A remote four-remote information transmission type automatic power dispatching method

Abstract

The application relates to the technical field of power systems, and particularly discloses a remote four-remote information transmission type automatic power dispatching method, which is configured with standby machines for a plurality of key devices, double-loop power supply systems for power consumption devices, double-set protection systems, double-set dispatching data network systems, double-channel communication systems, ring network topological structures, double-set system operation management systems and double-set data backup systems, so that the reliability and stability of the system are effectively improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of power system technology, and in particular to a remote four-remote information transmission-based automated power dispatching method. Background Technology

[0002] Remote signaling, telemetry, remote control, and remote adjustment information transmission refers to the transmission of four types of information—remote signaling, telemetry, remote control, and remote adjustment—achieved through remote control technology. Remote control technology is an important technology in power system automation; it enables remote monitoring, control, and management of the power system by transmitting real-time data to a monitoring center.

[0003] Remote signaling: Remote signaling refers to the transmission of discrete signals, such as switch status and fault alarms, through remote control technology. Remote signaling information transmission is mainly used for power system status monitoring and fault diagnosis.

[0004] Remote Measurement: Remote measurement refers to the transmission of continuous analog signals, such as voltage, current, and power, via telemetry technology. Telemetry information transmission is primarily used for real-time data monitoring and analysis of power systems.

[0005] Remote control: Remote control refers to the remote operation of power system equipment through telemetry technology, such as switching on and off switches and setting protection devices. Remote control information transmission is mainly used for the operation control and fault handling of power systems.

[0006] Remote Adjustment: Remote adjustment refers to the remote regulation of power system equipment through telemetry technology, such as voltage regulation and reactive power compensation. Remote adjustment information transmission is mainly used for the optimized operation and stability adjustment of power systems.

[0007] Remote sensing and information transmission plays an important role in the operation and management of power systems, and can improve the safety, reliability and economy of power systems.

[0008] During the transmission of remote information, faults and interruptions frequently occur due to various reasons, resulting in poor reliability and stability of the entire automated power dispatching method.

[0009] Therefore, existing power dispatching methods need to be improved to address their poor reliability and stability.

[0010] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0011] One objective of this invention is to provide a remote four-remote information transmission-based automated power dispatching method, which can effectively solve the problems of poor reliability and stability of existing power dispatching methods.

[0012] To achieve the above objectives, the present invention provides a remote four-remote information transmission-based automated power dispatching method, comprising:

[0013] S10: Configure backup machines for several key devices. When any of the key devices fails, the corresponding backup machine automatically takes over the faulty key device to ensure the normal operation of the system.

[0014] S20: Configure a dual-circuit power supply system for electrical equipment so that if one circuit fails, the other circuit continues to supply power to the electrical equipment.

[0015] S30: Develop dual protection systems, one as the main protection system and the other as a backup protection system; when the main protection system fails or malfunctions, the backup protection system automatically switches to the main protection system to ensure the normal operation of the system;

[0016] S40: Develop dual scheduling data network systems, one as the primary scheduling data network system and the other as a backup scheduling data network system; when the primary scheduling data network system fails or malfunctions, the backup scheduling data network system automatically switches to the primary scheduling data network system to ensure normal data transmission;

[0017] S50: Establish a dual-channel communication system. When one channel fails, the other channel automatically takes over the communication task to ensure normal data transmission.

[0018] S60: It adopts a ring network topology, so that when a node fails, data can continue to be transmitted through other nodes;

[0019] S70: Establish a dual-system operation and management system, one responsible for the operation and maintenance of the main system, and the other responsible for the operation and maintenance of the backup system; when the main system fails or malfunctions, the backup system quickly takes over the operation tasks of the main system;

[0020] S80: Establish dual data backup systems to perform real-time backups of important data.

[0021] Optionally, the key equipment includes protection devices and / or switching devices.

[0022] Optionally, in step S30:

[0023] In a dual protection system, the two systems employ independent hardware devices, sensors, actuators, and software systems.

[0024] Optionally, in step S30:

[0025] When the main protection system fails or malfunctions, the automatic switching mechanism module detects the anomaly, determines the nature and severity of the fault, and decides whether to switch the system.

[0026] Optionally, the automatic switching mechanism module includes:

[0027] The fault detection unit is used to immediately send a signal to the control system when a fault is detected in the power system;

[0028] The fault diagnosis unit is used to diagnose faults after the control system receives a fault signal.

[0029] The switching decision unit is used to make a switching decision based on the type and severity of the fault after the fault diagnosis is completed.

