Emergency control method, device and equipment for generator set controller and medium

Abstract

The invention relates to the technical field of generator control, and discloses an emergency control method, device and equipment for a generator set controller and a medium, the same generator set at least comprises two generator controllers, the method is applied to any current generator controller in the generator set, and the method comprises the following steps: determining whether a target generator controller has a fault or not; the target generator controller is another generator controller in the generator set; if the target generator controller breaks down, power supply of the target generator controller is cut off, and input of a first current and voltage signal and output of a control signal based on a target generator are conducted; and accessing the first current and voltage signal, and carrying out parallel operation control on the target generator and the current generator. According to the invention, the generator controlled by the faulty generator controller can be restarted to solve related faults caused by the faulty generator controller, and the normal generator controller automatically carries out parallel operation control on all generators without manpower, so that the operation reliability of the system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of generator control, and particularly to an emergency control method, device, equipment and medium for a generator set controller. Background Art

[0002] Currently, in the working scenario of multiple parallel generator sets, if one or more generator controllers are damaged, it will lead to problems such as inability to start, unstable operation, function failure, safety protection and communication failure. Currently, the market can only handle repairs by reporting. During the waiting period for maintenance, only by reducing the load, temporarily borrowing generator sets or even shutting down can the power demand be met, resulting in power supply interruption or instability and inability to meet the power consumption demand in terms of power supply; in terms of equipment maintenance, it increases the risk of equipment damage and maintenance costs; in business operations, the communication service quality deteriorates, causing economic losses; in terms of reputation and image, it has a great negative impact, reducing public trust, damaging the brand image and affecting market competitiveness.

[0003] To avoid the above problems, in the prior art, an emergency control module is deployed to control the fuel pump and the starting module to avoid the situation where the power generation operation cannot run normally due to a failure of the control system. However, in actual operation, only the fuel pump and the starter are controlled emergently, and other faults of the generator set controller cannot be solved. Moreover, manual control is required and automatic emergency control cannot be achieved, which poses many risks to unfamiliar operators. Summary of the Invention

[0004] In view of this, the present invention provides an emergency control method, device, equipment and medium for a generator set controller to solve the problem that all faults of the generator set controller cannot be automatically solved.

[0005] In a first aspect, the present invention provides an emergency control method for a generator set controller. At least two generator controllers are included in the same generator set. The method is applied to any current generator controller in the generator set and includes:

[0006] Determine whether the target generator controller fails. The target generator controller is another generator controller in the generator set;

[0007] If the target generator controller fails, cut off the power supply of the target generator controller, and the input and output of the control signal based on the first current and voltage signal of the target generator;

[0008] Connect the first current and voltage signal, and perform parallel operation control on the target generator and the current generator according to the second current and voltage signal and the first current and voltage information of the current generator.

[0009] The emergency control method of the generator set controller provided by the present invention is as follows: after the current generator controller determines that the target generator controller fails, it cuts off the power supply of the target generator controller, and based on the input of the first current and voltage signal of the target generator and the output of the control signal, the current generator controller accesses the first current and voltage signal, and performs parallel operation control on the target generator and the current generator according to the second current and voltage signal and the first current and voltage information of the current generator. By cutting off the power supply, analog signal input and control signal output of the faulty generator controller, the present invention can restart the generator controlled by the faulty generator controller, solve the related faults caused by the faulty generator controller through restart, and perform automatic parallel operation control on all generators by the normal generator controller without manual intervention, improving the reliability of the normal operation of the generator set.

[0010] In an optional embodiment, cutting off the power supply of the target generator controller, and based on the input of the first current and voltage signal of the target generator and the output of the control signal, includes: generating a first switch control signal, and opening the first switch between the target generator and the first circuit breaker according to the first switch control signal; cutting off the communication between the target generator controller and the target engine controller and the target generator voltage regulator plate, and controlling the target engine and the target fuel supply pump corresponding to the target generator controller to stop; generating a second switch control signal, and opening the second switch between the target generator controller and the power supply according to the second switch control signal; generating a third switch control signal, and opening the third switch between the target generator controller and the target generator according to the third switch control signal.

[0011] By shutting off the corresponding lines when the generator controller fails, the present invention can cut off the power supply, signal input and signal output of the faulty generator controller, thus avoiding the signal conflict problem caused by the faulty generator controller. At the same time, stopping the engine and the fuel supply pump can prepare for the subsequent restart operation.

[0012] In an optional embodiment, after controlling the target engine and the target fuel supply pump corresponding to the target generator controller to stop, it further includes: determining whether the emergency control function is allowed. If the emergency control function is allowed, continue to generate the second switch control signal, and open the second switch between the target generator controller and the power supply according to the second switch control signal.

[0013] By judging whether the emergency control function is allowed, the present invention can determine whether the user currently agrees to perform parallel operation processing by the normal generator controller when a failure occurs, thus ensuring the normal operation of the normal system. If it is not allowed according to the actual situation, reduce the load operation or stop for maintenance, providing a more flexible processing method for the user.

[0014] In an alternative embodiment, a first current voltage signal is accessed, and parallel operation control is performed on a target generator and a current generator based on a second current voltage signal and first current voltage information of the current generator, including: generating a fourth switch control signal, and turning on a fourth switch between the current generator controller and the target generator according to the fourth switch control signal to access the first current voltage signal; generating a fifth switch control signal, and closing a fifth switch between the target engine and the DC power supply according to the fifth switch control signal to start the target engine; generating a sixth switch control signal, and closing a sixth switch between the target fuel pump and the DC power supply according to the sixth switch control signal to start the target fuel pump; determining whether a preset parallel operation condition is satisfied according to the first current voltage signal and the second current voltage signal; if the preset parallel operation condition is satisfied, generating a seventh switch control signal, and closing a seventh switch between the target generator and a first circuit breaker according to the seventh switch control signal; generating an eighth switch signal, and closing an eighth switch between the target generator and the busbar corresponding to the current control engine and the load according to the eighth switch signal; and performing parallel operation control on the target generator and the current generator according to the load.

