CN101799464B - Device and method for detecting air density - Google Patents

Device and method for detecting air density Download PDF

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CN101799464B
CN101799464B CN 201010148701 CN201010148701A CN101799464B CN 101799464 B CN101799464 B CN 101799464B CN 201010148701 CN201010148701 CN 201010148701 CN 201010148701 A CN201010148701 A CN 201010148701A CN 101799464 B CN101799464 B CN 101799464B
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signal
temperature
humidity
air density
pressure
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CN101799464A (en )
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曾赣生
余铁辉
翁艳
沙友涛
孙启涛
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三一电气有限责任公司
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Abstract

本发明实施例提供一种空气密度检测装置和方法,该装置包括:对压力进行实时监测的压力传感器、对温度进行实时监测的温度传感器、对湿度进行实时监测的湿度传感器,还包括压力信号采集模块、温度信号采集模块和湿度信号采集模块,所述压力信号采集模块、温度信号采集模块和湿度信号采集模块分别用于定期同步从压力传感器、温度传感器和湿度传感器采集压力信号、温度信号和湿度信号,还包括接收所述压力信号采集模块、温度信号采集模块和湿度信号采集模块分别采集的压力信号、温度信号和湿度信号,并根据空气密度与压力、温度和湿度的关系计算空气密度的空气密度计算模块。 Example embodiments provide an air density detection apparatus and method of the present invention, the apparatus comprising: a pressure sensor monitoring the pressure in real time, real-time monitoring of the temperature of a temperature sensor, humidity real-time monitoring of the humidity sensor, further comprising a pressure signal acquisition module, the temperature and humidity signal acquisition module signal acquisition module, the pressure signal acquisition module, a temperature and humidity signal acquisition module for signal acquisition module are collected periodically synchronizing signal pressure from the pressure sensor, a temperature sensor and a humidity sensor, a temperature and humidity signals signal, further comprising receiving the pressure signal acquisition module, a pressure signal from the temperature signal and humidity signal acquisition module acquisition module were collected, the temperature signal and humidity signal, and calculates the air density based on the relationship of air density and air pressure, temperature and humidity density calculation module. 通过本发明是实施例可以提供空气密度检测的实时性。 By the present invention embodiment can provide real-time detection of the air density.

Description

一种空气密度检测装置和空气密度检测方法 An air density of the air density detecting means and the detection method

技术领域 FIELD

[0001] 本发明属于风能设备领域,尤其涉及一种空气密度检测装置和空气密度检测方法。 [0001] The present invention belongs to the field of wind energy apparatus, and particularly to an air density of the air density detecting means and the detection method.

背景技术 Background technique

[0002] 风能是一种清洁的可再生资源,作为风能利用的主要形式,风力发电是目前技术最成熟也最具开发条件和商业化发展前景的可再生能源发电方式之一。 [0002] Wind power is a clean and renewable resource, as the main form of wind energy, wind power is one of the renewable energy power generation technology is currently the most mature and the most development conditions and prospects for commercial development. 风电设备在将风能转换为电能的过程中,不仅仅依赖于风速的变化,还紧密依赖于空气密度的变化。 Converting wind power equipment in the wind energy into electrical energy in the process, depends not only on changes in wind speed, but also closely dependent on the change in air density. 因此,在风场中对空气密度进行实时检测,并根据检测到的实时空气密度信号对风能设备的控制系统进行修正就显得尤为重要。 Thus, real-time detection of the air density in the wind farm, and the detected real-time control system of air density signal corrected in accordance with a wind power plant is particularly important.

[0003]目前,空气密度的检测方法最常用的是浮力法和温、湿、压法。 [0003] Currently, air density detection method most commonly used buoyancy and temperature, humidity, pressure method. 其中,浮力法是一种抽空玻璃瓶比较称重的方法,该方法能够较为准确地测量空气的密度,但其测量装置成本较高,测试过程也较为复杂,使其难以应用在常规测试中。 Wherein the method is an evacuated glass buoyancy comparing weighing method capable of more accurately measuring the density of the air, but its high cost measuring apparatus, the test process is more complex, making it difficult to apply routine testing. 而温、湿、压法是利用测量空气的温度、湿度和压力,通过查表或计算得出空气密度的方法,这种方法大都采用温度、湿度和压力参数进行分散测量、人工计算得出空气密度的方式,所以采用该方法的测量过程十分繁琐,而且由于温度、湿度和压力参数进行分散测量,难以满足风场对空气密度实时检测的要求。 And temperature, humidity, air pressure measurement method is the use of temperature, humidity and pressure, air density obtained by the method of look-up table or calculation, this method is mostly used as temperature, humidity and pressure parameters of the scattering measurement, artificial air calculated density manner, the measurement process using this method is cumbersome, and since the temperature, humidity and pressure parameters of the scattering measurement, it is difficult to meet the requirements of the wind real-time detection of the air density. 另外现有的空气密度检测装置难以适应风场恶劣的气候环境条件。 Further conventional air density detecting means is difficult to adapt wind harsh climate conditions.

