CN216791649U - Ship power system test verification platform - Google Patents
Ship power system test verification platform Download PDFInfo
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- CN216791649U CN216791649U CN202123439018.6U CN202123439018U CN216791649U CN 216791649 U CN216791649 U CN 216791649U CN 202123439018 U CN202123439018 U CN 202123439018U CN 216791649 U CN216791649 U CN 216791649U
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Abstract
The utility model discloses a test verification platform for a ship power system, which belongs to the technical field of ship power systems and comprises a diesel engine, a variable speed generator and a converter, wherein the diesel engine is mechanically connected with the variable speed generator, the variable speed generator is electrically connected with the converter, the converter is electrically connected with a power consumption device through a distribution board, and the diesel engine and the distribution board are respectively electrically connected with a centralized control console. The utility model adopts the combination of the variable-speed generator and the converter, and under the condition of variable speed and variable load, the utility model generates constant-frequency and constant-voltage electric energy for the power consumption device to consume, so that the rotating speed and the load of the diesel engine can be synchronously adjusted, thereby simulating the propulsion characteristic and the power generation characteristic of the diesel engine.
Description
Technical Field
The utility model belongs to the technical field of tests of ship power systems, and particularly relates to a test verification platform for a ship power system.
Background
With the development of ship technology, the requirements on the reliability and economy of a ship power system are higher and higher, the application of a ship intelligent system can realize fault diagnosis, energy efficiency optimization and auxiliary decision suggestion of the ship power system, and the ship operation benefit is improved. The development and verification of the intelligent system need to test and verify different working conditions of the propulsion host and the generator set so as to improve the reliability and robustness of the intelligent system.
A traditional ship power system test verification platform can only test propulsion characteristics or power generation characteristics independently, a propulsion characteristic test platform can only adjust the rotating speed of a diesel engine, and a power generation characteristic test platform can only adjust the load of the diesel engine. The propulsion characteristic test bed generally adopts a diesel engine and hydraulic dynamometer type, and when the rotating speed of the diesel engine is adjusted, the load of the diesel engine changes along with the change of the rotating speed; the power generation characteristic test bed generally adopts the type of a diesel engine, a conventional generator and water/dry load, the load is adjustable, and the rotating speed of the diesel engine is kept constant. If the traditional power system test verification platform is adopted to carry out verification tests on the power generation characteristics and the propulsion characteristics of the diesel engine, two sets of test platforms are needed, and the cost is high.
CN113300422A discloses a hybrid power supply system for ships, comprising: a powertrain system and a control system; the power system is connected with the control system, and both the power system and the control system can be connected to equipment to be powered; a power system, comprising: the power source, the direct current distribution system and the propulsion system are sequentially connected; a control system, comprising: an energy management system, a battery management system and a power control system; the battery management system, the energy management system and the power control system are connected in sequence; the power source is also connected with the battery management system and the energy management system respectively; the direct current distribution system is also respectively connected with the battery management system and the energy management system; the propulsion system is also connected with the power control system; wherein the power source is configured to provide the first electric energy based on the hybrid energy under the management of the battery management system and the energy management system; a hybrid energy source, comprising: any one or more than two kinds of energy sources; the direct current power distribution system is configured to perform alternating current-direct current-alternating current networking power distribution by adopting an alternating current-direct current-mating power distribution mode on the basis of first electric energy provided by the power source under the management of the battery management system and the energy management system to obtain second electric energy; the second electric energy can also supply power to a daily power grid load; and the propulsion system is configured to utilize the second electric energy obtained by the direct-current power distribution system in an alternating-direct-alternating networking mode to propel the equipment to be powered to operate under the control of the power control system. The utility model utilizes the AC-DC-AC hybrid electric power of green energy comprehensively to propel ships, realizes the stable access and switching of energy under different scenes, improves the utilization efficiency of the energy, and reduces the pollutant emission of the ships; through providing the boats and ships hybrid power supply system that can use multiple energy as power, can reduce the environmental pollution that the emission caused in the boats and ships operation produces, be favorable to promoting the environmental protection performance of boats and ships, it does not relate to boats and ships driving system test and verifies.