[0030] The switching execution unit is used to automatically execute the switching operation after a switching decision is made.

[0031] Optionally, the "making a switching decision based on the type and severity of the fault" includes:

[0032] If the fault is permanent, the backup equipment or system will be automatically switched to the working state.

[0033] If the fault is temporary, the circuit breaker will automatically reclose.

[0034] Optionally, the dual-channel communication system includes fiber optic communication and wireless communication.

[0035] Optionally, in step S60:

[0036] The ring network topology includes the remote protection action 101 channel and the remote protection action scheduling data network channel, which are redundant with each other.

[0037] The beneficial effects of this invention are that it provides a remote four-remote information transmission-based automated power dispatching method, which has the following beneficial effects:

[0038] ① Improve system reliability: By implementing channel redundancy, when a channel fails, the system can automatically switch to the backup channel to ensure the smooth operation of protection actions, thereby improving the reliability of the entire system.

[0039] ② Enhance system stability: By adopting fiber optic communication technology and ring network topology, high-speed, high-bandwidth and low-latency data transmission is ensured, effectively avoiding protection failures caused by communication faults, thereby enhancing system stability.

[0040] ③ Improve communication efficiency: By adopting fiber optic communication technology, high-speed, high-bandwidth and low-latency data transmission can be achieved, thereby improving the overall communication efficiency of the system and reducing the probability of communication failures.

[0041] ④ Reduce maintenance costs: By implementing channel redundancy, system paralysis caused by single point of failure is reduced, thereby reducing system maintenance costs and downtime.

[0042] In summary, the remote four-remote information transmission-based automated power dispatching method provided by this invention effectively improves the reliability and stability of the system and reduces maintenance costs by adopting key technologies such as optical fiber communication technology, ring network topology, and channel redundancy. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 The flowchart of the remote four-remote information transmission-based automated power dispatching method provided in the embodiment is shown. Detailed Implementation

[0045] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0046] In the description of this invention, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present simultaneously. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be an intermediate component present simultaneously.

[0047] Furthermore, terms such as “long,” “short,” “inner,” and “outer” indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the purpose of describing the present invention and are not intended to indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientational configuration. Therefore, they should not be construed as limitations of the present invention.

[0048] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0049] This invention provides a remote four-remote information transmission-based automated power dispatching method, which is applicable to application scenarios of automated power system dispatching through remote four-remote information transmission technology. It can effectively solve the problem of poor reliability and stability of existing power dispatching methods and greatly improve the reliability and stability of power systems.

[0050] See Figure 1 The remote control, remote information transmission-based automated power dispatching method provided in this embodiment includes the following steps:

[0051] S10: Configure backup machines for several key devices. When any of the key devices fails, the corresponding backup machine automatically takes over the faulty key device to ensure the normal operation of the system.

[0052] Optionally, the key equipment includes protection devices and / or switching devices, etc.

[0053] Redundancy design refers to providing functionally identical backup devices (i.e., standby machines) for certain critical equipment in system design. This allows the backup equipment to automatically take over the functions of the primary equipment in the event of a failure, thus ensuring the normal operation of the system. The main purpose of redundancy design is to improve the reliability, stability, and security of the system.

[0054] In the redundancy design of critical equipment, protection devices and switching equipment are common examples. Protection devices are typically used to detect faults in the power system, such as overcurrent, overvoltage, and short circuits, and automatically disconnect the power supply when a fault is detected to protect the safe operation of the system. Switching equipment is used to control and disconnect the power supply to facilitate equipment maintenance and repair.

[0055] When a protection device or switching equipment fails, redundant equipment can automatically take over its function, thereby ensuring the normal operation of the system. For example, when the main protection device fails, the backup protection device can automatically start and take over the function of the main protection device to continue protecting the power system. Similarly, when the main switching equipment fails, the backup switching equipment can automatically switch over and take over the function of the main switching equipment to continue controlling and cutting off the power supply.

[0056] The advantage of redundancy design is improved system reliability and stability. Since backup equipment can automatically take over the functions of the primary equipment when it fails, the system operation is not affected by the fault, thus ensuring normal system operation. Furthermore, redundancy design can improve system security and prevent accidents caused by equipment failure.

[0057] However, redundancy also has some drawbacks. First, it increases system cost because a backup device is needed for each critical component. Second, it increases system complexity because the backup device needs to be monitored and managed. Finally, it may increase system maintenance workload because the backup device requires regular inspection and maintenance.

[0058] In summary, redundancy design is an effective system design method that improves system reliability, stability, and security by providing backup equipment for critical devices. However, redundancy design also has some drawbacks that need to be weighed and considered in system design and management.

