CN112910082A - Power supply system for ship electric propulsion system - Google Patents
Power supply system for ship electric propulsion system Download PDFInfo
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- CN112910082A CN112910082A CN202110312639.3A CN202110312639A CN112910082A CN 112910082 A CN112910082 A CN 112910082A CN 202110312639 A CN202110312639 A CN 202110312639A CN 112910082 A CN112910082 A CN 112910082A
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Classifications
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B45/00—Arrangements or adaptations of signalling or lighting devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
- B63B79/10—Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/143—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple generators
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a power supply system for a ship electric propulsion system, which comprises a main power generation module and an emergency power generation module, wherein the main power generation module is electrically connected with the emergency power generation module through a communication switch; the power generation is carried out through the main power generation module, power is provided for the operation of the ship, the safety detection module can carry out safety detection on the main power generation module, an alarm is given when abnormality occurs, and the fault detection module can detect the fault of the main power generation module, so that the normal operation of the ship is ensured.
Description
Technical Field
The invention relates to the technical field of ship power supply, in particular to a power supply system for a ship electric propulsion system.
Background
Ships (boats and ships), a general term for various ships. A ship is a vehicle which can be sailed or moored in a water area for transportation or operation, and has different technical performances, equipment and structural types according to different use requirements. A ship is a man-made vehicle that operates primarily in geographic water. In addition, a civil ship is generally called a ship, a military ship is called a ship, and a small-sized ship is called a boat or a boat, which is collectively called a ship or a boat. The interior mainly comprises a containment space, a support structure and a drainage structure, with a propulsion system using an external or self-contained energy source. The appearance is generally favorable for overcoming the streamline envelope of the fluid resistance, the materials are continuously updated along with the technological progress, the early materials are natural materials such as wood, bamboo, hemp and the like, and the modern materials are mostly steel, aluminum, glass fiber, acrylic and various composite materials.
The marine power plant includes: propulsion unit-the main machine drives the propeller (the propeller is the main type) through the speed reducer and the transmission shaft system; auxiliary machinery and systems that service the operation of the propulsion device, such as fuel pumps, lube pumps, cooling water pumps, heaters, filters, coolers, etc.; the ship power station provides power for deck machinery of a ship, auxiliary machinery in a cabin, illumination on the ship and the like; other auxiliary machines and equipment, such as boilers, gas compressors, pumps for various systems of ships, hoisting machinery, maintenance machine tools, etc. Machines other than the main machine (and the boiler) are generally collectively referred to as a slave machine.
Among the prior art, the power of boats and ships generally all carries out the energy supply through power supply system, and current boats and ships power supply system's safety protection effect is relatively poor, when boats and ships power supply system breaks down, is difficult to in time report to the police, generally all is through artifical investigation to boats and ships power supply system's trouble, need consume more time, causes the influence to the normal operating of boats and ships easily.
Based on this, the present invention has devised a power supply system for a marine electric propulsion system to solve the above-mentioned problems.
Disclosure of Invention
The present invention aims to provide a power supply system for a marine electric propulsion system to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a power supply system for boats and ships electric propulsion system, includes main power generation module and emergency power generation module, through interconnection switch electric connection between main power generation module and the emergency power generation module, equal electric connection has the fault detection module on main power generation module and the emergency power generation module, equal electric connection has the safety detection module on main power generation module and the emergency power generation module, main power generation module electric connection has rectifier module, rectifier module electric connection has energy storage module, energy storage module electric connection has the contravariant module, contravariant module electric connection has power load module, electric connection between emergency power generation module and the power load module.
Preferably, the main power generation module is a main power generation unit, the rectification module is an AC/DC module, the energy storage module is a storage battery pack, and the inversion module is a DC/AC module.
Preferably, the main generator set comprises n sets of generators.
Preferably, the safety detection module comprises a current detection module, a voltage detection module, a temperature detection module, a humidity detection module and an abnormal alarm module.
