AVC system misoperation-preventive locking parameter setting method

Abstract

The invention belongs to the technical field of power systems, and particularly relates to an AVC system anti-misoperation locking parameter setting method. Comprising the following steps: setting AVC system active power upper and lower limit anti-misoperation locking parameters; setting reactive power upper and lower limit anti-misoperation locking parameters of the AVC system; setting AVC system bus voltage upper and lower limit anti-misoperation locking parameters; setting AVC system stator voltage upper and lower limit anti-misoperation locking parameters; setting AVC system stator current upper and lower limit anti-misoperation locking parameters; setting AVC system rotor current upper and lower limit anti-misoperation locking parameters; setting factory voltage upper and lower limit anti-misoperation locking parameters of the AVC system; and setting misoperation-preventive locking parameters of the AVC system PQ curve. According to the invention, the anti-risk capability of the AVC system is improved, operation refusal or maloperation of the AVC system during reactive voltage adjustment is prevented, safe and stable operation of the AVC system is ensured, and the correct operation capability of the AVC system is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of power systems, and particularly relates to a method for setting anti-misoperation locking parameters of an AVC system. Background Art

[0002] With the continuous expansion of the power grid scale and the rapid growth of the installed capacity, the requirements for improving the power grid voltage quality, reducing the system power loss, and enhancing the voltage stability are becoming increasingly strong. The unified automatic voltage control system AVC of the power grid is an effective measure to further improve the power quality of the power grid, operate safely, stably, efficiently and economically, and safeguard the legitimate rights and interests of power enterprises.

[0003] The automatic voltage control system AVC is an important technical means for reactive voltage coordinated control, which plays an active role in maintaining the safe and stable operation of the power system, improving the power grid voltage quality, reducing the power loss, ensuring the safe, economic and high-quality operation of the power grid, reducing the labor intensity of dispatching duty personnel, and reducing the workload of power plant operators for frequently adjusting reactive power. The automatic voltage control system AVC can automatically adjust and control the operating generating units by real-time monitoring the system voltage and the reactive power of the units, perform reactive-voltage optimal closed-loop operation, and achieve qualified system voltage and reasonable distribution of reactive power.

[0004] Nowadays, in the system commissioning and operation and maintenance of the AVCA system, there are problems such as the safety anti-misoperation system not being correctly configured according to the actual needs of the power grid, and being incompatible with the protection scope of substation or power plant network-related relay protection and the requirements of operation regulations, resulting in the automatic voltage control system being prone to misoperation or refusal to operate, and affecting the safe and stable operation of the power grid. Summary of the Invention

[0005] In view of the deficiencies in the above-mentioned prior art, the present invention provides a method for setting anti-misoperation locking parameters of an AVC system. Its purpose is to further improve the power quality of the power grid and achieve the invention purpose of safe, stable, high-quality and economic operation.

[0006] The technical solution adopted by the present invention to achieve the above object is as follows: A method for setting anti-misoperation locking parameters of an AVC system, including: Setting the anti-misoperation locking parameters of the upper and lower limits of the active power of the AVC system; Setting the anti-misoperation locking parameters of the upper and lower limits of the reactive power of the AVC system; Setting the anti-misoperation locking parameters of the upper and lower limits of the bus voltage of the AVC system; Setting the anti-misoperation locking parameters of the upper and lower limits of the stator voltage of the AVC system; Setting the anti-misoperation locking parameters of the upper and lower limits of the stator current of the AVC system; Setting the anti-misoperation locking parameters of the upper and lower limits of the rotor current of the AVC system; Setting of anti-misoperation locking parameters for the upper and lower limits of the auxiliary power voltage of the AVC system; Setting of anti-misoperation locking parameters for the PQ curve of the AVC system.

[0007] Furthermore, for the setting of anti-misoperation locking parameters for the upper and lower limits of the active power of the AVC system, the anti-misoperation locking parameter for the upper limit of the active power of the AVC system is taken as the rated active power of the unit, and the anti-misoperation locking parameter for the lower limit of the active power of the AVC system is taken as the minimum technical output of the unit.

