WO2022033218A1

WO2022033218A1 - Power supply apparatus and method based on high-speed flywheel, and related device

Info

Publication number: WO2022033218A1
Application number: PCT/CN2021/103416
Authority: WO
Inventors: 于艇; 孙辉; 叶育林; 刘晨
Original assignee: 中广核工程有限公司; 深圳中广核工程设计有限公司; 中国广核集团有限公司; 中国广核电力股份有限公司
Priority date: 2020-11-04
Filing date: 2021-06-30
Publication date: 2022-02-17
Also published as: CN112510732A

Abstract

The present invention belongs to the field of nuclear power, and relates to a power supply apparatus and method based on a high-speed flywheel, and a related device. The power supply apparatus supplies power to a control rod driving mechanism, and comprises a high-speed flywheel, a permanent magnet synchronous electric motor, a bidirectional converter, a rectifier and an inverter output unit, wherein the permanent magnet synchronous electric motor is respectively electrically connected to the high-speed flywheel and the bidirectional converter; every two of the bidirectional converter, the rectifier and the inverter output unit are electrically connected; and the rectifier is connected to a plant power, and the inverter output unit is connected to the control rod driving mechanism. The power supply method comprises identifying the current power supply state in real time; when the current power supply state indicates normal power supply, transmitting a plant power to a control rod driving mechanism and a high-speed flywheel by means of a rectifier and an inverter output unit; and when the current power supply state indicates abnormal power supply, driving, by means of the high-speed flywheel, a permanent magnet synchronous electric motor to rotate, and transmitting, to the control rod driving mechanism, a current generated by means of the rotation of the permanent magnet synchronous electric motor. The power supply apparatus in the present application has a high power supply efficiency, a small occupied area and is convenient to maintain.

Description

Power supply device, method and related equipment based on high-speed flywheel

technical field

The present application relates to the field of nuclear power technology, and in particular, to a power supply device, method and related equipment based on a high-speed flywheel.

Background technique

The Control Rod Drive Mechanism (CRDM) is a step-by-step hoisting mechanism, which is an important component to ensure the safe and reliable operation of nuclear power plants. The power supply device needs to supply power to the control rod driving mechanism stably to ensure the normal operation of the control rod driving mechanism. Because the power consumption of the nuclear power plant sometimes fluctuates, and the control rod driving mechanism will also produce load shocks, it is necessary to configure a power supply device with an energy storage function for the control rod driving mechanism.

At present, nuclear power plants generally use a motor-generator set (RAM) or a power system that uses lead-acid batteries for energy storage as the CRDM power source. Among them, the specific structure of the motor-generator set (RAM) is relatively complex, and there are many energy conversion links, large mechanical losses, and low power efficiency. And equipment failure rate and operation and maintenance costs are high. Among the energy storage methods of lead-acid batteries, lead-acid batteries have low power density and large footprint. The battery has high requirements on the workshop, and the battery room needs to be configured separately, and the battery needs to be regularly maintained.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present application is to propose a high-speed flywheel-based power supply device, method, and related equipment, with high power supply efficiency, small footprint, and easy maintenance.

In order to solve the above technical problems, the embodiment of the present application provides a power supply method based on a high-speed flywheel, and adopts the following technical solutions:

A power supply device based on a high-speed flywheel, the power supply device supplies power to a control rod drive mechanism, and the power supply device includes a high-speed flywheel, a permanent magnet synchronous motor, a bidirectional converter, a rectifier and an inverter output device;

The permanent magnet synchronous motor is electrically connected to the high-speed flywheel and the bidirectional converter respectively;

The bidirectional converter, the rectifier and the inverter output device are electrically connected in pairs;

The rectifier receives plant power, and the inverter output device is connected to the control rod drive mechanism.

Further, the bidirectional converter is composed of a bridge circuit.

Further, a switch device is provided between the inverter output device and the control rod driving mechanism.

A method of using the above-mentioned high-speed flywheel-based power supply device, comprising the steps of:

Real-time identification of the current power supply status;

When the current power supply state is normal power supply, the factory power is delivered to the control rod driving mechanism and the high-speed flywheel through the rectifier and the inverter output device, so as to supply power to the control rod driving mechanism;

When the current power supply state is abnormal power supply, the permanent magnet synchronous motor is driven to rotate by the high-speed flywheel, so that the permanent magnet synchronous motor generates current, and the current generated by the permanent magnet synchronous motor is transmitted to the control rod a drive mechanism to supply power to the control rod drive mechanism.

