CN114489016A - Multi-mode switching control and fault processing device and method for ship power system - Google Patents

Multi-mode switching control and fault processing device and method for ship power system Download PDF

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Publication number
CN114489016A
CN114489016A CN202210104544.7A CN202210104544A CN114489016A CN 114489016 A CN114489016 A CN 114489016A CN 202210104544 A CN202210104544 A CN 202210104544A CN 114489016 A CN114489016 A CN 114489016A
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China
Prior art keywords
mode
host
switching
port
fault
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CN202210104544.7A
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Chinese (zh)
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CN114489016B (en
Inventor
陈德富
刘张超
刘佳彬
蔡建东
周晓洁
孟嗣斐
李骁
朱洪宇
李威
杨峰
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Shanghai Marine Diesel Engine Research Institute
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Shanghai Marine Diesel Engine Research Institute
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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
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
    • G05B23/0262—Confirmation of fault detection, e.g. extra checks to confirm that a failure has indeed occurred
    • 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
    • B63H21/21—Control means for engine or transmission, specially adapted for use on marine vessels
    • 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
    • B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
    • B63H21/386—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like for handling lubrication liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/02—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring
    • 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
    • B63H21/21—Control means for engine or transmission, specially adapted for use on marine vessels
    • B63H2021/216—Control means for engine or transmission, specially adapted for use on marine vessels using electric control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/02—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring
    • B63H2025/028—Initiating means for steering, for slowing down, otherwise than by use of propulsive elements, or for dynamic anchoring using remote control means, e.g. wireless control; Equipment or accessories therefor
    • 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
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24065—Real time diagnostics

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses a multi-mode switching control and fault processing device and method for a ship power system, belonging to the field of application of automatic control technology of the ship power system, wherein the ship power system comprises a port device, a starboard device, a host remote control device, a motor remote control device and a PMS; and control signal interaction is carried out through host machine remote control, motor remote control and PMS, so that multi-mode switching control and fault processing are realized. According to the invention, the port equipment and the starboard equipment are switched separately, even if one board fails, the other board can still work normally only by automatically processing according to a failure processing method, and power is provided for ship navigation; the multi-mode switching control and fault processing method of the ship power system realizes multi-mode switching control and fault processing, and provides different solutions according to the type and the time of faults in different mode switching processes.

Description

Multi-mode switching control and fault processing device and method for ship power system
Technical Field
The invention belongs to the field of application of an automatic control technology of a ship power system, and particularly relates to a multi-mode switching control and fault processing device and method of the ship power system.
Background
The operation modes of the conventional hybrid system are classified into a main engine Mode, a PTO Mode (Power Take Out Mode, axle Power generation Mode), a PTI Mode (Power Take In Mode, parallel propulsion Mode), and a PTH Mode (Power Take Home Mode, motor propulsion Mode); different working modes are required to be adopted for the ship sailing in different sailing sections, and the switching among the working modes can be completed only by the mutual matching of equipment such as a host, a gear box, a frequency converter, a shaft motor, a distribution board, a generator set and the like.
The operation steps are different when the modes are switched among different working modes; in the prior art, when a mode switching process has a fault, the mode switching process is almost directly quitted and switched, and a manual operation method of a crew is adopted to carry out fault processing, so that the requirement on the literacy of the crew is extremely high, and the power of a ship can be lost; it is very dangerous for inland vessels to lose power.
In CN102411332A, a PTI/PTO mode switching control device based on PLC control is disclosed, which comprises a control signal input circuit, a PLC main controller, a PTI/PTO switching execution element, and a communication circuit, wherein an output end of the control signal input circuit is electrically connected with a signal input end of the PLC main controller; the output end of the PLC main controller is electrically connected with the input end of the PTI/PTO switching execution element; the PLC main controller is electrically connected with the frequency converter in a bidirectional way; the input end of the PTI/PTO switching execution element is electrically connected with the output end of the frequency converter, and the output end of the PTI/PTO switching execution element is electrically connected with the shaft motor and the small starting motor respectively to control the shaft motor or the small starting motor to switch mutually; the input end of the communication circuit is electrically connected with the communication end of the PLC main controller, and the output end of the communication circuit is electrically connected with the external monitoring equipment in a two-way mode. The PTI/PTO mode switching control device and the control method thereof are applied to ships equipped with the shaft-driven motor, the shaft-driven motor is controlled to operate in a power generation mode when the power of a main machine is rich, and the shaft-driven motor is controlled to operate in an electric mode when the main machine is damaged or the propelling power is insufficient. However, only the PTI/PTO mode switching by the PLC control is disclosed in this control device; in the embodiment, two embodiments are given as follows: PTI and PTO are mutually switched in a controllable pitch propeller mode, and PTH control is performed in a fixed pitch propeller mode; the PTI/PTO mode switching control device based on PLC control realizes the switching control among PTO, PTI and neutral gear and PTI combined propulsion control in a controllable pitch propeller mode, or realizes the PTI combined propulsion control in a fixed pitch propeller mode through a frequency converter, or realizes the PTH single propulsion control when a host stops running in any mode; in summary, the technical solution disclosed in the patent application is realized based on PLC control, and multi-mode switching control and fault handling cannot be realized, especially switching control between a PTH and other modes.