[0015] After the generator controller fails and shuts off the corresponding circuits, the present invention can turn on the corresponding circuits again, enabling the normal generator controller to replace the signal input and signal output of the faulty generator controller. By restarting, the related faults caused by the faulty generator controller can be resolved, thereby accurately controlling the related components and improving the reliability of the normal operation of the generator set.

[0016] In an alternative embodiment, before determining whether a preset parallel operation condition is satisfied according to the first current voltage signal and the second current voltage signal, it further includes: adjusting the speed of the target engine until a preset operating speed is reached; and adjusting the voltage regulator of the target generator until a preset operating voltage is reached.

[0017] Through speed regulation and voltage regulation, the present invention can restart the generator corresponding to the faulty generator controller, enabling the normal generator controller to perform parallel operation control on the generator set and ensuring the normal operation of the generator set.

[0018] In an alternative embodiment, after determining that the target generator controller fails, it further includes: controlling a protection device to turn off a preset non-critical load.

[0019] By turning off the non-critical load, the present invention can reduce the demand of the load of the generator set for the power generation power before the generator corresponding to the faulty generator controller restarts and performs parallel operation, preventing the generator corresponding to the normal generator controller from overloading, or causing the corresponding engine to be depressed in speed or even flame out, resulting in unstable power generation frequency and no power generation output, thereby ensuring the normal operation of the entire system to the greatest extent.

[0020] In a second aspect, the present invention provides an emergency control device for a generator set controller. The same generator set includes at least two generator controllers. The device is applied to any current generator controller in the generator set and includes:

[0021] A fault determination module, configured to determine whether a target generator controller has a fault, where the target generator controller is another generator controller in the generator set;

[0022] A cut-off control module, configured to cut off the power supply of the target generator controller if the target generator controller has a fault, and based on the input of the first current and voltage signal of the target generator and the output of the control signal;

[0023] A paralleling control module, configured to access the first current and voltage signal, and perform paralleling control on the target generator and the current generator according to the second current and voltage signal and the first current and voltage information of the current generator.

[0024] In a third aspect, the present invention provides a computer device, including: a memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to execute the emergency control method for the generator set controller according to the first aspect or any corresponding embodiment thereof.

[0025] In a fourth aspect, the present invention provides a computer-readable storage medium, on which computer instructions are stored. The computer instructions are used to cause a computer to execute the emergency control method for the generator set controller according to the first aspect or any corresponding embodiment thereof.

[0026] In a fifth aspect, the present invention provides a computer program product, including computer instructions, which are used to cause a computer to execute the emergency control method for the generator set controller according to the first aspect or any corresponding embodiment thereof. Description of the Drawings

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a flowchart of the emergency control method for the generator set controller according to an embodiment of the present invention;

[0029] Figure 2It is a schematic diagram of control signal interaction for the emergency control method of a generator set controller according to an embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of signal acquisition for the emergency control method of a generator set controller according to an embodiment of the present invention;

[0031] Figure 4 It is a flowchart of the emergency control method for another generator set controller according to an embodiment of the present invention;

[0032] Figure 5 It is a schematic diagram of paralleling control for the emergency control method of another generator set controller according to an embodiment of the present invention;

[0033] Figure 6 It is a schematic diagram of restart control for the emergency control method of another generator set controller according to an embodiment of the present invention;

[0034] Figure 7 It is a schematic diagram of power-off control for the emergency control method of another generator set controller according to an embodiment of the present invention;

[0035] Figure 8 It is a schematic diagram of signal switching input control for the emergency control method of another generator set controller according to an embodiment of the present invention;

[0036] Figure 9 It is a schematic diagram of closing control for the emergency control method of another generator set controller according to an embodiment of the present invention;

[0037] Figure 10 It is a flowchart of the emergency control method for yet another generator set controller according to an embodiment of the present invention;

[0038] Figure 11 It is a specific flowchart of the emergency control method for yet another generator set controller according to an embodiment of the present invention;

[0039] Figure 12 It is a structural block diagram of the emergency control device for a generator set controller according to an embodiment of the present invention;

[0040] Figure 13 It is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. Detailed implementation manners

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] The embodiments of the present invention are applicable to scenarios where multiple parallel generator sets work simultaneously. In the related art, in order for the generator set to continue operating when one or more engine controllers (Generator Control Unit, GCU) are damaged, an emergency control module is deployed in the generator set control system. Among them, the battery in the control system is electrically connected to the generator set controller for supplying power to the generator set controller. The generator set controller is electrically connected to the fuel pump and the starting module for driving the fuel pump and the starting module to work. The emergency control module is electrically connected to the battery, the fuel pump, and the starting module for driving the fuel pump and the starting module to work when the generator set controller fails, avoiding the situation where power generation operations cannot run normally due to control system failures and improving the reliability of the overall control system. However, the emergency control module only performs emergency control on the fuel pump and the starter, cannot solve other failures of the generator set controller, and requires manual control and cannot perform automatic emergency control, which poses many risks for unfamiliar operators. Therefore, the embodiments of the present invention provide an emergency control method for a generator set controller, which cuts off its power supply, signal input, and signal output when the generator controller fails, and the normal generator controller replaces the signal input and signal output of the faulty generator controller to achieve parallel control by the normal generator controller after restarting after a failure, solving the related failures caused by the faulty generator controller.

[0043] According to the embodiments of the present invention, an embodiment of an emergency control method for a generator set controller is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0044] In this embodiment, an emergency control method for a generator set controller is provided. The same generator set includes at least two generator controllers, and the method can be used for any current engine controller in the above-mentioned generator set. Figure 1 It is a flowchart of the emergency control method for a generator set controller according to the embodiments of the present invention. As Figure 1 shown, the process includes the following steps:

[0045] Step S101, determine whether the target generator controller fails. The target generator controller is another generator controller in the generator set.

