Electrical integrated control system for thermal power plant

Abstract

The invention discloses an electrical integrated control system of a thermal power plant, and belongs to the technical field of electrical control of the thermal power plant. A data processing module; a control decision module; an execution module; a man-machine interaction module; according to the invention, the data acquisition module acquires the multi-dimensional operation data of each device in the thermal power plant electrical system in real time, the data processing module processes and analyzes the data, the control decision module combines an advanced control algorithm and a fault diagnosis technology to generate a control instruction, and the execution module accurately controls the devices. The man-machine interaction module realizes man-machine interaction, and the energy management module performs optimization management on energy consumption. The electric system of the whole thermal power plant realizes integrated control, the cooperative work capability and the control efficiency of the system are improved, equipment faults can be timely and accurately diagnosed and processed, the reliability and the stability of the system are improved, and meanwhile, efficient utilization and saving of energy are realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrical control of thermal power plants, and in particular relates to an electrical integrated control system for thermal power plants. Background Art

[0002] The stable operation of the electrical system is crucial for the operation of a thermal power plant. Existing electrical control systems in thermal power plants often suffer from the relative independence of various subsystems, such as generator control, transformer control, and distribution system control. This limited information sharing and collaborative working capabilities among these subsystems results in low overall control efficiency, making it difficult to achieve comprehensive and precise control of the power plant's electrical system.

[0003] Existing control systems rely mainly on single monitoring indicators and fixed logical judgments for fault diagnosis and processing. Complex fault situations are often not located and resolved in a timely and accurate manner, affecting the normal operation and economic benefits of thermal power plants. In terms of energy management, existing control systems lack optimized control over the overall energy consumption of the electrical system and are unable to dynamically adjust control strategies based on actual operating conditions to achieve efficient energy utilization. Summary of the Invention

[0004] The purpose of the present invention is to solve the above-mentioned problems and to propose an electrical integrated control system for a thermal power plant.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: an electrical integrated control system for a thermal power plant, comprising:

[0006] Data acquisition module, which is used to collect operating data of each device in the electrical system of the thermal power plant;

[0007] a data processing module, which is electrically connected to the data acquisition module and processes and analyzes the collected data;

[0008] a control decision module electrically connected to the data processing module, and generating corresponding control instructions based on the equipment operation data and deviation values ​​provided by the data processing module and in combination with the operation objectives and control strategies of the electrical system of the thermal power plant;

[0009] an execution module electrically connected to the control decision module, and configured to receive control instructions generated by the control decision module and perform control operations on corresponding devices;

[0010] A human-computer interaction module is electrically connected to the control decision module, and the human-computer interaction module is used to realize the interaction between the operator and the control system.

[0011] As a further description of the above technical solution:

[0012] The control decision module is connected to the fault diagnosis submodule, and the fault diagnosis submodule is used to diagnose and locate equipment faults in the electrical system of the thermal power plant.

[0013] As a further description of the above technical solution:

[0014] An energy management module is connected to the data processing module and the control decision module, and is used to monitor and manage the energy consumption of the electrical system of the thermal power plant.

[0015] As a further description of the above technical solution:

[0016] The data collected by the data acquisition module include parameters such as voltage, current, power, temperature, vibration, etc. of equipment such as generators, transformers, circuit breakers, and reactors.

[0017] As a further description of the above technical solution:

[0018] The data acquisition module is connected to a wireless transmission unit, and the wireless transmission unit is used to transmit the collected data to the data processing module through a wireless communication network.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] In this invention, a data acquisition module collects multi-dimensional operational data from each device in a thermal power plant's electrical system in real time. A data processing module processes and analyzes the data. A control decision module generates control instructions using advanced control algorithms and fault diagnosis techniques. An execution module precisely controls the devices. A human-computer interaction module implements human-computer interaction. Meanwhile, an energy management module optimizes energy consumption. This enables integrated control of the entire thermal power plant's electrical system, improving the system's collaborative working capabilities and control efficiency. It enables timely and accurate diagnosis and resolution of equipment faults, enhancing system reliability and stability, and achieving efficient energy utilization and conservation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a control block diagram of an electrical integrated control system for a thermal power plant.

[0022] Legend:

[0023] 1. Data acquisition module; 2. Data processing module; 3. Control decision module; 4. Execution module; 5. Human-computer interaction module; 6. Fault diagnosis submodule; 7. Energy management module; 8. Wireless transmission unit. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] See also Figure 1 The present invention provides a technical solution: an electrical integrated control system for a thermal power plant, comprising:

[0026] Data acquisition module 1, which is used to collect operating data of various devices in the electrical system of the thermal power plant;

[0027] Specifically, the operating data of each device in the electrical system of a thermal power plant includes parameters such as voltage, current, power, temperature, and vibration of devices such as generators, transformers, circuit breakers, and reactors. This module uses multiple sensors, such as voltage sensors, current sensors, temperature sensors, and vibration sensors, which are installed on the corresponding devices to obtain real-time operating status information of the devices.