CN113437741A discloses an energy and health management and control system of a multi-energy power supply system for ships, a ship and a power supply management and control method thereof, the device includes: the energy control system is configured to coordinate operation conditions among the hybrid energy sources in the multi-energy-source power supply system under the conditions of different working conditions and/or different loads so as to realize the cooperative work of all the energy sources in the hybrid energy sources; and the health management system is configured to monitor the equipment state of the hybrid energy in the multi-energy power supply system, and identify and position the fault of the hybrid energy according to the monitored equipment state of the hybrid energy. This scheme carries out the management and control through the different power supplies to in the green multi-energy driving system, is favorable to promoting whole green multi-energy driving system's the reliability of supplying power, and what this utility model was concerned about is green multi-energy driving system, and it does not relate to boats and ships driving system test verification.
CN213689872U discloses a test platform for a marine battery power system, which comprises a first power supply simulation module, a second power supply simulation module, a third power supply simulation module and a fourth power supply simulation module, wherein the first power supply simulation module comprises a plurality of groups of fuel cells and a plurality of groups of lithium cells; the circuit breaker comprises a first direct current bus and a second direct current bus, wherein an isolating switch and a circuit breaker are connected between the first direct current bus and the second direct current bus; the first direct current busbar and the second direct current busbar are electrically connected with the same number of fuel cells and the same number of lithium cells; the load simulation module comprises a motor and a load box, wherein the motor and the load box are electrically connected with the first direct-current bus and/or the second direct-current bus; the motor is used for simulating a ship propulsion motor, and the load box is used for simulating daily load of a ship and various pump loads; the energy management unit is in communication connection with the fuel cell and the lithium battery and is used for regulating and controlling the discharge of the first power supply simulation module according to the running state of the ship simulated by the load simulation module; the utility model discloses a realized providing test platform for the hydrogen fuel cell power system of middle-size and small-size boats and ships. However, it is only suitable for hydrogen fuel cell power systems of small and medium-sized ships.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model provides a test verification platform for a ship power system, which simulates the propulsion characteristic and the power generation characteristic of a diesel engine.
The technical scheme is as follows: in order to achieve the purpose of the utility model, the test verification platform for the ship power system comprises a diesel engine, a variable speed generator and a converter, wherein the diesel engine is mechanically connected with the variable speed generator, and the variable speed generator is electrically connected with the converter; the converter is electrically connected with the power consumption device through the distribution board; the diesel engine and the distribution board are respectively and electrically connected with the centralized control console.
In some embodiments, the output end of the diesel engine is connected with the input end of the variable speed generator through a coupling to drive the variable speed generator to rotate and generate electricity; the variable speed generator converts mechanical energy of the diesel engine into electrical energy.
In some embodiments, the output end of the converter is connected to the input end of a distribution board through a power cable, the output end of the distribution board is connected to the power consumption device through a power cable, and the constant-frequency and constant-voltage electric energy output by the converter is transmitted to the power consumption device through the distribution board.
In some embodiments, the input of the converter is connected to the output of the variable speed generator by a power cable.
In some embodiments, the console is connected to the speed control module and the power distribution board through control cables.
In some embodiments, the speed control module includes a PLC and an I/O module.
In some embodiments, the speed control module is connected to a governor of the diesel engine via a control cable.
In some embodiments, the centralized control console comprises a data acquisition module, the data acquisition module is respectively connected with the diesel engine and the distribution board through signal lines, and the centralized control console monitors the operating parameters of the diesel engine and the distribution board.
In some embodiments, the power consumption device includes a load resistor and a regulating motor, and the central console controls the regulating motor through a button and a relay to realize the regulation of the load resistor.
In some embodiments, the power consuming device is a water resistive load.
Has the advantages that: compared with the prior art, the ship power system test verification platform provided by the utility model adopts the combination of the variable speed generator and the converter, can generate constant-frequency and constant-voltage electric energy under the condition of variable speed and variable load, and is used for power consumption devices to consume, so that the rotating speed and the load of the diesel engine can be synchronously adjusted, the propulsion characteristic and the power generation characteristic of the diesel engine can be simulated, and an intelligent system test can be carried out.