[0046] Specifically, in the embodiment of the present invention, in a twin generator set or a multi-twin generator set with an even number of generators, the generator controllers are grouped in pairs. That is, each group of generator sets includes a first generator controller and a second generator controller, and each generator controller in each group can identify faults of the generator controllers in the same group. In the embodiment of the present invention, the generator controller performing fault identification is used as the current generator controller, and the generator controller to be fault-identified is used as the target generator controller. During the process of the current generator controller identifying the target generator controller, it is judged whether the target generator controller fails according to the identification result. The identification and judgment processes are conventional technical means in the art and will not be elaborated here again.

[0047] Step S102, if the target generator controller fails, cut off the power supply of the target generator controller, and the input and output of the control signal based on the first current and voltage signals of the target generator.

[0048] Specifically, in the embodiment of the present invention, in the generator set, the first generator controller and the second generator controller respectively communicate with different engine controllers and generator voltage regulators to achieve speed control and voltage control of different generators, and at the same time receive the current and voltage signals fed back by different generators. As Figure 2 shown, taking the first generator controller as GCU-A and the second engine controller as GCU-B as an example, the first generator controller GCU-A communicates with the corresponding first engine controller ECU-A through the CAN bus to achieve coordinated engine speed regulation and signal interaction, adjust the speed of the first generator G1, and communicates with the corresponding first generator voltage regulator AVR-A through the MODBUS protocol to achieve coordinated voltage regulation and signal interaction of the first generator G1; the second generator controller GCU-B communicates with the corresponding second engine controller ECU-B through the CAN bus to achieve coordinated engine speed regulation and signal interaction, adjust the speed of the second generator G2, and communicates with the corresponding second generator voltage regulator AVR-B through the MODBUS protocol to achieve coordinated voltage regulation and signal interaction of the second generator G2.

[0049] In some alternative embodiments, the first generator G1 and the second generator G2 are in a group, as Figure 3As shown, during operation, it involves the acquisition of phase current and phase voltage, busbar current and busbar voltage, parallel operation control, and closing control. Among them, I1, I2, and I3 are the three-phase current signals of the first generator G1 collected by current transformers, and i1, i2, and i3 are the three-phase current signals of the second generator G2 collected by current transformers. U1, U2, and U3 collect the three-phase voltage signals of the first generator G1; u1, u2, and u3 collect the three-phase voltage signals of the second generator G2. I4 and i4 are the busbar current signals of the generator set collected by current transformers, and V1, V2, V3 and v1, v2, v3 are the three-phase voltage signals collected from the busbar. GB1 and GB2 are parallel operation control switches, and MB1 is a closing control switch, which controls the output of the generator set busbar to the load LOAD.

[0050] In an alternative embodiment, taking the first generator controller GCU-A as the current engine controller and the second generator controller GCU-B as the target engine controller as an example, if the first generator controller GCU-A recognizes that the second generator controller GCU-B fails, it cuts off the input of the second generator controller GCU-B based on the current and voltage signals of the second generator G2, and at the same time cuts off the communication between the second generator controller GCU-B and the second engine controller ECU-B and the second generator voltage regulator AVR-B, that is, cuts off the output of the control signal of the second generator controller GCU-B. To avoid physical interference of bus signals and analog signals to the emergency control process, it is also necessary to cut off the power supply of the second generator controller GCU-B. Correspondingly, if the second generator controller GCU-B recognizes that the first generator controller GCU-A fails, it cuts off the input of the first generator controller GCU-A based on the current and voltage signals of the first generator G1, and at the same time cuts off the communication between the first generator controller GCU-A and the first engine controller ECU-A and the first generator voltage regulator AVR-A, that is, cuts off the output of the control signal of the first generator controller GCU-A. To avoid physical interference of bus signals and analog signals to the emergency control process, it is also necessary to cut off the power supply of the first generator controller GCU-A.

[0051] Step S103, connect the first current and voltage signal, and perform parallel operation control on the target generator and the current generator according to the second current and voltage signal and the first current and voltage information of the current generator.

[0052] Specifically, in the embodiment of the present invention, taking the first generator controller GCU-A as the normal generator controller and the second generator controller GCU-B as the faulty generator controller as an example, after cutting off the power supply, sensor signal input, and control signal output of the second generator controller GCU-B, the second generator G2 loses control. Therefore, it is necessary to connect the current and voltage signals of the second generator G2 to the first generator controller GCU-A, and the first generator controller GCU-A communicates with the second engine controller ECU-B and the second generator voltage regulator AVR-B. By adjusting the speed and voltage of the second generator G2, the restart of the second generator G2 is achieved, and the first generator controller GCU-A performs parallel operation control according to the current and voltage signals of the current first generator G1 and the second generator G2.

[0053] In some alternative embodiments, if the first generator controller GCU-A is the faulty generator controller and the second generator controller GCU-B is the normal generator controller, after cutting off the power supply, sensor signal input, and control signal output of the first generator controller GCU-A, the first generator G1 loses control. Therefore, it is necessary to connect the current and voltage signals of the first generator G1 to the second generator controller GCU-B, and the second generator controller GCU-B communicates with the first engine controller ECU-A and the first generator voltage regulator AVR-A. By adjusting the speed and voltage of the first generator G1, the restart of the first generator G1 is achieved, and the second generator controller GCU-B performs parallel operation control according to the current and voltage signals of the second generator G2 and the first generator G1.