[0028] A data processing module 2 is electrically connected to the data acquisition module 1 and processes and analyzes the collected data;

[0029] Specifically, the data is first pre-processed by filtering, noise reduction, etc. to remove interference signals in the data and improve the accuracy and reliability of the data. Feature extraction is then performed on the pre-processed data. For example, the frequency characteristics and amplitude characteristics of the signal are extracted through methods such as Fourier transform to facilitate subsequent analysis and judgment. At the same time, the data processing module 2 will also compare the processed data with the preset standard data to calculate the deviation value of the equipment operation parameters.

[0030] A control decision module 3 is electrically connected to the data processing module 2, and generates corresponding control instructions based on the equipment operation data and deviation values ​​provided by the data processing module 2, combined with the operation objectives and control strategies of the thermal power plant electrical system;

[0031] Specifically, the control decision module 3 uses advanced control algorithms, such as fuzzy control algorithms and neural network control algorithms, and is capable of making intelligent decisions based on complex operating conditions. For example, when it detects that the output power of the generator fluctuates significantly, the control decision module 3 will analyze the cause of the fluctuation based on historical data and real-time monitoring data, and generate control instructions to adjust the generator excitation current or prime mover power to stabilize the generator output power.

[0032] An execution module 4 is electrically connected to the control decision module 3 and is used to receive the control instructions generated by the control decision module 3 and perform control operations on the corresponding devices;

[0033] Specifically, the execution module 4 includes various execution mechanisms, such as the operating mechanism of the circuit breaker, the regulating mechanism of the reactor, the excitation regulator of the generator, etc., which can accurately execute the control instructions and realize real-time control of the equipment;

[0034] A human-computer interaction module 5, which is electrically connected to the control decision module 3 and is used to realize interaction between the operator and the control system;

[0035] Specifically, the operator can view the operating status, operating data and fault information of each device in the electrical system of the thermal power plant in real time through the human-computer interaction module 5. The operator can also input control parameters and control instructions through the human-computer interaction module 5 to set and adjust the control system. The human-computer interaction module 5 adopts an intuitive and user-friendly interface design to facilitate the operator's use.

[0036] The control decision module 3 is connected to the fault diagnosis submodule 6, which is used to diagnose and locate equipment faults in the electrical system of the thermal power plant. The fault diagnosis submodule 6 analyzes abnormal changes in equipment operation data and combines fault characteristics and diagnostic rules in the fault knowledge base to quickly and accurately determine whether the equipment has a fault, the type and location of the fault, and promptly issue a fault alarm signal.

[0037] An energy management module 7, which is connected to the data processing module 2 and the control and decision module 3, and is used to monitor and manage the energy consumption of the electrical system of the thermal power plant. The energy management module 7 analyzes the energy utilization efficiency of the electrical system based on the collected equipment operation data and energy consumption data, formulates a reasonable energy consumption plan, and adjusts the operating status of the equipment through the control and decision module 3 to achieve optimal utilization and conservation of energy;

[0038] The data collected by the data acquisition module 1 includes parameters such as voltage, current, power, temperature, vibration, etc. of equipment such as generators, transformers, circuit breakers, and reactors;

[0039] The data acquisition module 1 is connected to the wireless transmission unit 8, which is used to transmit the collected data to the data processing module 2 through a wireless communication network, thereby improving the flexibility and convenience of data transmission and reducing the problems of complex wiring and difficult maintenance caused by wired transmission.

[0040] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An integrated electrical control system for a thermal power plant, characterized by: include: A data acquisition module (1) for collecting operating data of various devices in the electrical system of a thermal power plant; a data processing module (2), which is electrically connected to the data acquisition module (1), and the data processing module (2) processes and analyzes the collected data; a control decision module (3) electrically connected to the data processing module (2), and generating corresponding control instructions based on the equipment operation data and deviation value provided by the data processing module (2) and in combination with the operation target and control strategy of the electrical system of the thermal power plant; an execution module (4), which is electrically connected to the control decision module (3), and is used to receive the control instructions generated by the control decision module (3) and perform control operations on corresponding devices; A human-machine interaction module (5) is electrically connected to the control decision module (3), and the human-machine interaction module (5) is used to realize interaction between an operator and a control system.

2. The electrical integrated control system of a thermal power plant according to claim 1, characterized in that: The control decision module (3) is connected to a fault diagnosis submodule (6), and the fault diagnosis submodule (6) is used to diagnose and locate equipment faults in the electrical system of a thermal power plant.

3. The integrated electrical control system for a thermal power plant according to claim 1, characterized in that: An energy management module (7) is connected to the data processing module (2) and the control decision module (3), and the energy management module (7) is used to monitor and manage the energy consumption of the electrical system of the thermal power plant.

4. The integrated electrical control system for a thermal power plant according to claim 1, characterized in that: The data collected by the data collection module (1) include parameters such as voltage, current, power, temperature, vibration, etc. of equipment such as generators, transformers, circuit breakers, and reactors.

5. The integrated electrical control system for a thermal power plant according to claim 1, characterized in that: The data acquisition module (1) is connected to a wireless transmission unit (8), and the wireless transmission unit (8) is used to transmit the collected data to the data processing module (2) via a wireless communication network.

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