发明内容 SUMMARY

[0004] 有鉴于此,本发明的目的在于提供一种空气密度检测装置和空气密度检测方法,能够解决现有技术中获得空气密度的实时性不强和无法应用于风场的问题。 [0004] In view of this, an object of the present invention is to provide an air density and air density detecting means detecting method, the prior art can be solved to obtain the air density is not strong in real time and the problem can not be applied to a wind farm.

[0005] 为实现上述目的,本发明实施例提供一种空气密度检测装置,包括:对压力进行实时监测的压力传感器、对温度进行实时监测的温度传感器、对湿度进行实时监测的湿度传感器,还包括压力信号采集模块、温度信号采集模块和湿度信号采集模块,所述压力信号采集模块、温度信号采集模块和湿度信号采集模块分别用于定期同步从压力传感器、温度传感器和湿度传感器采集压力信号、温度信号和湿度信号,还包括接收所述压力信号采集模块、温度信号采集模块和湿度信号采集模块分别采集的压力信号、温度信号和湿度信号,并根据空气密度与压力、温度和湿度的关系计算空气密度的空气密度计算模块。 [0005] To achieve the above object, embodiments of the present invention to provide an air density detecting device, comprising: a pressure sensor for real-time monitoring of pressure, temperature sensors for real-time monitoring of temperature, humidity real-time monitoring of the humidity sensor, but also signal acquisition module comprises pressure, temperature and humidity signal acquisition module signal acquisition module, the pressure signal acquisition module, a temperature and humidity signal acquisition module for signal acquisition module are collected periodically synchronizing signal pressure from the pressure sensor, a temperature sensor and a humidity sensor, temperature signal and humidity signal, further comprising receiving the pressure signal acquisition module, a pressure signal from the temperature signal and humidity signal acquisition module acquisition module were collected, the temperature signal and humidity signal, and the relationship between air density calculated from the pressure, temperature and humidity air density of the air density computation module.

[0006] 优选地,信号输出模块,用于将包含所述空气密度计算模块计算的空气密度的信号输出。 [0006] Preferably, the signal output means for outputting a signal comprising said module calculates the air density of the air density calculated.

[0007] 优选地,所述信号输出模块还用于将分别包含用于计算空气密度信号的压力、温度和湿度的信号与包含该空气密度的信号同步输出。 [0007] Preferably, the signal output module is further configured to calculate the air density, respectively, comprising a pressure signal, temperature signal and humidity signal and the air including the sync output density.

[0008] 优选地,所述装置还包括与所述温度信号采集模块相连的加热系统和空气密度计算模块,所述加热系统用于当温度信号采集模块采集的温度信号中包含的温度低于预定的阈值时,对所述空气密度检测装置进行加热,并将加热过程的温度变化量发送至所述空气密度计算模块,所述空气密度计算模块还用于将从温度信号采集模块接收的温度信号进行修正,所述修正包括减小所述接收的温度信号中包含的温度值,并且减小量等于所述空气密度计算模块接收的加热系统加热过程的温度变化量。 [0008] Preferably, the apparatus further comprises a heating system and an air density calculating module and the temperature signal acquisition module coupled to the temperature signal of the temperature when the temperature of a system for signal acquisition module included in the heating below a predetermined when the threshold value, the density detecting means for heating air, temperature variation and sent to the heating process air density calculating module, the module is further for calculating air density from the temperature of the temperature signal received by the signal acquisition module correction, the correction value of the temperature comprises a temperature decrease of the signal contained in the received, and to reduce an amount equal to the amount of change in air density calculating the temperature of the heating system of the heating process the received module.

[0009] 优选地,所述装置还包括设置在外部的外部防尘系统。 [0009] Preferably, the apparatus further comprises a dust disposed outside the external system. 这样可以使得空气密度检测装置能够适用在风场等风沙较大的地区。 This means that the density of the air can be applied in the detection area larger wind like sand.

[0010] 另一方面,本发明实施例还提供一种空气密度检测方法,包括: [0010] On the other hand, embodiments of the present invention further provides a method for detecting the air density, comprising:

[0011] 通过压力传感器对压力进行实时监测,通过温度传感器对温度进行实时监测,通过湿度传感器对湿度进行实时监测; [0011] by a pressure sensor monitoring the pressure in real time, real-time monitoring of the temperature by the temperature sensors, real-time monitoring of the humidity by the humidity sensor;

[0012] 压力信号采集模块、温度信号采集模块和湿度传感器定期同步分别从压力传感器、温度传感器和湿度传感器采集压力信号、温度信号和湿度信号; [0012] The signal acquisition module pressure, temperature and humidity sensors signal acquisition module periodically synchronize a pressure signal, temperature signal and humidity signal are acquired from the pressure sensor, a temperature sensor and a humidity sensor;

[0013]空气密度计算模块接收压力信号采集模块、温度信号采集模块和湿度信号采集模块分别采集的压力信号、温度信号和湿度信号,并根据空气密度与压力、温度和湿度的关系,计算空气密度。 [0013] the air density calculating module receives a pressure signal acquisition module, pressure signal, temperature signal and humidity signal of the temperature signal acquisition module and humidity signal acquisition module were collected, and based on the relationship between air density and pressure, temperature and humidity, calculate the air density .

[0014] 优选地,该方法还包括:通过信号输出模块将包含所述空气密度计算模块计算的空气密度的信号输出。 [0014] Preferably, the method further comprising: signal output module outputs the signal including the air density calculation module calculates the air density.