[0008] Furthermore, for the setting of anti-misoperation locking parameters for the upper and lower limits of the reactive power of the AVC system, the anti-misoperation locking parameter for the upper limit of the reactive power of the AVC system is taken as the rated reactive power of the unit, and the anti-misoperation locking parameter for the lower limit of the reactive power of the AVC system is taken as 0 MVar.

[0009] Furthermore, for the setting of anti-misoperation locking parameters for the upper and lower limits of the bus voltage of the AVC system, the upper and lower limits of the voltage dispatching range of the power generation enterprise issued by the dispatching and control center of the affiliated power grid are taken.

[0010] Furthermore, for the setting of anti-misoperation locking parameters for the upper and lower limits of the stator voltage of the AVC system, the anti-misoperation locking parameter for the upper limit of the stator voltage of the AVC system is taken as 90% - 95% of the overvoltage protection setting value of the generator stator voltage, and the anti-misoperation locking parameter for the lower limit of the stator voltage of the AVC system is taken as 90% - 95% of the undervoltage protection setting value of the generator stator voltage.

[0011] Furthermore, for the setting of anti-misoperation locking parameters for the upper and lower limits of the stator current of the AVC system, the anti-misoperation locking parameter for the upper limit of the stator current of the AVC system is taken as the rated stator current of the unit, and the anti-misoperation locking parameter for the lower limit of the stator current of the AVC system is taken as 0 A.

[0012] Furthermore, for the setting of anti-misoperation locking parameters for the upper and lower limits of the rotor current of the AVC system, the anti-misoperation locking parameter for the upper limit of the rotor current of the AVC system is taken as the rated rotor current of the unit, and the anti-misoperation locking parameter for the lower limit of the rotor current of the AVC system is taken as 0 A.

[0013] Furthermore, for the setting of anti-misoperation locking parameters for the upper and lower limits of the auxiliary power voltage of the AVC system, the anti-misoperation locking parameter for the upper limit of the auxiliary power voltage of the AVC system is taken as 90% - 95% of the overvoltage protection setting value of the generator auxiliary power voltage, and the anti-misoperation locking parameter for the lower limit of the auxiliary power voltage of the AVC system is taken as 90% - 95% of the undervoltage protection setting value of the generator auxiliary power voltage.

[0014] Furthermore, for the setting of the anti-misoperation locking parameters of the PQ curve of the AVC system, the PQ parameters of the AVC system are set according to the low-frequency limit setting value of the excitation system given in the generator leading power factor test report. The active power parameter in the PQ curve is consistent with the active power of the low-frequency limit setting value of the excitation system, and the reactive power parameter in the PQ curve is 90%-95% of the reactive power of the low-frequency limit setting value of the excitation system.

[0015] A computer device includes a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor. When the processor executes the computer program, the steps of any one of the described AVC system anti-misoperation locking parameter setting methods are implemented.

[0016] The present invention has the following beneficial effects and advantages: The present invention improves the risk resistance ability of the AVC system, prevents the AVC system from malfunctioning or misoperating when adjusting reactive power and voltage, ensures the safe and stable operation of the AVC system, improves the correct operation ability of the AVC system, facilitates the verification and management of the setting values of the anti-misoperation locking function of the AVC system, and correctly sets the anti-misoperation locking parameters of the AVC system. The AVC system anti-misoperation locking parameter setting method provided by the present invention proposes an AVC system anti-misoperation locking parameter setting method according to generator network-connected protection, excitation system limitation functions, power generation enterprise operation regulations, and power grid operation requirements, provides technical guarantee for the safe and stable operation of the AVC system, further improves the power quality of the power grid, and realizes safe, stable, high-quality and economic operation.