Preferably, the current detection module detects currents of the main power generation module and the emergency power generation module, the voltage detection module detects voltages of the main power generation module and the emergency power generation module, the temperature detection module detects temperatures of the main power generation module and the emergency power generation module, the humidity detection module detects ambient humidity of the main power generation module and the emergency power generation module, and the abnormality alarm module alarms when a detection result is abnormal.
Preferably, the abnormality warning module is internally provided with a sound warning generator, a light warning generator and an information transmitter.
Preferably, the work flow of the power supply system includes the following steps:
s1, when the ship is in normal use, the main power generation module generates power through n groups of generators, the rectification module rectifies electric energy generated by the main power generation module and then transmits the electric energy to the energy storage module, the storage battery unit stores the electric energy, and the inversion module transmits the electric energy in the energy storage module to the power load module to provide power for the operation of the ship;
s2, a current detection module and a voltage detection module of the safety detection module respectively detect the current and the voltage of the main power generation module, a temperature detection module detects the temperature of the main power generation unit, a humidity detection module detects the humidity around the main power generation unit, an abnormality alarm module alarms when the voltage or the current of the main power generation unit is abnormal, and an abnormality alarm module alarms when the temperature of the main power generation unit or the humidity around the main power generation unit is abnormal;
and S3, when the main power generation module breaks down, the fault detection module carries out fault detection on the main power generation module, the contact switch controls the emergency power generation module to start, the emergency power generation module supplies power to the power load module, and the safety detection module carries out safety detection on the emergency power generation module.
Preferably, the method of the fault detection module comprises the following steps:
s1, inputting historical fault information of the ship main power generation module, and establishing an original decision table according to the historical fault information;
s2, selecting the association frequent item according to the fault type, performing association standard acquisition, judging whether the specification is reasonable, verifying when the specification is unreasonable, changing the association standard parameters when the specification is reasonable, repeating the association standard acquisition, and then judging whether the specification is reasonable.
Compared with the prior art, the invention has the beneficial effects that:
1. the power generation device generates power through the main power generation module, the rectification module rectifies electric energy generated by the main power generation module and then transmits the electric energy to the energy storage module, the storage battery unit stores the electric energy, the inversion module transmits the electric energy in the energy storage module to the power load module to provide power for the operation of a ship, the safety detection module can perform safety detection on the main power generation module, an alarm is given when abnormality occurs, and the fault detection module can detect faults of the main power generation module to ensure the normal operation of the ship.
2. In the invention, a current detection module and a voltage detection module of a safety detection module respectively detect the current and the voltage of a main power generation module, a temperature detection module detects the temperature of a main power generation unit, a humidity detection module detects the humidity around the main power generation unit, an abnormality alarm module alarms when the voltage or the current of the main power generation unit is abnormal, and an abnormality alarm module alarms when the temperature of the main power generation unit or the humidity around the main power generation unit is abnormal.
3. According to the invention, when the main power generation module has a fault, the fault detection module carries out fault detection on the main power generation module, the contact switch controls the emergency power generation module to start, the emergency power generation module supplies power to the power load module, and the safety detection module carries out safety detection on the emergency power generation module; the fault detection module detects faults of the main power generation module, an original decision table is established according to historical fault information input into the ship main power generation module, association frequent items are selected according to fault types, association standard collection is carried out, whether the specification is reasonable or not is judged, verification is carried out when the specification is unreasonable, association standard parameters are changed when the specification is reasonable, association standard collection is carried out repeatedly, whether the specification is reasonable or not is judged, the fault detection effect is good, and the fault detection speed is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic block diagram of a system according to the present invention;
FIG. 2 is a schematic view of a main power generation module of the present invention;
FIG. 3 is a schematic diagram of a power supply flow for normal operation of a ship according to the present invention;
FIG. 4 is a schematic diagram of a security detection module according to the present invention;
fig. 5 is a schematic diagram of the fault detection process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-5, the present invention provides a technical solution of a power supply system for a ship electric propulsion system: including main power generation module and emergency power generation module, through interconnection switch electric connection between main power generation module and the emergency power generation module, equal electric connection has the fault detection module on main power generation module and the emergency power generation module, equal electric connection has the safety detection module on main power generation module and the emergency power generation module, main power generation module electric connection has rectifier module, rectifier module electric connection has energy storage module, and rectifier module rectifies the electric energy of main power generation module production and then carries energy storage module department, energy storage module electric connection has the contravariant module, contravariant module electric connection has power load module, electric connection between emergency power generation module and the power load module.
