A diesel generator starting method and device, electronic equipment and storage medium

Abstract

This invention discloses a diesel generator starting method, apparatus, electronic device, and storage medium, relating to the field of PLC control technology. The diesel generator starting method of this invention includes: acquiring the power supply status of the power grid system to the user end; acquiring the operating status of the low-voltage side circuit; outputting a diesel generator starting signal according to the operating status of the low-voltage side circuit; and starting the diesel generator according to the power supply status and the diesel generator starting signal to obtain the energy required by the user end. This method can improve the power supply stability of the power grid system to the user end by starting the diesel generator to supply power to the undervoltage line when a power supply anomaly occurs in the power grid system.

Description

Technical Field

[0001] This invention relates to the field of PLC control technology, and in particular to a diesel generator starting method, device, electronic equipment, and storage medium. Background Technology

[0002] Currently, power grid systems typically have two medium-voltage mains power supplies to users. If one medium-voltage mains power supply fails, the other will simultaneously supply power to both loads. However, when the higher-power medium-voltage mains power supply experiences an anomaly and stops supplying power, the lower-power medium-voltage mains power supply may be unable to power both loads simultaneously, affecting power supply stability. Therefore, providing a diesel generator starting method to improve the power supply stability of the power grid system has become an urgent problem to be solved. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a diesel generator starting method that can improve the power supply stability of the power grid system.

[0004] The present invention also proposes a diesel generator starting device having the above-described diesel generator starting method.

[0005] The present invention also proposes an electronic device having the above-described diesel generator starting method.

[0006] The present invention also proposes a storage medium.

[0007] A diesel generator starting method according to a first aspect of the present invention includes:

[0008] Obtain the power supply status of the power grid system to the user end;

[0009] Obtain the operating status of the low-voltage side circuit;

[0010] Based on the operating state of the low-voltage side circuit, a diesel generator start signal is output;

[0011] The diesel generator is started according to the power supply status and the diesel generator start signal to obtain the energy required by the user.

[0012] The diesel generator starting method according to embodiments of the present invention has at least the following beneficial effects: This diesel generator starting method obtains the power supply status of the power grid system to the user end; obtains the operating status of the low-voltage side circuit; outputs a diesel generator starting signal according to the operating status of the low-voltage side circuit; and starts the diesel generator according to the power supply status and the diesel generator starting signal to obtain the energy required by the user end; This method can improve the power supply stability of the power grid system to the user end by starting the diesel generator to supply power to the undervoltage line when the power supply system experiences a power supply anomaly.

[0013] According to some embodiments of the present invention, the low-voltage side circuit includes a first low-voltage incoming cabinet, a second low-voltage incoming cabinet, and a bus tie low-voltage incoming cabinet. The operating states of the first low-voltage incoming cabinet, the second low-voltage incoming cabinet, and the bus tie low-voltage incoming cabinet include automatic transfer and automatic reset, automatic transfer and manual reset, and automatic state. The step of outputting a diesel generator start signal according to the operating state of the low-voltage side circuit includes:

[0014] If the first low-voltage incoming line cabinet is in automatic transfer and automatic reset state, the second low-voltage incoming line cabinet is in automatic state, the bus tie low-voltage incoming line cabinet is in automatic state, if the circuit of the first low-voltage incoming line cabinet is in energized state, and the circuit of the second low-voltage incoming line cabinet is in de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal.

[0015] If the first low-voltage incoming line cabinet is in automatic transfer and automatic reset mode, the second low-voltage incoming line cabinet is in automatic mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, and if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

[0016] According to some embodiments of the present invention, the step of outputting a diesel generator start signal based on the operating state of the low-voltage side circuit includes:

[0017] If the first low-voltage incoming line cabinet is in automatic mode, the second low-voltage incoming line cabinet is in automatic switching and automatic recovery mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is in a de-energized state and the circuit of the second low-voltage incoming line cabinet is in a energized state, then the low-voltage side circuit outputs the first diesel generator start signal.

[0018] If the first low-voltage incoming line cabinet is in automatic mode, the second low-voltage incoming line cabinet is in automatic transfer and automatic reset mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, and if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

[0019] According to some embodiments of the present invention, the step of outputting a diesel generator start signal based on the operating state of the low-voltage side circuit includes:

[0020] If the first low-voltage incoming line cabinet is in automatic transfer mode, the second low-voltage incoming line cabinet is in automatic mode, the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is energized, and the circuit of the second low-voltage incoming line cabinet is de-energized, then the low-voltage side circuit outputs the first diesel generator start signal.