CN111907679A discloses a control method of a dc networked ship hybrid propulsion system, which can automatically switch modes according to the environment, wherein a main controller generates a propulsion mode switching process of the whole route according to the driving requirements of different segments: switching the host mode to a PTH mode in which the host stops working and the propulsion power of the ship is completely provided by a shaft-driven motor, wherein the code is OH; the PTH mode is switched to a PTI mode in which the host and the shaft motor work simultaneously, and the code is marked as HI; PTI mode is switched to PTH mode, and the mark is IH; … …, respectively; the PTI mode is switched to the host mode, and the code number is marked as IO; the host mode stops independently, and the code is marked as OS; and generates a mode switching code matrix o. In the invention, mode switching depends on the distance w from a ship propulsion mode junction point (the junction point of a current propulsion mode and a next propulsion mode) to a departure place A, the distance L from a hybrid power ship to the departure place A and the required distance h in the mode switching process, and a main controller obtains a mode switching code p-o-I; then, the main controller controls the relevant equipment to complete the corresponding mode switching process according to the mode switching code; in the patent application, the inventive principle and technical scheme of mode switching depend on measurement and calculation of a large amount of data, and multi-mode switching control and fault processing cannot be realized.
CN111942558A discloses a method for operating and switching different propulsion modes of a dc networking hybrid propulsion system, wherein the operation and switching operation comprises: switching a host mode to a PTH mode, switching the PTH mode to a PTI mode and switching the host mode to the PTI mode; the operation and the switching of the three modes are realized by the main controller sending an operation mode switching instruction to the shaft motor. The frequency converter disclosed in this patent application divides the core control mode of the shaft motor into two parts: the device comprises a rotating speed control mode and a torque control mode, wherein different control modes are used in different modes to realize instant seamless switching according to working condition requirements. In the technical scheme disclosed by the patent application, the switching of three modes under a normal working condition environment is only involved, and meanwhile, in different modes, different control modes are adopted and a fault processing device is not involved; once the direct-current networking hybrid power propulsion system fails, the whole mode switching cannot be realized.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a multi-mode switching control and fault processing device of a ship power system, wherein a port device and a starboard device are switched separately, even if one board fails, the other board can still work normally only by automatically processing according to a fault processing method, and power is provided for ship navigation; the invention also discloses a multi-mode switching control and fault processing method of the ship power system, which realizes the multi-mode switching control and fault processing and provides different solutions according to the types and the time of faults in different mode switching processes.
The technical scheme is as follows: in order to achieve the above object, the present invention provides a multi-mode switching control and fault handling device for a ship power system, comprising: port equipment, starboard equipment, host remote control, motor remote control and PMS; the port equipment and the starboard equipment respectively comprise PTI electric pumps; the PTI electric pump provides power for the circulation of gear box lubricating oil of port equipment and starboard equipment, and the PTI electric pump and the remote control of the host are in an electric signal connection relationship; the host remote control, the motor remote control and the PMS respectively control the port equipment and the starboard equipment, so that the port equipment and the starboard equipment can operate independently or jointly.
In some embodiments, the system further comprises a mode switching device, the mode switching device establishes control signal connections with the host remote control, the motor remote control and the PMS respectively through handshake signals, and control signal interaction is performed through the host remote control, the motor remote control and the PMS to realize control signal transmission.
In some embodiments, the mode switching device comprises a signal sending module, a signal receiving module, a man-machine interaction module and a CPU control module; the signal sending module establishes control signal connection with the host remote control, the motor remote control and the PMS respectively through handshake signals; the signal receiving module receives equipment state signals fed back by the host machine remote control, the motor remote control and the PMS; the man-machine interaction module is connected with the CPU control module, displays contents such as mode switching progress and alarm and sets parameters at the same time; the CPU control module carries out mode switching logic control according to the feedback signal of the signal receiving module and a control instruction of the human-computer interaction interface, and simultaneously sends the control instruction out through the signal sending module to display the relevant state on the human-computer interaction interface.
In some embodiments, the port equipment comprises a port host, a port gearbox, a port axle belt motor, and a port frequency converter, and the starboard equipment comprises a starboard host, a starboard gearbox, a starboard axle belt motor, and a starboard frequency converter; the port shaft motor is electrically connected with the direct current distribution board through a port frequency converter, the starboard shaft motor is electrically connected with the direct current distribution board through a starboard frequency converter, the direct current distribution board is electrically connected with the alternating current distribution board, and the alternating current distribution board is electrically connected with an alternating current load.
In some embodiments, the port gearbox further comprises a forward clutch, a reverse clutch and a transmission gear, wherein the transmission gear of the port gearbox is mechanically connected with the port shaft motor; the starboard gear box also comprises a forward clutch, a reverse clutch and a transmission gear; a transmission gear of the starboard gear box is mechanically connected with a starboard shaft motor; the PTI electric pump provides circulating power for lubricating oil inside the port gearbox and the starboard gearbox, and is mechanically connected with the port gearbox and the starboard gearbox.
In some embodiments, the host remotely controls a port host, a port gearbox, and a starboard host, a starboard gearbox; the motor remotely controls the port frequency converter and the starboard frequency converter; the PMS controls the motor to be remotely controlled; the port frequency converter controls a port shaft motor; and the starboard frequency converter controls the starboard shaft motor.
In some embodiments, the dc power board is electrically connected to the generator set and the energy storage system, respectively, and the PMS controls the dc power board, the ac power board, the generator set, and the energy storage system.
In some embodiments, the port main engine, port gear box, port axle motor and port propeller are mechanically connected; the starboard main engine, the starboard gear box, the starboard shaft motor and the starboard propeller are mechanically connected.
Preferably, the multimode switching control and fault handling method of the ship power system comprises the following steps:
a power system working mode identification step, wherein the working modes are divided into a host mode, a PTO mode, a PTI mode, a PTH mode and an unidentified mode; the unrecognized mode is a general term for other states different from the host mode, PTO mode, PTI mode, PTH mode;
a multi-mode switching control process and a fault processing step, wherein the multi-mode switching control process comprises a host mode switching to a PTO mode, a PTO mode switching to the host mode, a host mode switching to a PTI mode, a PTI mode switching to the host mode, a host mode switching to a PTH mode, a PTH mode switching to the host mode, a PTI mode switching to the PTH mode and a PTH mode switching to the PTI mode; the fault processing step comprises the process of switching the working modes when a fault occurs in the multi-mode switching control process.
