阅读说明：本技术 风电机组发电量损失根因自动识别系统及其实现方法 (Automatic recognition system for generating capacity loss root of wind turbine generator and implementation method thereof ) 是由 郑智扬 唐晓萌 梁红星 刘刚 宋锐 杨玉贤 谢靖松 于 2021-08-16 设计创作，主要内容包括：一种风电机组发电量损失根因自动识别系统及其实现方法,涉及风电机组发电量损失分析技术领域,其能够在风电机组运行过程中,自动分析机组因电网限电、机组故障、机组检修、自身性能降低等多种原因而损失的发电量,并且能够自动分析性能损失根因,给出维护建议,进而有效提升机组发电量。所述风电机组发电量损失根因自动识别系统中,先通过分析机组状态数据,将机组进行划分,再基于机组理论功率曲线、风速和发电量数据分析出机组各项损失电量；再通过输入机组运行数据,自动分析计算并得出性能损失根因,再给出相关运维建议。(A wind turbine generating capacity loss root factor automatic identification system and an implementation method thereof relate to the technical field of wind turbine generating capacity loss analysis, and can automatically analyze the generating capacity of a wind turbine unit lost due to various reasons such as power grid electricity limitation, unit fault, unit maintenance, self performance reduction and the like in the running process of the wind turbine unit, automatically analyze the performance loss root factor, give a maintenance suggestion, and further effectively improve the generating capacity of the wind turbine unit. In the system for automatically identifying the generating capacity loss root cause of the wind turbine generator, the generator is divided by analyzing state data of the generator, and then each item of loss electric quantity of the generator is analyzed based on a theoretical power curve, wind speed and generating capacity data of the generator; and automatically analyzing and calculating by inputting unit operation data to obtain a performance loss root cause, and giving a related operation and maintenance suggestion.)

1. The utility model provides a wind turbine generator system generated energy loss root reason automatic identification system which characterized in that includes:

the device comprises a wind speed and direction sensor, a working condition measuring instrument, an angle sensor and a temperature sensor, wherein the wind speed and direction sensor, the angle sensor, the temperature sensor and the working condition measuring instrument are used for at least acquiring the measuring data of the following measuring points:

measuring point Extracting data State of the unit An original value; state of limited electricity An original value; wind speed An original value; wind direction An original value; active power An original value; electric energy production An original value; angle of wind An original value; nacelle position An original value; 1 degree of blade An original value; 2 degree of blade An original value; blade 3 degree An original value; impeller speed An original value; rotating speed of generator An original value; ambient temperature An original value;

the data storage module is used for establishing a measuring point index data storage function and finishing historical numerical control storage;

the analog-digital analysis module is used for classifying according to wind field, unit and model information, and analyzing the wind turbine unit by taking the production, operation and maintenance data of the wind turbine unit as input indexes, and the analysis module has the following functions of but not limited to: analyzing unit loss electric quantity, a unit actual power curve, wind resource and unit performance loss;

the visual interface module is used for carrying out single-machine performance analysis, unit comparison, full-field overview and operation and maintenance suggestion display;

and the network communication module is used for realizing data communication with external equipment through the Ethernet and the RS232/RS485 interface, and a communication protocol supports TCP/IP and Modbus.

2. The system for automatically identifying the root cause of the power generation loss of the wind turbine generator as claimed in claim 1, wherein the wind farm operation data measuring point comprises: the system comprises a unit state, a power limiting state, wind speed, wind direction, active power, generating capacity, wind angle, engine room position, blade 1 angle, blade 2 angle, blade 3 angle, impeller rotating speed, generator rotating speed and environment temperature, and is obtained from an SCADA (supervisory control and data acquisition) system, a wind power prediction system and an energy management system in a Modbus communication mode.

3. An implementation method of an automatic recognition system for the generation capacity loss root of a wind turbine generator is characterized by comprising the following steps:

installing a server of the wind turbine generating capacity loss root cause automatic identification system, and accessing measurement points of unit operation data, wind field wind resource data and scheduling electricity limiting data;

establishing a measuring point index database and finishing the storage function of historical data;

the method comprises the following steps of establishing a module analysis module with a wind turbine generator generating capacity loss root factor model, and having but not limited to the following functions: analyzing unit loss electric quantity, a unit actual power curve, wind resource and unit performance loss;

and visually displaying the generating capacity loss root of the wind turbine generator and providing an operation and maintenance suggestion report of a relevant model.