[0021] If the first low-voltage incoming line cabinet is in automatic transfer mode, the second low-voltage incoming line cabinet is in automatic mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, and if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

[0022] According to some embodiments of the present invention, the step of outputting a diesel generator start signal based on the operating state of the low-voltage side circuit includes:

[0023] If the first low-voltage incoming line cabinet is in automatic mode, the second low-voltage incoming line cabinet is in automatic-to-manual switching mode, the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is in a de-energized state, and the circuit of the second low-voltage incoming line cabinet is in a energized state, then the low-voltage side circuit outputs the first diesel generator start signal.

[0024] If the first low-voltage incoming line cabinet is in automatic mode, the second low-voltage incoming line cabinet is in automatic-to-manual switching mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, and if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

[0025] According to some embodiments of the present invention, the step of outputting a diesel generator start signal based on the operating state of the low-voltage side circuit includes:

[0026] If the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in automatic mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is in a powered-on state and the circuit of the second low-voltage incoming line cabinet is in a de-powered state, then the low-voltage side circuit outputs the first diesel generator start signal.

[0027] If the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in automatic mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is in a de-energized state and the circuit of the second low-voltage incoming line cabinet is in a energized state, then the low-voltage side circuit outputs the second diesel generator start signal.

[0028] If the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in automatic mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, and if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

[0029] According to some embodiments of the present invention, starting the diesel generator based on the power supply status and the diesel generator start signal includes:

[0030] Obtain power supply anomaly signals based on the power supply status of the power grid system to the user end;

[0031] The diesel generator is started according to the power supply abnormality signal and the diesel generator start signal.

[0032] According to a second aspect of the present invention, a diesel generator starting device includes:

[0033] The first acquisition module is used to acquire the power supply status of the power grid system to the user end;

[0034] The second acquisition module is used to acquire the operating status of the low-voltage side circuit.

[0035] The output module is used to output a diesel generator start signal according to the operating state of the low-voltage side circuit;

[0036] The starting module is used to start the diesel generator according to the power supply status and the diesel generator start signal, so as to obtain the energy required by the user.

[0037] The diesel generator starting device according to an embodiment of the present invention has at least the following beneficial effects: the diesel generator starting device acquires the power supply status of the power grid system to the user end through a first acquisition module; the second acquisition module acquires the operating status of the low-voltage side circuit; the output module outputs a diesel generator starting signal according to the operating status of the low-voltage side circuit; the starting module starts the diesel generator according to the power supply status and the diesel generator starting signal to obtain the energy required by the user end; this device can improve the power supply stability of the power grid system to the user end by starting the diesel generator to supply power to the undervoltage line when the power grid system experiences a power supply anomaly.

[0038] An electronic device according to a third aspect of the present invention includes a memory, a processor, and a computer program on the memory and executable on the processor, wherein the processor executes the program to implement the diesel generator starting method of the first aspect of the present invention described above.

[0039] The electronic device according to embodiments of the present invention has at least the following beneficial effects: This electronic device employs the aforementioned diesel generator starting method to acquire the power supply status of the power grid system to the user end; acquire the operating status of the low-voltage side circuit; output a diesel generator starting signal based on the operating status of the low-voltage side circuit; and start the diesel generator according to the power supply status and the diesel generator starting signal to obtain the energy required by the user end. This enables the power supply stability of the power grid system to the user end to be improved when a power supply anomaly occurs in the power grid system, by starting the diesel generator to supply power to the undervoltage line.

[0040] According to a fourth aspect of the present invention, the storage medium is a computer-readable storage medium storing computer-executable instructions for executing the diesel generator starting method of the first aspect of the present invention.

[0041] The storage medium according to embodiments of the present invention has at least the following beneficial effects: the storage medium stores computer-executable instructions, which, by employing the above-described diesel generator starting method, acquire the power supply status of the power grid system to the user end; acquire the operating status of the low-voltage side circuit; output a diesel generator starting signal according to the operating status of the low-voltage side circuit; and start the diesel generator according to the power supply status and the diesel generator starting signal to obtain the energy required by the user end; thus, when a power supply anomaly occurs in the power grid system, power can be supplied to the undervoltage line by starting the diesel generator, thereby improving the power supply stability of the power grid system to the user end.

[0042] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0044] Figure 1 This is a flowchart of a diesel generator starting method according to an embodiment of the present invention;

[0045] Figure 2 yes Figure 1 Flowchart of step S103;

[0046] Figure 3 yes Figure 1 Another flowchart of step S103;

[0047] Figure 4 yes Figure 1 Another flowchart of step S103;

[0048] Figure 5 yes Figure 1 Another flowchart of step S103;

[0049] Figure 6 yes Figure 1 Another flowchart of step S103;

[0050] Figure 7 yes Figure 1 Flowchart of step S104;

[0051] Figure 8 This is a schematic diagram of the structure of a diesel generator starting device according to another embodiment of the present invention.