The main power generation module is a main power generation unit, the rectification module is an AC/DC module, the energy storage module is a storage battery pack, electric energy is stored by the storage battery unit, and the storage battery pack can be a lithium battery or a zinc bromine flow battery. The lithium battery and the zinc-bromine flow battery have higher power density and energy density and good steady-state performance. The capacity of the lithium battery can be selected. The lithium battery refers to a chargeable and dischargeable high-energy battery embedded with compound positive and negative electrode materials, the positive electrode material generally uses lithium intercalation compounds, such as LiMn2O4, LiNiO2, LiCoO2 and the like, and the negative electrode material generally uses artificial graphite, natural graphite and coke series materials. The lithium battery with proper capacity can be selected according to the actual working amount, and the method is the simplest, most direct and most convenient energy storage and power supply driving scheme. For a zinc-bromine flow battery, the zinc-bromine flow battery is a high-efficiency electrochemical energy storage device and is also called as a redox flow energy storage battery, the theoretical open-circuit voltage of the zinc-bromine flow battery is 1.82V, the total efficiency is 75%, the theoretical energy density is 430Wh/kg, the battery can deeply discharge for thousands of times at 100%, and compared with a lithium battery, the zinc-bromine flow battery has higher energy density and power density, excellent cyclic charge and discharge performance and excellent performance, so the zinc-bromine flow battery can be used as an alternative scheme of the lithium battery, the inverter module is a DC/AC module, the main generator set comprises n groups of generators, and the main generator set generates electricity through the n groups of generators.
The safety detection module comprises a current detection module, a voltage detection module, a temperature detection module, a humidity detection module and an abnormal alarm module.
The current detection module detects currents of the main power generation module and the emergency power generation module, the voltage detection module detects voltages of the main power generation module and the emergency power generation module, the temperature detection module detects temperatures of the main power generation module and the emergency power generation module, the humidity detection module detects ambient humidity of the main power generation module and the emergency power generation module, and the abnormity alarm module alarms when a detection result is abnormal; and a sound alarm generator, an optical alarm generator and an information transmitter are arranged in the abnormity alarm module.
The work flow of the power supply system comprises the following steps:
s1, when the ship is in normal use, the main power generation module generates power through n groups of generators, the rectification module rectifies electric energy generated by the main power generation module and then transmits the electric energy to the energy storage module, the storage battery unit stores the electric energy, and the inversion module transmits the electric energy in the energy storage module to the power load module to provide power for the operation of the ship;
s2, a current detection module and a voltage detection module of the safety detection module respectively detect the current and the voltage of the main power generation module, a temperature detection module detects the temperature of the main power generation unit, a humidity detection module detects the humidity around the main power generation unit, an abnormality alarm module alarms when the voltage or the current of the main power generation unit is abnormal, and an abnormality alarm module alarms when the temperature of the main power generation unit or the humidity around the main power generation unit is abnormal;
and S3, when the main power generation module breaks down, the fault detection module carries out fault detection on the main power generation module, the contact switch controls the emergency power generation module to start, the emergency power generation module supplies power to the power load module, and the safety detection module carries out safety detection on the emergency power generation module.
In the ship fault acquisition process, massive data may exist, and in order to reduce the time consumption of searching faults, the whole object data set is divided into different slopes, and the specific process is as follows:
dividing the total fault data set into different local data sets, dividing a maintenance fault database of the whole year into different local quarter fault databases depending on the maintenance time of a ship power supply system, collecting a frequent item set in the local quarter fault databases, and searching only once;
finally obtaining an integral fault data frequent item preparation set by fusing and collecting all local fault data frequent item sets, and searching fault data to analyze whether the corresponding preparation set is an effective frequent item set;
through the analysis, the association rule detection of the fault data only searches the data set twice, so that the time consumption of data search is greatly reduced, the efficiency of controlling the base station operation data is improved, and a flow is established for the fault association rule of the fault data.