[0017] The present invention proposes AVC system anti-misoperation locking parameter setting methods applicable to the upper and lower limit anti-misoperation locking parameters of the active power of the AVC system, the upper and lower limit anti-misoperation locking parameters of the reactive power of the AVC system, the upper and lower limit anti-misoperation locking parameters of the bus voltage of the AVC system, the upper and lower limit anti-misoperation locking parameters of the stator voltage of the AVC system, the upper and lower limit anti-misoperation locking parameters of the stator current of the AVC system, the upper and lower limit anti-misoperation locking parameters of the rotor current of the AVC system, the upper and lower limit anti-misoperation locking parameters of the auxiliary voltage of the AVC system, the PQ curve parameters of the AVC system, etc., which can realize the correct setting of the AVC system anti-misoperation locking parameters.

[0018] The present invention proposes an automatic setting method for AVC system anti-misoperation locking parameters, which can be widely applied in the work links of provincial electric power research institutes, power supply companies, and power generation enterprises in power secondary system technical supervision, network-connected tests, and AVC system operation and maintenance. Compared with the existing manual calculation method, which has huge calculation amounts and is prone to problems such as information omission or calculation errors, it has technical advantages such as automatic setting calculation of anti-misoperation locking parameters, greatly improved accuracy of calculation results, and reduced workload of personnel. Description of the Drawings

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where: Figure 1 is a flowchart of the method of the present invention; Figure 2 is a schematic diagram of the PQ parameter setting process of the AVC system of the present invention. Detailed implementation manners

[0020] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0022] Next, refer to Figure 1 and Figure 2 to describe the technical solutions of some embodiments of the present invention.

[0023] Embodiment 1

[0024] The present invention provides an embodiment, which is a method for setting anti-misoperation locking parameters of an AVC system. As Figure 1 shown, Figure 1 is a flowchart of the method of the present invention.

[0025] The method of the present invention specifically includes the following contents: Setting the anti-misoperation locking parameters for the upper and lower limits of the active power of the AVC system. Generally, the anti-misoperation locking parameter for the upper limit of the active power of the AVC system can be taken as the rated active power of the unit, and the anti-misoperation locking parameter for the lower limit of the active power of the AVC system can generally be taken as the minimum technical output of the unit.

[0026] Setting the anti-misoperation locking parameters for the upper and lower limits of the reactive power of the AVC system. Generally, the anti-misoperation locking parameter for the upper limit of the reactive power of the AVC system can be taken as the rated reactive power of the unit, and the anti-misoperation locking parameter for the lower limit of the reactive power of the AVC system can generally be taken as 0 MVar.

[0027] Setting the anti-misoperation locking parameters for the upper and lower limits of the bus voltage of the AVC system. Generally, the upper and lower limits of the voltage dispatching range of the power generation enterprise issued by the grid dispatching control center to which it belongs can be taken.

[0028] Setting of anti-maloperation blocking parameters for the upper and lower limits of the stator voltage of the AVC system. Generally, the anti-maloperation blocking parameter for the upper limit of the stator voltage of the AVC system can be taken as 90% - 95% of the overvoltage protection setting value of the generator stator voltage, and the anti-maloperation blocking parameter for the lower limit of the stator voltage of the AVC system can be taken as 90% - 95% of the undervoltage protection setting value of the generator stator voltage.

[0029] Setting of anti-maloperation blocking parameters for the upper and lower limits of the stator current of the AVC system. Generally, the anti-maloperation blocking parameter for the upper limit of the stator current of the AVC system can be taken as the rated stator current of the unit, and the anti-maloperation blocking parameter for the lower limit of the stator current of the AVC system can be taken as 0A.

[0030] Setting of anti-maloperation blocking parameters for the upper and lower limits of the rotor current of the AVC system. Generally, the anti-maloperation blocking parameter for the upper limit of the rotor current of the AVC system can be taken as the rated rotor current of the unit, and the anti-maloperation blocking parameter for the lower limit of the rotor current of the AVC system can be taken as 0A.

[0031] Setting of anti-maloperation blocking parameters for the upper and lower limits of the auxiliary power voltage of the AVC system. Generally, the anti-maloperation blocking parameter for the upper limit of the auxiliary power voltage of the AVC system can be taken as 90% - 95% of the overvoltage protection setting value of the generator auxiliary power voltage, and the anti-maloperation blocking parameter for the lower limit of the auxiliary power voltage of the AVC system can be taken as 90% - 95% of the undervoltage protection setting value of the generator auxiliary power voltage.

