阅读说明：本技术 一种聚光式太阳能发电站快速性能诊断装置 (Quick performance diagnosis device for concentrating solar power station ) 是由 聂雨 单绍荣 钟平 王安庆 王峰 黄伟 史燕红 宋金时 郑磊 张丁凡 于 2020-12-16 设计创作，主要内容包括：本发明提供了一种聚光式太阳能发电站快速性能诊断装置,其具有高精度、自动化和便携布置灵活的优点,可以快速的诊断聚光式太阳能电站的性能变化,从而判断其是否工作在正常状态,确保电站反应快捷准确,确保连接该电站的使用设备的正常运转。其包括物理测量部分、数据采集和传输部分、性能计算模块、诊断与输出部分,所述数据采集和传输部分包括有数据采集部分和数据传输部分,所述物理测量部分用于测量电站运行所对应的各项物理量,所述物理测量部分所获得的数据传输至所述数据采集部分,所述数据传输部分将所获得的数据传输到所述性能计算模块；所述性能计算模块利用计算机程序、将聚光式太阳能发电站的效率计算模型程序化。(The invention provides a rapid performance diagnosis device for a concentrating solar power station, which has the advantages of high precision, automation and flexible portable arrangement, and can rapidly diagnose the performance change of the concentrating solar power station so as to judge whether the concentrating solar power station works in a normal state, ensure rapid and accurate reaction of the power station and ensure the normal operation of using equipment connected with the power station. The system comprises a physical measurement part, a data acquisition and transmission part, a performance calculation module and a diagnosis and output part, wherein the data acquisition and transmission part comprises a data acquisition part and a data transmission part, the physical measurement part is used for measuring various physical quantities corresponding to the operation of a power station, the data acquired by the physical measurement part is transmitted to the data acquisition part, and the data transmission part transmits the acquired data to the performance calculation module; the performance calculation module programs an efficiency calculation model of the concentrating solar power plant using a computer program.)

1. A quick performance diagnostic device of a concentrating solar power station is characterized in that: the system comprises a physical measurement part, a data acquisition and transmission part, a performance calculation module and a diagnosis and output part, wherein the data acquisition and transmission part comprises a data acquisition part and a data transmission part, the physical measurement part is used for measuring various physical quantities corresponding to the operation of a power station, the data acquired by the physical measurement part is transmitted to the data acquisition part, and the data transmission part transmits the acquired data to the performance calculation module; the performance calculation module is used for programming an efficiency calculation model of the concentrating solar power station by using a computer program and calculating the photoelectric conversion efficiency of the concentrating solar power station in real time by combining the acquired measurement data; the diagnosis and output part is internally provided with a database of design efficiency values corresponding to the physical parameters in advance, receives the photoelectric conversion real-time efficiency calculated by the performance calculation module, compares the real-time efficiency value with the design efficiency values in the database and judges whether the performance of the power station is at a normal level.

2. The rapid performance diagnosis apparatus for a concentrating solar power plant according to claim 1, wherein: the physical measurement part consists of a solar radiation measurement unit, an environment temperature measurement unit, a relative humidity measurement unit, an atmospheric pressure measurement unit, a wind speed measurement unit and a generator power measurement unit, and each unit is used for measuring real-time corresponding physical quantity of a power station.

Technical Field

The invention relates to the technical field of solar power generation, in particular to a rapid performance diagnosis device for a concentrating solar power station.

Background

A light-gathering solar power station, which is also called as a photo-thermal power station and a CSP power station for short, is a power generation mode that an optical device is used for gathering solar radiation energy, the solar radiation energy is projected to a heat collection pipeline and a working medium in a heating pipe, heat is transferred by the working medium to heat circulating water to generate steam for pushing a steam turbine, and the steam turbine drives a generator to generate power.

The current light-concentrating solar power station is divided into a solar light-concentrating heat collecting system, an energy storage system and a steam power generation system, and a complete working day running state of the solar light-concentrating heat collecting system is that when the sun rises to reach the light-concentrating condition, the light-concentrating heat collecting system converts solar radiation energy into heat energy, the heat energy is collected and transmitted to the steam power generation system through the energy storage system to generate power, the light-concentrating heat collecting system stops working along with the falling of the sun, the energy storage system starts reverse running, the heat stored in the daytime is transmitted to the power generation system to continue generating power until the sun rises again, and therefore 24-hour uninterrupted power generation.

The input energy of the concentrating solar power station is solar energy, the output energy is electric energy, the efficiency of converting the solar energy into the electric energy reflects the performance of the concentrating solar power station, the concentrating solar power station is in the operation process, whether the operation of the concentrating solar power station is normal or not can not be directly judged in the prior art, whether the judgment is performed normally or not can only be performed through accumulated electric energy, the judgment is usually delayed, the quick response of the whole power station is influenced, and the normal operation of using equipment of the power station can be influenced.

Disclosure of Invention

In view of the above problems, the present invention provides a rapid performance diagnosis apparatus for a concentrating solar power station, which has the advantages of high precision, automation, portability, and flexible arrangement, and can rapidly diagnose the performance change of the concentrating solar power station, thereby determining whether the concentrating solar power station is working in a normal state, ensuring rapid and accurate reaction of the power station, and ensuring the normal operation of the equipment connected to the power station.