[0059] S20: Configure a dual-circuit power supply system for electrical equipment so that if one circuit fails, the other circuit can continue to supply power to the equipment.

[0060] A dual-circuit power supply system refers to a system that provides power to the same electrical equipment through two sets of power lines. In this system, each set of power lines contains a loop, and each loop can independently provide power to the electrical equipment. When one loop fails, the other loop can continue to supply power, thus ensuring the normal operation of the electrical equipment.

[0061] The main advantage of a dual-circuit power supply system is improved reliability and stability. Because each power line is independent, when one circuit fails, the other automatically takes over, preventing power outages. Furthermore, a dual-circuit power supply system allows for seamless switching, ensuring that equipment is not affected during power transitions.

[0062] Dual-circuit power supply systems are widely used in critical electrical equipment and locations such as hospitals, telecommunications equipment rooms, and coal mines. In these locations, the reliability and stability of power supply are paramount; a power outage could have serious consequences. Therefore, establishing a dual-circuit power supply system can effectively prevent power outages caused by power failures and ensure the normal operation of electrical equipment.

[0063] In summary, a dual-circuit power supply system is a reliable power supply solution. By providing two independent power lines for electrical equipment, it ensures the normal operation of the equipment and improves the reliability and stability of the power supply.

[0064] S30: Develop a dual protection system, one as the primary protection system and the other as a backup protection system. In the event of a failure or malfunction of the primary protection system, the backup protection system can automatically switch to the primary protection system to ensure the normal operation of the system.

[0065] A dual protection system refers to the use of two independent protection systems in critical equipment and systems: a primary protection system and a backup protection system. In the event of a failure or malfunction of the primary protection system, the backup system can automatically switch over to the primary system, ensuring the normal operation of the system. This design aims to improve the reliability, stability, and security of the system.

[0066] The main protection system is responsible for monitoring the operating status of critical equipment and systems in real time. Once an anomaly is detected, the main protection system will immediately take measures, such as cutting off power and isolating the fault, to protect the safe operation of the equipment and system. The backup protection system automatically takes over the functions of the main protection system when it fails or malfunctions, ensuring the normal operation of the system.

[0067] In a dual-protection system, the two systems employ independent hardware devices, sensors, actuators, and software systems. This ensures that if one system fails, the other will not be affected. Furthermore, the two systems must have good interoperability to enable seamless monitoring and control when the backup system takes over the functions of the primary system.

[0068] To achieve automatic switching between dual protection systems, a robust automatic switching mechanism needs to be designed. This mechanism typically includes fault detection, fault diagnosis, switching decision-making, and switching execution. When the primary protection system fails or malfunctions, the automatic switching mechanism module can quickly detect the anomaly, determine the nature and severity of the fault, and decide whether to switch systems. After the switching decision is made, the switching execution phase is responsible for switching the backup protection system to the primary protection system, ensuring the normal operation of the system.

[0069] Furthermore, an automatic switching mechanism is a mechanism that automatically switches a backup system or device to the operating state when a system or device fails. The automatic switching mechanism in a power system will be used as an example below.

[0070] In this embodiment, the automatic switching mechanism module includes the following parts:

[0071] ① Fault Detection Unit: Fault detection is the first step in the automatic switching mechanism. This step is usually completed by protection devices, such as current protection and voltage protection. When the protection device detects a fault in the power system, it will immediately send a signal to the control system.

[0072] ② Fault Diagnosis Unit: After receiving a fault signal, the control system performs fault diagnosis. This step mainly involves determining the type and severity of the fault through logical judgment. For example, it determines whether the fault is temporary or permanent.

[0073] ③ Switching Decision Unit: After completing the fault diagnosis, the control system will make a switching decision based on the type and severity of the fault. If the fault is permanent, the control system will automatically switch the backup equipment or system to the working state; if the fault is temporary, the control system may take other measures, such as automatic reclosing.

[0074] ④ Switching Execution Unit: After making the switching decision, the control system will automatically execute the switching operation. This step typically includes switching equipment states, resetting parameters, and transferring data. After the switching is completed, the standby equipment or system will begin operation to ensure the normal operation of the power system.

[0075] The above is an example of an automatic switching mechanism in a power system. Through fault detection, fault judgment, switching decision-making, and switching execution, the automatic switching mechanism can ensure that a quick and accurate switch can be performed when a system or equipment failure occurs, thus guaranteeing the normal operation of the power system.