[0052] Reference numerals: 801, First acquisition module; 802, Second acquisition module; 803, Output module; 804, Startup module. Detailed Implementation

[0053] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0054] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0055] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0056] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0057] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] Firstly, referring to Figure 1 The diesel generator starting method of this invention includes:

[0059] S101, Obtain the power supply status of the power grid system to the user end;

[0060] S102, Obtain the operating status of the low-voltage side circuit;

[0061] S103 outputs a diesel generator start signal based on the operating status of the low-voltage side circuit;

[0062] S104 starts the diesel generator according to the power supply status and the diesel generator start signal to obtain the energy required by the user.

[0063] When starting the diesel generator, first obtain the power supply status of the power grid system to the user end. It should be noted that the power grid system has two medium-voltage mains power incoming lines with different power, and the medium-voltage mains power incoming lines are equipped with medium-voltage incoming line cabinet instruments. If the medium-voltage mains power line loses power, the medium-voltage incoming line cabinet instrument of the corresponding line will display a medium-voltage no-pressure signal. Then, the operating status of the low-voltage side circuit is obtained. The medium-voltage mains power enters the low-voltage side circuit after being transformed. In some specific embodiments, the low-voltage side circuit includes a first low-voltage incoming cabinet, a second low-voltage incoming cabinet, and a bus tie low-voltage incoming cabinet. The operating status of the first low-voltage incoming cabinet, the second low-voltage incoming cabinet, and the bus tie low-voltage incoming cabinet includes automatic transfer and reset, automatic transfer and manual reset, and automatic status. The automatic transfer and reset state means that the power supply includes a main power supply and a backup power supply. When the main power supply is out of power, the backup power supply will automatically start. When the main power supply is restored, the main power supply will resume power supply. The automatic transfer and manual reset state means that the power supply includes a main power supply and a backup power supply. When the main power supply is out of power, the backup power supply will automatically start. If the main power supply is restored and power supply needs to be resumed, the backup power supply needs to be manually stopped and then manually switched to the main power supply. When the low-voltage incoming cabinet is in automatic status, if the line loses power, the bus tie low-voltage incoming cabinet will be in the open state and send a diesel generator start signal to start the diesel generator. Based on the operating status of the low-voltage side circuit, a diesel generator start signal is output. Then, based on the power supply status and the start signal, the diesel generator is started to obtain the energy required by the user. It should be noted that the diesel generator start-up is controlled by the diesel generator parallel control cabinet. The control cabinet only controls the diesel generator to start when it receives a medium-voltage no-voltage signal from the medium-voltage incoming line instrument and a diesel generator start signal. This method reduces false starts of the diesel generator. This diesel generator starting method can supply power to the de-energized line by starting the diesel generator when the medium-voltage mains power is lost and a single small-capacity mains power supply is insufficient to power two loads. This avoids the overload problem caused by supplying two loads with a small-capacity mains power supply, thereby improving the power supply stability of the power grid system to the user.

[0064] Reference Figure 2 In some embodiments, step S103 includes:

[0065] S201, if the first low-voltage incoming line cabinet is in automatic transfer and automatic reset state, the second low-voltage incoming line cabinet is in automatic state, the bus tie low-voltage incoming line cabinet is in automatic state, if the circuit of the first low-voltage incoming line cabinet is in the energized state, and the circuit of the second low-voltage incoming line cabinet is in the de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal.

[0066] S202, if the first low-voltage incoming line cabinet is in automatic transfer and automatic reset state, the second low-voltage incoming line cabinet is in automatic state, the bus tie low-voltage incoming line cabinet is in automatic state, and if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