[0015] 优选地,该方法还包括:将分别包含用于计算空气密度信号的压力、温度和湿度的信号与包含该空气密度的信号同步输出。 [0015] Preferably, the method further comprising: respectively for calculating air density signal comprising pressure, temperature and humidity signal and a signal including the synchronization output of the air density.

[0016] 优选地,该方法还包括:当温度采集模块采集的温度信号中包含的温度低于预定的阈值时,通过加热系统对空气密度检测装置进行加热;并将加热过程的温度变化量发送至所述空气密度计算模块;所述空气密度计算模块在计算空气密度之前,将从温度信号采集模块接收的温度信号进行修正,所述修正包括减小所述接收的温度信号中包含的温度值,并且减小量等于所述空气密度计算模块接收的加热系统加热过程的温度变化量。 [0016] Preferably, the method further comprising: when the temperature signal of the temperature acquisition module contained below a predetermined threshold value, the air is heated by the heating system density detecting means; heating process and the temperature variation of the transmission to the air density calculating module; module calculates the air density before calculating air density, the temperature signal from the temperature signal acquisition module receives corrected, the correction value of the temperature comprises a temperature decrease of the received signal included in and to reduce an amount equal to the amount of change in air density calculating the temperature of the heating system of the heating process module receives. 这样,可以使空气密度检测装置能够进一步适应各种恶劣的温度环境。 In this way, the air density detecting means is further adapted to harsh temperature environment.

[0017] 由于本发明实施例提供的空气密度检测方法和装置在进行空气密度检测的过程中,各个传感器是实时进行监测的,而每个信号采集模块从对应的传感器采集信号也是同步的,这就使得获取的压力信号、温度信号和湿度信号也是同步的,从而使得计算空气密度的实时性也得到了提高。 [0017] Since the air density detecting method and apparatus according to an embodiment of the present invention the process is performed in air density detected, each sensor is monitored in real time, and each of the signal acquisition module is synchronized with a signal from the corresponding sensor, which it makes the acquired pressure signal, temperature signal and humidity signal are synchronized so that the real time to calculate the air density is also improved.

附图说明 BRIEF DESCRIPTION

[0018] 为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。 [0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, briefly describes the accompanying drawings required for describing the embodiments used in the following embodiments will be apparent in the following description of the drawings Some embodiments of the present invention are embodiment, those of ordinary skill in the art is concerned, without creative efforts, can derive from these drawings other drawings.

[0019] 图1是本发明实施例一提供的一种空气密度检测装置的示意图; [0019] FIG. 1 is a schematic view of an air density detecting apparatus according to a first embodiment of the present invention;

[0020] 图2是本发明实施例二提供的一种空气密度检测方法的示意图。 [0020] FIG. 2 is a schematic diagram of a method for detecting the air density according to a second embodiment of the present invention.

具体实施方式 detailed description

[0021] 为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。 [0021] In order that the invention object, technical solutions, and advantages of the embodiments more clearly, the following the present invention in the accompanying drawings, technical solutions of embodiments of the present invention are clearly and completely described, obviously, the described the embodiment is an embodiment of the present invention is a part, but not all embodiments. 基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。 Based on the embodiments of the present invention, those of ordinary skill in the art to make all other embodiments without creative work obtained by, it falls within the scope of the present invention.

[0022] 实施例一 [0022] Example a

[0023] 图1示出了本发明实施例一提供的一种空气密度检测装置,该检测装置包括三个传感器和对应的信号采集模块,具体地,包括:压力传感器101、温度传感器102和湿度传感器103,以及分别与三个传感器相连的压力信号采集模块104、温度信号采集模块105和湿度信号采集模块106。 [0023] FIG 1 illustrates the present invention, an air density detecting apparatus according to a first embodiment, the detecting means comprises three sensors and a corresponding signal acquisition module, in particular, comprising: a pressure sensor 101, temperature sensor 102 and humidity sensor 103, a signal acquisition module and a pressure sensor respectively connected to three 104, temperature signal and humidity signal acquisition module 105 and collection module 106.

[0024] 压力传感器101用于对压力进行实时监测,例如对风场中的压力进行实时的监测,温度传感器102用于对温度进行实时监测,例如对风场中的温度进行实时监测,湿度传感器103用于对湿度进行实时监测。 [0024] The pressure sensor 101 for real-time monitoring of the pressure, for example, wind pressure in real-time monitoring, a temperature sensor 102 for monitoring the temperature in real time, for example, the temperature in the wind farm real-time monitoring, a humidity sensor humidity 103 for real-time monitoring. 压力信号采集模块104用于从压力传感器101定期采集压力信号,温度信号采集模块105用于从温度传感器102定期采集温度信号,湿度信号采集模块106用于从湿度传感器103定期采集湿度信号,并且压力信号采集模块104、温度信号采集模块105和湿度信号采集模块106虽然是从各自对应的传感器定期采集信号,但是在每次采集信号时,压力信号采集模块104、温度信号采集模块105和湿度信号采集模块106都是同步的,由于各个传感器是实时进行监测的,而每个信号采集模块从对应的传感器采集信号又是同步的,这就使得获取的压力信号、温度信号和湿度信号也是同步的,为进行空气密度的实时检测提供了数据源上的保证。 104 for collecting the pressure signal from the pressure sensor module 101 periodically acquired pressure signal, the temperature signal acquisition module 105 from the temperature sensor 102 the temperature signal periodically collected, humidity signal acquisition module 106 for collecting moisture from the humidity sensor 103 signals periodically, and the pressure signal acquisition module 104, temperature signal and humidity signal acquisition module 105, although the acquisition module 106 corresponding to each sensor signal acquisition periodically, but at each acquisition signal, the pressure signal acquisition module 104, acquisition module 105 and a temperature signal and humidity signal acquisition module 106 are synchronized, since each sensor is monitored in real time, and each signal from the signal acquisition module and corresponding sensors are synchronized, which makes the pressure signal, temperature signal and humidity signal synchronization is acquired, provide a guarantee on the data source for real-time detection of the air density.