4. The method for realizing the wind turbine generator generating capacity loss root cause automatic identification system according to claim 3, characterized in that the generator is divided into standby equal wind, starting, grid connection, scheduling power limit, scheduling shutdown, fault shutdown and maintenance shutdown states by analyzing the state data of the generator, and each loss electric quantity of the generator is analyzed based on the theoretical power curve, the wind speed and the generating capacity data of the generator, wherein the loss electric quantity comprises fault loss electric quantity, scheduled maintenance loss electric quantity, performance loss electric quantity and scheduling power limit loss electric quantity;

and automatically analyzing and calculating and obtaining a performance loss root factor by inputting unit operation data including unit state, wind speed, wind direction, active power, generated energy, wind angle, engine room position, blade 1 angle, blade 2 angle, blade 3 angle, impeller rotating speed, generator rotating speed and environment temperature data, and then giving related operation and maintenance suggestions.

Technical Field

The invention relates to the technical field of analysis of the loss of the generated energy of a wind turbine generator, in particular to an automatic identification system of the root cause of the loss of the generated energy of the wind turbine generator and an implementation method thereof.

Background

During operation of a wind farm, the power generation and operation and maintenance costs are always of interest to the owner; in the early stage, because problems such as wind power technical level and manufacturing process, the unit fault rate is very high, how to effectively reduce the unit fault rate, and the promotion of the unit utilization rate and the generated energy become the focus of attention of most enterprises.

Along with the unit quality, the operation and maintenance level constantly promote, the fault rate reduces year by year, simultaneously along with the ageing and operation management improvement of wind-powered electricity generation field unit, increase wind-powered electricity generation field benefit and rely on reducing this mode of unit fault rate promotion generated energy and can not satisfy the demand simply, and through analysis unit loss electric quantity, improve the operation mode, and then promote the unit generated energy and receive the favor of wind-powered electricity generation field more and more.

Disclosure of Invention

The invention aims to provide an automatic identification system for the generating capacity loss root of a wind turbine generator and an implementation method thereof, which can automatically analyze the generating capacity loss of the wind turbine generator due to various reasons such as power grid electricity limitation, unit failure, unit maintenance, self performance reduction and the like in the running process of the wind turbine generator, can automatically analyze the performance loss root, and give a maintenance suggestion so as to effectively improve the generating capacity of the wind turbine generator.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a wind turbine generator system generated energy loss root reason automatic identification system, includes: the device comprises a wind speed and direction sensor, a working condition measuring instrument, an angle sensor and a temperature sensor, wherein the wind speed and direction sensor, the angle sensor, the temperature sensor and the working condition measuring instrument are used for at least acquiring the measuring data of the following measuring points:

；

the data storage module is used for establishing a measuring point index data storage function and finishing historical numerical control storage;

the analog-digital analysis module is used for classifying according to wind field, unit and model information, and analyzing the wind turbine unit by taking the production, operation and maintenance data of the wind turbine unit as input indexes, and the analysis module has the following functions of but not limited to: analyzing unit loss electric quantity, a unit actual power curve, wind resource and unit performance loss;

the visual interface module is used for carrying out single-machine performance analysis, unit comparison, full-field overview and operation and maintenance suggestion display;

and the network communication module is used for realizing data communication with external equipment through the Ethernet and the RS232/RS485 interface, and a communication protocol supports TCP/IP and Modbus.

Specifically, the wind field operation data measuring point comprises: the system comprises a unit state, a power limiting state, wind speed, wind direction, active power, generating capacity, wind angle, engine room position, blade 1 angle, blade 2 angle, blade 3 angle, impeller rotating speed, generator rotating speed and environment temperature, and is obtained from an SCADA (supervisory control and data acquisition) system, a wind power prediction system and an energy management system in a Modbus communication mode.