[0067] When starting a diesel generator, if the first low-voltage incoming switch is in automatic transfer and reset mode, the second low-voltage incoming switch is in automatic mode, and the bus tie low-voltage incoming switch is in automatic mode, and both medium-voltage mains lines are supplying power normally, then the circuits of both the first and second low-voltage incoming switches will automatically close and be energized, while the bus tie low-voltage incoming switch will be in the open state. If the circuit of the first low-voltage incoming switch is energized, and the circuit of the second low-voltage incoming switch is de-energized, then the second low-voltage incoming switch will automatically open, while the bus tie low-voltage incoming switch will remain in the open state. Simultaneously, a start signal for the first diesel generator will be output. It should be noted that the start signal for the first diesel generator corresponds to the power demand of the de-energized line. The diesel generator parallel control cabinet will start the corresponding number of diesel generators according to the power demand. For example, if the power demand corresponding to the start signal of the first diesel generator is 1000KW, and each diesel generator can provide 2000KW of power, then the diesel generator parallel control cabinet will control the start of one diesel generator. If the circuit of the first low-voltage incoming switchgear is de-energized while the circuit of the second low-voltage incoming switchgear is energized, the first low-voltage incoming switchgear will automatically trip, and the bus tie low-voltage incoming switchgear will automatically close, supplying power to the de-energized line through the second low-voltage incoming switchgear line. It should be noted that the second medium-voltage mains line here has a higher power supply efficiency, capable of supplying power to both loads at the user end. If both the circuits of the first and second low-voltage incoming switchgear are de-energized, the first, second, and bus tie low-voltage incoming switchgears will automatically trip, simultaneously outputting a first diesel generator start signal and a second diesel generator start signal. It should be noted that the first diesel generator start signal corresponds to the power demand of the first medium-voltage mains line de-energized, and the second diesel generator start signal corresponds to the power demand of the second medium-voltage mains line de-energized. The diesel generators are then paralleled, starting the appropriate number of generators based on these two power demands to meet the user's power needs.

[0068] Reference Figure 3 In some embodiments, step S103 includes:

[0069] S301, if the first low-voltage incoming line cabinet is in automatic mode, the second low-voltage incoming line cabinet is in automatic transfer and automatic reset mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is in a de-energized state and the circuit of the second low-voltage incoming line cabinet is in an energized state, then the low-voltage side circuit outputs the first diesel generator start signal.

[0070] S302, if the first low-voltage incoming line cabinet is in automatic mode, the second low-voltage incoming line cabinet is in automatic transfer and automatic reset mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

[0071] When starting the diesel generator, if the first low-voltage incoming switch is in automatic mode, the second low-voltage incoming switch is in automatic transfer and reset mode, and the bus tie low-voltage incoming switch is in automatic mode: If the first low-voltage incoming switch is energized and the second low-voltage incoming switch is de-energized, the second low-voltage incoming switch will automatically trip, and the bus tie low-voltage incoming switch will automatically close, supplying power to the de-energized line through the first low-voltage incoming switch line. It should be noted that the first medium-voltage mains line here has a high power supply efficiency, capable of supplying power to both loads at the user end. If the first low-voltage incoming switch is de-energized and the second low-voltage incoming switch is energized, the first low-voltage incoming switch will automatically trip, and the bus tie low-voltage incoming switch will be in the tripped state, simultaneously outputting a start signal for the first diesel generator. If both the first and second low-voltage incoming switches are de-energized, the first, second, and bus tie low-voltage incoming switches will automatically trip, simultaneously outputting start signals for both the first and second diesel generators, supplying power through the diesel engine to meet the user's power needs.

[0072] Reference Figure 4 In some embodiments, step S103 includes:

[0073] S401, if the first low-voltage incoming line cabinet is in automatic transfer mode, the second low-voltage incoming line cabinet is in automatic mode, the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is energized and the circuit of the second low-voltage incoming line cabinet is de-energized, then the low-voltage side circuit outputs the first diesel generator start signal.

[0074] S402, if the first low-voltage incoming line cabinet is in automatic transfer mode, the second low-voltage incoming line cabinet is in automatic mode, the bus tie low-voltage incoming line cabinet is in automatic mode, and the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

[0075] When starting the diesel generator, if the first low-voltage incoming switch is in automatic / manual reset mode, the second low-voltage incoming switch is in automatic mode, and the bus tie low-voltage incoming switch is in automatic mode, and both the first and second low-voltage incoming switches are energized, the bus tie low-voltage incoming switch is in open mode. If the first low-voltage incoming switch is energized and the second low-voltage incoming switch is de-energized, the second low-voltage incoming switch automatically opens, while the bus tie low-voltage incoming switch remains open, and simultaneously outputs a start signal for the first diesel generator. If the first low-voltage incoming switch is de-energized and the second low-voltage incoming switch is energized, the first low-voltage incoming switch automatically opens, and the bus tie low-voltage incoming switch automatically closes, supplying power to the de-energized line through the second low-voltage incoming switch line. It should be noted that the second medium-voltage mains line here has a higher power supply efficiency, capable of supplying power to both loads at the user end. When the first medium-voltage mains power is restored, manual operation is required to open the bus tie low-voltage incoming switch before the first low-voltage incoming switch can be closed. If both the first low-voltage incoming switchgear and the second low-voltage incoming switchgear are in a de-energized state, the first low-voltage incoming switchgear, the second low-voltage incoming switchgear and the bus tie low-voltage incoming switchgear will automatically trip, and at the same time output the first diesel generator start signal and the second diesel generator start signal, thereby meeting the power demand of the user.

