CN114329858A - Local electrical characteristic-based in-place FA simulation method and system - Google Patents
Local electrical characteristic-based in-place FA simulation method and system Download PDFInfo
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Abstract
The invention discloses a local electrical characteristic-based in-place FA simulation method and a system, wherein the method comprises the following steps: s1: establishing a simulation power distribution network model; s2: simulating the operation condition of the distribution network based on the simulation distribution network model, wherein the simulation distribution network operation condition comprises the power flow distribution of the simulation distribution network normal condition and the current voltage of the fault state; s3: acquiring simulation data simulated by the power distribution network, and performing local FA simulation based on the simulation data, wherein FA logic judgment is performed on the simulation data through a scripted FA simulation module, and switching-on and switching-off operations of simulation switches in the power distribution network are executed according to FA logic judgment results. The invention can truly simulate the local FA logic of the feeder terminal and intuitively and systematically present the whole FA action process, has the technical characteristics of flexible modification of FA simulation logic, good expansibility and the like, and can be applied to the fields of FA training, FA strategy research and verification and the like.
Description
Technical Field
The invention belongs to the technical field of in-place FA simulation, and particularly relates to an in-place FA simulation method and system based on local electrical characteristics.
Background
The local FA technology plays a key role in the fault self-healing process of the traditional power distribution network, and is an important means for improving the power supply reliability and ensuring the stable operation of the power distribution network. The local FA performs fault isolation and non-fault area power supply restoration by collecting the voltage, current and switch state of the power distribution network, the local FA logic is realized based on a feeder terminal installed at a distribution line switch, the feeder terminal collects the electrical characteristics of the power distribution network in real time to perform logic processing, FA logic judgment is performed according to local electrical signals of the line switch when a line fault is detected, and the switch is automatically controlled to be opened to isolate the fault when the judgment switch is at a fault point.
The local FA technology is realized through various logic combinations, and in order to adapt to the characteristics of frequent change of the topology of the power distribution network and diversity of fault characteristics of the power distribution network, the theoretical action condition of the FA of the power distribution network under a specific operation working condition needs to be researched, and FA strategies and fixed value adjustment are carried out according to the theoretical action result so as to realize optimized operation. Meanwhile, for operation and maintenance of the power distribution network, the FA technology has complex logic and high understanding and operation difficulty, and a system-level training scheme based on a feeder network is required to demonstrate and explain the overall action logic of the local FA. The traditional method is based on the in-place FA technical principle, single research and demonstration are carried out on the outlet breaker switch action logic, the tie switch action logic and the branch line switch action logic of the feeder network, and the integral action process of the in-place FA is intuitively and clearly embodied in lack of a real and systematic operation environment. Meanwhile, due to the difference of the local FA strategies, in order to meet the requirement that the FA technical standards of various regions and FA strategy research need to frequently modify FA action logic, a method flexibly adapting to FA logic change is needed to conveniently research the local FA technology.
Disclosure of Invention
The invention provides a local electrical characteristic-based in-place FA simulation method and system for solving the technical problems.
In order to solve the problems, the technical scheme of the invention is as follows:
an in-place FA simulation method based on local electrical characteristics comprises the following steps:
s1: establishing a simulation power distribution network model;
s2: simulating the operation condition of the distribution network based on the simulation distribution network model, wherein the simulation distribution network operation condition comprises the power flow distribution of the simulation distribution network normal condition and the current voltage of the fault state;
s3: acquiring simulation data simulated by the power distribution network, and performing local FA simulation based on the simulation data, wherein FA logic judgment is performed on the simulation data through a scripted FA simulation module, and switching-on and switching-off operations of simulation switches in the power distribution network are executed according to FA logic judgment results.
In one embodiment, in step S3, the performing FA logic determination on the simulation data by the scripted FA simulation module further includes:
detecting voltage changes at two sides of a simulation switch in a power distribution network;
performing overcurrent protection judgment and reclosing judgment according to the type of a simulation switch in the power distribution network, wherein a feeder outlet switch performs overcurrent protection judgment and executes reclosing logic, and a common circuit switch performs overcurrent judgment to generate an overcurrent signal;
and performing FA logic judgment on the ordinary circuit switch according to the voltage change at two sides of the simulation switch in the power distribution network and fault signals detected in overcurrent protection judgment and/or reclosing judgment.