In some embodiments, for the port main engine, when the working mode is the main engine mode, the port main engine drives the port propeller to propel alone, the main engine mode-main engine is called when the forward clutch of the port gearbox is arranged, the main engine mode-reverse engine is called when the reverse clutch of the port gearbox is arranged, and the main engine mode-neutral engine mode is called when the forward clutch and the reverse clutch of the port gearbox are both arranged; and for the starboard host, when the working mode is the host mode, the steps are the same as the host mode of the port host.
In some embodiments, for a port-side host, when the operating mode is a PTO mode, the port-side host drives a port propeller to propel, the port axle belt clutch is arranged to drive the port axle belt motor to generate power, a forward clutch of a port gear box is arranged to be called PTO mode-forward, a reverse clutch of the port gear box is arranged to be called PTO mode-reverse, and a forward clutch and a reverse clutch of the port gear box are both arranged to be disconnected to be called PTO mode-neutral; for a starboard host, when the working mode is the PTO mode, the steps are the same as the PTO mode of a port host.
In some embodiments, for a port side host, when the working mode is a PTI mode, the port side host and a port side shaft belt motor drive a port side propeller to propel in an electric mode, and a vehicle-driving clutch of a port side gear box is lined up and called as PTI mode-vehicle driving; when the reversing clutch of the port gearbox is lined up, the mode is called PTI mode-reversing; the PTI mode-neutral gear is called when the forward clutch and the reverse clutch of the port gear box are both disengaged; and when the working mode of the starboard host is the PTI mode, the steps are the same as the PTI mode of the port host.
In some embodiments, for the port side host, when the working mode is the PTH mode, the port side host is disconnected from the port side gear box, the forward clutch and the reverse clutch are both disconnected, the port side shaft motor drives the port side propeller to propel alone in the electric mode, when the rotating speed of the port side shaft motor is positive, the port side shaft motor is named PTH mode-forward, when the rotating speed of the port side shaft motor is negative, the PTH mode-reverse, and when the rotating speed of the port side shaft motor is 0, the PTH mode-neutral are obtained; and when the working mode of the starboard host is the PTH mode, the steps are the same as those of the PTH mode of the port host.
In some embodiments, the fault comprises fault a: taking over the remote control overtime and the fault B of the host: taking over motor remote control overtime and failure C: PMS entry/exit heavy load/PTO timeout, fault D: transducer entry/exit PTH/PTO/PTI timeout, fault E: host remote control allowed loss, failure F: remote control of the motor allows loss, failure G: motor shutdown failure, failure H: PMS fault, fault I: and (3) failure switching-on and switching-off of the positive clutch, failure J: and (4) failure combination and elimination of the reversing clutch and failure K: the host machine is down and fails.
In some embodiments, the process of switching the host mode to PTO mode is as follows:
(2) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the frequency converter enters a PTO mode;
the PMS enters a PTO mode;
entering PTO mode;
(2) the fault processing method comprises the following steps
The method for processing the switching fault of the host mode to the PTO mode comprises the following steps:
firstly, when any one of A/B/C/D/E/F/G/H/I/J faults occurs, stopping normal mode switching and automatically returning to a host mode;
stopping normal mode switching when a fault K occurs, and automatically entering an unidentified mode;
the process of switching the PTO mode to the host mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS exits the PTO mode;
fourthly, the frequency converter exits the PTO mode;
entering a host mode;
(2) fault processing method
The failure processing method for switching the PTO mode to the host mode comprises the following steps:
stopping normal mode switching when any one of A/B/C faults occurs, and automatically returning to a PTO mode;
stopping normal mode switching when any one of E/F/G/H/I/J faults occurs, and automatically entering a host mode;
when a fault D/K occurs, stopping normal mode switching and automatically entering an unidentified mode;
the process of the host mode switching to the PTI mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS enters a heavy-load mode;
fourthly, the frequency converter enters a PTI mode;
entering a PTI mode;
(2) fault processing method
The host mode switching to PTI mode switching fault processing method comprises the following steps:
firstly, when any one of A/B/C/D/E/F/G/H/I/J faults occurs, stopping normal mode switching and automatically returning to a host mode;
stopping normal mode switching when a fault K occurs, entering a PTH mode if the PTH mode is selected to enter at the moment, and automatically entering an unidentified mode if the PTH mode is not selected for a certain time;
the process of the PTI mode switching to the host mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the frequency converter exits the PTI mode;
the PMS exits the heavy-load mode;
entering a host mode;
(2) fault processing method
The host mode is switched to the PTI mode, and the fault processing method comprises the following steps:
stopping normal mode switching when any one of A/B/C faults occurs, and automatically returning to a PTI mode;
stopping normal mode switching when any one of E/F/G/H/I/J faults occurs, and automatically entering a host mode;
when a fault D/K occurs, stopping normal mode switching and automatically entering an unidentified mode;
the process of the host mode switching to the PTH mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS enters a heavy-load mode;
fourthly, the frequency converter enters a PTH mode;
entering into PTH mode;
(2) fault processing method
The host computer switches to the fault handling method of PTH mode:
when any fault of A/B/C/D/E/F/G/H/I/J occurs, stopping normal mode switching and automatically returning to a host mode;
when a fault K occurs, the normal mode is switched continuously;
the process of the PTH mode switching to the host mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the frequency converter exits the PTH mode;
the PMS exits the heavy load mode;
entering a host mode;
(2) fault processing method
The fault processing method for switching the PTH mode to the host mode comprises the following steps:
stopping switching of a normal mode and automatically returning to a PTH mode when any one of A/B/C faults occurs;
stopping normal mode switching when any fault of D/E/F/G/I/J occurs, and automatically entering a host mode;
when a fault H/K occurs, stopping normal mode switching and automatically entering an unidentified mode;
the process of switching the PTI mode to the PTH mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
PMS keeps a heavy load mode;
fourthly, the frequency converter enters a PTH mode from the PTI mode;
entering into PTH mode;
(2) fault processing method
The PTI mode is switched to a PTH mode, and the fault handling method comprises the following steps:
stopping normal mode switching when any one of A/B/C faults occurs, and automatically returning to a PTI mode;
stopping normal mode switching when any one of D/E/F/G/H/I/J faults occurs, and automatically entering a host mode;
when a fault K occurs, continuing normal mode switching;
the process of the PTH mode switching to the PTI mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS keeps a heavy-load mode;
fourthly, the frequency converter enters a PTI mode from the PTH mode;
entering a PTI mode;
(2) fault processing method
The fault handling method for switching the PTH mode to the PTI mode comprises the following steps:
stopping switching of a normal mode and automatically returning to a PTH mode when any one of A/B/D/K faults occurs;
and secondly, stopping normal mode switching when any one of C/E/F/G/H/I/J faults occurs, and automatically entering a host mode.