[0054] The emergency control method for the generator set controller provided by the present invention, after the current generator controller determines that the target generator controller fails, cuts off the power supply of the target generator controller, and the input and output of the control signal based on the first current and voltage signal of the target generator. The current generator controller accesses the first current and voltage signal, and performs parallel operation control on the target generator and the current generator according to the second current and voltage signal and the first current and voltage information of the current generator. By cutting off the power supply, analog signal input, and control signal output of the faulty generator controller, the present invention can achieve the restart of the generator controlled by the faulty generator controller, solve the related faults caused by the faulty generator controller through restart, and perform automatic parallel operation control of all generators by the normal generator controller without manual intervention, improving the reliability of the normal operation of the generator set.

[0055] In this embodiment, an emergency control method for a generator set controller is provided. The same generator set includes at least two generator controllers, and the method can be used for any current engine controller in the above engine set. Figure 4is a flowchart of an emergency control method for a generator set controller according to an embodiment of the present invention. As Figure 4 shown, the process includes the following steps:

[0056] Step S401: Determine whether the target generator controller fails. The target generator controller is another generator controller in the generator set. For details, please refer to Figure 1 step S101 of the embodiment shown herein, which will not be elaborated herein.

[0057] Step S402: If the target generator controller fails, cut off the power supply of the target generator controller, and the input of the first current and voltage signals of the target generator and the output of the control signal.

[0058] Specifically, the above step S402 includes:

[0059] Step S4021: Generate a first switch control signal, and open the first switch between the target generator and the first circuit breaker according to the first switch control signal.

[0060] Specifically, in the embodiment of the present invention, as Figure 5 shown, in order to realize the on-off control between the first generator controller GCU-A and the first generator G1 and the corresponding first circuit breaker GB1 (i.e., the paralleling control switch), a switch K1 is provided between the first generator G1 and the first circuit breaker GB1; in order to realize the on-off control between the second generator controller GCU-B and the second generator G2 and the corresponding second circuit breaker GB2 (i.e., the paralleling control switch), a normally closed relay K2 is provided between the second generator G2 and the second circuit breaker GB2. At the same time, in order to realize the on-off control between the second generator controller GCU-B and the first generator G1 and the first circuit breaker GB1, normally closed relays KB1 and KB2 are provided between the first generator G1 and the first circuit breaker GB1; in order to realize the on-off control between the first generator controller GCU-A and the second generator G2 and the second circuit breaker GB2, normally closed relays KA1 and KA2 are provided between the second generator G2 and the second circuit breaker GB2. When the first generator controller GCU-A and the second generator controller GCU-B are both normal, KA1 and KB1 are respectively controlled to be closed. When the voltage, frequency, and phase conditions are all met, the first generator controller GCU-A and the second generator controller GCU-B can respectively control the corresponding K1 and K2 to be closed to realize the paralleling control of the generator set.

[0061] In an optional implementation manner, as Figure 5As shown, when a fault occurs in the first generator controller GCU-A, GCU-B cuts off the above current and voltage signals from being input into the faulty first generator controller GCU-A through KB1, thereby completely cutting off the parallel operation control of the first generator controller GCU-A and avoiding control signal interference. Similarly, when a fault occurs in the second generator controller GCU-B, the first generator controller GCU-A cuts off the above current and voltage signals from being input into the faulty second generator controller GCU-B through KA1, thereby completely cutting off the parallel operation control of the second generator controller GCU-B and avoiding control signal interference.

[0062] Step S4022: Cut off the communication between the target generator controller and the target engine controller and the target generator voltage regulator board, and control the target engine and the target fuel supply pump corresponding to the target generator controller to stop.

[0063] Specifically, in the embodiment of the present invention, as Figure 6 shown, in order to achieve the start control of the first generator controller GCU-A over the first engine E1 and the first fuel supply pump P1, a switch KQ1 is provided between the first engine motor M1 and the DC power supply, and a switch KY1 is provided between the first fuel supply pump P1 and the DC power supply; in order to achieve the start control of the second generator controller GCU-B over the second engine E2 and the second fuel supply pump P2, a switch KQ2 is provided between the second engine motor M2 and the DC power supply, and a switch KY2 is provided between the second fuel supply pump P2 and the DC power supply. At the same time, in order to achieve the start control of the first generator controller GCU-A over the second engine E2 and the second fuel supply pump P2, a switch KQA is provided between the second engine motor M2 and the DC power supply, and a switch KYA is provided between the second fuel supply pump P2 and the DC power supply; in order to achieve the start control of the second generator controller GCU-B over the first engine E1 and the first fuel supply pump P1, a switch KQB is provided between the first engine motor M1 and the DC power supply, and a switch KYB is provided between the first fuel supply pump P1 and the DC power supply.

[0064] In some alternative embodiments, taking the first generator controller GCU-A as an example, when there is no fault, the first generator controller GCU-A controls KQ1 to close and then open after the engine starts. When a fault occurs in the first generator controller GCU-A, the second generator controller GCU-B cuts off the communication between the first generator controller GCU-A and the first engine controller ECU-A and the first generator voltage regulator board AVR-A through a message, which is equivalent to cutting off the control signal input from the first generator controller GCU-A to G1. At this time, G1 loses control. In order to enable GCU-B to perform parallel operation control on two generators simultaneously, it is necessary to first stop the first engine E1 and the first fuel supply pump P1 corresponding to the faulty first generator controller GCU-A, so as to achieve parallel operation control during the restart process.

[0065] Step S4023: Determine whether to allow the emergency control function. If the emergency control function is allowed.

[0066] Specifically, in the embodiment of the present invention, after a certain generator controller in the generator set fails, it is also necessary to determine whether the user allows the emergency control function at this time. If the user does not set the emergency control function in advance, when a failure occurs, the power demand can only be met by reducing the load or shutting down the machine, and the operation resumes after maintenance. If the user sets the emergency control function in advance, the subsequent operations are continued.

[0067] Step S4024: Generate a second switch control signal, and turn on the second switch between the target generator controller and the power supply according to the second switch control signal.