[0025] 另外,本发明实施例中空气密度检测装置还包括空气密度计算模块107。 [0025] Further, embodiments of the present invention the air density detecting means further embodiment includes an air density calculating module 107. 空气密度计算模块107与压力信号采集模块104、温度信号采集模块105和湿度信号采集模块106相连,接收压力信号采集模块104、温度信号采集模块105和湿度信号采集模块106同步采集的压力信号、温度信号和湿度信号,根据空气密度与压力、温度和湿度的关系,利用采集到的压力信号、温度信号和湿度信号中分别包含的压力、温度和湿度计算空气密度。 Air density calculating module 107 and the pressure signal acquisition module 104, a temperature signal acquisition module 105 and humidity signal acquisition module is connected to 106, receives a pressure signal acquisition module 104, a temperature signal acquisition module 105 and humidity signal acquisition module 106 synchronous acquisition of the pressure signal, the temperature signal and the humidity signal, according to the relationship with the pressure air density, temperature and humidity, using the acquired pressure signal, temperature signal and humidity signal pressure contained respectively, the temperature and humidity of air density calculated. 例如,空气密度与压力、温度和湿度的关系模型可以采用下式: For example, the relationship between air density and the model pressure, temperature and humidity may be employed the following formula:

Figure CN101799464BD00051

[0027] 其中,T是温度,P是压强,e是绝对湿度,P是空气密度。 [0027] where, T is the temperature, P is pressure, e is the absolute humidity, P is the air density. 此时,空气密度计算模块107可以将获得的压强、温度和湿度代入到式子I中,即可计算出相应的空气密度。 In this case, the pressure air density calculating module 107 may be obtained, the temperature and humidity is substituted into the formula I, to calculate the corresponding air density.

[0028] 上文已经说明,压力信号采集模块104、温度信号采集模块105和湿度信号采集模块106采集的压力信号、温度信号和湿度信号是同步的,这样空气密度计算模块107在计算空气密度时所获取的压力信号、温度信号和湿度信号也是同步的,或者说,用于计算空气密度的压力、温度和湿度是表征同时或近似同时的压力、温度和湿度的,这就使得空气计算模块107计算的空气密度是实时的,而不是如现有技术中用于计算一个空气密度值的压力、温度和湿度是在三个相隔较长时间的时刻的。 [0028] As already described, the pressure signal acquisition module 104, acquisition module 105 temperature signal and humidity signal acquisition module 106 acquired pressure signal, temperature signal and humidity signal are synchronized, so that the air density calculating module 107 in calculating air density the acquired pressure signal, temperature signal and humidity signal are synchronized, or, for calculating the density of air pressure, temperature and humidity are simultaneously or nearly simultaneously characterizing the pressure, temperature and humidity, which makes air calculation module 107 air density is calculated in real time, rather than as the prior art for calculating a density value of the air pressure, temperature and humidity are separated by a longer period of time at three. 因此本实施例中提供的空气密度检测装置能够提高空气密度检测的实时性。 Thus the air density detecting device provided in the embodiment according to the present embodiment can improve the real-time detection of the air density.

[0029] 实际中,根据对空气密度值的更新速度的要求,可以对压力信号采集模块104、温度信号采集模块105和湿度信号采集模块106的采集信号频率或者说对相邻两次采集信号的相隔时间做调整,例如可以根据需要调整为每隔100ms,压力信号采集模块104、温度信号采集模块105和湿度信号采集模块106对相应的传感器监测的信号进行一次采集。 [0029] In practice, according to the update rates required value of air density, pressure may signal acquisition module 104, temperature signal and humidity signal acquisition module 105 acquisition module 106 or the signal frequency of said two adjacent signal acquisition separated by time to make adjustments, for example, may be adjusted as needed every 100ms, the pressure signal acquisition module 104, temperature signal and humidity signal acquisition module 105 of acquisition module respective monitoring sensor signal 106 to make an acquisition.