Has the advantages that: compared with the prior art, the multi-mode switching control and fault processing device of the ship power system comprises port equipment, starboard equipment, host remote control, motor remote control and a PMS (permanent magnet synchronous motor); the system comprises a port device, a starboard device, a main machine and a control system, wherein the port device and the starboard device respectively comprise PTI electric pumps which provide power for the lubricating oil circulation of gear boxes of the port device and the starboard device, and the PTI electric pumps are connected with the main machine through electric signals in a remote control mode; the port equipment and the starboard equipment are respectively controlled through host remote control, motor remote control and PMS, so that the port equipment and the starboard equipment can independently operate or operate together, even if one board has a fault, the other board can automatically operate according to a fault processing method, and the other board can normally operate to provide power for ship navigation. The invention relates to a multi-mode switching control and fault processing method of a ship power system, which comprises a power system working mode identification step, a multi-mode switching control flow and a fault processing step; different solutions are provided according to the types and the opportunity of faults in different mode switching processes, the mode switching device establishes control signal connection with the host machine remote control device, the motor remote control device and the PMS through handshaking signals respectively, control signal interaction is carried out through the host machine remote control device, the motor remote control device and the PMS, control signal transmission is achieved, the mode switching control device automatically processes the signals through different methods, and smooth operation of the working process is guaranteed.
Drawings
FIG. 1 is a schematic diagram of the power system of the multi-mode switching control and fault handling apparatus of the marine power system of the present invention;
fig. 2 is a rule diagram of the switching of the working modes of the multi-mode switching control and fault handling device of the marine power system 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.
It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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 invention. 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.
As shown in fig. 1, the multi-mode switching control and fault handling apparatus for a marine vessel power system includes:
port equipment, starboard equipment, mainframe remote control, motor remote control, and PMS (Power Management System); the port equipment and the starboard equipment respectively comprise PTI electric pumps;
the port equipment comprises a port host, a port gear box, a port shaft motor and a port frequency converter, and the starboard equipment comprises a starboard host, a starboard gear box, a starboard shaft motor and a starboard frequency converter; the PTI electric pump provides circulating power for lubricating oil in the port gear box and the starboard gear box, and is in mechanical connection with the port gear box and the starboard gear box and in electrical signal connection with the remote control of a host;
the port shaft motor is electrically connected with the direct current distribution board through a port frequency converter, the starboard shaft motor is electrically connected with the direct current distribution board through a starboard frequency converter, the direct current distribution board is electrically connected with the alternating current distribution board, and the alternating current distribution board is electrically connected with an alternating current load.
The main engine remotely controls the port main engine, the port gear box, the starboard main engine and the starboard gear box; the motor remotely controls the port frequency converter and the starboard frequency converter; the PMS controls a motor remote control, a direct current distribution board, an alternating current distribution board, a generator set and an energy storage system; the port frequency converter controls the port shaft motor, and the starboard frequency converter controls the starboard shaft motor. The transmission of control signals is realized through host machine remote control, motor remote control and PMS control.
The multi-mode switching control and fault processing device of the ship power system further comprises a mode switching device, the mode switching device is connected with the host machine remote control, the motor remote control and the PMS through control signals which are respectively established by handshake signals, and control signal interaction is carried out through the host machine remote control, the motor remote control and the PMS so as to realize control signal transmission.
The mode switching device comprises a signal sending module, a signal receiving module, a man-machine interaction module and a CPU control module; the signal sending module establishes control signal connection with the host remote control, the motor remote control and the PMS respectively through handshake signals; the signal receiving module receives equipment state signals fed back by the host machine remote control, the motor remote control and the PMS. The man-machine interaction module is connected with the CPU control module, can display contents such as mode switching progress, alarm and the like, and can set parameters. The CPU control module carries out mode switching logic control according to the feedback signal of the signal receiving module and a control instruction of the human-computer interaction interface, and simultaneously sends the control instruction out through the signal sending module to display the relevant state on the human-computer interaction interface.
When the mode switching is started, the mode switching device establishes control signal connection with the host machine through a handshake signal, after the connection is completed, the mode switching device respectively sends control instructions such as clutch on/off, host machine on/off, PTI electric pump on/off and the like according to the mode switching progress requirement, and the host machine remotely controls the clutch, the host machine and the PTI electric pump to execute related actions after receiving the control instructions; and after detecting that the related control action is finished, the host machine remotely feeds the equipment state back to the mode switching device. After the mode switching is completed, the mode switching device is disconnected from the handshake signal connection of the host remote control, the host remote control keeps the working mode unchanged after the mode switching is completed, works according to the body control instruction and shields the mode switching device control instruction.