Compared with the prior art, the system for automatically identifying the generating capacity loss root cause of the wind turbine generator has the following advantages:

in the automatic identification system for the generating capacity loss root of the wind turbine generator, the wind turbine generator is combined with advanced artificial intelligence and big data technology, so that the intelligent and integral upgrade of wind power assets is realized; the system evaluates the operating state of the wind power plant based on historical and real-time SCADA data, and simultaneously acquires the comprehensive asset information in real time by connecting the assets of the wind turbine and operation, maintenance and technical personnel, thereby optimizing the operating performance of the unit; the system can automatically analyze the generated energy of the generator set lost due to various reasons such as power grid limit, generator set fault, generator set maintenance, self performance reduction and the like in the operation process of the generator set, can automatically analyze the performance loss root cause, and can give maintenance suggestions so as to effectively improve the generated energy of the generator set.

An implementation method of an automatic recognition system for the generating capacity loss root of a wind turbine generator comprises the following steps:

installing a server of the wind turbine generating capacity loss root cause automatic identification system, and accessing measurement points of unit operation data, wind field wind resource data and scheduling electricity limiting data;

establishing a measuring point index database and finishing the storage function of historical data;

the method comprises the following steps of establishing a module analysis module with a wind turbine generator generating capacity loss root factor model, and having but not limited to the following functions: analyzing unit loss electric quantity, a unit actual power curve, wind resource and unit performance loss;

and visually displaying the generating capacity loss root of the wind turbine generator and providing an operation and maintenance suggestion report of a relevant model.

Specifically, the method comprises the steps of firstly, analyzing state data of a unit, dividing the unit into standby equal wind, starting, grid connection, scheduling power limit, scheduling shutdown, fault shutdown and maintenance shutdown states, and analyzing various loss electric quantities of the unit based on theoretical power curve, wind speed and generated energy data of the unit, wherein the loss electric quantities comprise fault loss electric quantity, planned maintenance loss electric quantity, performance loss electric quantity and scheduling power limit loss electric quantity;

and automatically analyzing and calculating and obtaining a performance loss root factor by inputting unit operation data including unit state, wind speed, wind direction, active power, generated energy, wind angle, engine room position, blade 1 angle, blade 2 angle, blade 3 angle, impeller rotating speed, generator rotating speed and environment temperature data, and then giving related operation and maintenance suggestions.

The implementation method of the system for automatically identifying the generation capacity loss root of the wind turbine generator is the same as the advantages of the system for automatically identifying the generation capacity loss root of the wind turbine generator relative to the prior art, and is not repeated herein.

Drawings

Fig. 1 is a structural framework diagram of an automatic recognition system for the root cause of loss of generated energy of a wind turbine generator according to an embodiment of the present invention;

fig. 2 is a schematic flow chart of an implementation method of an automatic identification system for a loss root of a power generation amount of a wind turbine generator according to an embodiment of the present invention;

fig. 3 is a schematic display diagram of analysis of performance of a single machine in the automatic recognition system of the power generation amount loss factor of the wind turbine generator according to the embodiment of the present invention;

fig. 4 is a schematic display diagram of a comparison of units in the system for automatically identifying the generation loss root cause of the wind turbine according to the embodiment of the present invention;

fig. 5 is a schematic display diagram of a full overview in the system for automatically identifying the root cause of the loss of the generated energy of the wind turbine generator according to the embodiment of the present invention.

Reference numerals:

11-wind speed and direction sensor; 12-a working condition measuring instrument; 13-an angle sensor; 14-a temperature sensor; 2-a data storage module; 3-a modulus analysis module; 4-a visual interface module; 5-network communication module.

Detailed Description

For convenience of understanding, the automatic identification system for the loss root cause of the generated energy of the wind turbine generator and the implementation method thereof provided by the embodiment of the invention are described in detail below with reference to the drawings in the specification.

An embodiment of the present invention provides an automatic identification system for a power generation amount loss root of a wind turbine, as shown in fig. 1, including: the wind speed and wind direction sensor 11, the working condition measuring instrument 12, the angle sensor 13 and the temperature sensor 14 are used for acquiring at least the measurement data of the following measuring points:

measuring point	Extracting data
		State of the unit	An original value;
state of limited electricity	An original value;
		wind speed	An original value;
wind direction	An original value;
		active power	An original value;
electric energy production	An original value;
		angle of wind	An original value;
nacelle position	An original value;
		1 degree of blade	An original value;
2 degree of blade	An original value;
		blade 3 degree	An original value;
impeller speed	An original value;
		rotating speed of generator	An original value;
ambient temperature	An original value;