Drawings
FIG. 1 is a system block diagram of an embodiment of a test verification platform of the present invention;
FIG. 2 is a top view of one embodiment of a test validation platform;
FIG. 3 is a graph of the characteristics of a diesel engine that can operate;
FIG. 4 is an electrical system diagram of a marine vessel power system test verification platform;
reference numerals: the system comprises a diesel engine 1, a variable speed generator 2, a converter 3, a distribution board 4, a power consumption device 5, a centralized control console 6 and a rotating speed control module 7.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
As shown in fig. 1 and fig. 2, a test verification platform for a ship power system comprises a diesel engine 1, a variable speed generator 2, a converter 3, a distribution board 4, a power consumption device 5, a centralized control console 6 and a rotating speed control module 7; the diesel engine 1 is mechanically connected with the variable speed generator 2; the variable speed generator 2 is electrically connected with a converter 3, and the converter 3 is electrically connected with a power consumption device 5 through a distribution board 4; the diesel engine 1 and the distribution board 4 are respectively electrically connected with a centralized control console 6.
The utility model provides a combination that boats and ships driving system tests verifies platform adopts variable speed generator 2 and converter 3, can send the electric energy of constant frequency and isopiestic pressure under the variable speed variable load condition for power consumption device 5 consumes, makes 1 rotational speed of diesel engine and load can carry out the synchronization adjustment, thereby simulates 1 propulsion characteristic of diesel engine and electricity generation characteristic, and carries out intelligent system test.
The diesel engine 1 is used as a driving source of a power system test verification platform, and the output end of the diesel engine is mechanically connected with the input end of the variable speed generator 2 through a high-elasticity coupler to drive the variable speed generator 2 to rotate and generate power.
The variable speed generator 2 converts the mechanical energy of the diesel engine 1 into electric energy, and under the condition of changing the rotating speed, the variable speed generator 2 outputs the electric energy with variable frequency and variable voltage.
The converter 3 converts the variable-frequency variable-voltage electric energy generated by the variable-speed generator 2 into constant-frequency constant-voltage electric energy, and the constant-frequency constant-voltage electric energy output by the converter 3 is transmitted to the power consumption device 5 through the distribution board 4.
The input end of the converter 3 is connected with the output end of the variable speed generator 2 through a power cable, and the output end of the converter 3 is connected with the input end of the distribution board 4 through a power cable.
The distribution board 4 mainly controls switching on and switching off between the converter 3 and the power consumption device 5, and controls the load level of the power consumption device 5. The output end of the distribution board 4 is connected with the power consumption device 5 through a power cable.
The power consumption device 5 is a water resistive load.
The rotating speed control module 7 mainly comprises a PLC and an I/O module, and the rotating speed control module 7 is connected with a speed regulator of the diesel engine 1 and the centralized control console 6 through control cables.
The rotating speed control module 7 receives the given rotating speed of the diesel engine 1 and the actual rotating speed of the diesel engine 1 from the centralized control console 6 through the I/O input module, the PLC module calculates the difference value between the actual rotating speed and the given rotating speed, and sends an acceleration or deceleration instruction to the speed regulator of the diesel engine 1 through the I/O output module, so that the rotating speed regulation of the diesel engine 1 is realized.
The centralized control console 6 carries out remote control and running parameter monitoring on the equipment of the test verification platform, and the centralized control console 6 is connected with the rotating speed control module 7 and the distribution board 4 through control cables.
The centralized control console 6 can control the diesel engine 1 to start, stop, accelerate and decelerate, control the switch of the distribution board 4 to switch on and off, and control the load of the power consumption device 5 to increase and decrease.
The centralized control console 6 can monitor the operating parameters of the diesel engine 1 and the distribution board 4.