[0068] Specifically, in the embodiment of the present invention, as Figure 7 shown, in order to realize the power supply control of the first generator controller GCU-A to the second generator controller GCU-B, a switch KA0 is set between the power supply and the second generator controller GCU-B. At the same time, in order to realize the power supply control of the second generator controller GCU-B to the first generator controller GCU-A, a switch KB0 is set between the power supply and the first generator controller GCU-A. Among them, KA0 and KB0 are normally closed relays. When there is no power supply control, the output end is in a closed state (normally closed by default), achieving the purpose of wire connection. When it is diagnosed that one of the generator controllers fails and cannot normally control the corresponding generator set to work, the normal generator controller in a group controls the switch KA0 or the switch KB0 to cut off the power supply of the corresponding faulty generator controller, including the positive and negative poles of the power supply and the emergency stop signal, so as to avoid physical interference of the bus signal and the analog signal to the emergency control.

[0069] Step S4025: Generate a third switch control signal, and turn on the third switch between the target generator controller and the target generator according to the third switch control signal.

[0070] Specifically, in the embodiment of the present invention, as Figure 8 shown, in order to realize the control of the input of the current and voltage signals of the first generator G1 to the second generator controller GCU-B by the first generator controller GCU-A, switches KA3 and KA4 are set between the second generator G2 and the second generator controller GCU-B. At the same time, in order to realize the control of the input of the current and voltage signals of the second generator G2 to the first generator controller GCU-A by the second generator controller GCU-B, switches KB3 and KB4 are set between the first generator G1 and the first generator controller GCU-A.

[0071] In some alternative embodiments, taking the first generator controller GCU-A as an example, when the first generator controller GCU-A does not malfunction, the second generator controller GCU-B controls KB3 to close and KB4 to open, so that the current and voltage signals of the first generator G1: I1, I2, I3, U1, U2, U3 are input to the first generator controller GCU-A. When the first generator controller GCU-A malfunctions, the second generator controller GCU-B controls KB3 to open, thus cutting off the input of the current and voltage signals of the first generator G1 to the faulty first generator controller GCU-A. Similarly, when the second generator controller GCU-B does not malfunction, the first generator controller GCU-A controls KA3 to close and KA4 to open, so that the current and voltage signals of the second generator G2: i1, i2, i3, u1, u2, u3 are input to the second generator controller GCU-B. When the second generator controller GCU-B malfunctions, the first generator controller GCU-A controls KA3 to open, thus cutting off the input of the current and voltage signals of the second generator G2 to the faulty second generator controller GCU-B.

[0072] Step S403: Connect the first current and voltage signal, and perform parallel operation control on the target generator and the current generator according to the second current and voltage signal and the first current and voltage information of the current generator.

[0073] Specifically, the above step S403 includes:

[0074] Step S4031: Generate a fourth switch control signal, and open the fourth switch between the current generator controller and the target generator according to the fourth switch control signal to connect the first current and voltage signal.

[0075] Specifically, in the embodiments of the present invention, as Figure 8As shown, taking the failure of the first generator controller GCU-A as an example, after the second generator controller GCU-B controls KB3 to open, thereby cutting off the current and voltage signals of the first generator G1 from being input to the faulty first generator controller GCU-A, it is also necessary to control the switch KB4 to close, so that the current and voltage signals of the first generator G1: I5, I6, I7, U5, U6, U7 (corresponding to I1, I2, I3, U1, U2, U3) are input to the second generator controller GCU-B, that is, the second generator controller GCU-B realizes the acquisition of the three-phase current and three-phase voltage of the first generator G1. Similarly, when the second generator controller fails, the first generator controller GCU-A controls KA3 to open, thereby cutting off the current and voltage signals of the second generator G2 from being input to the faulty second generator controller GCU-B, and then it is necessary to control the switch KA4 to close, so that the current and voltage signals of the second generator G2: i5, i6, i7, u5, u6, u7 (corresponding to i1, i2, i3, u1, u2, u3) are input to the first generator controller GCU-A, that is, the first generator controller GCU-A realizes the acquisition of the three-phase current and three-phase voltage of the second generator G2.

[0076] Step S4032: Generate a fifth switch control signal, and close the fifth switch between the target engine and the DC power supply according to the fifth switch control signal to start the target engine.

[0077] Specifically, in the embodiment of the present invention, as Figure 6 shown, taking the failure of the first generator controller GCU-A as an example, after the second generator controller GCU-B cuts off the communication between the first generator controller GCU-A and the first engine controller ECU-A and the first generator voltage regulator AVR-A through a message, and shuts down the first engine E1 and the first fuel pump P1, it is necessary to close the switch KQB to restart the first engine E1. Similarly, when the first generator controller GCU-A fails, the first generator controller GCU-A cuts off the communication between the second generator controller GCU-B and the second engine controller ECU-B and the second generator voltage regulator AVR-B through a message, and shuts down the second engine E2 and the second fuel pump P2, and then it is necessary to close the switch KQA to restart the second engine E2. The processing process when the second generator controller GCU-B fails is the same as the above process.

[0078] Step S4033: Generate a sixth switch control signal, and close the sixth switch between the target fuel pump and the DC power supply according to the sixth switch control signal to start the target fuel pump.

[0079] Specifically, in the embodiment of the present invention, as Figure 6As shown, taking the failure of the first generator controller GCU-A as an example, after the second generator controller GCU-B cuts off the communication between the first generator controller GCU-A and the first engine controller ECU-A and the first generator voltage regulator AVR-A through a message, and shuts down the first engine E1 and the first fuel pump P1, the switch KYB needs to be closed to restart the first fuel pump P1. Similarly, when the first generator controller GCU-A fails, the first generator controller GCU-A cuts off the communication between the second generator controller GCU-B and the second engine controller ECU-B and the second generator voltage regulator AVR-B through a message, and after shutting down the second engine E2 and the second fuel pump P2, the switch KYA needs to be closed to restart the second fuel pump P2. The processing procedure for the failure of the second generator controller GCU-B is the same as the above procedure.