[0030] 另外,为了满足信号输出的要求,优选地,在空气密度检测装置中还包括一信号输出模块108,用于将包含空气密度计算模块107计算的空气密度的信号输出,另外还可以与分别包含用于计算该空气密度的压力、温度和湿度的信号同步输出。 [0030] In order to meet the requirements of the output signal, preferably, the air density detecting means further includes a signal output module 108 for outputting a signal comprising a calculation module 107 calculates the air density of the air density may also respectively comprise air pressure is used to calculate the density, temperature and humidity of the synchronization signal output. 在实际中,从空气密度计算模块107输出的信号可以用来输入到风电设备控制系统中,为控制系统控制风电设备的运行提供依据。 In practice, the signal output from the module 107 calculates the air density can be used to input to the control system of the wind power equipment, provide the basis for running the control system controls wind power equipment.

[0031] 另外,在实际应用空气密度检测装置的环境中,例如在风场中,环境温度在常年变化很大,有时在冬季的最低气温可以达到零下30°C,而在夏季的最高气温可以达到零上50°C。 [0031] Further, in the actual condition of the air density detecting means, for example in a wind farm, a great change in the ambient temperature at the annual times the minimum temperature in winter may reach minus 30 ° C, the maximum temperature in the summer may be reaches zero at 50 ° C. 发明人发现,目前的空气密度检测装置主要应用在室内检测的场合,由于室内的条件通常都满足空气密度检测装置中的各个部件的正常工作需要的环境条件,所以在目前的空气密度检测装置中并没有采取遇到环境温度可能超过或低于装置的正常工作温度范围时应该采取的必要解决措施。 The inventors have found that the current air density detecting means is mainly used in indoor detected case, since the condition of the room usually meet the environmental conditions of normal operation of the air density detecting means various components it needs, so the current air density detecting means It did not take the necessary measures to solve the encountered ambient temperature may exceed or lower than the normal operating temperature range of the device should be taken. 而本申请发明人在考虑到上述问题后,提出一种优选的实施方式,即在空气密度检测装置中设置加热系统109,该加热系统109 —端与温度信号采集模块105相连,用于获取温度信号采集模块105采集的温度信号,并根据温度信号采取相应措施,以使空气密度检测装置的温度控制在正常工作所需的温度范围内,例如,加热系统109可以将获取的温度信号与预先设置的阈值相比,当获取的温度信号低于该阈值时,加热系统109启动对空气密度检测装置的加热过程,使得空气密度检测装置的温度升高到正常工作所需的温度范围内。 And the present inventors in view of the above problems, a preferred embodiment, the heating system 109 that is disposed in the air density detecting means, the heating system 109 - and the terminal 105 is connected to the temperature signal acquisition module, for acquiring temperature signal acquisition module 105 of collecting temperature signals, and to take appropriate action based on the temperature signal, so that the temperature detecting means to control the density of the air within the desired operating temperature range, e.g., a temperature signal 109 can be acquired with a heating system is set in advance compared to a threshold value, when the acquired temperature signal is below the threshold, the heating system 109 to start the heating process air density detecting means, detecting means such that the temperature of the air density is increased to a desired normal operating temperature range. 但是在加热系统对空气密度检测装置进行加热的过程中,也会造成检测装置附近的环境温度局部变化,温度传感器采集到的温度值也将升高,而实际上从更大的区域范围看,这种局部温度变化是一种干扰,应该去除,因此,空气密度计算模块在计算空气密度之前,首先要对直接从温度信号采集模块采集到的温度进行补偿,即对从温度信号采集模块接收的温度信号进行修正,修正过程可以包括:减小从温度信号采集模块接收的温度信号中包含的温度值,而温度的减小量可以等于加热系统加热过程的温度变化量。 However, in the heating system for heating air density detecting device, the ambient temperature can also cause local variations in the vicinity of the detecting means, a temperature sensor to collect temperature values ​​will also increase, but actually viewed from a larger area range, such local temperature change is a disturbance, should be removed, thus, air density calculating module calculates air density before, collected directly from the first temperature signal acquisition module to compensate for temperature, i.e. the temperature of the receiving signal acquisition module a temperature correction signal, the correction process may include: reduced temperature value of the temperature signal received from the signal acquisition module comprises a temperature, and reduce the amount of temperature change amount may be equal to the heating temperature of the heating system. 这里加热系统加热过程的温度变化量可以由加热系统在加热过程中通知给空气密度计算模块。 Here the heating system of the heating process can be notified to the temperature change amount of air density calculating module during heating by the heating system.

[0032] 此外,目前我国的风场主要建立在荒无人烟的地方,多数为戈壁或者荒漠地区,现场气候条件十分恶劣,常年平均风速较大,并且空气中通常还有大量的砂尘颗粒,目前市面上的空气密度检测装置对砂尘颗粒没有采取专门的防护措施,使得现有的空气密度检测装置在应用到风场等很容易受到砂尘冲击的场合时,其内部仪器很容易损坏或者测量精度下降,难以适应风场的特殊要求。 [0032] In addition, China's wind field is mainly built in the middle of nowhere, or the majority of the Gobi desert region, the scene is very bad weather conditions, the annual average wind speed is large, and the air is usually a large number of sand and dust particles, the current market air density detecting means does not take special precautions to sand and dust particles, so that conventional air density detecting means when applied to the wind and the like are susceptible to attack where sand and dust, which can be easily damaged or inside the instrument measurement accuracy decline, difficult to adapt to the special requirements of the wind farm. 在本发明实施例提供的空气密度检测装置中优选地在外部设置外部防尘系统110,对外部环境的砂尘等颗粒物进行必要的过滤,防止风场中的大颗粒砂尘对空气密度检测装置进行冲击,使得空气密度检测装置能够适用在风场等风沙较大的地区。 Dust control system is preferably disposed outside the outside air density detecting means provided in the embodiment of the present invention, the embodiment 110, of sand and dust particles and other external environment necessary filtering to prevent large particles in the wind farm on sand and dust air density detecting means impingement, air density detecting means that can be applied in a large area like wind sand.