The method of the fault detection module comprises the following steps:
s1, inputting historical fault information of the ship main power generation module, and establishing an original decision table according to the historical fault information;
s2, selecting the association frequent item according to the fault type, performing association standard acquisition, judging whether the specification is reasonable, verifying when the specification is unreasonable, changing the association standard parameters when the specification is reasonable, repeating the association standard acquisition, and then judging whether the specification is reasonable.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A power supply system for a marine electric propulsion system, characterized by: including main power generation module and emergency power generation module, through interconnection switch electric connection between main power generation module and the emergency power generation module, equal electric connection has the fault detection module on main power generation module and the emergency power generation module, equal electric connection has the safety detection module on main power generation module and the emergency power generation module, main power generation module electric connection has rectifier module, rectifier module electric connection has energy storage module, energy storage module electric connection has the contravariant module, contravariant module electric connection has the power load module, electric connection between emergency power generation module and the power load module.
2. A power supply system for a marine vessel electric propulsion system according to claim 1, characterized in that: the main power generation module is a main power generation unit, the rectification module is an AC/DC module, the energy storage module is a storage battery pack, and the inversion module is a DC/AC module.
3. A power supply system for a marine vessel electric propulsion system according to claim 2, characterized in that: the main generator set comprises n groups of generators.
4. A power supply system for a marine vessel electric propulsion system according to claim 1, characterized in that: the safety detection module comprises a current detection module, a voltage detection module, a temperature detection module, a humidity detection module and an abnormal alarm module.
5. A power supply system for a marine vessel electric propulsion system according to claim 4, characterized in that: the current detection module detects currents of the main power generation module and the emergency power generation module, the voltage detection module detects voltages of the main power generation module and the emergency power generation module, the temperature detection module detects temperatures of the main power generation module and the emergency power generation module, the humidity detection module detects ambient humidity of the main power generation module and the emergency power generation module, and the abnormity alarm module alarms when detection results are abnormal.
6. A power supply system for a marine vessel electric propulsion system according to claim 5, characterized in that: and a sound alarm generator, an optical alarm generator and an information transmitter are arranged in the abnormity alarm module.
7. A power supply system for a marine vessel electric propulsion system according to any one of claims 1 to 6, characterised in that: the work flow of the power supply system comprises the following steps:
s1, when the ship is in normal use, the main power generation module generates power through n groups of generators, the rectification module rectifies electric energy generated by the main power generation module and then transmits the electric energy to the energy storage module, the storage battery unit stores the electric energy, and the inversion module transmits the electric energy in the energy storage module to the power load module to provide power for the operation of the ship;
s2, a current detection module and a voltage detection module of the safety detection module respectively detect the current and the voltage of the main power generation module, a temperature detection module detects the temperature of the main power generation unit, a humidity detection module detects the humidity around the main power generation unit, an abnormality alarm module alarms when the voltage or the current of the main power generation unit is abnormal, and an abnormality alarm module alarms when the temperature of the main power generation unit or the humidity around the main power generation unit is abnormal;
and S3, when the main power generation module breaks down, the fault detection module carries out fault detection on the main power generation module, the contact switch controls the emergency power generation module to start, the emergency power generation module supplies power to the power load module, and the safety detection module carries out safety detection on the emergency power generation module.
8. A power supply system for a marine vessel electric propulsion system according to claim 7, characterized in that: the method of the fault detection module comprises the following steps:
s1, inputting historical fault information of the ship main power generation module, and establishing an original decision table according to the historical fault information;
s2, selecting the association frequent item according to the fault type, performing association standard acquisition, judging whether the specification is reasonable, verifying when the specification is unreasonable, changing the association standard parameters when the specification is reasonable, repeating the association standard acquisition, and then judging whether the specification is reasonable.
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