In one embodiment, the FA logic judgment comprises voltage time type FA logic judgment, voltage current type FA logic judgment and self-adaptive type FA logic judgment;
the voltage time type FA logic determination further comprises: fault location and isolation are carried out by detecting voltage changes at two sides of a simulation switch in a power distribution network and combining with a simulation feeder outlet switch reclosing logic in the power distribution network, and power supply of a non-fault area is recovered through a single-side voltage-loss switching-off logic of a contact switch;
the voltage current mode FA logic judgment further comprises: the fault locating, isolating and recovering processes are completed by detecting the voltage change of the two sides of the simulation switch in the power distribution network and combining an overcurrent fault signal to lock the fault switch;
the adaptive FA logic determines further comprising: the method comprises the steps of detecting voltage changes at two sides of an emulation switch in a power distribution network and overcurrent fault signals, combining branch line delay switching-in logic to conduct FA processing of a multi-branch feeder network, and isolating main line faults through branch line delay switching-in fixed values.
In one embodiment, the step S3, acquiring simulation data of the power distribution network simulation further includes:
and obtaining simulation data through topology analysis and load flow calculation of a simulation feeder network in the power distribution network.
In one embodiment, the FA logic determination further includes an overcurrent protection determination and a reclosing determination.
An in-place FA simulation system based on local electrical characteristics, comprising: the system comprises a power distribution network topology modeling module, a power distribution network graphic modeling module, a simulation power distribution network module, a data interface module and a plurality of FA simulation modules, wherein the power distribution network topology modeling module and the power distribution network graphic modeling module are respectively connected with the simulation power distribution network module, and the FA simulation modules are connected with the simulation power distribution network module through a data interface module;
the power distribution network topology modeling module is matched with the power distribution network graphic modeling module to establish a model for simulating a power distribution network;
the simulation power distribution network module is used for simulating the operation condition of the power distribution network based on the simulation power distribution network model, wherein the operation condition of the simulation power distribution network comprises the power flow distribution of the normal condition of the simulation power distribution network and the current and voltage of the fault state;
the data interface module is used for establishing a control loop of the FA simulation module and the simulation power distribution network module, acquiring simulation data simulated by the power distribution network and executing action response of the FA simulation module;
the FA simulation module is used for performing in-place FA simulation based on simulation data, wherein FA logic judgment is performed on the simulation data, and switching-on and switching-off operations of simulation switches in the power distribution network are executed according to the FA logic judgment result.
In one embodiment, the FA simulation modules correspond to simulation switches in the power distribution network one to one, and in-place FA simulation is synchronously executed among the FA simulation modules, so that the in-place FA overall action flow of the simulation feeder network in the power distribution network is realized.
In one embodiment, the FA simulation module is used for voltage-time FA logic simulation, voltage-current FA logic simulation, adaptive FA logic simulation, and over-current protection logic simulation and reclosing logic simulation, wherein,
the voltage time type FA logic simulation detects the voltage change at two sides of a simulation switch in a power distribution network, performs fault location and isolation by combining with the simulation feeder outlet switch reclosing logic in the power distribution network, and restores the power supply of a non-fault area by the single-side voltage loss switching-off logic of a contact switch;
the voltage current type FA logic simulation completes the fault positioning, isolation and recovery processes by detecting the voltage change of two sides of a simulation switch in a power distribution network and combining an overcurrent fault signal to lock a fault switch;
the self-adaptive FA logic simulation carries out FA processing on a multi-branch feeder network by detecting voltage changes at two sides of a simulation switch in a power distribution network and overcurrent fault signals and combining branch line delay switching-on logic, and main line faults are isolated by branch line delay switching-on fixed values.
A computer device comprising a memory and a processor, the memory having stored therein computer readable instructions which, when executed by the processor, cause the processor to perform the above local FA simulation method based on local electrical characteristics.