the data storage module 2 is used for establishing a measuring point index data storage function and finishing historical numerical control storage;

the analog-digital analysis module 3 is used for classifying according to wind field, unit and model information, and analyzing the wind turbine unit by using the production and operation and maintenance data of the wind turbine unit as input indexes, wherein the analysis model has the following functions: analyzing unit loss electric quantity, a unit actual power curve, wind resource and unit performance loss;

the visual interface module 4 is used for carrying out single-machine performance analysis, unit comparison, full overview and operation and maintenance suggestion display on the visual interface module 4;

and the network communication module 5 is used for realizing data communication with external equipment through an Ethernet and an RS232/RS485 interface, and a communication protocol supports TCP/IP and Modbus.

Compared with the prior art, the system for automatically identifying the generating capacity loss root cause of the wind turbine generator has the following advantages:

in the system for automatically identifying the generating capacity loss root cause of the wind turbine generator, the wind turbine generator is combined with advanced artificial intelligence and big data technology, so that the intelligent and integral upgrade of wind power assets is realized; the system evaluates the operating state of the wind power plant based on historical and real-time SCADA data, and simultaneously acquires the comprehensive asset information in real time by connecting the assets of the wind turbine and operation, maintenance and technical personnel, thereby optimizing the operating performance of the unit; the wind turbine generator generation capacity loss automatic identification system provided by the embodiment of the invention can automatically analyze the generation capacity of the generator set, which is lost due to various reasons such as power grid power limitation, generator set faults, generator set maintenance, self performance reduction and the like, and can automatically analyze the performance loss root cause, so that a maintenance suggestion is given, and the generation capacity of the generator set is effectively improved.

Specifically, the wind farm operational data measuring point may include: the system comprises a unit state, a power limiting state, wind speed, wind direction, active power, generating capacity, wind angle, engine room position, blade 1 angle, blade 2 angle, blade 3 angle, impeller rotating speed, generator rotating speed and environment temperature, and is obtained from an SCADA (supervisory control and data acquisition) system, a wind power prediction system and an energy management system in a Modbus communication mode.

As shown in fig. 2, an embodiment of the present invention further provides an implementation method of an automatic recognition system for a loss root of a power generation amount of a wind turbine, including the following steps:

step S1, installing a server of the wind turbine generator generating capacity loss root factor automatic identification system, and accessing measurement points of the generator operation data, the wind field wind resource data and the dispatching electricity limiting data;

step S2, establishing a measuring point index database and finishing the storage function of historical data;

step S3, establishing a module analysis module with a wind turbine generator generating capacity loss root factor model, and having but not limited to the following functions: analyzing unit loss electric quantity, a unit actual power curve, wind resource and unit performance loss;

and S4, visually displaying the generating capacity loss root of the wind turbine generator and providing an operation and maintenance suggestion report of a relevant model.

Specifically, the method comprises the steps of firstly, analyzing state data of a unit, dividing the unit into standby equal wind, starting, grid connection, scheduling power limit, scheduling shutdown, fault shutdown and maintenance shutdown states, and analyzing various loss electric quantities of the unit based on theoretical power curve, wind speed and generated energy data of the unit, wherein the loss electric quantities comprise fault loss electric quantity, planned maintenance loss electric quantity, performance loss electric quantity and scheduling power limit loss electric quantity;

and automatically analyzing and calculating and obtaining a performance loss root factor by inputting unit operation data including unit state, wind speed, wind direction, active power, generated energy, wind angle, engine room position, blade 1 angle, blade 2 angle, blade 3 angle, impeller rotating speed, generator rotating speed and environment temperature data, and then giving related operation and maintenance suggestions.

In summary, the system for automatically identifying the generating capacity loss root of the wind turbine generator and the implementation method thereof provided by the embodiment of the invention can automatically analyze the generating capacity of the wind turbine generator, which is lost due to various reasons such as power grid electricity limitation, unit failure, unit maintenance, performance reduction and the like, in the operation process of the wind turbine generator, and can automatically analyze the performance loss root, provide a maintenance suggestion, and further effectively improve the generating capacity of the wind turbine generator.

It should be added here that the scada (supervisory Control And Data acquisition) system is a Data acquisition And monitoring Control system.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.