[0076] Reference Figure 5 In some embodiments, step S103 includes:

[0077] S501, if the first low-voltage incoming line cabinet is in automatic mode, the second low-voltage incoming line cabinet is in automatic-to-manual mode, the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is in de-energized mode, and the circuit of the second low-voltage incoming line cabinet is in energized mode, then the low-voltage side circuit outputs the first diesel generator start signal.

[0078] S502, if the first low-voltage incoming line cabinet is in automatic mode, the second low-voltage incoming line cabinet is in automatic-to-manual switching mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

[0079] When starting the diesel generator, if the first low-voltage incoming switch is in automatic mode, the second low-voltage incoming switch is in automatic-to-manual mode, and the bus tie low-voltage incoming switch is in automatic mode, and both the first and second low-voltage incoming switches are energized, then the bus tie low-voltage incoming switch is in the open state. If the first low-voltage incoming switch is energized and the second low-voltage incoming switch is de-energized, the second low-voltage incoming switch will automatically open, and the bus tie low-voltage incoming switch will automatically close, supplying power to the de-energized line through the first low-voltage incoming switch line. It should be noted that the first medium-voltage mains line here has a high power supply efficiency, capable of supplying power to both loads at the user end. When the second medium-voltage mains line is restored, manual operation is required to open the bus tie low-voltage incoming switch before the second low-voltage incoming switch can be closed. If the first low-voltage incoming switch is de-energized and the second low-voltage incoming switch is energized, the first low-voltage incoming switch will automatically open, the bus tie low-voltage incoming switch will remain open, and a start signal for the first diesel generator will be output. If both the first and second low-voltage incoming line cabinets lose power, the first, second, and bus tie low-voltage incoming line cabinets will automatically trip, and simultaneously output the first and second diesel generator start signals to meet the power demand of the user.

[0080] Reference Figure 6 In some embodiments, step S103 includes:

[0081] S601, if the first low-voltage incoming cabinet and the second low-voltage incoming cabinet are in automatic mode, the bus tie low-voltage incoming cabinet is in automatic mode, if the circuit of the first low-voltage incoming cabinet is in energized mode, and the circuit of the second low-voltage incoming cabinet is in de-energized mode, then the low-voltage side circuit outputs the first diesel generator start signal.

[0082] S602, if the first low-voltage incoming cabinet and the second low-voltage incoming cabinet are in automatic mode, the bus tie low-voltage incoming cabinet is in automatic mode, if the circuit of the first low-voltage incoming cabinet is in a de-energized state, and the circuit of the second low-voltage incoming cabinet is in a energized state, then the low-voltage side circuit outputs the second diesel generator start signal.

[0083] S603, if the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in automatic mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, and if the circuit of the first low-voltage incoming line cabinet and the circuit of the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

[0084] When starting the diesel generator, if both the first and second low-voltage incoming line cabinets are in automatic mode, and the bus tie low-voltage incoming line cabinet is also in automatic mode, and if both the first and second low-voltage incoming line cabinets are energized, the bus tie low-voltage incoming line cabinet will be in the open state. If the first low-voltage incoming line cabinet is energized and the second low-voltage incoming line cabinet is de-energized, the second low-voltage incoming line cabinet will automatically open, while the bus tie low-voltage incoming line cabinet will remain in the open state, and simultaneously output a start signal for the first diesel generator. If the first low-voltage incoming line cabinet is de-energized and the second low-voltage incoming line cabinet is energized, the first low-voltage incoming line cabinet will automatically open, while the bus tie low-voltage incoming line cabinet will remain in the open state, and simultaneously output a start signal for the first diesel generator. If both the first and second low-voltage incoming line cabinets are de-energized, then the first, second, and bus tie low-voltage incoming line cabinets will automatically open, and simultaneously output start signals for the first and second diesel generators, thereby meeting the power needs of the user.