[0076] In summary, a dual protection system is an effective method for protecting critical equipment and systems. By employing two independent protection systems, it improves the system's reliability, stability, and security. In the event of a failure or malfunction of the primary protection system, the backup system can automatically switch to become the primary system, ensuring normal system operation and thus guaranteeing the safe and stable operation of critical equipment and systems.

[0077] S40: Develop dual scheduling data network systems: one as the primary scheduling data network and the other as a backup scheduling data network system. In the event of a failure or malfunction of the primary scheduling data network system, the backup scheduling data network system can automatically switch to the primary system, ensuring normal data transmission.

[0078] A dual-set dispatch data network system employs two independent dispatch data network systems: a primary dispatch data network system and a backup dispatch data network system. In the event of a failure or malfunction of the primary dispatch data network system, the backup dispatch data network system can automatically switch over to become the primary system, ensuring normal data transmission. This design aims to improve the system's reliability, stability, and security.

[0079] The main dispatch data network system is responsible for real-time collection, processing, and transmission of power plant operation data, including real-time data from all aspects of power generation, transmission, and distribution. This data is crucial for the safe and stable operation of the power system. The backup dispatch data network system automatically takes over the functions of the main system in the event of a failure or malfunction, ensuring normal data transmission and stable system operation.

[0080] In a dual-system dispatch data network, the two systems employ independent hardware, network architecture, and software systems. This ensures that if one system fails, the other remains unaffected. Furthermore, the two systems must possess good interoperability to ensure seamless data transmission and system operation when the backup system takes over the primary system's functions.

[0081] To achieve automatic switching between two scheduling data network systems, a robust automatic switching mechanism needs to be designed. This mechanism typically includes fault detection, fault diagnosis, switching decision-making, and switching execution. When the primary scheduling data network system fails or malfunctions, the automatic switching mechanism can quickly detect the anomaly, determine the nature and severity of the fault, and decide whether to perform a system switchover. After the switching decision is made, the switching execution phase is responsible for switching the backup scheduling data network system to the primary scheduling data network system, ensuring normal data transmission and stable system operation.

[0082] In summary, the dual-system dispatch data network is an effective power system design method. By employing two independent dispatch data network systems, the reliability, stability, and security of the system are improved. In the event of a failure or malfunction of the primary dispatch data network system, the backup dispatch data network system can automatically switch to the primary system, ensuring normal data transmission and thus guaranteeing the safe and stable operation of the power system.

[0083] S50: Establish a dual-channel communication system, including fiber optic communication and wireless communication. When one channel fails, the other channel can automatically take over the communication task to ensure normal data transmission.

[0084] S60: It adopts a ring network topology, so that when a node fails, data can continue to be transmitted through other nodes.

[0085] A ring network topology is a common network topology, consisting of multiple nodes forming a closed loop. In a ring network, each node is connected to its neighbors, and each node can only communicate with its neighbors. Ring network topologies offer the following advantages:

[0086] High reliability: When a node fails, data can continue to be transmitted through other nodes without causing the entire network to be interrupted.

[0087] Easy to expand: Ring networks can be expanded by adding nodes, and adding nodes does not affect the overall structure of the network.

[0088] Low cost: Ring networks require only a small number of cables and equipment, so the cost is relatively low.

[0089] High communication speed: Since all nodes in a ring network are adjacent, the communication speed is relatively fast.

[0090] In power systems, employing a ring network topology can improve the reliability and security of remote sensing, telemetry, and information transmission. For example, when one node fails, other nodes can continue transmitting remote sensing information, thus ensuring the normal operation of the power system. Furthermore, the ring network topology can enhance the fault tolerance of the power system, enabling it to better cope with various faults and anomalies.

[0091] In practical applications, ring network topology is often combined with other network topologies, such as star networks and bus networks, to achieve more efficient and reliable remote information transmission.

[0092] Generally, in the actual operation of remote control information transmission, the "remote protection action 101 channel" is usually used as the data transmission channel for the "remote control" function, and the "remote protection action scheduling data network channel" is used as the data transmission channel for the "remote adjustment" function.

[0093] In this embodiment, the ring network topology includes a remote protection action 101 channel and a remote protection action scheduling data network channel. The remote protection action 101 channel and the remote protection action scheduling data network channel are redundant to each other, thereby reducing the number of redundant data transmission channels.

[0094] S70: Establish a dual-system operation and management system, one responsible for the operation and maintenance of the main system, and the other responsible for the operation and maintenance of the backup system.

[0095] When the primary system fails or malfunctions, the backup system can quickly take over the primary system's operation.

[0096] S80: Establish dual data backup systems to perform real-time backups of important data.