A quick performance diagnostic device of a concentrating solar power station is characterized in that: the system comprises a physical measurement part, a data acquisition and transmission part, a performance calculation module and a diagnosis and output part, wherein the data acquisition and transmission part comprises a data acquisition part and a data transmission part, the physical measurement part is used for measuring various physical quantities corresponding to the operation of a power station, the data acquired by the physical measurement part is transmitted to the data acquisition part, and the data transmission part transmits the acquired data to the performance calculation module; the performance calculation module is used for programming an efficiency calculation model of the concentrating solar power station by using a computer program and calculating the photoelectric conversion efficiency of the concentrating solar power station in real time by combining the acquired measurement data; the diagnosis and output part is internally provided with a database of design efficiency values corresponding to the physical parameters in advance, receives the photoelectric conversion real-time efficiency calculated by the performance calculation module, compares the real-time efficiency value with the design efficiency values in the database and judges whether the performance of the power station is at a normal level.

It is further characterized in that:

the physical measurement part consists of a solar radiation measurement unit, an environment temperature measurement unit, a relative humidity measurement unit, an atmospheric pressure measurement unit, a wind speed measurement unit and a generator power measurement unit, and each unit is used for measuring real-time corresponding physical quantity of a power station.

The real-time physical data of the power station are directly obtained through the physical measurement part, then the obtained data are transmitted to the data acquisition part, and the data transmission part transmits the obtained data to the performance calculation module; the performance calculation module is used for programming an efficiency calculation model of the concentrating solar power station by using a computer program and calculating the photoelectric conversion efficiency of the concentrating solar power station in real time by combining the acquired measurement data; the diagnosis and output part is internally provided with a database of design efficiency values corresponding to physical parameters in advance, the diagnosis and output part receives the photoelectric conversion real-time efficiency calculated by the performance calculation module, then the real-time efficiency values are compared with the design efficiency values in the database, whether the performance of the power station is at a normal level is judged, the diagnosis and output part has the advantages of high precision, automation and flexible portable arrangement, the performance change of the light-gathering solar power station can be quickly diagnosed, whether the diagnosis and output part works at a normal state is judged, the power station response is ensured to be quick and accurate, and the normal operation of the use equipment connected with the power station is ensured.

Detailed Description

A quick performance diagnostic device of a concentrating solar power station comprises: the system comprises a physical measurement part, a data acquisition and transmission part, a performance calculation module and a diagnosis and output part, wherein the data acquisition and transmission part comprises a data acquisition part and a data transmission part; the physical measurement part is used for measuring various physical quantities corresponding to the operation of the power station, the data obtained by the physical measurement part is transmitted to the data acquisition part, and the data transmission part transmits the obtained data to the performance calculation module; the performance calculation module is used for programming an efficiency calculation model of the concentrating solar power station by using a computer program and calculating the photoelectric conversion efficiency of the concentrating solar power station in real time by combining the acquired measurement data; the diagnosis and output part is internally provided with a database of the design efficiency value corresponding to the physical parameter in advance, receives the photoelectric conversion real-time efficiency calculated by the performance calculation module, compares the real-time efficiency value with the design efficiency value in the database and judges whether the power station performance is at a normal level.

The physical measurement part consists of a solar radiation measurement unit, an environment temperature measurement unit, a relative humidity measurement unit, an atmospheric pressure measurement unit, a wind speed measurement unit and a generator power measurement unit, and each unit is used for measuring real-time corresponding physical quantity of a power station.

Inside the computer program, the formula of the photoelectric conversion efficiency is as follows:

wherein eta is the thermal efficiency of the whole plant;

p is the output power of the generator;

DNI is the average direct solar radiation energy;

n is the number of focusing reflectors;

SCAA is the effective reflective area of a single mirror.

And by the following formula:

P_{design of}＝P*μ(DNI)*μ(T)*μ(AP)*μ(H)*μ(v)

And judging whether the output of the current generator power under the real-time environmental parameters reaches a design value.

Wherein: p is a real-time measured value of the power of the generator;

mu (DNI) is a correction coefficient of solar radiation intensity to generator power, and is obtained from a radiation intensity measurement and a radiation intensity correction curve;

mu (T) is a correction coefficient of the atmospheric temperature to the power of the generator, and is obtained from the atmospheric temperature measurement and the radiation intensity correction curve;

mu (AP) is a correction coefficient of atmospheric pressure to the power of the generator, and is obtained by an atmospheric pressure measurement and a radiation intensity correction curve;

mu (H) is a correction coefficient of relative humidity to the power of the generator, and is obtained from a relative humidity measurement and a radiation intensity correction curve;

mu (v) is a correction coefficient of wind speed to generator power, and is obtained by a wind speed measurement and a radiation intensity correction curve.

The working principle is as follows: the real-time physical data of the power station are directly obtained through a physical measurement part, then the obtained data are transmitted to a data acquisition part, and the data transmission part transmits the obtained data to a performance calculation module; the performance calculation module is used for programming an efficiency calculation model of the concentrating solar power station by using a computer program and calculating the photoelectric conversion efficiency of the concentrating solar power station in real time by combining the acquired measurement data; the diagnosis and output part is internally provided with a database of design efficiency values corresponding to physical parameters in advance, the diagnosis and output part receives the photoelectric conversion real-time efficiency calculated by the performance calculation module, then the real-time efficiency values are compared with the design efficiency values in the database, whether the performance of the power station is at a normal level is judged, the diagnosis and output part has the advantages of high precision, automation and flexible portable arrangement, the performance change of the light-gathering solar power station can be quickly diagnosed, whether the diagnosis and output part works at a normal state is judged, the power station response is ensured to be quick and accurate, and the normal operation of the use equipment connected with the power station is ensured.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.