[0032] Setting of anti-maloperation blocking parameters for the PQ curve of the AVC system. Generally, the PQ parameters of the AVC system are generally set according to the excitation system low-frequency limit setting value given in the generator leading power factor test report. The active power parameter in the PQ curve is consistent with the active power of the excitation system low-frequency limit setting value, and the reactive power parameter in the PQ curve is 90% - 95% of the reactive power of the excitation system low-frequency limit setting value.

[0033] The setting process of the AVC system PQ parameters is as Figure 2 shown.

[0034] Embodiment 2

[0035] The present invention further provides an embodiment, which is a method for setting anti-maloperation blocking parameters of an AVC system.

[0036] Different from Embodiment 1, for the setting of the anti-maloperation blocking parameters for the upper and lower limits of the stator voltage of the AVC system described in the present invention, the anti-maloperation blocking parameter for the upper limit of the stator voltage of the AVC system is taken as 91% of the overvoltage protection setting value of the generator stator voltage, and the anti-maloperation blocking parameter for the lower limit of the stator voltage of the AVC system is taken as 91% of the undervoltage protection setting value of the generator stator voltage.

[0037] Embodiment 3

[0038] The present invention further provides an embodiment, which is a method for setting anti-maloperation blocking parameters of an AVC system.

[0039] Different from Embodiment 1, for the setting of the anti-maloperation blocking parameters of the upper and lower limits of the stator voltage of the AVC system of the present invention, the anti-maloperation blocking parameter of the upper limit of the stator voltage of the AVC system is taken as 92% of the overvoltage protection setting value of the generator stator voltage, and the anti-maloperation blocking parameter of the lower limit of the stator voltage of the AVC system is taken as 92% of the undervoltage protection setting value of the generator stator voltage.

[0040] Embodiment 4

[0041] The present invention further provides an embodiment, which is a method for setting anti-maloperation blocking parameters of an AVC system.

[0042] Different from Embodiment 1, for the setting of the anti-maloperation blocking parameters of the upper and lower limits of the stator voltage of the AVC system of the present invention, the anti-maloperation blocking parameter of the upper limit of the stator voltage of the AVC system is taken as 93% of the overvoltage protection setting value of the generator stator voltage, and the anti-maloperation blocking parameter of the lower limit of the stator voltage of the AVC system is taken as 93% of the undervoltage protection setting value of the generator stator voltage.

[0043] Embodiment 5

[0044] The present invention further provides an embodiment, which is a method for setting anti-maloperation blocking parameters of an AVC system.

[0045] Different from Embodiment 1, for the setting of the anti-maloperation blocking parameters of the upper and lower limits of the stator voltage of the AVC system of the present invention, the anti-maloperation blocking parameter of the upper limit of the stator voltage of the AVC system is taken as 94% of the overvoltage protection setting value of the generator stator voltage, and the anti-maloperation blocking parameter of the lower limit of the stator voltage of the AVC system is taken as 94% of the undervoltage protection setting value of the generator stator voltage.

[0046] Embodiment 6

[0047] The present invention further provides an embodiment, which is a method for setting anti-maloperation blocking parameters of an AVC system.

[0048] Different from Embodiment 1, for the setting of the anti-maloperation blocking parameters of the upper and lower limits of the auxiliary voltage of the AVC system of the present invention, the anti-maloperation blocking parameter of the upper limit of the auxiliary voltage of the AVC system is generally taken as 91% of the overvoltage protection setting value of the generator auxiliary voltage, and the anti-maloperation blocking parameter of the lower limit of the auxiliary voltage of the AVC system is generally taken as 91% of the undervoltage protection setting value of the generator auxiliary voltage.

[0049] Embodiment 7

[0050] The present invention further provides an embodiment, which is a method for setting anti-maloperation blocking parameters of an AVC system.