When the mode switching is started, the mode switching device establishes control signal connection with the motor remote control through a handshake signal, after the connection is completed, the mode switching device sends a related control instruction of the working mode of the frequency converter according to the mode switching progress requirement, and the motor remote control receives the control instruction and then controls the frequency converter to execute related actions; and after the motor remotely detects that the related control action is finished, the state of the equipment is fed back to the mode switching device. After the mode switching is completed, the mode switching device is disconnected from the handshake signal connection of the motor remote control, the motor remote control keeps the working mode of the frequency converter unchanged, works according to the body control instruction and shields the mode switching device control instruction.
When the mode switching is started, the mode switching device establishes control signal connection with the PMS through a handshaking signal, after the connection is completed, the mode switching device sends a relevant control command of a PMS working mode according to the mode switching progress requirement, and the PMS controls each relevant circuit breaker, a generator set, an energy storage system and the like of a distribution board to execute relevant actions after receiving the control command; and the PMS feeds back the equipment state to the mode switching device after detecting that the related control action is finished. After the mode switching is completed, the mode switching device is disconnected from the handshake signal of the PMS, the PMS keeps the working mode unchanged after the mode switching is completed, and works according to the body control command to shield the control command of the mode switching device.
Wherein, direct current distribution board is connected with generating set, energy storage system electricity respectively.
In some embodiments, the port gearbox further comprises a forward clutch, a reverse clutch, and a transfer gear, wherein the transfer gear of the port gearbox is mechanically connected with the port shaft motor; the starboard gear box also comprises a forward clutch, a reverse clutch and a transmission gear; wherein, the transmission gear of the starboard gear box is mechanically connected with the starboard shaft motor.
In some embodiments, the port main engine, the port gearbox, the port axle motor, and the port propeller are mechanically coupled. The starboard main engine, the starboard gear box, the starboard shaft motor and the starboard propeller are mechanically connected.
In some embodiments, the energy storage system employs a fuel cell, a super capacitor.
In some embodiments, the host remote control, the motor remote control, and the PMS are controlled by a mode switching device. The mode switching device has the function of voice prompt, the operation difficulty of a crew is reduced by adopting the functions of automatic mode identification and voice prompt, and meanwhile, except for emergency exit, other faults are all detected
The multimode switching control and fault processing method of the ship power system comprises the following steps:
automatically identifying the working mode of the power system;
interlocking condition aided decision making;
designing a working mode switching rule;
a multi-mode switching control process and a fault processing strategy.
The powertrain operating modes include a host Mode, a PTO Mode (Power Take Out Mode), a PTI Mode (Power Take In Mode), a PTH Mode (Power Take Home Mode), and an unidentified Mode (different from the above normal operating modes). The frequency converter is divided into a port frequency converter and a starboard frequency converter, when the mode of a port is switched, the working mode of the port frequency converter is adjusted, and the working mode of the starboard frequency converter is kept unchanged; when the starboard is switched, the working mode of the starboard frequency converter is adjusted, and the working mode of the port frequency converter is kept unchanged. The same applies hereinafter. The remote control of the host, the remote control of the motor and the PMS are divided into a port part and a starboard part, the port part controls port equipment, the starboard part controls starboard equipment, and a single CPU or a shared CPU can be adopted. When the mode is switched, the control principle is the same as that of the frequency converter, the operation mode is switched by switching the side part, and the operation mode is kept unchanged by the other side part.
The states of the port equipment, the starboard equipment, the PTI electric pump, and the like in each mode are shown in table 1, and the automatic identification principle of the operation mode of the port equipment and the starboard equipment is the same.
TABLE 1 automatic identification of working mode
Figure BDA0003493514930000121
Figure BDA0003493514930000131
In the case of a port main engine, the port main engine drives a port propeller to propel in the main engine mode. When the main clutch of the port gear box is lined up, the mode is called a main engine mode (main engine); when the reversing clutch of the port gear box is arranged, the mode is called a host mode (reversing); the forward clutch and reverse clutch of the port gearbox are both disengaged and are referred to as the host mode (neutral). The host mode of the starboard host refers to the host mode of the port host.
Taking a port host as an example, in the PTO mode, the port host drives a port propeller to propel, and a port shaft with a clutch is arranged in a row to drive a port shaft with a motor to generate power. When the driving clutch of the port gearbox is lined up, the mode is called PTO mode (driving); when the left gearbox reversing clutch is arranged, the mode is called PTO mode (reversing); the port gearbox is said to be in PTO mode (neutral) when both the forward clutch and the reverse clutch are disengaged. The PTO mode of the starboard host is referenced to the PTO mode of the port host.
Taking a port host as an example, in the PTI mode, the host and a port shaft motor drive a port propeller to propel together in an electric mode. The vehicle-starting clutch of the port gearbox is called PTI mode (vehicle starting); when the left gearbox reversing clutch is lined up, the mode is called PTI mode (reversing); the port gearbox is said to be in PTI mode (neutral) when both the forward and reverse clutches are disengaged. The PTI mode of the starboard host refers to the PTI mode of the port host.
Taking a port host as an example, the port host is disconnected from a port gear box (a forward clutch and a reverse clutch are both disconnected) in a PTH mode, and a port shaft motor independently drives a port propeller to propel in an electric mode. When the rotating speed of the port axle belt motor is positive, the mode is called PTH mode (driving); when the rotating speed of the motor of the port axle is negative, the mode is called PTH mode (backing up); a port axle with a motor speed of 0 is called PTH mode (neutral). The PTH mode of the starboard host refers to the PTH mode of the port host.
The unrecognized mode is a general term for other states different from the host mode, PTO mode, PTI mode, and PTH mode.