[0033] 现有技术中应用在风场的检测技术无法实时检测;而可以实时检测的空气密度检测仪又无法应用在风场。 [0033] Application of the prior art in the detection of wind can not be detected in real time; real-time detection of the density of the air and the detector can not be applied in wind. 由于采取上述防尘措施和加热措施,使得本实施例提供的检测装置尤其可以适用在风场等环境恶劣的场所,实现对风场的空气密度的实时检测。 As a result of the above-described dust prevention measures and heated, so that this detection apparatus provided by the embodiment can be applied in particular in harsh environment locations wind, to achieve real-time detection of the air density of the wind farm.

[0034] 在实际中,上述空气密度计算模块107和信号输出模块108可以在微处理机中实现。 [0034] In practice, the air density calculating module 107 and a signal output module 108 may be implemented in the microprocessor.

[0035] 实施例二 [0035] Second Embodiment

[0036] 本实施例相应提供一种空气密度检测方法,该方法可以利用实施例一中提供的空气密度检测装置中的部分或全部模块。 [0036] The present embodiment provides a corresponding method for detecting the air density, the method may use part of an embodiment of an air density detecting means provided in the module or all embodiments.

[0037] 如图2所示,本实施例提供的空气密度检测方法包括如下步骤:[0038] 步骤S201:通过压力传感器对压力进行实时监测,通过温度传感器对温度进行实时监测,通过湿度传感器对湿度进行实时监测; [0037] 2, the air density detection method provided in the present embodiment includes the following steps: [0038] Step S201: real-time monitoring of the pressure by the pressure sensor, real-time monitoring of the temperature by the temperature sensor, the humidity sensor humidity real-time monitoring;

[0039] 步骤S202:压力信号采集模块、温度信号采集模块和湿度信号采集模块定期同步从压力传感器、温度传感器和湿度传感器采集压力信号、温度信号和湿度信号。 [0039] Step S202: pressure signal acquisition module, a temperature and humidity signal acquisition module signal acquisition module periodic pressure signal, temperature signal and humidity signal from the synchronous acquisition pressure sensor, a temperature sensor and a humidity sensor.

[0040] 由于各个传感器是实时进行监测的,而每个信号采集模块从对应的传感器采集信号也是同步的,这就使得获取的压力信号、温度信号和湿度信号也是同步的,为进行空气密度的实时检测提供了数据源上的保证。 [0040] Since each sensor is monitored in real time, and each of the signal acquisition module from the corresponding sensor signals are synchronized, which makes the acquired pressure signal, temperature signal and humidity signal are synchronized, as air density real-time detection to provide a guarantee on the data source.

[0041] 步骤S203:空气密度计算模块接收压力信号采集模块、温度信号采集模块和湿度信号采集模块分别采集的压力信号、温度信号和湿度信号,并根据空气密度与压力、温度和湿度的关系,计算空气密度。 [0041] Step S203: air density calculating module receives a pressure signal acquisition module, pressure signal, temperature signal and humidity signal of the temperature signal acquisition module and humidity signal acquisition module were collected, and based on the air density of the relationship between pressure, temperature and humidity, calculating air density.

[0042] 空气密度计算模块利用的空气密度与压力、温度和湿度的关系仍然可以采用实施例一中的式子I所采用的模型。 [0042] The module uses the air density calculating air density and the relationship between pressure, temperature and humidity can still use the model according to a formula I employed in the embodiment. 空气密度计算模块依据确定的模型,将采集的压力信号、温度信号和湿度信号中分别包含的压力、温度和湿度代入到该模型中,即可计算出相应的空 Air density calculating model determined based on a module, pressure signal, temperature signal and humidity signal included in each of the collected, the temperature and humidity are substituted into the model, to calculate the corresponding empty

气密度。 Gas density.

[0043] 上文已经说明,压力信号采集模块、温度信号采集模块和湿度信号采集模块采集的压力信号、温度信号和湿度信号是同步的,这样空气密度计算模块在计算空气密度时所获取的压力信号、温度信号和湿度信号也是同步的,或者说,用于计算空气密度的压力、温度和湿度是表征同时或近似同时的压力、温度和湿度的,这就使得空气计算模块计算的空气密度是实时的,提高空气密度检测的实时性。 [0043] As already described, the pressure signal acquisition module, a temperature and humidity signal acquisition module signal acquisition module pressure signal, temperature signal and humidity signal are synchronized, so that the air density calculating module to calculate the air density at the acquired pressure signal, temperature signal and humidity signal are synchronized, or, for calculating the density of air pressure, temperature and humidity are simultaneously or nearly simultaneously characterizing the pressure, temperature and humidity, which makes the calculation module calculates the air density of the air is real-time, improve real-time detection of the air density.