[0051] Different from Embodiment 1, for the setting of the anti-misoperation locking parameters of the upper and lower limits of the auxiliary power voltage of the AVC system of the present invention, generally, the anti-misoperation locking parameter of the upper limit of the auxiliary power voltage of the AVC system can be taken as 92% of the overvoltage protection setting value of the generator auxiliary power voltage, and the anti-misoperation locking parameter of the lower limit of the auxiliary power voltage of the AVC system can be taken as 92% of the undervoltage protection setting value of the generator auxiliary power voltage.

[0052] Embodiment 8

[0053] The present invention further provides an embodiment, which is a method for setting anti-misoperation locking parameters of an AVC system.

[0054] Different from Embodiment 1, for the setting of the anti-misoperation locking parameters of the upper and lower limits of the auxiliary power voltage of the AVC system of the present invention, generally, the anti-misoperation locking parameter of the upper limit of the auxiliary power voltage of the AVC system can be taken as 93% of the overvoltage protection setting value of the generator auxiliary power voltage, and the anti-misoperation locking parameter of the lower limit of the auxiliary power voltage of the AVC system can be taken as 93% of the undervoltage protection setting value of the generator auxiliary power voltage.

[0055] Embodiment 9

[0056] The present invention further provides an embodiment, which is a method for setting anti-misoperation locking parameters of an AVC system.

[0057] Different from Embodiment 1, for the setting of the anti-misoperation locking parameters of the upper and lower limits of the auxiliary power voltage of the AVC system of the present invention, generally, the anti-misoperation locking parameter of the upper limit of the auxiliary power voltage of the AVC system can be taken as 94% of the overvoltage protection setting value of the generator auxiliary power voltage, and the anti-misoperation locking parameter of the lower limit of the auxiliary power voltage of the AVC system can be taken as 94% of the undervoltage protection setting value of the generator auxiliary power voltage.

[0058] Embodiment 10

[0059] The present invention further provides an embodiment, which is a method for setting anti-misoperation locking parameters of an AVC system.

[0060] Different from Embodiment 1, for the setting of the anti-misoperation locking parameters of the PQ curve of the AVC system of the present invention, generally, the PQ parameters of the AVC system are set according to the excitation system low-frequency limit setting value given in the generator in-phase test report. The active power parameter in the PQ curve is consistent with the active power of the excitation system low-frequency limit setting value, and the reactive power parameter in the PQ curve is 91% of the reactive power of the excitation system low-frequency limit setting value.

[0061] Embodiment 11

[0062] The present invention further provides an embodiment, which is a method for setting anti-misoperation locking parameters of an AVC system.

[0063] Different from Embodiment 1, for the setting of the anti-misoperation locking parameters of the PQ curve of the AVC system in the present invention, the PQ parameters of the AVC system are generally set according to the low-frequency limit setting value of the excitation system given in the generator phase-advancing test report. The active power parameter in the PQ curve is consistent with the active power of the low-frequency limit setting value of the excitation system, and the reactive power parameter in the PQ curve is 92% of the reactive power of the low-frequency limit setting value of the excitation system.

[0064] Embodiment 12

[0065] The present invention further provides an embodiment, which is a method for setting anti-misoperation locking parameters of an AVC system.

[0066] Different from Embodiment 1, for the setting of the anti-misoperation locking parameters of the PQ curve of the AVC system in the present invention, the PQ parameters of the AVC system are generally set according to the low-frequency limit setting value of the excitation system given in the generator phase-advancing test report. The active power parameter in the PQ curve is consistent with the active power of the low-frequency limit setting value of the excitation system, and the reactive power parameter in the PQ curve is 93% of the reactive power of the low-frequency limit setting value of the excitation system.

[0067] Embodiment 13

[0068] The present invention further provides an embodiment, which is a method for setting anti-misoperation locking parameters of an AVC system.

[0069] Different from Embodiment 1, for the setting of the anti-misoperation locking parameters of the PQ curve of the AVC system in the present invention, the PQ parameters of the AVC system are generally set according to the low-frequency limit setting value of the excitation system given in the generator phase-advancing test report. The active power parameter in the PQ curve is consistent with the active power of the low-frequency limit setting value of the excitation system, and the reactive power parameter in the PQ curve is 94% of the reactive power of the low-frequency limit setting value of the excitation system.