A storage medium having stored thereon computer-readable instructions that, when executed by one or more processors, cause the one or more processors to perform the above in-place FA simulation method based on local electrical characteristics.
Compared with the prior art, the invention has the following advantages and positive effects:
the invention can truly simulate the in-place FA logic of the feeder terminal and intuitively and systematically present the whole FA action process, wherein, the FA action process of the feeder terminal can be truly simulated through the judgment of the multi-instance FA logic, the data interface module based on local simulation data can truly simulate the acquisition and control behaviors of the feeder terminal, the scripted FA simulation module can be flexibly modified and is suitable for various in-place FA logic strategies, in addition, the scripted logic interface has good expansibility and can be applied to the fields of FA training, FA strategy research and verification and the like.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
FIG. 1 is a schematic overall flow chart of a local FA simulation method according to the present invention;
FIG. 2 is a schematic diagram of an overall architecture of a local FA simulation system according to the present invention;
FIG. 3 is a schematic diagram of a data interface module of a local FA simulation system according to the present invention;
FIG. 4 is a schematic structural diagram of an FA simulation module of the local FA simulation method based on local electrical characteristics according to the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
The local electrical characteristic-based in-place FA simulation method and system according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the present application provides a local FA simulation method based on local electrical characteristics, comprising the following steps:
s1: establishing a simulation power distribution network model;
s2: simulating the operation condition of the distribution network based on the simulation distribution network model, wherein the simulation distribution network operation condition comprises the power flow distribution of the simulation distribution network normal condition and the current voltage of the fault state;
s3: acquiring simulation data simulated by the power distribution network, and performing local FA simulation based on the simulation data, wherein FA logic judgment is performed on the simulation data through a scripted FA simulation module, and switching-on and switching-off operations of simulation switches in the power distribution network are executed according to FA logic judgment results.
The present embodiment will now be described in detail, but is not limited thereto.
The local FA simulation method based on local electrical characteristics provided by the embodiment can truly simulate the local FA logic of the feeder terminal and intuitively and systematically present the whole FA action process, has the technical characteristics of flexible modification of the FA simulation logic, good expansibility and the like, and can be applied to the fields of FA training, FA strategy research and verification and the like.
In the embodiment, a simulation power distribution network model is established through topology modeling and graphic modeling, modeling simulation is performed on all switches of a simulation feeder network based on the simulation power distribution network model, identifiers of a source end and a load end of a simulation switch are established according to topology analysis on the feeder network, voltage of a source end is represented by voltage 'UA' of the simulation switch A phase, and voltage of a load end is represented by voltage 'UC' of a C phase of the simulation switch C phase. The change characteristics of the voltage on two sides of the simulation switch are detected by the scripted FA simulation module and corresponding action logic is generated.
The scripted FA simulation module corresponds to simulation switches in the power distribution network one by one, and the action behavior of the feeder terminal is simulated really through a plurality of script examples, wherein the input of the FA simulation module is the electrical data of the simulation switches, the action result generated by each script example is executed by the simulation switch associated with the script example, and meanwhile, the action of each script example can influence the action of the lower-level script example related to the topology.
Specifically, the FA logic judgment of the simulation data by the scripted FA simulation module further includes: detecting voltage changes at two sides of a simulation switch in a power distribution network; performing overcurrent protection judgment and reclosing judgment according to the type of a simulation switch in the power distribution network, wherein a feeder outlet switch performs overcurrent protection judgment and executes reclosing logic, and a common circuit switch performs overcurrent judgment to generate an overcurrent signal; and performing FA logic judgment on the ordinary circuit switch according to the voltage change at two sides of the simulation switch in the power distribution network and fault signals detected in overcurrent protection judgment and/or reclosing judgment.