Further, when the current power supply state is normal power supply, the factory power is delivered to the control rod driving mechanism and the high-speed flywheel through the rectifier and the inverter output device, so as to supply power to the control rod driving mechanism The steps include:

When the current power supply state is normal power supply, the factory power is delivered to the control rod driving mechanism through the rectifier and the inverter output device, so as to supply power to the control rod driving mechanism;

starting the inverter mode of the bidirectional converter, and delivering the power for the plant to the permanent magnet synchronous motor through the bidirectional converter in the inverter mode;

The motor mode of the permanent magnet synchronous motor is activated, and the high-speed flywheel is driven to rotate by the permanent magnet synchronous motor in the motor mode.

Further, when the current power supply state is abnormal power supply, the permanent magnet synchronous motor is driven to rotate by the high-speed flywheel, so that the permanent magnet synchronous motor generates current, and the current generated by the permanent magnet synchronous motor is transmitted to the The steps of the control rod drive mechanism include:

When the current power supply state is abnormal power supply, the generator mode of the permanent magnet synchronous motor is started, and the permanent magnet synchronous motor in the generator mode is driven to rotate by the high-speed flywheel, so that the permanent magnet synchronous motor generates current ;

The rectification mode of the bidirectional converter is started, and the current generated by the permanent magnet synchronous motor is transmitted to the inverter output device through the bidirectional inverter in the rectification mode, and the inverter output device converts the current to the inverter output device. Current is delivered to the control rod drive mechanism.

Further, when the current power supply state is abnormal power supply, the step of driving the permanent magnet synchronous motor to rotate through the high-speed flywheel includes:

When the control rod driving mechanism constitutes a group action to generate negative charge impact or the factory electricity stops, the permanent magnet synchronous motor is driven to rotate by the high-speed flywheel.

In order to solve the above technical problems, the embodiment of the present application also provides a power supply system based on a high-speed flywheel, which adopts the following technical solutions:

A high-speed flywheel-based power supply system, the high-speed flywheel-based power supply system comprising a high-speed flywheel-based power supply device and a power supply control device, the power supply control device comprising a state identification module, a first power supply module and a second power supply module;

The state identification module is used to identify the current power supply state in real time;

The first power supply module is configured to deliver factory power to the control rod driving mechanism and the high-speed flywheel through the rectifier and the inverter output device when the current power supply state is normal power supply, so as to send the power to the control Rod drive mechanism power supply;

The second power supply module is used to drive the permanent magnet synchronous motor to rotate through the high-speed flywheel when the current power supply state is abnormal power supply, so that the permanent magnet synchronous motor generates current, and the permanent magnet synchronous motor is driven to rotate. The resulting electrical current is transmitted to the control rod drive mechanism to power the control rod drive mechanism.

In order to solve the above-mentioned technical problems, the embodiment of the present application also provides a computer device, which adopts the following technical solutions:

A computer device includes a memory and a processor, wherein computer-readable instructions are stored in the memory, and the processor implements the steps of the above-mentioned high-speed flywheel-based power supply method when the processor executes the computer-readable instructions.

In order to solve the above technical problems, the embodiments of the present application also provide a computer-readable storage medium, which adopts the following technical solutions:

A computer-readable storage medium, where computer-readable instructions are stored on the computer-readable storage medium, and when the computer-readable instructions are executed by a processor, implement the steps of the above-mentioned high-speed flywheel-based power supply method.

Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

The power supply device based on the high-speed flywheel of the present application has large current discharge capability, low loss, high energy density, high system integration and long service life. It not only meets the power requirements of the Control Rod Drive Mechanism (CRDM), but also significantly improves reliability, convenience, and safety. In addition, the operation and maintenance security is high, and the operation and maintenance environment is significantly improved.

Description of drawings

In order to illustrate the solutions in the present application more clearly, the following will briefly introduce the accompanying drawings used in the description of the embodiments of the present application. For those of ordinary skill, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of an embodiment of a power supply device based on a high-speed flywheel according to the present application;

2 is a flow chart of an embodiment of a power supply method based on a high-speed flywheel according to the present application;

3 is a schematic structural diagram of an embodiment of a power supply system based on a high-speed flywheel according to the present application;

FIG. 4 is a schematic structural diagram of an embodiment of a computer device according to the present application.