As shown in fig. 2, the principle of the rule is switched for the operation mode. The following situations are included:
host mode
Figure BDA0003493514930000142
PTO mode; presentation hostToggling between modes and PTO mode;
host mode
Figure BDA0003493514930000143
A PTI mode; indicating a switch back and forth between host mode and PTI mode;
host mode
Figure BDA0003493514930000144
A PTH mode; indicating a switch back and forth between host mode and PTH mode;
PTI mode
Figure BDA0003493514930000145
A PTH mode; indicating a switch back and forth between the PTI mode and the PTH mode.
When going from the unrecognized mode to the host mode or the PTH mode, it is necessary to manually determine and operate because the power system equipment state is unclear. The remaining mode switches may be relayed in the above manner.
The multi-mode switching control process and the fault handling strategy comprise 8 mode switching control processes including switching from a host mode to a PTO mode, switching from the PTO mode to the host mode, switching from the host mode to a PTI mode, switching from the PTI mode to the host mode, switching from the host mode to the PTH mode, switching from the PTH mode to the host mode, switching from the PTI mode to the PTH mode and switching from the PTH mode to the PTI mode.
Since a timeout failure may occur at each step in the multimode switching control flow, the multimode switching control flow and the multimode switching failure processing method will be described together. The port mode switching and starboard mode switching control principle is the same.
The faults occurring during the mode switching process are counted and the fault code is set as shown in table 2. The description is made by a fault code number in each mode switching fault handling method.
TABLE 2 Fault name and numbering table
Figure BDA0003493514930000141
In some embodiments, the process of switching from host mode to PTO mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the frequency converter enters a PTO mode;
the PMS enters a PTO mode;
entering into PTO mode;
(2) the fault processing method comprises the following steps
The main engine mode switching to PTO mode switching fault processing method comprises the following steps:
firstly, when any fault of 'A/B/C/D/E/F/G/H/I/J' occurs, the normal mode switching is stopped, and the host mode is automatically returned;
and secondly, stopping normal mode switching when the fault K occurs, and automatically entering an unidentified mode.
In some embodiments, the process of switching PTO mode to host mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS exits the PTO mode;
fourthly, the frequency converter exits the PTO mode;
entering a host mode;
(2) fault processing method
The failure processing method for switching the PTO mode to the host machine mode comprises the following steps:
when any fault in the 'fault A/B/C' occurs, stopping normal mode switching and automatically returning to a PTO mode;
stopping normal mode switching when any fault of 'E/F/G/H/I/J' occurs, and automatically entering a host mode;
and thirdly, when the fault D/K occurs, stopping normal mode switching and automatically entering an unidentified mode.
In some embodiments, the process of switching the host mode to the PTI mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS enters a heavy-load mode;
fourthly, the frequency converter enters a PTI mode;
entering a PTI mode;
(2) fault processing method
The host mode switching to PTI mode switching fault processing method comprises the following steps:
firstly, when any fault of 'A/B/C/D/E/F/G/H/I/J' occurs, the normal mode switching is stopped, and the host mode is automatically returned;
and stopping normal mode switching when a fault K occurs, entering a PTH mode if the PTH mode is selected to enter at the moment, and automatically entering an unidentified mode if the PTH mode is not selected after a certain time.
In some embodiments, the process of switching the PTI mode to the host mode is as follows:
(1) switching a control flow;
taking over the remote control of a host;
secondly, the motor is taken over for remote control;
the frequency converter exits the PTI mode;
the PMS exits the heavy-load mode;
entering a host mode;
(2) fault processing method
The host mode is switched to the PTI mode, and the fault processing method comprises the following steps:
stopping normal mode switching when any fault in the 'fault A/B/C' occurs, and automatically returning to a PTI mode;
stopping normal mode switching when any fault of 'E/F/G/H/I/J' occurs, and automatically entering a host mode;
and thirdly, when the fault D/K occurs, stopping normal mode switching and automatically entering an unidentified mode.
In some embodiments, the process of switching the host mode to the PTH mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS enters a heavy-load mode;
fourthly, the frequency converter enters a PTH mode;
entering into PTH mode;
(2) fault processing method
The host computer switches to the fault handling method of PTH mode:
firstly, when any fault of 'A/B/C/D/E/F/G/H/I/J' occurs, the normal mode switching is stopped, and the host mode is automatically returned;
and secondly, when the fault K occurs, the normal mode is switched continuously.
In some embodiments, the process of PTH mode switching to host mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the frequency converter exits the PTH mode;
the PMS exits the heavy-load mode;
entering a host mode;
(2) fault processing method
The fault processing method for switching the PTH mode to the host mode comprises the following steps:
stopping switching of a normal mode and automatically returning to a PTH mode when any one of 'failure A/B/C' occurs;
stopping normal mode switching when any fault of D/E/F/G/I/J occurs, and automatically entering a host mode;
and thirdly, when the fault H/K occurs, stopping normal mode switching and automatically entering an unidentified mode.
In some embodiments, the process of switching the PTI mode to the PTH mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS keeps a heavy-load mode;
fourthly, the frequency converter enters a PTH mode from the PTI mode;
entering into PTH mode;
(2) fault processing method
The PTI mode is switched to a PTH mode, and the fault handling method comprises the following steps:
stopping normal mode switching when any fault in the 'fault A/B/C' occurs, and automatically returning to a PTI mode;
stopping normal mode switching when any fault of D/E/F/G/H/I/J occurs, and automatically entering a host mode;
and thirdly, when the 'fault K' occurs, the normal mode is switched continuously.
In some embodiments, the process of PTH mode switching to PTI mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS keeps a heavy-load mode;
fourthly, the frequency converter enters a PTI mode from the PTH mode;
entering a PTI mode;
(2) fault processing method
The fault handling method for switching the PTH mode to the PTI mode comprises the following steps:
when any fault in 'fault A/B/D/K' occurs, the normal mode switching is stopped, and the PTH mode is automatically returned;
and when any one of the 'failure C/E/F/G/H/I/J' occurs, the normal mode switching is stopped, and the host mode is automatically entered.