[0044] 另外,为了满足信号输出的要求,优选地,还包括以下步骤: [0044] In order to meet the requirements of the output signal, preferably, further comprising the step of:

[0045] 步骤S204:通过信号输出模块将所述空气密度计算模块计算的空气密度信号输出。 [0045] Step S204: the signal output by the signal output module air density calculation module calculates the air density. 在实际中输出的空气密度信号可以作为风电设备控制系统的输入,用于为控制系统控制风电设备的运行提供依据。 Air density signal outputted in practice can be used as an input device to control the wind power system, the control system for providing a basis for controlling the operation of wind power equipment.

[0046] 另外步骤S204还可以替换为,通过信号输出模块将分别包含空气计算模块用于计算空气密度信号的压力、温度和湿度的信号与包含该空气密度的信号同步输出。 [0046] Further in step S204 may also be replaced, respectively, by a signal output module comprising an air pressure calculating module for calculating air density signal, temperature signal and humidity signal and the air including the sync output density. 在实际中,输出的空气密度信号以及压力信号、温度信号和湿度信号可以作为风电设备控制系统的输入,相对于步骤S204可以为控制系统控制风电设备的运行提供更全面的依据。 In practice, air density signal and the pressure signal, temperature signal and humidity signal output from the wind power can be used as an input device control system, with respect to the step S204 can provide more comprehensive basis for control of the operation of the wind power system equipment.

[0047] 另外,考虑到风场的温度条件较为恶劣,为了使得检测过程更能适应恶劣的温度环境,本实施例提供的方法优选地还包括:当温度采集模块采集的温度信号中包含的温度低于预定的阈值时,通过加热系统对空气密度检测装置进行加热;并将加热过程的温度变化量发送至所述空气密度计算模块。 [0047] Further, considering the temperature condition is more severe wind, so that the detection process can adapt to the harsh temperature environment, the method provided in this embodiment preferably further includes: a temperature signal of the temperature when the temperature acquisition module contained below a predetermined threshold value, the air is heated by the heating system density detecting means; temperature change amount and the process of transmitting heat to the air density calculation module. 但是在加热系统对空气密度检测装置进行加热的过程中,也会造成检测装置附近的环境温度局部变化,温度传感器采集到的温度值也将升高,而实际上从更大的区域范围看,这种局部温度变化是一种干扰,应该去除,因此,空气密度计算模块在计算空气密度之前,首先要对直接从温度信号采集模块采集到的温度进行补偿,将从温度信号采集模块接收的温度信号进行修正,所述修正包括减小所述接收的温度信号中包含的温度值,并且减小量等于所述空气密度计算模块接收的加热系统加热过程的温度变化量。 However, in the heating system for heating air density detecting device, the ambient temperature can also cause local variations in the vicinity of the detecting means, a temperature sensor to collect temperature values ​​will also increase, but actually viewed from a larger area range, such local temperature change is a disturbance, should be removed, thus, air density calculating module calculates air density before, collected directly from the first temperature signal acquisition module to compensate for the temperature, from the temperature signal acquisition module receives temperature correction signal, the correction value of the temperature comprises a temperature decrease of the signal contained in the received, and to reduce an amount equal to the amount of change in air density calculating the temperature of the heating system module receives the heating process. 这样,在计算空气密度所依据的温度可以消除因加热系统加热导致的局部温度升1¾的干扰。 Thus, in calculating the air density based on the temperature can be eliminated by local temperature rise caused by heating the heating system of 1¾ interference.

[0048] 综上所述,本发明实施例提供的空气密度检测装置和检测方法能够提高空气密度检测的实时性。 [0048] In summary, the air density detecting means and the detection method provided by the embodiment of the present invention can improve the real-time detection of the air density.

[0049] 以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。 [0049] The above are only preferred embodiments of the present invention, it should be noted that those of ordinary skill in the art, in the present invention without departing from the principles of the premise, can make various improvements and modifications, such modifications and modifications should also be regarded as the protection scope of the present invention.

Claims (7)