[0070] Embodiment 14

[0071] The present invention further provides an embodiment, which is an anti-misoperation locking parameter setting device for an AVC system, including: A setting module for the anti-misoperation locking parameters of the upper and lower limits of the active power of the AVC system, which is used to determine the anti-misoperation locking parameters of the upper and lower limits of the active power of the AVC system; A setting module for the anti-misoperation locking parameters of the upper and lower limits of the reactive power of the AVC system, which is used to determine the anti-misoperation locking parameter of the upper limit of the reactive power of the AVC system for the rated reactive power of the unit, and to determine that the anti-misoperation locking parameter of the lower limit of the reactive power of the AVC system is 0 MVar; For the setting of the anti-misoperation locking parameters of the upper and lower limits of the bus voltage of the AVC system, generally, the upper and lower limits of the voltage dispatching range of the power generation enterprise issued by the dispatching and control center of the affiliated power grid can be taken.

[0072] The setting module for the upper and lower limit anti-misoperation locking parameters of the stator voltage of the AVC system is used to determine that the upper limit anti-misoperation locking parameter of the stator voltage of the AVC system takes 90%-95% of the overvoltage protection setting value of the generator stator voltage, and the lower limit anti-misoperation locking parameter of the stator voltage of the AVC system takes 90%-95% of the undervoltage protection setting value of the generator stator voltage.

[0073] The setting module for the upper and lower limit anti-misoperation locking parameters of the stator current of the AVC system is used to determine that the upper limit anti-misoperation locking parameter of the stator current of the AVC system takes the rated stator current of the unit, and the lower limit anti-misoperation locking parameter of the stator current of the AVC system takes 0A; The setting module for the upper and lower limit anti-misoperation locking parameters of the rotor current of the AVC system is used to determine that the upper limit anti-misoperation locking parameter of the rotor current of the AVC system takes the rated rotor current of the unit, and the lower limit anti-misoperation locking parameter of the rotor current of the AVC system takes 0A; The setting module for the upper and lower limit anti-misoperation locking parameters of the auxiliary voltage of the AVC system is used to determine that the upper limit anti-misoperation locking parameter of the auxiliary voltage of the AVC system takes 90%-95% of the overvoltage protection setting value of the generator auxiliary voltage, and the lower limit anti-misoperation locking parameter of the auxiliary voltage of the AVC system takes 90%-95% of the undervoltage protection setting value of the generator auxiliary voltage.

[0074] The setting module for the anti-misoperation locking parameters of the PQ curve of the AVC system is used to determine that the PQ parameters of the AVC system are generally set according to the low-frequency limit setting value of the excitation system given in the generator in-phase test report. The active power parameter in the PQ curve is consistent with the active power of the low-frequency limit setting value of the excitation system, and the reactive power parameter in the PQ curve takes 90%-95% of the reactive power of the low-frequency limit setting value of the excitation system.

[0075] Embodiment 15

[0076] Based on the same inventive concept, an embodiment of the present invention further provides a computer device, including a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor. When the processor executes the computer program, the steps of any one of the AVC system anti-misoperation locking parameter setting methods described in Embodiment 1 or 2 are implemented.

[0077] Embodiment 16

[0078] Based on the same inventive concept, an embodiment of the present invention further provides a computer storage medium. The computer storage medium stores a computer program, and when the computer program is executed by a processor, the steps of any one of the AVC system anti-misoperation locking parameter setting methods described in Embodiment 1 or 2 are implemented.

[0079] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0080] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in one Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0081] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including instruction means, and the instruction means implement the functions specified in one Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0082] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: still can modify the specific implementation manners of the present invention or make equivalent replacements, and any modification or equivalent replacement that does not deviate from the spirit and scope of the present invention should be covered by the protection scope of the claims of the present invention.