Reference signs: 200, computer equipment; 201, memory; 202, processor; 203, network interface; 300, power supply device based on high-speed flywheel; 301, high-speed flywheel; 302, permanent magnet synchronous motor; 303, bidirectional converter 304, rectifier; 305, inverter output device; 400, power supply control device; 401, state identification module; 402, first power supply module; 403, second power supply module; 500, power supply system based on high-speed flywheel.

detailed description

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this application; the terms used herein in the specification of the application are for the purpose of describing specific embodiments only It is not intended to limit the application; the terms "comprising" and "having" and any variations thereof in the description and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the description and claims of the present application or the above drawings are used to distinguish different objects, rather than to describe a specific order.

In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection , it can also be an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings.

The Control Rod Drive Mechanism (CRDM) is a step-by-step lifting mechanism used to lift, insert or maintain the control rod assembly in the core to achieve reactivity control and to ensure the safety and reliability of nuclear power plants. important parts of operation. The task of the control rod drive mechanism power system is to provide power to the control rod drive mechanism. The power supply of the control rod drive mechanism needs to achieve the following functions: during normal operation, to provide a stable coil clamping power supply to the control rod drive mechanism; when the factory power fluctuates, the power supply of the control rod drive mechanism needs to provide the required quality within 1.2s. Electric energy supply; when the control rod driving mechanism operates in groups, the control rod driving mechanism must be able to withstand the impact current of the load action without impacting the upstream power supply.

CRDM power supplies need to be equipped with energy storage devices to cope with load shocks and power supply fluctuations. Currently widely used energy storage devices mainly include chemical energy storage, such as batteries; physical energy storage, such as flywheels, super capacitors and compressed air. At present, nuclear power plants generally use a motor-generator set (RAM) as the CRDM power supply. This method uses a flywheel device that rotates coaxially with the motor as an energy storage element. The main power drives the asynchronous motor to drive the flywheel and the generator to rotate to obtain a stable AC power supply. After rectification, it is converted into a DC power supply for CRDM use. The main equipment of this scheme includes electric motor, coaxial flywheel, generator, generator control cabinet and switch cabinet, etc., and the structure is relatively complex. The flywheel device of this mode rotates coaxially with the motor and the generator, and has low rotational speed and low energy density, and has many energy conversion links, large mechanical loss, and low power efficiency. The structure is complex and the workload of daily maintenance is large. Due to the rotating mechanical devices, the noise and dust in the workshop are relatively large, and the operation and maintenance environment is poor. In order to ensure a suitable operation and maintenance environment, it will lead to high operation and maintenance costs. The system needs to be matched with a lot of excitation and control system equipment, occupies a large area, and has a high construction cost. Moreover, there are many failure links, and the failure rate of the equipment is high.

In addition, some nuclear power plants currently use lead-acid battery energy storage CRDM power solutions. In this scheme, lead-acid batteries are used as energy storage elements to supply power to the CRDM through a rectifier and inverter device. Due to the low power density of lead-acid batteries, the large floor area, and the high requirements of lead-acid batteries on workshops, this solution requires a separate battery room and cannot be used as a replacement for the renovation of old units; lead-acid batteries need regular maintenance to ensure that The remaining power meets the requirements, and the maintenance workload is large.

Continuing to refer to FIG. 1 , the present application provides an embodiment of a power supply device based on a high-speed flywheel,

In this embodiment, the plant power in this application refers to alternating current. The high-speed flywheel-based power supply has high-current discharge capability, low loss, high energy density, high system integration, and long service life. It not only meets the power requirements of the Control Rod Drive Mechanism (CRDM), but also significantly improves reliability, convenience, and safety. In addition, the operation and maintenance security is high, and the operation and maintenance environment is significantly improved. The various components of the power supply device in this application are of high maturity, and the costs of the entire set of equipment and spare parts are low, which can greatly reduce the cost of routine maintenance. Under the condition of selecting reasonable components, the comprehensive efficiency can reach more than 90%, which is much higher than that of the motor-generator scheme that is widely used at present. At the same time, because the equipment of this device is only electrical panel cabinet, the equipment size is small, and the layout requirements are low.