A verification method of a ship power system test verification platform comprises the following steps:
1) according to the given rotating speed of the diesel engine 1 and the actual rotating speed of the diesel engine 1, an acceleration or deceleration instruction is sent to a speed regulator of the diesel engine 1, so that the rotating speed of the diesel engine 1 is adjusted;
2) the variable-speed generator 2 is electrically connected with the converter 3, and generates constant-frequency and constant-voltage electric energy under the condition of variable speed and variable load, and the electric energy is consumed by the power consumption device 5, so that the rotating speed and the load of the diesel engine 1 can be synchronously adjusted, a propulsion characteristic simulation test and a power generation characteristic simulation test of the diesel engine 1 are performed, and test verification is performed.
As shown in fig. 3, when the power generation characteristic simulation test is performed, the rotation speed of the diesel engine 1 is adjusted by the centralized control console 6 and stabilized at 1500r/min, and the power consumption device 5 is controlled and adjusted to adjust the load power, so that the diesel engine 1 operates on the power generation characteristic curve, and the operation parameters of the diesel engine 1 are monitored.
When a propulsion characteristic simulation test is carried out, according to the rotating speed and the load condition corresponding to the propulsion characteristic curve of the diesel engine 1, the rotating speed of the diesel engine 1 is adjusted by the centralized control console 6, and the power consumption device 5 is controlled and adjusted to adjust the load power, so that the diesel engine 1 runs on the propulsion characteristic curve, and the running parameters of the diesel engine 1 are monitored.
As shown in fig. 4, the device of the test verification platform is remotely controlled and the operation parameters are monitored through the centralized control console 6. The centralized control console 6 comprises a UPS (uninterrupted power supply), a switching power supply, an industrial personal computer, a display, a mouse, a keyboard, a data acquisition module, a button and a relay; the distribution board 4 comprises a circuit breaker, an electric energy meter, a button and a relay; the rotating speed control module 7 comprises a PLC and an I/O module. The data acquisition module is connected with the diesel engine 1 and the distribution board 4 through signal lines respectively, the start, stop, acceleration and deceleration of the diesel engine 1 are controlled through the central console 6, the distribution board 4 is controlled to be switched on and off and switched off through the central console 6, and the load of the power consumption device 5 is controlled to be increased and reduced through the central console 6. The operation parameters of the diesel engine 1 and the distribution board 4 are monitored through the centralized control console 6. The power consumption device 5 comprises a load resistor and an adjusting motor, and the centralized control console 6 controls the adjusting motor through a button and a relay to realize the adjustment of the load resistor.
The following table 1 shows the equipment composition and model. The brands or models of the parts described below may be replaced with other models while still performing the functions of the present invention.
TABLE 1 Equipment composition and model
Examples
As shown in table 2, the simulation of the diesel propulsion characteristic curve was completed by simulating a plurality of operating points. Propulsion characteristic test:
and adjusting the rotating speed of the diesel engine to 1100r/min, and adjusting a power consumption device according to the power value corresponding to the rotating speed of the propulsion characteristic curve, so that the load of the diesel engine is controlled at 74kW, and the diesel engine runs on the propulsion characteristic curve.
And adjusting the rotating speed of the diesel engine to 1200r/min, and adjusting the power consumption device according to the power value corresponding to the rotating speed of the propulsion characteristic curve, so that the load of the diesel engine is controlled at 96kW, and the diesel engine runs on the propulsion characteristic curve.
And adjusting the rotating speed of the diesel engine to 1300r/min, and adjusting the power consumption device according to the power value corresponding to the rotating speed of the propulsion characteristic curve, so that the load of the diesel engine is controlled at 122kW, and the diesel engine runs on the propulsion characteristic curve.
And adjusting the rotating speed of the diesel engine to 1400r/min, and adjusting the power consumption device according to the power value corresponding to the rotating speed of the propulsion characteristic curve, so that the load of the diesel engine is controlled to be 151kW, and the diesel engine runs on the propulsion characteristic curve.
And adjusting the rotating speed of the diesel engine to 1500r/min, and adjusting the power consumption device according to the power value corresponding to the rotating speed of the propulsion characteristic curve, so that the load of the diesel engine is controlled at 184kW, and the diesel engine runs on the propulsion characteristic curve.