Claims

1. A method for setting parameters of an AVC system to prevent mislocking, comprising: Setting of the upper and lower limit anti-error blocking parameters of the active power of the AVC system; Setting of the upper and lower limit anti-error blocking parameters of reactive power in the AVC system; Setting of the AVC system bus voltage upper and lower limit anti-error blocking parameters; Setting of the upper and lower limit anti-error locking parameters of the stator voltage of the AVC system; Setting of upper and lower limit anti-error locking parameters of stator current in AVC system; Setting of upper and lower limit anti-error locking parameters of AVC system rotor current; Setting of the upper and lower limit anti-error locking parameters of the AVC system plant voltage; Setting of the AVC system PQ curve anti-mislocking parameters.

2. The method for setting parameters of an AVC system to prevent mislocking according to claim 1 is characterized in that: The upper and lower limit anti-error locking parameters of the active power of the AVC system are set, wherein the upper limit anti-error locking parameter of the active power of the AVC system is taken as the rated active power of the unit, and the lower limit anti-error locking parameter of the active power of the AVC system is taken as the minimum technical output of the unit.

3. The method for setting parameters of an AVC system to prevent mislocking according to claim 1 is characterized in that: The upper and lower limit anti-error locking parameters of the AVC system reactive power are set, wherein the upper limit anti-error locking parameter of the AVC system reactive power is taken as the rated reactive power of the unit, and the lower limit anti-error locking parameter of the AVC system reactive power is taken as 0MVar.

4. The method for setting parameters of an AVC system to prevent mislocking according to claim 1 is characterized in that: The setting of the AVC system bus voltage upper and lower limit anti-error locking parameters is based on the upper and lower limits of the voltage dispatch range of the power generation enterprise issued by the grid dispatch control center.

5. The method for setting parameters of an AVC system to prevent mislocking according to claim 1 is characterized in that: The AVC system stator voltage upper and lower limit anti-error locking parameters are set, wherein the AVC system stator voltage upper limit anti-error locking parameter is 90%-95% of the generator stator voltage overvoltage protection setting, and the AVC system stator voltage lower limit anti-error locking parameter is 90%-95% of the generator stator voltage undervoltage protection setting.

6. The method for setting parameters of an AVC system to prevent mislocking according to claim 1 is characterized by: The upper and lower limit anti-error locking parameters of the AVC system stator current are set, wherein the upper limit anti-error locking parameter of the AVC system stator current is taken as the rated stator current of the unit, and the lower limit anti-error locking parameter of the AVC system stator current is taken as 0A.

7. The method for setting parameters of an AVC system to prevent mislocking according to claim 1 is characterized by: The upper and lower limit anti-error locking parameters of the AVC system rotor current are set, wherein the upper limit anti-error locking parameter of the AVC system rotor current is taken as the rated rotor current of the unit, and the lower limit anti-error locking parameter of the AVC system rotor current is taken as 0A.

8. The method for setting parameters of an AVC system to prevent mislocking according to claim 1 is characterized by: The AVC system plant voltage upper and lower limit anti-error locking parameters are set, wherein the AVC system plant voltage upper limit anti-error locking parameter is 90%-95% of the generator plant voltage overvoltage protection setting, and the AVC system plant voltage lower limit anti-error locking parameter is 90%-95% of the generator plant voltage undervoltage protection setting.

9. The method for setting parameters of an AVC system to prevent mislocking according to claim 1, characterized in that: The AVC system PQ curve anti-mislocking parameters are set, wherein the AVC system PQ parameters are set according to the low-frequency limit setting of the excitation system given in the generator phase-advancing test report, the active power parameter in the PQ curve is consistent with the active power of the low-frequency limit setting of the excitation system, and the reactive power parameter in the PQ curve is 90%-95% of the reactive power of the low-frequency limit setting of the excitation system.

10. A computer device comprising a storage medium, a processor, and a computer program stored in the storage medium and executable on the processor, characterized in that: When the processor executes the computer program, the steps of a method for setting parameters for preventing mislocking of an AVC system as described in any one of claims 1 to 9 are implemented.

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