All components of the high-speed flywheel-based power supply device in the present application are installed in cabinets to achieve high integration and high energy density, and have a simple structure, and the core components do not require frequent maintenance. Among them, the components refer to high-speed flywheel, permanent magnet synchronous motor, bidirectional converter, rectifier and inverter output device. Since the high-speed flywheel is set to a sealed design, there is no exposed rotating mechanism, the noise is low, the operation and maintenance safety is high, the operation and maintenance environment is significantly improved, and the safety and convenience of the operation and maintenance personnel are greatly improved.

It should be noted that the high-speed flywheel and the permanent magnet synchronous motor in the present application use a magnetic levitation vacuum flywheel energy storage device, and the flywheel device and the permanent magnet synchronous motor are an integrated closed device, which is convenient for cabinet installation. In addition, since the supercapacitor and the high-speed flywheel have similar discharge characteristics, the supercapacitor can be used as an energy storage element to replace the above-mentioned high-speed flywheel of the present application according to actual needs.

The application can also set up a query module and an alarm module according to actual needs, realize on-site monitoring and status query through human-machine interface, and realize DCS monitoring and fault alarm through communication or hard wiring.

Specifically, the bidirectional converter is composed of a bridge circuit.

In this embodiment, the bidirectional converter module is composed of a bridge circuit. The computer controls it to work in rectifier or inverter mode according to the load and upstream power status. The DC voltage output by the bridge circuit is high and the pulsation is small, which is suitable for use in many situations.

Wherein, a switch device is arranged between the inverter output device and the control rod driving mechanism.

In this embodiment, by arranging a switch device between the inverter output device and the control rod driving mechanism, flexible control of power supply to the control rod driving mechanism is realized.

In this embodiment, the corresponding switch device can be configured according to the actual needs in the application process. It is convenient to control the power supply of the power supply device to the control rod driving mechanism.

Continuing to refer to FIG. 3 , a flow chart of one embodiment of a high-speed flywheel-based power supply method according to the present application is shown. The power supply method uses the above-mentioned high-speed flywheel-based power supply device. The power supply method based on the high-speed flywheel includes the following steps:

S1: Real-time identification of the current power supply status;

S2: when the current power supply state is normal power supply, the factory power is delivered to the control rod driving mechanism and the high-speed flywheel through the rectifier and the inverter output device, so as to supply power to the control rod driving mechanism;

S3: When the current power supply state is abnormal power supply, the permanent magnet synchronous motor is driven to rotate by the high-speed flywheel, so that the permanent magnet synchronous motor generates current, and the current generated by the permanent magnet synchronous motor is transmitted to the a control rod drive mechanism to supply power to the control rod drive mechanism.

In this embodiment, under normal power supply conditions, the factory power supplies power to the control rod driving mechanism through the rectifier and the inverter output, and the factory power is rotated through a permanent magnet synchronous motor with a high-speed flywheel. When the group action of the control rod driving mechanism produces a load shock or the power supply is lost for a short time, the power supply is abnormal at this time, and the mechanical energy stored by the high-speed flywheel is driven by the permanent magnet synchronous motor to rotate, and the current sent by the permanent magnet synchronous motor drives the control rod. The driving mechanism operates for a short time, and the output power quality of the present application is high, the failure rate is low, and the power loss is low.

It should be noted that, in the actual application process, the size of the rectifier capacity can be selected according to the load demand of the CRDM and the charging power of the flywheel device. According to the load characteristics of the CRDM, the inverter corresponding to the output voltage and capacity is selected.

Specifically, in step S2, that is, when the current power supply state is normal power supply, the factory power is delivered to the control rod driving mechanism and the high-speed flywheel through the rectifier and the inverter output device, so as to supply power to all The step of supplying power to the control rod drive mechanism includes:

In this embodiment, the factory power supplies power to the control rod drive mechanism through the rectifier and the inverter output, while the bidirectional converter works in the inverter mode, the permanent magnet synchronous motor works in the motor mode, and the factory power passes through the permanent magnet synchronous motor. The motor rotates with a high-speed flywheel, so that the mechanical energy of the high-speed flywheel is accumulated under normal conditions, the structure is simple, and the failure rate is low.