  1. 1.一种空气密度检测装置,其特征在于,包括:对压力进行实时监测的压力传感器、对温度进行实时监测的温度传感器、对湿度进行实时监测的湿度传感器,还包括压力信号采集模块、温度信号采集模块和湿度信号采集模块,所述压力信号采集模块、温度信号采集模块和湿度信号采集模块分别用于定期同步从压力传感器、温度传感器和湿度传感器采集压力信号、温度信号和湿度信号,还包括接收所述压力信号采集模块、温度信号采集模块和湿度信号采集模块分别采集的压力信号、温度信号和湿度信号,并根据空气密度与压力、温度和湿度的关系计算空气密度的空气密度计算模块; 所述装置还包括与所述温度信号采集模块相连的加热系统,所述加热系统用于当温度信号采集模块采集的温度信号中包含的温度低于预定的阈值时,对所述空气密度检测装置 An air density detecting means, wherein, comprising: a pressure sensor monitoring the pressure in real time, real-time monitoring of the temperature of a temperature sensor, humidity real-time monitoring of the humidity sensor, a signal acquisition module further includes a pressure, temperature signal acquisition module and humidity signal acquisition module, the pressure signal acquisition module, a temperature and humidity signal acquisition module for signal acquisition module, respectively, a pressure signal, temperature signal and humidity signal synchronized periodically collected from a pressure sensor, a temperature sensor and a humidity sensor, but also comprising receiving said pressure signal acquisition module, a pressure signal from the temperature signal and humidity signal acquisition module acquisition module were collected, the temperature signal and humidity signal, air density and air density calculation module calculates air density from the relationship with the pressure, temperature and humidity ; said apparatus further comprises a heating system and the temperature signal acquisition module connected to the heating system is used when the temperature signal of the temperature signal acquisition module contained below a predetermined threshold, the detected air density equipment 进行加热,并将加热过程的温度变化量发送至所述空气密度计算模块,所述空气密度计算模块还用于将从温度信号采集模块接收的温度信号进行修正,所述修正包括减小所述接收的温度信号中包含的温度值,并且减小量等于所述空气密度计算模块接收的加热系统加热过程的温度变化量。 Heating, temperature variation and sent to the heating process air density calculating module, the module is further for calculating air density from the temperature signal acquisition module receives the temperature signal is corrected, the correction comprises reducing the temperature signal contained in the received temperature value, and to reduce an amount equal to the amount of change in air density calculating the temperature of the heating system of the heating process module receives.
  2. 2.根据权利要求1所述的装置,其特征在于,所述装置还包括:信号输出模块,用于将包含所述空气密度计算模块计算的空气密度的信号输出。 2. The apparatus according to claim 1, characterized in that said apparatus further comprises: a signal output means for outputting a signal including the air density calculation module calculates the air density.
  3. 3.根据权利要求1所述的装置,其特征在于,所述信号输出模块还用于将分别包含用于计算空气密度信号的压力、温度和湿度的信号与包含该空气密度的信号同步输出。 3. The apparatus according to claim 1, characterized in that the signal output module is further configured to contain the pressure signal for calculating air density, temperature and humidity of the air signal and a signal containing sync output density.
  4. 4.根据权利要求1所述的装置,其特征在于,所述装置还包括设置在外部的外部防尘系统。 4. The apparatus according to claim 1, characterized in that said apparatus further includes an external system is arranged outside the dust.
  5. 5.一种空气密度检测方法,其特征在于,包括: 通过压力传感器对压力进行实时监测,通过温度传感器对温度进行实时监测,通过湿度传感器对湿度进行实时监测; 压力信号采集模块、温度信号采集模块和湿度信号采集模块定期同步分别从压力传感器、温度传感器和湿度传感器采集压力信号、温度信号和湿度信号; 空气密度计算模块接收压力信号采集模块、温度信号采集模块和湿度信号采集模块分别采集的压力信号、温度信号和湿度信号,并根据空气密度与压力、温度和湿度的关系,计算空气密度; 该方法还包括:当温度采集模块采集的温度信号中包含的温度低于预定的阈值时,通过加热系统对空气密度检测装置进行加热;并将加热过程的温度变化量发送至所述空气密度计算模块; 所述空气密度计算模块在计算空气密度之前,将从温度信号采集模 A method for detecting the air density, which is characterized in that, comprising: a pressure sensor pressure by real-time monitoring, real-time monitoring of the temperature by the temperature sensors, real-time monitoring of the humidity by the humidity sensor; pressure signal acquisition module, a temperature signal acquisition module and humidity signal acquisition module periodically synchronize were collected pressure signal, temperature signal and humidity signal from the pressure sensor, a temperature sensor and a humidity sensor; air density calculating module receives a pressure signal acquisition module, a temperature signal acquisition module and humidity signal acquisition module are collected pressure signal, temperature signal and humidity signal, and the relation of air density and pressure, temperature and humidity, calculate the air density; the method further comprising: when the temperature signal of the temperature acquisition module contained below a predetermined threshold value, by heating system heating the air density detecting means; heating process and the temperature change amount of transmission to the air density calculating module; module calculates the air density before calculating air density, the temperature signal from the acquisition mode 接收的温度信号进行修正,所述修正包括减小所述接收的温度信号中包含的温度值,并且减小量等于所述空气密度计算模块接收的加热系统加热过程的温度变化量。 Correcting the received temperature signal, the correction value of the temperature comprises a temperature decrease of the signal contained in the received, and to reduce an amount equal to the amount of change in air density calculating the temperature of the heating system module receives the heating process.
  6. 6.根据权利要求5所述的方法,其特征在于,该方法还包括: 通过信号输出模块将包含所述空气密度计算模块计算的空气密度的信号输出。 6. The method according to claim 5, characterized in that, the method further comprising: signal output module outputs the signal including the air density calculation module calculates the air density.
  7. 7.根据权利要求5所述的方法,其特征在于,该方法还包括: 通过信号输出模块将分别包含用于计算空气密度信号的压力、温度和湿度的信号与包含该空气密度的信号同步输出。 7. The method as claimed in claim 5, wherein the method further comprises: a signal output by each module comprises means for calculating the density of the air pressure signal, temperature signal and humidity signal and the air including the sync output density .
CN 201010148701 2010-04-14 2010-04-14 Device and method for detecting air density CN101799464B (en)

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