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 device and the method for multi-mode switching control and fault handling of a ship power system provided by the embodiment of the invention are described in detail, a specific example is applied in the description to explain the principle and the implementation of the invention, and the description of the embodiment is only used for helping to understand the technical scheme and the core idea of the invention; 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 (14)

1. Multimode switch control and fault handling device of boats and ships driving system characterized in that includes: port equipment, starboard equipment, host remote control, motor remote control and PMS; the system comprises a port device, a starboard device and a main machine, wherein the port device and the starboard device respectively comprise PTI electric pumps which provide power for the circulation of gear box lubricating oil of the port device and the starboard device, and the PTI electric pumps are connected with the main machine through electric signals in a remote control mode; the host remote control, the motor remote control and the PMS respectively control the port equipment and the starboard equipment, so that the port equipment and the starboard equipment can operate independently or jointly.
2. The multi-mode switching control and fault handling device of the marine power system of claim 1, further comprising a mode switching device, wherein the mode switching device establishes control signal connections with the host remote control, the motor remote control and the PMS respectively through handshake signals to realize interactive transmission of control signals.
3. A multi-mode switching control and fault handling arrangement for a marine vessel power system according to claim 1 wherein the port equipment includes a port host, a port gearbox, a port axle motor and a port frequency converter and the starboard equipment includes a starboard host, a starboard gearbox, a starboard axle motor and a starboard frequency converter; the port shaft motor is electrically connected with the direct current distribution board through a port frequency converter, the starboard shaft motor is electrically connected with the direct current distribution board through a starboard frequency converter, the direct current distribution board is electrically connected with the alternating current distribution board, and the alternating current distribution board is electrically connected with an alternating current load.
4. A multimode switching control and fault handling device of a marine vessel power system as claimed in claim 3, wherein the port gearbox further comprises a forward clutch, a reverse clutch, a transfer gear, the transfer gear of the port gearbox being mechanically connected to the port shaft motor; the starboard gear box also comprises a forward clutch, a reverse clutch and a transmission gear; a transmission gear of the starboard gear box is mechanically connected with a starboard shaft motor; the PTI electric pump is mechanically connected with a port gear box and a starboard gear box.
5. A multi-mode switching control and fault handling arrangement for a marine vessel power system according to claim 3 wherein the host machine remotely controls a port host machine, a port gearbox and a starboard host machine, a starboard gearbox; the motor remotely controls the port frequency converter and the starboard frequency converter; the PMS controls the motor to be remotely controlled; the port frequency converter controls a port shaft motor; and the starboard frequency converter controls a starboard shaft motor.
6. A multi-mode switching control and fault handling arrangement for a marine vessel power system according to claim 3 wherein the dc distribution board is electrically connected to the generator set and the energy storage system respectively, and the PMS controls the dc distribution board, the ac distribution board, the generator set and the energy storage system.
7. A multimode switching control and fault handling arrangement of a marine vessel power system as claimed in claim 3 wherein the port main engine, port gear box, port shaft motor and port propeller are mechanically connected; the starboard main engine, the starboard gear box, the starboard shaft motor and the starboard propeller are mechanically connected.
8. A method of multi-mode switching control and fault handling for a marine vessel power system according to any one of claims 1 to 7, comprising:
a power system working mode identification step, wherein the working modes are divided into a host mode, a PTO mode, a PTI mode, a PTH mode and an unidentified mode; the unrecognized mode is a general term for other states different from the host mode, PTO mode, PTI mode, PTH mode;
a multi-mode switching control process and a fault processing step, wherein the multi-mode switching control process comprises a host mode switching to a PTO mode, a PTO mode switching to the host mode, a host mode switching to a PTI mode, a PTI mode switching to the host mode, a host mode switching to a PTH mode, a PTH mode switching to the host mode, a PTI mode switching to the PTH mode and a PTH mode switching to the PTI mode; the fault processing step comprises the process of switching the working modes when a fault occurs in the multi-mode switching control process.
9. The multi-mode switching control and fault handling method of the marine power system according to claim 8, wherein for the port side main engine, when the working mode is the main engine mode, the port side main engine drives a port side propeller to propel alone, when the forward clutch of the port side gear box is arranged in line, the mode is called a main engine mode-forward vehicle, when the reverse clutch of the port side gear box is arranged in line, the mode is called a main engine mode-reverse vehicle, and when the forward clutch and the reverse clutch of the port side gear box are both arranged in line, the mode is called a main engine mode-neutral; and for the starboard host, when the working mode is the host mode, the steps are the same as the host mode of the port host.
10. The multi-mode switching control and fault handling method of the ship power system according to claim 8, wherein when the working mode is a PTO mode for the port side host, the port side host drives a port side propeller to propel, the port side shaft with clutch is arranged to drive the port side shaft with motor to generate power, a forward clutch of the port side gearbox is arranged in line and is called PTO mode-forward, a reverse clutch of the port side gearbox is arranged in line and is called PTO mode-reverse, and a forward clutch and a reverse clutch of the port side gearbox are arranged in line and are called PTO mode-neutral; for a starboard host, when the working mode is the PTO mode, the steps are the same as the PTO mode of a port host.
11. The multi-mode switching control and fault handling method of the ship power system according to claim 8, wherein when the working mode of the port main engine is PTI mode, the port main engine and the port shaft motor drive the port propeller to propel in an electric mode, and the vehicle-driving clutch of the port gearbox is aligned and called PTI mode-vehicle driving; when the reversing clutch of the port gearbox is lined up, the mode is called PTI mode-reversing; the PTI mode-neutral gear is called when the forward clutch and the reverse clutch of the port gear box are both disengaged; and when the working mode of the starboard host is the PTI mode, the steps are the same as the PTI mode of the port host.