[0085] In some other embodiments, the first and second low-voltage incoming line cabinets are in an automatic transfer and reset state, while the bus tie low-voltage incoming line cabinet is in an automatic state. If both the first and second low-voltage incoming line cabinets are energized, the bus tie low-voltage incoming line cabinet is in an open state. If the first low-voltage incoming line cabinet is energized and the second low-voltage incoming line cabinet is de-energized, the bus tie low-voltage incoming line cabinet automatically closes. When the second low-voltage incoming line cabinet is re-energized, the bus tie low-voltage incoming line cabinet automatically opens, and then the second low-voltage incoming line cabinet is in a closed state. If the first low-voltage incoming line cabinet is de-energized and the second low-voltage incoming line cabinet is energized, the bus tie low-voltage incoming line cabinet automatically closes. When the first low-voltage incoming line cabinet is re-energized, the bus tie low-voltage incoming line cabinet automatically opens, and then the first low-voltage incoming line cabinet is in a closed state. If both the first low-voltage incoming switchgear and the second low-voltage incoming switchgear are in a de-energized state, the first low-voltage incoming switchgear, the second low-voltage incoming switchgear and the bus tie low-voltage incoming switchgear will automatically trip, and at the same time output the first diesel generator start signal and the second diesel generator start signal.

[0086] In some other embodiments, the first and second low-voltage incoming line cabinets are in automatic transfer / manual reset mode, while the bus tie low-voltage incoming line cabinet is in automatic mode. If both the first and second low-voltage incoming line cabinets are energized, the bus tie low-voltage incoming line cabinet is in open mode. If the first low-voltage incoming line cabinet is energized and the second low-voltage incoming line cabinet is de-energized, the bus tie low-voltage incoming line cabinet automatically closes. When the second low-voltage incoming line cabinet is re-energized, manual operation is required to open the bus tie low-voltage incoming line cabinet before it automatically closes. If the first low-voltage incoming line cabinet is de-energized and the second low-voltage incoming line cabinet is energized, the bus tie low-voltage incoming line cabinet automatically closes. When the first low-voltage incoming line cabinet is re-energized, manual operation is required to open the bus tie low-voltage incoming line cabinet before it automatically closes. If both the first low-voltage incoming switchgear and the second low-voltage incoming switchgear lose power, the first low-voltage incoming switchgear, the second low-voltage incoming switchgear and the bus tie low-voltage incoming switchgear will automatically trip, and at the same time output the first diesel generator start signal and the second diesel generator start signal.

[0087] In some other embodiments, the first low-voltage incoming switch is in automatic transfer and automatic reset mode, the second low-voltage incoming switch is in automatic transfer and manual reset mode, and the bus tie low-voltage incoming switch is in automatic mode. If both the first and second low-voltage incoming switches are energized, the bus tie low-voltage incoming switch is in open mode. If the first low-voltage incoming switch is energized and the second low-voltage incoming switch is de-energized, the bus tie low-voltage incoming switch automatically closes. When the second low-voltage incoming switch is re-energized, manual operation is required to open the bus tie low-voltage incoming switch, and then the second low-voltage incoming switch automatically closes. If the first low-voltage incoming switch is de-energized and the second low-voltage incoming switch is energized, the bus tie low-voltage incoming switch automatically closes. When the first low-voltage incoming switch is re-energized, the bus tie low-voltage incoming switch automatically opens, and then the first low-voltage incoming switch automatically closes. If both the first low-voltage incoming switchgear and the second low-voltage incoming switchgear lose power, the first low-voltage incoming switchgear, the second low-voltage incoming switchgear and the bus tie low-voltage incoming switchgear will automatically trip, and at the same time output the first diesel generator start signal and the second diesel generator start signal.

[0088] In some other embodiments, the low-voltage side circuit has six incoming lines connected to the bus tie parallel machine main control cabinet. The bus tie parallel machine main control cabinet can output a first diesel generator start signal to a sixth diesel generator start signal. The first diesel generator start signal corresponds to the power requirement of the first incoming line, and the sixth diesel generator start signal corresponds to the power requirement of the sixth incoming line. In some specific embodiments, one diesel generator start signal corresponds to a 1000kW power requirement, and each diesel generator can provide 2000kW of power. When there is one diesel generator start signal, one diesel generator is started; when there are two diesel generator start signals, two diesel generators are started; when there are three diesel generator start signals, three diesel generators are started; when there are four diesel generator start signals, three diesel generators are started; when there are five diesel generator start signals, three diesel generators are started; and when there are six diesel generator start signals, four diesel generators are started. When the mains power is restored, the bus tie-parallel main control cabinet will no longer output a diesel generator start signal. The diesel generator self-starting system will then shut down the corresponding diesel generator. It should be noted that a delay operation is also required to shut down the diesel generator based on the switch status signal of the bus tie-parallel main control cabinet.

[0089] Reference Figure 7 In some embodiments, step S104 includes:

[0090] S701, obtains power supply abnormality signals based on the power supply status of the power grid system to the user end;

[0091] S702, starts the diesel generator based on the power supply abnormality signal and the diesel generator start signal.