Specifically, in step S3, that is, when the current power supply state is abnormal power supply, the step of driving the permanent magnet synchronous motor to rotate through the high-speed flywheel includes:

In this embodiment, when the group action of the control rod driving mechanism produces a load impact or the power supply is temporarily lost, the permanent magnet synchronous motor rotates with the mechanical energy stored by the high-speed flywheel, thereby causing the permanent magnet synchronous motor to generate current.

Wherein, in step S3, when the current power supply state is abnormal power supply, the permanent magnet synchronous motor is driven to rotate by the high-speed flywheel, so that the permanent magnet synchronous motor generates current, and the permanent magnet synchronous motor generates a current. The step of delivering current to the control rod drive mechanism includes:

In this embodiment, when the power supply is abnormal, the permanent magnet synchronous motor rotates with the mechanical energy stored by the high-speed flywheel, the permanent magnet synchronous motor works in the generator mode, the bidirectional converter block works in the rectification mode, and the permanent magnet synchronous motor generates the power generated by the permanent magnet synchronous motor. After the current is converted, the control rod driving mechanism can be driven to run for a short time, avoiding the situation that the control rod driving mechanism stops running.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through computer-readable instructions, and the computer-readable instructions can be stored in a computer-readable storage medium. , when the computer-readable instructions are executed, the processes of the above-mentioned method embodiments may be included. Wherein, the aforementioned storage medium may be a non-volatile storage medium such as a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM) or the like.

It should be understood that although the various steps in the flowchart of the accompanying drawings are sequentially shown in the order indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order and may be performed in other orders. Moreover, at least a part of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, and the execution sequence is also It does not have to be performed sequentially, but may be performed alternately or alternately with other steps or at least a portion of sub-steps or stages of other steps.

Further referring to FIG. 3 , as an implementation of the method shown in FIG. 2 above, the present application provides an embodiment of a power supply device based on a high-speed flywheel. The device embodiment corresponds to the method embodiment shown in FIG. 3 . The device can be specifically applied to various electronic devices.

As shown in FIG. 3 , the high-speed flywheel-based power supply system 500 described in this embodiment includes a high-speed flywheel-based power supply device 300 and a power supply control device 400 . The power supply control device includes a state identification module 401 ; a first power supply module 402 ; and a second power supply module 403 . The state identification module 401 is used to identify the current power supply state in real time. The first power supply module 402 is configured to transmit the factory power to the control rod driving mechanism and the high-speed flywheel through the rectifier and the inverter output device when the current power supply state is normal power supply, so as to supply power to the control system. The rod drive mechanism is powered. The second power supply module 403 is used to drive the permanent magnet synchronous motor to rotate through the high-speed flywheel when the current power supply state is abnormal power supply, so that the permanent magnet synchronous motor generates current, and the permanent magnet synchronous motor The resulting electrical current is transmitted to the control rod drive mechanism to power the control rod drive mechanism.

The first power supply module 401 includes a delivery sub-module, a first promoter sub-module and a second promoter sub-module. The conveying sub-module is used for conveying factory power to the control rod driving mechanism through the rectifier and the inverter output device when the current power supply state is normal power supply, so as to supply power to the control rod driving mechanism; the The first starter sub-module is used to start the inverter mode of the bidirectional converter, and the plant power is delivered to the permanent magnet synchronous motor through the bidirectional converter in the inverter mode; the second The starter sub-module is used for starting the motor mode of the permanent magnet synchronous motor, and the high-speed flywheel is driven to rotate by the permanent magnet synchronous motor in the motor mode.

In some optional implementations of this embodiment, the above-mentioned second power supply module 401 is further configured to drive the power supply through the high-speed flywheel when the control rod driving mechanism constitutes a group action to generate a negative charge impact or the factory power stops. The permanent magnet synchronous motor rotates.

The second power supply module 401 includes a third promoter sub-module and a fourth promoter sub-module. The third starter sub-module is used to start the generator mode of the permanent magnet synchronous motor when the current power supply state is abnormal power supply, and the permanent magnet synchronous motor in the generator mode is driven to rotate by the high-speed flywheel, so as to rotate the permanent magnet synchronous motor in the generator mode. making the permanent magnet synchronous motor generate current; the fourth starter sub-module is used to start the rectification mode of the bidirectional converter, and pass the current generated by the permanent magnet synchronous motor through the bidirectional converter in the rectification mode The inverter is sent to the inverter output device, and the current is sent to the control rod drive mechanism through the inverter output device.