Specifically, the FA logic determination includes a voltage time type FA logic determination, a voltage current type FA logic determination, and an adaptive type FA logic determination, where the voltage time type FA logic determination further includes: fault location and isolation are carried out by detecting voltage changes at two sides of a simulation switch in a power distribution network and combining with a simulation feeder outlet switch reclosing logic in the power distribution network, and power supply of a non-fault area is recovered through a single-side voltage-loss switching-off logic of a contact switch; the voltage current mode FA logic judgment further comprises: the fault locating, isolating and recovering processes are completed by detecting the voltage change of the two sides of the simulation switch in the power distribution network and combining an overcurrent fault signal to lock the fault switch; the adaptive FA logic determines further comprising: the method comprises the steps of detecting voltage changes at two sides of an emulation switch in a power distribution network and overcurrent fault signals, combining branch line delay switching-in logic to conduct FA processing of a multi-branch feeder network, and isolating main line faults through branch line delay switching-in fixed values.
In this embodiment, the ground-based FA simulation is performed with logical operation based on simulation data of the simulation power distribution network, and the simulation data is obtained by topology analysis and load flow calculation of the simulation feeder network. The scripted FA simulation module detects fault signals of the simulation power distribution network in real time, changes double-side voltages of the simulation switch into starting conditions, controls the branch switch after voltage loss of the double sides is detected, controls the switch after power on of the single side is detected, and completes in-place FA logic simulation by combining various action logics and according to switch types. The FA simulation script can realize voltage time type FA logic simulation, voltage current type FA logic simulation, self-adaptive type FA logic simulation, logic simulation such as overcurrent protection and reclosing.
Referring to fig. 2, the present application provides an in-place FA simulation system based on local electrical characteristics according to embodiment 1, including: the system comprises a power distribution network topology modeling module, a power distribution network graphic modeling module, a simulation power distribution network module, a data interface module and a plurality of FA simulation modules, wherein the power distribution network topology modeling module and the power distribution network graphic modeling module are respectively connected with the simulation power distribution network module, and the FA simulation modules are connected with the simulation power distribution network module through a data interface module;
the power distribution network topology modeling module is matched with the power distribution network graphic modeling module to establish a model for simulating a power distribution network;
the simulation power distribution network module is used for simulating the operation condition of the power distribution network based on the simulation power distribution network model, wherein the operation condition of the simulation power distribution network comprises the power flow distribution of the normal condition of the simulation power distribution network and the current and voltage of the fault state;
the data interface module is used for establishing a control loop of the FA simulation module and the simulation power distribution network module, acquiring simulation data simulated by the power distribution network and executing action response of the FA simulation module;
the FA simulation module is used for performing in-place FA simulation based on simulation data, wherein FA logic judgment is performed on the simulation data, and switching-on and switching-off operations of simulation switches in the power distribution network are executed according to the FA logic judgment result.
The present embodiment will now be described in detail, but is not limited thereto.
The system mainly comprises a power distribution network topology modeling module, a power distribution network graphic modeling module, a simulation power distribution network module, a data interface module and a plurality of FA simulation modules, wherein the in-situ FA simulation is based on the simulation data of the simulation power distribution network module to perform logic operation, and the simulation data is obtained through topology analysis and load flow calculation of a simulation feeder network. The FA simulation module detects fault signals of the simulation power distribution network in real time, changes double-side voltages of the simulation switch into starting conditions, controls the branch switch after detecting double-side voltage loss, controls the switch after detecting single-side power supply, and completes in-place FA logic simulation by combining various action logics according to switch types. The FA simulation script can realize voltage time type FA logic simulation, voltage current type FA logic simulation, self-adaptive type FA logic simulation, logic simulation such as overcurrent protection and reclosing. The in-place FA script logic is briefly described as follows:
1) voltage-time type FA: fault location and isolation are carried out by detecting voltage changes at two sides of the simulation switch and combining with simulated reclosing logic of a feeder outlet switch, and power supply of a non-fault area is recovered by connecting single-side voltage-loss switching-off logic of the switch;
2) voltage current mode FA: the fault switch is locked by detecting the voltage change and combining an overcurrent fault signal, so that the fault positioning, isolating and recovering processes are completed;
3) adaptive FA: by detecting voltage change and overcurrent fault signals and combining branch line delay switching-on logic, the method can adapt to FA processing of a multi-branch feeder network, and avoids main line faults through branch line delay switching-on fixed values.