12. The method of claim 8, wherein for the port side engine, when the operating mode is PTH mode, the port side engine is disconnected from the port side gear box, the forward clutch and the reverse clutch are both disengaged, the port side shaft motor alone drives the port side propeller to propel in electric mode, when the rotational speed of the port side shaft motor is positive, the port side shaft motor is PTH mode-forward, when the rotational speed of the port side shaft motor is negative, the port side shaft motor is PTH mode-reverse, and when the rotational speed of the port side shaft motor is 0, the port side shaft motor is PTH mode-neutral; and when the working mode of the starboard host is the PTH mode, the steps are the same as those of the PTH mode of the port host.
13. The marine vessel power system multi-mode switching control and fault handling method of claim 8, wherein the fault comprises a fault a: taking over the remote control overtime and the fault B of the host: taking over motor remote control overtime and failure C: PMS entry/exit heavy load/PTO timeout, fault D: transducer entry/exit PTH/PTO/PTI timeout, fault E: host remote control allowed loss, failure F: remote control of the motor allows loss, failure G: motor shutdown failure, failure H: PMS fault, fault I: and (3) failure switching-on and switching-off of the positive clutch, failure J: and (4) failure combination and elimination of the reversing clutch and failure K: the host machine is down and fails.
14. The method of multi-mode switching control and fault handling of a marine vessel power system according to claim 13, wherein the process of switching the host mode to PTO mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
thirdly, the frequency converter enters a PTO mode;
the PMS enters a PTO mode;
entering into PTO mode;
(2) the fault processing method comprises the following steps
The method for processing the switching fault of the host mode to the PTO mode comprises the following steps:
firstly, when any one of A/B/C/D/E/F/G/H/I/J faults occurs, stopping normal mode switching and automatically returning to a host mode;
stopping normal mode switching when a fault K occurs, and automatically entering an unidentified mode;
the process of switching the PTO mode to the host mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS exits the PTO mode;
fourthly, the frequency converter exits the PTO mode;
entering a host mode;
(2) fault processing method
The failure processing method for switching the PTO mode to the host mode comprises the following steps:
stopping normal mode switching when any one of A/B/C faults occurs, and automatically returning to a PTO mode;
stopping normal mode switching when any one of E/F/G/H/I/J faults occurs, and automatically entering a host mode;
when a fault D/K occurs, stopping normal mode switching and automatically entering an unidentified mode;
the process of the host mode switching to the PTI mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS enters a heavy-load mode;
fourthly, the frequency converter enters a PTI mode;
entering a PTI mode;
(2) fault processing method
The host mode switching to PTI mode switching fault processing method comprises the following steps:
firstly, when any one of A/B/C/D/E/F/G/H/I/J faults occurs, stopping normal mode switching and automatically returning to a host mode;
stopping normal mode switching when a fault K occurs, entering a PTH mode if the PTH mode is selected to enter at the moment, and automatically entering an unidentified mode if the PTH mode is not selected for a certain time;
the process of the PTI mode switching to the host mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the frequency converter exits the PTI mode;
the PMS exits the heavy-load mode;
entering a host mode;
(2) fault processing method
The host mode is switched to the PTI mode, and the fault processing method comprises the following steps:
stopping normal mode switching when any one of A/B/C faults occurs, and automatically returning to a PTI mode;
stopping normal mode switching when any one of E/F/G/H/I/J faults occurs, and automatically entering a host mode;
when a fault D/K occurs, stopping normal mode switching and automatically entering an unidentified mode;
the process of the host mode switching to the PTH mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS enters a heavy-load mode;
fourthly, the frequency converter enters a PTH mode;
entering into PTH mode;
(2) fault processing method
The host computer switches to the fault handling method of PTH mode:
firstly, when any one of A/B/C/D/E/F/G/H/I/J faults occurs, stopping normal mode switching and automatically returning to a host mode;
when a fault K occurs, the normal mode is switched continuously;
the process of the PTH mode switching to the host mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the frequency converter exits the PTH mode;
the PMS exits the heavy-load mode;
entering a host mode;
(2) fault processing method
The fault processing method for switching the PTH mode to the host mode comprises the following steps:
stopping switching of a normal mode and automatically returning to a PTH mode when any one of A/B/C faults occurs;
stopping normal mode switching when any fault of D/E/F/G/I/J occurs, and automatically entering a host mode;
when a fault H/K occurs, stopping normal mode switching and automatically entering an unidentified mode;
the process of switching the PTI mode to the PTH mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS keeps a heavy-load mode;
fourthly, the frequency converter enters a PTH mode from the PTI mode;
entering into PTH mode;
(2) fault processing method
The PTI mode is switched to a PTH mode, and the fault handling method comprises the following steps:
stopping normal mode switching when any one of A/B/C faults occurs, and automatically returning to a PTI mode;
stopping normal mode switching when any one of D/E/F/G/H/I/J faults occurs, and automatically entering a host mode;
when a fault K occurs, continuing normal mode switching;
the process of the PTH mode switching to the PTI mode is as follows:
(1) switching control flow
Taking over the remote control of a host;
secondly, taking over the remote control of the motor;
the PMS keeps a heavy-load mode;
fourthly, the frequency converter enters a PTI mode from the PTH mode;
entering a PTI mode;
(2) fault processing method
The fault handling method for switching the PTH mode to the PTI mode comprises the following steps:
stopping switching of a normal mode and automatically returning to a PTH mode when any one of A/B/D/K faults occurs;
and secondly, stopping normal mode switching when any one of C/E/F/G/H/I/J faults occurs, and automatically entering a host mode.
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