[0097] When a system malfunctions or fails, data can be restored from the backup system to ensure data integrity and consistency.

[0098] The remote control, telemetry, and information transmission-based automated power dispatching method provided in this embodiment adopts the following specific measures:

[0099] ① Adopting fiber optic communication technology: High-speed, high-bandwidth and low-latency data transmission is achieved through fiber optic communication technology, thereby improving the communication efficiency of the entire system.

[0100] ② Introduce a ring network topology: Use a ring network topology in the communication network to ensure that data can still be transmitted normally when communication nodes within a certain range fail.

[0101] ③ Achieve channel redundancy: By introducing backup channels, redundancy is achieved between the remote protection action channel and the remote protection action scheduling data network channel, thereby improving the reliability and stability of the entire system.

[0102] The following beneficial effects are achieved:

[0103] ① Improve system reliability: By implementing channel redundancy, when a channel fails, the system can automatically switch to the backup channel to ensure the smooth operation of protection actions, thereby improving the reliability of the entire system.

[0104] ② Enhance system stability: By adopting fiber optic communication technology and ring network topology, high-speed, high-bandwidth and low-latency data transmission is ensured, effectively avoiding protection failures caused by communication faults, thereby enhancing system stability.

[0105] ③ Improve communication efficiency: By adopting fiber optic communication technology, high-speed, high-bandwidth and low-latency data transmission can be achieved, thereby improving the overall communication efficiency of the system and reducing the probability of communication failures.

[0106] ④ Reduce maintenance costs: By implementing channel redundancy, system paralysis caused by single point of failure is reduced, thereby reducing system maintenance costs and downtime.

[0107] In summary, the remote four-remote information transmission-based automated power dispatching method provided in this embodiment effectively improves the reliability and stability of the system and reduces maintenance costs by adopting key technologies such as optical fiber communication technology, ring network topology, and channel redundancy.

[0108] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0109] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A remote four-remote information transmission-based automated power dispatching method, characterized in that, include: S10: Configure backup machines for several key devices. When any of the key devices fails, the corresponding backup machine automatically takes over the faulty key device to ensure the normal operation of the system. S20: Configure a dual-circuit power supply system for electrical equipment so that if one circuit fails, the other circuit continues to supply power to the electrical equipment. S30: Develop dual protection systems, one as the main protection system and the other as a backup protection system; when the main protection system fails or malfunctions, the backup protection system automatically switches to the main protection system to ensure the normal operation of the system; S40: Develop dual scheduling data network systems, one as the primary scheduling data network system and the other as a backup scheduling data network system; when the primary scheduling data network system fails or malfunctions, the backup scheduling data network system automatically switches to the primary scheduling data network system to ensure normal data transmission; S50: Establish a dual-channel communication system. When one channel fails, the other channel automatically takes over the communication task to ensure normal data transmission. S60: It adopts a ring network topology, so that when a node fails, data can continue to be transmitted through other nodes; S70: Establish a dual-system operation and management system, one responsible for the operation and maintenance of the main system, and the other responsible for the operation and maintenance of the backup system; when the main system fails or malfunctions, the backup system quickly takes over the operation tasks of the main system; S80: Establish dual data backup systems to perform real-time backup of important data; In step S30: In a dual protection system, the two systems employ independent hardware devices, sensors, actuators, and software systems. In step S30: When the main protection system fails or malfunctions, the automatic switching mechanism module detects the anomaly, determines the nature and severity of the fault, and decides whether to switch the system. The automatic switching mechanism module includes: The fault detection unit is used to immediately send a signal to the control system when a fault is detected in the power system; The fault diagnosis unit is used to diagnose faults after the control system receives a fault signal. The switching decision unit is used to make a switching decision based on the type and severity of the fault after the fault diagnosis is completed. The switching execution unit is used to automatically execute the switching operation after a switching decision is made; The decision to switch over based on the type and severity of the fault includes: If the fault is permanent, the backup equipment or system will be automatically switched to the working state. If the fault is temporary, the circuit breaker will automatically reclose.

2. The remote four-remote information transmission-based automated power dispatching method according to claim 1, characterized in that, The key equipment includes protection devices and / or switching devices.

3. The remote four-remote information transmission-based automated power dispatching method according to claim 1, characterized in that, The dual-channel communication system includes fiber optic communication and wireless communication.

4. The remote four-remote information transmission-based automated power dispatching method according to claim 1, characterized in that, In step S60: The ring network topology includes the remote protection action 101 channel and the remote protection action scheduling data network channel, which are redundant with each other.

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