Specifically, referring to fig. 3, the data interface module of this embodiment is used to establish a control loop between the FA simulation module and the simulation power distribution network module, and is responsible for acquiring simulation data and responding to actions of the FA simulation module, where the simulation switch is a switch model of the simulation power distribution network, and the simulation power distribution network module simulates the change characteristics of voltages on both sides of the switch, that is: UA represents the source end voltage of the simulation switch, UC represents the load end voltage of the simulation switch, the data interface module is a multi-instance data operation interface, the FA simulation module is a multi-instance in-place FA logic script which has a mapping relation with the simulation switch, namely, a plurality of simulation switches of the simulation power distribution network correspond to one FA simulation script instance.
Specifically, the FA simulation module is implemented based on a modular script language, performs logic operation by acquiring local electrical data of the simulated power distribution network, and further, referring to fig. 4, the simulation script includes an FA fixed-value operation interface, an overcurrent protection logic, a reclosing logic, an in-place FA logic, and an electrical data interface, where the electrical data interface and the fixed-value operation interface are responsible for performing data interaction with the simulated power distribution network, and are used for acquiring a current voltage and a switching state and performing a fixed-value setting operation of an in-place FA, and an in-place FA logic task is a core function executed by the simulation script and is responsible for implementing in-place FA logic simulation.
The invention can truly simulate the in-place FA logic of the feeder terminal and intuitively and systematically present the whole FA action process, wherein, the FA action process of the feeder terminal can be truly simulated through the judgment of the multi-instance FA logic, the data interface module based on local simulation data can truly simulate the acquisition and control behaviors of the feeder terminal, the scripted FA simulation module can be flexibly modified and is suitable for various in-place FA logic strategies, in addition, the scripted logic interface has good expansibility and can be applied to the fields of FA training, FA strategy research and verification and the like.
The present application further proposes a computer device comprising a memory and a processor, the memory having stored therein computer-readable instructions which, when executed by the processor, cause the processor to perform the local FA in-place simulation method based on local electrical characteristics as mentioned in the above embodiments.
The present application proposes a storage medium storing computer-readable instructions which, when executed by one or more processors, cause the one or more processors to perform the local electrical characteristic-based in-place FA simulation method as mentioned in the above embodiments.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic disk storage, quantum memory, graphene-based storage media or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express some exemplary embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An in-place FA simulation method based on local electrical characteristics, comprising the steps of:
s1: establishing a simulation power distribution network model;
s2: simulating the operation condition of the distribution network based on the simulation distribution network model, wherein the operation condition of the simulation distribution network comprises the power flow distribution of the normal condition of the simulation distribution network and the current and voltage of the fault state;
s3: acquiring simulation data simulated by the power distribution network, and performing local FA simulation based on the simulation data, wherein FA logic judgment is performed on the simulation data through a scripted FA simulation module, and switching-on and switching-off operations of simulation switches in the power distribution network are executed according to FA logic judgment results.
2. The local electrical characteristic-based local FA simulation method according to claim 1, wherein in step S3, the FA logic determination of the simulation data by the scripted FA simulation module further comprises:
detecting voltage changes at two sides of a simulation switch in a power distribution network;
performing overcurrent protection judgment and reclosing judgment according to the type of a simulation switch in the power distribution network, wherein a feeder outlet switch performs overcurrent protection judgment and executes reclosing logic, and a common circuit switch performs overcurrent judgment to generate an overcurrent signal;
and performing FA logic judgment on the ordinary circuit switch according to the voltage change at two sides of the simulation switch in the power distribution network and the fault signal detected in the overcurrent protection judgment and/or the reclosing judgment.