[0080] Step S4034: Adjust the speed of the target engine until the preset operating speed is reached; adjust the voltage of the target generator voltage regulator until the preset operating voltage is reached.

[0081] Specifically, in the embodiment of the present invention, after restarting the generator and the fuel pump corresponding to the failed generator controller, communication can be carried out between the normal generator controller and the engine controller and the generator voltage regulator corresponding to the failed generator controller, so as to adjust the speed of the generator corresponding to the failed generator controller, adjust the voltage of the generator voltage regulator, and correspondingly realize the speed and voltage regulation of the generator, and gradually restart the generator and make it reach the working state.

[0082] Step S4035: Determine whether the preset paralleling condition is satisfied according to the first current-voltage signal and the second current-voltage signal.

[0083] Specifically, in the embodiment of the present invention, before the normal generator controller performs paralleling control on two generators, it needs to judge whether the current paralleling condition is satisfied, mainly judging whether the voltage, frequency, phase, etc. of the generators are consistent with the busbar according to the current-voltage signals of the two, which is a conventional technical means in the art and will not be elaborated here. If not satisfied, continue to adjust the corresponding engine and generator voltage regulator until the paralleling condition is satisfied.

[0084] Step S4036: If the preset paralleling condition is satisfied, generate a seventh switch control signal, and close the seventh switch between the target generator and the first circuit breaker according to the seventh switch control signal.

[0085] Specifically, in the embodiment of the present invention, if the paralleling condition is satisfied, the circuit breaker of the generator corresponding to the failed generator controller is closed. As Figure 5As shown in the figure, when a fault occurs in the first generator controller GCU-A, the second generator controller GCU-B cuts off the above current and voltage signals from being input into the faulty first generator controller GCU-A through KB1, thereby completely cutting off the parallel operation control of the first generator controller GCU-A. After that, it is also necessary to control KB2 to close after determining that the parallel operation conditions are met, so that the second generator controller GCU-B controls the parallel operation of the first generator G1 according to the parallel operation conditions. Similarly, when a fault occurs in the second generator controller GCU-B, the first generator controller GCU-A cuts off the above current and voltage signals from being input into the faulty second generator controller GCU-B through KA1, thereby completely cutting off the parallel operation control of the second generator controller GCU-B. After that, it is also necessary to control KA2 to close after determining that the parallel operation conditions are met, so that the first generator controller GCU-A controls the parallel operation of the second generator G2 according to the parallel operation conditions.

[0086] Step S4037: Generate an eighth switching signal and close the eighth switch between the busbar corresponding to the target generator and the current controlled generator and the load according to the eighth switching signal.

[0087] Specifically, in the embodiment of the present invention, as Figure 9 shown in the figure, in order to control the on-off of the circuit between the control busbar and the load, a relay KAMB and a relay KBMB are respectively arranged in front of the closing control switch MB1 between the busbar and the load. Among them, the control signal of the relay KAMB is connected to the first generator controller GCU-A, and the control signal of the relay KBMB is connected to the second generator controller GCU-B. Under normal circumstances, the two generator controllers respectively control the circuit between the busbar and the load to be connected through the relay KAMB and the relay KBMB. When the first generator G1 operates alone and the first generator controller GCU-A completes closing through KAMB, as the load increases, the second generator G2 in the same group needs to start and be connected to the grid. After the grid connection is completed, the second generator controller GCU-B attracts the relay KBMB. When a fault occurs in the first generator controller GCU-A, the second generator controller GCU-B can complete the closing control during the single operation of the first generator G1 through the relay KBMB. Similarly, when a fault occurs in the second generator controller GCU-B, the first generator controller GCU-A can complete the closing control during the single operation of the second generator G2 through the relay KAMB, thereby ensuring that the circuit between the busbar and the load is connected and preventing the load from stopping working.

[0088] Step S4038: Perform parallel operation control on the target generator and the current generator according to the load.

[0089] Specifically, in the embodiments of the present invention, after the parallel operation of two generators in the same set of generator sets is achieved by a normal generator controller, the power of the generators is distributed according to the power demand of the load to achieve parallel operation control. The specific process is a conventional technical means in this field and will not be elaborated here.

[0090] The emergency control method of the generator set controller provided by the present invention is that after the current generator controller determines that the target generator controller fails, the power supply of the target generator controller is cut off, and based on the input of the first current and voltage signal of the target generator and the output of the control signal, the current generator controller accesses the first current and voltage signal, and the parallel operation control of the target generator and the current generator is performed according to the second current and voltage signal and the first current and voltage information of the current generator. By cutting off the power supply, analog signal input and control signal output of the faulty generator controller, the present invention can restart the generator controlled by the faulty generator controller, solve the related faults caused by the faulty generator controller through restart, and perform automatic parallel operation control of all generators by the normal generator controller without manual intervention, improving the reliability of the normal operation of the generator set.

[0091] In this embodiment, an emergency control method of a generator set controller is provided. The same generator set includes at least two generator controllers. The method can be used for any current engine controller in the above engine set. Figure 10 It is a flowchart of the emergency control method of the generator set controller according to the embodiments of the present invention. As Figure 10 shown, the process includes the following steps:

[0092] Step S1001, determine whether the target generator controller fails. The target generator controller is another generator controller in the generator set. For details, please refer to step S401 of the embodiment shown in Figure 4 and will not be elaborated here.

[0093] Step S1002, control the protection device to turn off the preset non-critical load.