[0092] When starting a diesel generator, if the medium-voltage mains power fails, the corresponding medium-voltage line will output a medium-voltage no-voltage signal, i.e., a power supply abnormality signal. At the same time, the low-voltage side circuit will output a diesel generator start signal. The diesel generator parallel control cabinet will only control the start of the diesel generator after receiving the power supply abnormality signal and the diesel generator start signal. In this way, the false start of the diesel generator can be reduced.

[0093] Secondly, referring to Figure 8 The diesel generator starting device of this embodiment includes:

[0094] The first acquisition module 801 is used to acquire the power supply status of the power grid system to the user end;

[0095] The second acquisition module 802 is used to acquire the operating status of the low-voltage side circuit;

[0096] Output module 803 is used to output a diesel generator start signal according to the operating status of the low-voltage side circuit;

[0097] The starting module 804 is used to start the diesel generator according to the power supply status and the diesel generator start signal, so as to obtain the energy required by the user.

[0098] When starting the diesel generator, the first acquisition module 801 acquires the power supply status of the power grid system to the user end; the second acquisition module 802 acquires the operating status of the low-voltage side circuit; then, the output module 803 outputs a diesel generator start signal based on the operating status of the low-voltage side circuit; the start module 804 starts the diesel generator based on the power supply status and the diesel generator start signal to obtain the energy required by the user end. This device can improve the power supply stability of the power grid system to the user end by starting the diesel generator to supply power to the undervoltage line when the power grid system experiences a power supply anomaly.

[0099] Thirdly, the electronic device of the present invention includes at least one processor and a memory communicatively connected to the at least one processor; wherein the memory stores instructions which are executed by the at least one processor to cause the at least one processor to implement the diesel generator starting method as described in the first aspect embodiment when executing the instructions.

[0100] This electronic device employs the aforementioned diesel generator starting method, which obtains the power supply status of the power grid system to the user end; obtains the operating status of the low-voltage side circuit; outputs a diesel generator starting signal based on the operating status of the low-voltage side circuit; and starts the diesel generator based on the power supply status and the diesel generator starting signal to obtain the energy required by the user end. This method can improve the power supply stability of the power grid system to the user end by starting the diesel generator to supply power to the undervoltage line when the power grid system experiences a power supply anomaly.

[0101] Fourthly, the present invention also proposes a storage medium, which is a computer-readable storage medium for computer-readable storage. The computer-readable storage medium stores computer-executable instructions for causing a computer to execute the diesel generator starting method of the first aspect embodiment, which obtains the power supply status of the power grid system to the user end; obtains the operating status of the low-voltage side circuit; outputs a diesel generator starting signal according to the operating status of the low-voltage side circuit; and starts the diesel generator according to the power supply status and the diesel generator starting signal to obtain the energy required by the user end. This method can improve the power supply stability of the power grid system to the user end by starting the diesel generator to supply power to the undervoltage line when the power grid system experiences a power supply anomaly.

[0102] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

Claims

1. A method of starting a diesel generator, characterized by, include: Obtain the power supply status of the power grid system to the user end; The operating status of the low-voltage side circuit is obtained. The low-voltage side circuit includes a first low-voltage incoming cabinet, a second low-voltage incoming cabinet, and a bus tie low-voltage incoming cabinet. The operating status of the first low-voltage incoming cabinet, the second low-voltage incoming cabinet, and the bus tie low-voltage incoming cabinet includes automatic transfer and automatic reset, automatic transfer and manual reset, and automatic status. Based on the operating state of the low-voltage side circuit, a diesel generator start signal is output, including: if the first low-voltage incoming cabinet is in automatic transfer and reset mode, the second low-voltage incoming cabinet is in automatic mode, the bus tie low-voltage incoming cabinet is in automatic mode, and the circuit of the first low-voltage incoming cabinet is energized while the circuit of the second low-voltage incoming cabinet is de-energized, then the low-voltage side circuit outputs a first diesel generator start signal; if the first low-voltage incoming cabinet is in automatic transfer and reset mode, the second low-voltage incoming cabinet is in automatic mode, the bus tie low-voltage incoming cabinet is in automatic mode, and the circuits of both the first and second low-voltage incoming cabinets are de-energized, then the low-voltage side circuit outputs a first diesel generator start signal and a second diesel generator start signal. The diesel generator is started according to the power supply status and the diesel generator start signal to obtain the energy required by the user.