3. The local electrical characteristic-based in-place FA simulation method according to claim 2, wherein the FA logic judgment comprises a voltage time type FA logic judgment, a voltage current type FA logic judgment, an adaptive type FA logic judgment;
the voltage time type FA logic determination further comprises: fault location and isolation are carried out by detecting voltage changes at two sides of a simulation switch in a power distribution network and combining with a simulation feeder outlet switch reclosing logic in the power distribution network, and power supply of a non-fault area is recovered through a single-side voltage-loss switching-off logic of a contact switch;
the voltage current mode FA logic judgment further comprises: the fault locating, isolating and recovering processes are completed by detecting the voltage change of the two sides of the simulation switch in the power distribution network and combining an overcurrent fault signal to lock the fault switch;
the adaptive FA logic determining further comprises: the method comprises the steps of detecting voltage changes at two sides of an emulation switch in a power distribution network and overcurrent fault signals, combining branch line delay switching-in logic to conduct FA processing of a multi-branch feeder network, and isolating main line faults through branch line delay switching-in fixed values.
4. The local electrical characteristic-based local FA simulation method according to any one of the claims 1 to 3, wherein the step S3 of obtaining simulation data for power distribution network simulation further comprises:
and obtaining the simulation data through topology analysis and load flow calculation of a simulation feeder network in the power distribution network.
5. The in-place FA simulation method based on local electrical characteristics of any one of claims 1 to 3, wherein the FA logic determination further comprises an overcurrent protection determination and a reclosing determination.
6. An in-place FA simulation system based on local electrical characteristics, comprising: the system comprises a power distribution network topology modeling module, a power distribution network graphic modeling module, a simulation power distribution network module, a data interface module and a plurality of FA simulation modules, wherein the power distribution network topology modeling module and the power distribution network graphic modeling module are respectively connected with the simulation power distribution network module, and the FA simulation modules are connected with the simulation power distribution network module through a data interface module;
the power distribution network topology modeling module is matched with the power distribution network graphic modeling module to establish a model for simulating a power distribution network;
the simulation power distribution network module is used for simulating the operation condition of a power distribution network based on a simulation power distribution network model, wherein the operation condition of the simulation power distribution network comprises the power flow distribution of the normal condition of the simulation power distribution network and the current and voltage of a fault state;
the data interface module is used for establishing a control loop of the FA simulation module and the simulation power distribution network module, acquiring simulation data simulated by the power distribution network and executing action response of the FA simulation module;
the FA simulation module is used for performing in-place FA simulation based on the simulation data, wherein FA logic judgment is performed on the simulation data, and switching-on and switching-off operations of simulation switches in the power distribution network are executed according to the FA logic judgment result.
7. The local electrical characteristic-based local FA simulation system according to claim 6, wherein the FA simulation modules are in one-to-one correspondence with simulation switches in the power distribution network, and the local FA simulation is synchronously executed among a plurality of FA simulation modules to realize the local FA overall operation flow of the simulation feeder network in the power distribution network.
8. The in-place FA simulation system according to claim 6 or 7, wherein the FA simulation module is used for voltage-time type FA logic simulation, voltage-current type FA logic simulation, adaptive type FA logic simulation, and over-current protection logic simulation and reclosing logic simulation, wherein,
the voltage time type FA logic simulation detects the voltage change at two sides of a simulation switch in a power distribution network, performs fault location and isolation by combining with a simulation feeder outlet switch reclosing logic in the power distribution network, and restores power supply in a non-fault area by connecting a switch single-side voltage-loss switching-off logic;
the voltage current type FA logic simulation completes the fault positioning, isolation and recovery processes by detecting the voltage change of two sides of a simulation switch in a power distribution network and combining an overcurrent fault signal to lock a fault switch;
the self-adaptive FA logic simulation carries out FA processing on a multi-branch feeder network by detecting voltage changes at two sides of a simulation switch in a power distribution network and overcurrent fault signals and combining branch line delay switching-on logic, and main line faults are isolated by branch line delay switching-on fixed values.
9. A computer device comprising a memory and a processor, the memory having stored therein computer readable instructions which, when executed by the processor, cause the processor to perform the local electrical characteristics-based in-place FA simulation method of any one of claims 1 to 5.
10. A storage medium storing computer readable instructions which, when executed by one or more processors, cause the one or more processors to perform the in-place FA simulation method based on local electrical characteristics of any one of claims 1 to 5.
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