To solve the above technical problems, the embodiments of the present application also provide computer equipment. Please refer to FIG. 4 for details. FIG. 4 is a block diagram of a basic structure of a computer device according to this embodiment.

The computer device 200 includes a memory 201 , a processor 202 , and a network interface 203 that communicate with each other through a system bus. It should be noted that only the computer device 200 with components 201-203 is shown in the figure, but it should be understood that implementation of all shown components is not required, and more or less components may be implemented instead. Among them, those skilled in the art can understand that the computer device here is a device that can automatically perform numerical calculation and/or information processing according to pre-set or stored instructions, and its hardware includes but is not limited to microprocessors, special-purpose Integrated circuit (Application Specific Integrated Circuit, ASIC), programmable gate array (Field-Programmable Gate Array, FPGA), digital processor (Digital Signal Processor, DSP), embedded equipment, etc.

The computer equipment may be a desktop computer, a notebook computer, a palmtop computer, a cloud server and other computing equipment. The computer device can perform human-computer interaction with the user through a keyboard, a mouse, a remote control, a touch pad or a voice control device.

The memory 201 includes at least one type of readable storage medium, and the readable storage medium includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), random access memory (RAM), static Random Access Memory (SRAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), Programmable Read Only Memory (PROM), Magnetic Memory, Magnetic Disk, Optical Disk, etc. In some embodiments, the memory 201 may be an internal storage unit of the computer device 200 , such as a hard disk or a memory of the computer device 200 . In other embodiments, the memory 201 may also be an external storage device of the computer device 200, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, flash memory card (Flash Card), etc. Of course, the memory 201 may also include both the internal storage unit of the computer device 200 and its external storage device. In this embodiment, the memory 201 is generally used to store the operating system and various application software installed in the computer device 200 , such as computer-readable instructions for a power supply method based on a high-speed flywheel. In addition, the memory 201 can also be used to temporarily store various types of data that have been output or will be output.

In some embodiments, the processor 202 may be a central processing unit (Central Processing Unit, CPU), a controller, a microcontroller, a microprocessor, or other data processing chips. The processor 202 is typically used to control the overall operation of the computer device 200 . In this embodiment, the processor 202 is configured to execute computer-readable instructions stored in the memory 201 or process data, such as computer-readable instructions for executing the high-speed flywheel-based power supply method.

The network interface 203 may include a wireless network interface or a wired network interface, and the network interface 203 is generally used to establish a communication connection between the computer device 200 and other electronic devices.

In this embodiment, when the power supply is abnormal, the permanent magnet synchronous motor rotates through the mechanical energy stored by the high-speed flywheel, and the current sent by the permanent magnet synchronous motor drives the control rod driving mechanism to run for a short time, the equipment is simple, the failure rate is low, and the power consumption is low. Low.

The present application also provides another embodiment, that is, to provide a computer-readable storage medium, where the computer-readable storage medium stores computer-readable instructions, and the computer-readable instructions can be executed by at least one processor to The at least one processor is caused to perform the steps of the high-speed flywheel-based power supply method as described above.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD), including several instructions to make a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in the various embodiments of this application.

Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The accompanying drawings show the preferred embodiments of the present application, but do not limit the scope of the patent of the present application. This application may be embodied in many different forms, rather these embodiments are provided so that a thorough and complete understanding of the disclosure of this application is provided. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. . Any equivalent structure made by using the contents of the description and drawings of the present application, which is directly or indirectly used in other related technical fields, is also within the scope of protection of the patent of the present application.