2. A method of starting a diesel engine as claimed in claim 1, characterised in that, The step of outputting a diesel generator start signal based on the operating state of the low-voltage side circuit includes: If the first low-voltage incoming line cabinet is in automatic mode, the second low-voltage incoming line cabinet is in automatic switching and automatic recovery mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is in a de-energized state and the circuit of the second low-voltage incoming line cabinet is in a energized state, then the low-voltage side circuit outputs the first diesel generator start signal. If the first low-voltage incoming line cabinet is in automatic mode, the second low-voltage incoming line cabinet is in automatic transfer and automatic reset mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, and if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

3. A method of starting a diesel engine as defined in claim 2, characterized in that The step of outputting a diesel generator start signal based on the operating state of the low-voltage side circuit includes: If the first low-voltage incoming line cabinet is in automatic transfer mode, the second low-voltage incoming line cabinet is in automatic mode, the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is energized, and the circuit of the second low-voltage incoming line cabinet is de-energized, then the low-voltage side circuit outputs the first diesel generator start signal. If the first low-voltage incoming line cabinet is in automatic transfer mode, the second low-voltage incoming line cabinet is in automatic mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, and if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

4. A method of starting a diesel engine as defined in claim 3, characterized in that The step of outputting a diesel generator start signal based on the operating state of the low-voltage side circuit includes: If the first low-voltage incoming line cabinet is in automatic mode, the second low-voltage incoming line cabinet is in automatic-to-manual switching mode, the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is in a de-energized state, and the circuit of the second low-voltage incoming line cabinet is in a energized state, then the low-voltage side circuit outputs the first diesel generator start signal. If the first low-voltage incoming line cabinet is in automatic mode, the second low-voltage incoming line cabinet is in automatic-to-manual switching mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, and if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

5. A diesel generator starting method according to claim 4, characterized in that, The step of outputting a diesel generator start signal based on the operating state of the low-voltage side circuit includes: If the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in automatic mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is in a powered-on state and the circuit of the second low-voltage incoming line cabinet is in a de-powered state, then the low-voltage side circuit outputs the first diesel generator start signal. If the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in automatic mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, if the circuit of the first low-voltage incoming line cabinet is in a de-energized state and the circuit of the second low-voltage incoming line cabinet is in a energized state, then the low-voltage side circuit outputs the second diesel generator start signal. If the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in automatic mode, and the bus tie low-voltage incoming line cabinet is in automatic mode, and if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-energized state, then the low-voltage side circuit outputs the first diesel generator start signal and the second diesel generator start signal.

6. A method of starting a diesel engine as defined in claim 1, wherein Starting the diesel generator according to the power supply status and the diesel generator start signal includes: Obtain power supply anomaly signals based on the power supply status of the power grid system to the user end; The diesel generator is started according to the power supply abnormality signal and the diesel generator start signal.

7. A diesel engine starting apparatus characterized by comprising: include: The first acquisition module is used to acquire the power supply status of the power grid system to the user end; The second acquisition module is used to acquire the operating status of the low-voltage side circuit. The low-voltage side circuit includes a first low-voltage incoming cabinet, a second low-voltage incoming cabinet, and a bus tie low-voltage incoming cabinet. The operating status of the first low-voltage incoming cabinet, the second low-voltage incoming cabinet, and the bus tie low-voltage incoming cabinet includes automatic transfer and automatic reset status, automatic transfer and manual reset status, and automatic status. The output module is used to output a diesel generator start signal according to the operating state of the low-voltage side circuit, including: if the first low-voltage incoming line cabinet is in automatic transfer and automatic reset state, the second low-voltage incoming line cabinet is in automatic state, the bus tie low-voltage incoming line cabinet is in automatic state, if the circuit of the first low-voltage incoming line cabinet is in a powered state, and the circuit of the second low-voltage incoming line cabinet is in a de-powered state, then the low-voltage side circuit outputs a first diesel generator start signal; if the first low-voltage incoming line cabinet is in automatic transfer and automatic reset state, the second low-voltage incoming line cabinet is in automatic state, the bus tie low-voltage incoming line cabinet is in automatic state, and if the circuits of the first low-voltage incoming line cabinet and the second low-voltage incoming line cabinet are in a de-powered state, then the low-voltage side circuit outputs a first diesel generator start signal and a second diesel generator start signal. The starting module is used to start the diesel generator according to the power supply status and the diesel generator start signal, so as to obtain the energy required by the user.

8. An electronic device, including a memory, a processor, and a computer program on the memory and executable on the processor, wherein the processor executes the program to implement a diesel generator starting method as described in any one of claims 1 to 6.

9. A storage medium, the storage medium being a computer-readable storage medium for computer-readable storage, characterized in that, A computer-readable storage medium stores computer-executable instructions for performing a diesel generator starting method according to any one of claims 1 to 6.

Images