[0094] Specifically, in the embodiments of the present invention, as Figure 11As shown, after a certain generator controller in the generator set fails, the internal protection device automatically shuts down non-critical loads in sequence. Non-critical loads are those that do not affect the current working state. For example, when the vehicle is running, loads such as air conditioners and lights belong to non-critical loads. Taking the failure of the first generator controller GCU-A as an example, it is necessary to restart the first generator G1 to achieve the parallel operation control of the first generator G1 and the second generator G2 by the second generator controller GCU-B. Before the restart, the first generator G1 cannot generate the power required by the load, and the second generator G2 needs to share all the loads. Therefore, in order to prevent the second generator G2 from overloading, or causing the corresponding engine to be depressurized and even stall, resulting in unstable power generation frequency and no power generation output, it is necessary to cut off unimportant electrical equipment in a timely manner. In addition, after the parallel operation is completed subsequently, the protection device can also load non-critical loads in sequence to reach the working state before the failure occurs.

[0095] Step S1003, if the target generator controller fails, cut off the power supply of the target generator controller, and the input of the first current and voltage signal based on the target generator and the output of the control signal. For details, please refer to Figure 4 Step S402 of the embodiment shown, which will not be elaborated here.

[0096] Step S1004, connect the first current and voltage signal, and perform parallel operation control on the target generator and the current generator according to the second current and voltage signal of the current generator and the first current and voltage information. For details, please refer to Figure 4 Step S403 of the embodiment shown, which will not be elaborated here.

[0097] The emergency control method of the generator set controller provided by the present invention, after the current generator controller determines that the target generator controller fails, cuts off the power supply of the target generator controller, and the input of the first current and voltage signal based on the target generator and the output of the control signal. The current generator controller connects the first current and voltage signal, and performs parallel operation control on the target generator and the current generator according to the second current and voltage signal of the current generator and the first current and voltage information. By cutting off the power supply, analog signal input and control signal output of the faulty generator controller, the present invention can restart the generator controlled by the faulty generator controller, solve the related faults caused by the faulty generator controller through the restart, and perform automatic parallel operation control of all generators by the normal generator controller without manual intervention, improving the reliability of the normal operation of the generator set.

[0098] In this embodiment, an emergency control device for a generator set controller is further provided. This device is used to implement the above-mentioned embodiments and preferred implementation manners, and those that have been described will not be repeated. As used hereinafter, the term "module" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated.

[0099] This embodiment provides an emergency control device for a generator set controller. The same generator set includes at least two generator controllers. The device is applied to any current generator controller in the generator set, such as Figure 12 shown, and includes:

[0100] A fault determination module 1201, configured to determine whether a target generator controller has a fault, where the target generator controller is another generator controller in the generator set.

[0101] A cut-off control module 1202, configured to cut off the power supply of the target generator controller if the target generator controller has a fault, and based on the input of the first current and voltage signal of the target generator and the output of the control signal.

[0102] A paralleling control module 1203, configured to access the first current and voltage signal, and perform paralleling control on the target generator and the current generator according to the second current and voltage signal of the current generator and the first current and voltage information.

[0103] In some alternative embodiments, the cut-off control module 1202 includes:

[0104] A first cut-off unit, configured to generate a first switch control signal and open the first switch between the target generator and the first circuit breaker according to the first switch control signal.

[0105] A second cut-off unit, configured to cut off the communication between the target generator controller and the target engine controller and the target generator voltage regulator, and control the target engine and the target fuel supply pump corresponding to the target generator controller to stop.

[0106] A third cut-off unit, configured to generate a second switch control signal and open the second switch between the target generator controller and the power supply according to the second switch control signal.

[0107] A fourth cut-off unit, configured to generate a third switch control signal and open the third switch between the target generator controller and the target generator according to the third switch control signal.

[0108] In some alternative embodiments, the cut-off control module 1202 further includes:

[0109] A function determination unit for determining whether to allow the emergency control function. If the emergency control function is allowed.

[0110] In some alternative embodiments, the parallel operation control module 1203 includes:

[0111] A first restart unit for generating a fourth switch control signal and opening a fourth switch between the current generator controller and the target generator according to the fourth switch control signal to access a first current and voltage signal.

[0112] A second restart unit for generating a fifth switch control signal and closing a fifth switch between the target engine and the DC power supply according to the fifth switch control signal to start the target engine.

[0113] A third restart unit for generating a sixth switch control signal and closing a sixth switch between the target fuel pump and the DC power supply according to the sixth switch control signal to start the target fuel pump;

[0114] A condition judgment unit for determining whether a preset parallel operation condition is satisfied according to the first current and voltage signal and the second current and voltage signal.

[0115] A fourth restart unit for generating a seventh switch control signal and closing a seventh switch between the target generator and the first circuit breaker according to the seventh switch control signal if the preset parallel operation condition is satisfied.

[0116] A fifth restart unit for generating an eighth switch signal and closing an eighth switch between the target generator and the busbar corresponding to the current control engine and the load.

[0117] A parallel operation control unit for performing parallel operation control on the target generator and the current generator according to the load.

[0118] In some alternative embodiments, the parallel operation control module 1203 further includes:

[0119] A speed regulation unit for regulating the speed of the target engine until a preset operating speed is reached.

[0120] A voltage regulation unit for regulating the voltage regulator plate of the target generator until a preset operating voltage is reached.

[0121] In some alternative embodiments, the device further includes:

[0122] A load shutdown module for controlling the protection device to shut down preset non-critical loads.

[0123] The further function descriptions of the above-mentioned various modules and units are the same as those in the corresponding above-mentioned embodiments and will not be elaborated here.

[0124] The emergency control device of the generator set controller in this embodiment is presented in the form of a functional unit. Here, the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and a memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0125] An embodiment of the present invention further provides a computer device having the emergency control device of the generator set controller as described above. Figure 12 shown.

[0126] Please refer to Figure 13 , Figure 13 which is a schematic structural diagram of a computer device provided by an alternative embodiment of the present invention. As Figure 13 shown, the computer device includes: one or more processors 10, a memory 20, and an interface for connecting each component, including a high-speed interface and a low-speed interface. Each component communicates with each other using different buses and can be installed on a common motherboard or installed in other ways as needed. The processor can process instructions executed within the computer device, including instructions stored in the memory or on the memory to display graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In some alternative embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a set of blade servers, or a multi-processor system). Figure 13 In

[0127] the example of one processor 10 is taken.