Claims

A high-speed flywheel-based power supply device for supplying power to a control rod drive mechanism, characterized in that the power supply device includes a high-speed flywheel, a permanent magnet synchronous motor, a bidirectional converter, a rectifier and an inverter output device;

The permanent magnet synchronous motor is electrically connected to the high-speed flywheel and the bidirectional converter respectively;

The bidirectional converter, the rectifier and the inverter output device are electrically connected in pairs;

The rectifier receives plant power, and the inverter output device is connected to the control rod drive mechanism.
The power supply device based on a high-speed flywheel according to claim 1, wherein the bidirectional converter is composed of a bridge circuit.
The power supply device based on a high-speed flywheel according to claim 1, wherein a switch device is provided between the inverter output device and the control rod driving mechanism.
A method of using the power supply device based on a high-speed flywheel as claimed in any one of claims 1 to 3, characterized in that it comprises the steps of:

Real-time identification of the current power supply status;

When the current power supply state is normal power supply, the factory power is delivered to the control rod driving mechanism and the high-speed flywheel through the rectifier and the inverter output device, so as to supply power to the control rod driving mechanism;

When the current power supply state is abnormal power supply, the permanent magnet synchronous motor is driven to rotate by the high-speed flywheel, so that the permanent magnet synchronous motor generates current, and the current generated by the permanent magnet synchronous motor is transmitted to the control rod a drive mechanism to supply power to the control rod drive mechanism.
The power supply method based on a high-speed flywheel according to claim 4, wherein when the current power supply state is normal power supply, the factory power is delivered to the control rod driving mechanism through the rectifier and the inverter output device and the high-speed flywheel to supply power to the control rod drive mechanism comprising:

When the current power supply state is normal power supply, the factory power is delivered to the control rod driving mechanism through the rectifier and the inverter output device, so as to supply power to the control rod driving mechanism;

starting the inverter mode of the bidirectional converter, and delivering the power for the plant to the permanent magnet synchronous motor through the bidirectional converter in the inverter mode;

The motor mode of the permanent magnet synchronous motor is activated, and the high-speed flywheel is driven to rotate by the permanent magnet synchronous motor in the motor mode.
The power supply method based on a high-speed flywheel according to claim 4, wherein when the current power supply state is abnormal power supply, the permanent magnet synchronous motor is driven to rotate by the high-speed flywheel, so that the permanent magnet synchronous motor generates The step of transmitting the current generated by the permanent magnet synchronous motor to the control rod drive mechanism includes:

When the current power supply state is abnormal power supply, the generator mode of the permanent magnet synchronous motor is started, and the permanent magnet synchronous motor in the generator mode is driven to rotate by the high-speed flywheel, so that the permanent magnet synchronous motor generates current ;

The rectification mode of the bidirectional converter is started, and the current generated by the permanent magnet synchronous motor is transmitted to the inverter output device through the bidirectional inverter in the rectification mode, and the inverter output device converts the current to the inverter output device. Current is delivered to the control rod drive mechanism.
The power supply method based on a high-speed flywheel according to claim 4, wherein when the current power supply state is abnormal power supply, the step of driving the permanent magnet synchronous motor to rotate by the high-speed flywheel comprises:

When the control rod driving mechanism constitutes a group action to generate negative charge impact or the factory electricity stops, the permanent magnet synchronous motor is driven to rotate by the high-speed flywheel.
A power supply system based on high-speed flywheel, characterized in that, the power supply system based on high-speed flywheel includes a power supply device based on high-speed flywheel and a power supply control device, and the power supply control device includes a state identification module, a first power supply module and a second power supply module. power supply module;

The identification module is used to identify the current power supply state in real time;

The first power supply module is configured to deliver factory power to the control rod driving mechanism and the high-speed flywheel through the rectifier and the inverter output device when the current power supply state is normal power supply, so as to send the power to the control Rod drive mechanism power supply;

The second power supply module is used to drive the permanent magnet synchronous motor to rotate through the high-speed flywheel when the current power supply state is abnormal power supply, so that the permanent magnet synchronous motor generates current, and the permanent magnet synchronous motor is driven to rotate. The resulting electrical current is transmitted to the control rod drive mechanism to power the control rod drive mechanism.
A computer device, characterized by comprising a memory and a processor, wherein computer-readable instructions are stored in the memory, and when the processor executes the computer-readable instructions, the implementation of any one of claims 4 to 7 is implemented. The steps of the power supply method based on the high-speed flywheel described above.
A computer-readable storage medium, characterized in that, computer-readable instructions are stored on the computer-readable storage medium, and when the computer-readable instructions are executed by a processor, any one of claims 4 to 7 is implemented. The steps of the power supply method based on the high-speed flywheel described above.