As shown in table 3, the power generation characteristic test:
adjusting and keeping the rotating speed of the diesel engine at 1500r/min, adjusting the power consumption device to enable the load rate of the diesel engine to be 0%, 25%, 50%, 75% and 100%, and correspondingly enabling the load of the diesel engine to be 0kW, 46kW, 92kW, 138kW and 184 kW. The simulation of the power generation characteristic curve of the diesel engine is completed by simulating a plurality of working condition points.
TABLE 2 Propulsion characteristic test operating points
| Diesel engine speed (r/min) | Load power (kW) |
| 1100 | 74 |
| 1200 | 96 |
| 1300 | 122 |
| 1400 | 151 |
| 1500 | 184 |
TABLE 3 operating points for power generation characteristic test
| Load factor (%) | Diesel engine speed (r/min) | Load power (kW) |
| 0 | 1500 | 0 |
| 25 | 1500 | 46 |
| 50 | 1500 | 92 |
| 75 | 1500 | 138 |
| 100 | 1500 | 184 |
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The ship power system test verification platform and the verification method provided by the embodiment of the utility model are described in detail, a specific example is applied in the description to explain the principle and the implementation mode of the utility model, and the description of the embodiment is only used for helping to understand the technical scheme and the core idea of the utility model; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A test verification platform for a ship power system is characterized by comprising a diesel engine (1), a variable speed generator (2) and a converter (3), wherein the diesel engine (1) is mechanically connected with the variable speed generator (2), and the variable speed generator (2) is electrically connected with the converter (3); the converter (3) is electrically connected with the power consumption device (5) through the distribution board (4); the diesel engine (1) and the distribution board (4) are respectively electrically connected with the centralized control console (6).
2. The test and verification platform for the marine power system is characterized in that the output end of the diesel engine (1) is connected with the input end of the variable-speed generator (2) through a coupler to drive the variable-speed generator (2) to rotate and generate electricity; the variable speed generator (2) converts mechanical energy of the diesel engine (1) into electric energy.
3. The test verification platform for the marine power system according to claim 1, wherein the output end of the converter (3) is connected to the input end of the distribution board (4) through a power cable, the output end of the distribution board (4) is connected to the power consumption device (5) through a power cable, and the electric energy with constant frequency and constant voltage output by the converter (3) is transmitted to the power consumption device (5) through the distribution board (4).
4. The test and verification platform for the marine power system is characterized in that the input end of the converter (3) is connected with the output end of the variable speed generator (2) through a power cable.
5. The test and verification platform for the marine power system according to claim 1, wherein the centralized control console (6) is connected with the rotation speed control module (7) and the distribution board (4) through control cables respectively.
6. The test verification platform for the ship power system as claimed in claim 5, wherein the rotation speed control module (7) comprises a PLC and an I/O module.
7. The test verification platform for the ship power system is characterized in that the rotating speed control module (7) is connected with a speed regulator of the diesel engine (1) through a control cable.
8. The marine power system test verification platform according to claim 1, wherein the central console (6) comprises a data acquisition module, the data acquisition module is connected with the diesel engine (1) and the distribution board (4) through signal lines respectively, and the central console (6) monitors the operating parameters of the diesel engine (1) and the distribution board (4).
9. The test and verification platform for the marine power system as claimed in claim 1, wherein the power consumption device (5) comprises a load resistor and a regulating motor, and the centralized control console (6) controls the regulating motor through a button and a relay to realize the regulation of the load resistor.
10. The test verification platform for the marine power system according to claim 1, wherein the power consumption device (5) is a water resistance load.
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| CN202123439018.6U CN216791649U (en) | 2021-12-31 | 2021-12-31 | Ship power system test verification platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295385A (en) * | 2021-12-31 | 2022-04-08 | 中国船舶重工集团公司第七一一研究所 | Ship power system test verification platform and verification method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295385A (en) * | 2021-12-31 | 2022-04-08 | 中国船舶重工集团公司第七一一研究所 | Ship power system test verification platform and verification method |
| CN114295385B (en) * | 2021-12-31 | 2024-05-17 | 中国船舶集团有限公司第七一一研究所 | Ship power system test verification platform and method |
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Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee after: The 711 Research Institute of China Shipbuilding Corp. Address before: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee before: Shanghai Marine Diesel Engine Research Institute |
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