernet communication;
the HMI (3) supports an Ethernet data interface;
the HMI (3) and the PLC (2) adopt Ethernet communication;
the PLC (2) is connected with the generator through the analog quantity output interface;
the generator is electrically connected with the power conversion equipment;
the sensor is arranged beside the diesel generator on the generator through mechanical connection or electrical connection;
and the sensor transmits the acquired data to the information integration platform (1) through the RS485 data interface.
6. The system of claim 5, wherein the PLC (2) further supports one or more of the following interfaces: the device comprises a serial port, an analog quantity input interface, a digital quantity input interface and a digital quantity output interface.
7. A control method of the intelligent ship power station automation control system based on any one of claims 1 to 6, characterized in that the method comprises:
when the intelligent ship starts to sail, whether a first generator is started or not is judged;
if the first generator is started, a main switch is turned on, and whether the first generator is finished with a spare vehicle is judged; if the first generator is not started, the generator continues to be used for standby;
if the first generator finishes the standby operation, starting the first generator; if the first generator is not finished with the standby vehicle, continuing the standby vehicle of the first generator, and executing the step of judging whether the standby vehicle of the first generator is finished or not in a first fixed period;
judging whether to add a generator or not in a second fixed period under the condition that the first generator normally operates;
if the generator is added, judging whether the added generator is finished by the standby vehicle; if the generator is not added, the generator continues to be equipped with the vehicle;
if the added generators are equipped with the vehicles, the added generators are started; and if the added generators are not finished with the standby vehicle, continuing to carry out the added generators with the standby vehicle, and executing the step of judging whether the added generators are finished with the standby vehicle or not in a third fixed period.
8. The method of claim 7, wherein after said starting said primary generator, further comprising:
determining whether the started generator meets a parallel operation condition;
if the started generators meet the parallel operation condition, the generators are started to be parallel operated and maintain stable operation; if the started generator does not meet the parallel operation condition, adjusting the voltage, the frequency and the phase of the second generator, and executing the step of determining whether the started generator meets the parallel operation condition or not in a fourth fixed period;
after the generators are combined, judging whether the number of the generators is reduced or not according to the load;
and if the number of the generators is reduced, splitting the generator to be split.
9. The method of claim 8, wherein if the number of started generators is multiple, the de-queuing the generator to be de-queued comprises:
determining whether the load on the generator to be disconnected is 0;
if the load on the generator to be disconnected is 0, disconnecting the generator to be disconnected;
and if the load on the generator to be disconnected is not 0, adjusting and transferring the load, and executing the step of judging whether the load on the generator to be disconnected is 0 or not in a fifth fixed period in the adjusting and transferring process.
10. The method of claim 8, wherein if 1 started generator is used, the splitting the generator to be split comprises:
after receiving a parking instruction, judging whether the parking condition of the generator is met;
if the stopping condition of the generator is met, stopping the started generator;
and if the parking condition is not met, adjusting the load, and executing the step of judging whether the parking condition of the generator is met or not at a sixth fixed period.
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| CN202010123358.9A CN111338278A (en) | 2020-02-27 | 2020-02-27 | Intelligent ship power station automatic control system and method |
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