[0128] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0129] The memory 20 may include a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function; the data storage area can store data created according to the use of the computer device, etc. In addition, the memory 20 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some alternative embodiments, the memory 20 may optionally include a memory remotely provided with respect to the processor 10, and these remote memories can be connected to the computer device through a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0130] The memory 20 may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, a hard disk, or a solid-state drive; the memory 20 may further include a combination of the above types of memory.

[0131] The computer device further includes a communication interface 30 for the computer device to communicate with other devices or a communication network.

[0132] The embodiments of the present invention further provide a computer-readable storage medium. The methods according to the embodiments of the present invention can be implemented in hardware, firmware, or be implemented as computer code that can be recorded on a storage medium, or be implemented as computer code originally stored in a remote storage medium or a non-transitory machine-readable storage medium and to be downloaded through a network and stored in a local storage medium, so that the methods described herein can be stored in such software processes on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory, a random access memory, a flash memory, a hard disk, or a solid-state drive, etc.; further, the storage medium may also include a combination of the above types of memory. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code, and when the software or computer code is accessed and executed by the computer, the processor, or the hardware, the methods shown in the above embodiments are implemented.

[0133] A part of the present invention can be applied as a computer program product, such as computer program instructions, which, when executed by a computer, can invoke or provide the methods and / or technical solutions according to the present invention through the operations of the computer. Those skilled in the art should understand that the forms in which computer program instructions exist in a computer-readable medium include but are not limited to source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include but are not limited to: the computer directly executes the instructions, or the computer compiles the instructions and then executes the corresponding compiled program, or the computer reads and executes the instructions, or the computer reads and installs the instructions and then executes the corresponding installed program. Herein, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to the computer.

[0134] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An emergency control method for a generator set controller, characterized in that, The same generator set includes at least two generator controllers, and the method is applied to any current generator controller in the generator set, including: Determine whether the target generator controller fails, where the target generator controller is another generator controller in the generator set; If the target generator controller fails, cut off the power supply of the target generator controller, and input based on the first current and voltage signal of the target generator and output the control signal; Connect the first current and voltage signal, and perform parallel operation control on the target generator and the current generator according to the second current and voltage signal of the current generator and the first current and voltage information.

2. The method according to claim 1, characterized in that The cutting off the power supply of the target generator controller, and input based on the first current and voltage signal of the target generator and output the control signal includes: Generate a first switch control signal, and open the first switch between the target generator and the first circuit breaker according to the first switch control signal; Cut off the communication between the target generator controller and the target engine controller and the target generator voltage regulator, and control the target engine and the target fuel supply pump corresponding to the target generator controller to stop; Generate a second switch control signal, and open the second switch between the target generator controller and the power supply according to the second switch control signal; Generate a third switch control signal, and open the third switch between the target generator controller and the target generator according to the third switch control signal.

3. The method according to claim 2, wherein After controlling the target engine and the target fuel supply pump corresponding to the target generator controller to stop, it further includes: Determine whether the emergency control function is allowed. If the emergency control function is allowed, continue to generate the second switch control signal, and open the second switch between the target generator controller and the power supply according to the second switch control signal.

4. The method according to claim 2, wherein The connecting the first current and voltage signal, and performing parallel operation control on the target generator and the current generator according to the second current and voltage signal of the current generator and the first current and voltage information includes: Generate a fourth switch control signal, and open the fourth switch between the current generator controller and the target generator according to the fourth switch control signal to connect the first current and voltage signal; Generate a fifth switch control signal, and close the fifth switch between the target engine and the DC power supply according to the fifth switch control signal to start the target engine; Generate a sixth switch control signal, and close the sixth switch between the target fuel supply pump and the DC power supply according to the sixth switch control signal to start the target fuel supply pump; Determine whether the preset parallel operation condition is satisfied according to the first current and voltage signal and the second current and voltage signal; If the preset parallel operation condition is satisfied, generate a seventh switch control signal, and close the seventh switch between the target generator and the first circuit breaker according to the seventh switch control signal; Generate an eighth switch signal, and close the eighth switch between the busbar corresponding to the target generator and the current control engine and the load according to the eighth switch signal; Perform parallel operation control on the target generator and the current generator according to the load.

5. The method according to claim 4, characterized in that Before determining whether the preset parallel operation condition is satisfied according to the first current-voltage signal and the second current-voltage signal, it further includes: Adjust the speed of the target engine until the preset operating speed is reached; Adjust the voltage of the voltage regulator board of the target generator until the preset operating voltage is reached.

6. The method according to claim 1, wherein After determining that the target generator controller fails, it further includes: controlling the protection device to turn off the preset non-critical load.

7. An emergency control device for a generator set controller, characterized in that The same generator set includes at least two generator controllers, and the device is applied to any current generator controller in the generator set, and includes: A fault determination module for determining whether the target generator controller fails, where the target generator controller is another generator controller in the generator set; A cut-off control module for cutting off the power supply of the target generator controller and the input of the first current-voltage signal and the output of the control signal of the target generator if the target generator controller fails; A parallel operation control module for accessing the first current-voltage signal and performing parallel operation control on the target generator and the current generator according to the second current-voltage signal of the current generator and the first current-voltage information.

8. A computer device, characterized in that, It includes: A memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to execute the emergency control method of the generator set controller according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, Computer instructions are stored on the computer-readable storage medium, and the computer instructions are used to cause the computer to execute the emergency control method of the generator set controller according to any one of claims 1 to 6.

10. A computer program product, characterized in that, It includes computer instructions, and the computer instructions are used to cause the computer to execute the emergency control method of the generator set controller according to any one of claims 1 to 6.

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