TWI630790B - Solar power generation system and solar module power generation abnormality detection method - Google Patents
Solar power generation system and solar module power generation abnormality detection method Download PDFInfo
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Abstract
一種太陽能發電系統與太陽能模組發電異常檢測方法,所述檢測方法包含以下步驟:(A)經由電連接於太陽能模組串列之逆變器將音頻訊號輸入太陽能模組串列的電力迴路;(B)以能感應接收在電力迴路傳送之音頻訊號的耦合接收器沿電力迴路位移;及(C)使耦合接收器根據音頻訊號的感測結果對應輸出一個能被人體感知的提示訊息。透過上述太陽能模組發電異常檢測方法設計,可根據該耦合接收器輸出之該提示訊息內容,立即判斷出該耦合接收器是否通過該電力迴路之斷路故障點,能快速檢測出太陽能模組串列之斷路故障點位置。A solar power generation system and a solar module power generation abnormality detecting method, the detecting method comprising the following steps: (A) inputting an audio signal into a power circuit of a series of solar modules via an inverter electrically connected to a series of solar modules; (B) displacing along the power circuit by a coupled receiver capable of inductively receiving an audio signal transmitted in the power loop; and (C) causing the coupled receiver to output a prompt message that can be perceived by the human body according to the sensing result of the audio signal. The solar module power generation abnormality detecting method is designed, and according to the content of the prompt message output by the coupled receiver, it is immediately determined whether the coupled receiver passes the disconnection fault point of the power circuit, and the solar module serial can be quickly detected. The location of the disconnection fault point.
Description
本發明是有關於一種發電系統,特別是指一種太陽能發電系統。The present invention relates to a power generation system, and more particularly to a solar power generation system.
太陽能是一種相當環保的綠色能源,因此許多國家都投入大量資源積極開發與建設大型太陽能發電廠,以期降低對於核能與石化燃料的需求。目前的太陽能發電廠建設時,通常會將多個太陽能模組串聯以構成一個太陽能模組串列,然後將多個太陽能模組串列電連接於一個逆變系統,可將該等太陽能模組串列產生之直流電轉變成交流電輸出,可用以驅動負載,或者是輸入市電系統以轉賣給售電單位。Solar energy is a kind of environmentally friendly green energy, so many countries have invested a lot of resources to actively develop and build large-scale solar power plants, with a view to reducing the demand for nuclear energy and fossil fuels. In the current construction of a solar power plant, a plurality of solar modules are usually connected in series to form a series of solar modules, and then a plurality of solar modules are electrically connected in series to an inverter system, and the solar modules can be The DC power generated by the series is converted into an AC output, which can be used to drive the load, or input to the utility system for resale to the unit for sale.
由於一座太陽能發電場通常都會具有相當多的太陽能模組串列,而每一個太陽能模組串列又是由多數太陽能模組串聯構成,每當發現該逆變系統輸出之電力驟降時,例如某一太陽能模組串列的某一個太陽能模組故障,以致於該太陽能模組串列無電力輸出或輸出電力驟降。此時,維修人員得要先費時檢查哪一個太陽能模組串列出現問題,然後再以電錶逐個量測檢查發生故障之該太陽能模組串列之每一個太陽能模組是否正常輸出電力,藉以找出故障之太陽能模組或電力迴路之斷路故障點,非常費時且不便。Since a solar farm usually has a large number of solar modules, and each solar module series is composed of a plurality of solar modules connected in series, whenever the power output of the inverter system is found to plummet, for example, A certain solar module in a solar module is faulty, so that the solar module has no power output or a sudden drop in output power. At this point, the maintenance personnel must first check for a problem in which series of solar modules, and then use the meter to measure each solar module in the series of faulty solar modules to output power normally. The faulty point of the failed solar module or power circuit is very time consuming and inconvenient.
因此,本發明的目的,即在提供一種能改善先前技術之至少一個缺點的太陽能發電系統與故障檢測方法。Accordingly, it is an object of the present invention to provide a solar power generation system and fault detection method that can improve at least one of the disadvantages of the prior art.
於是,本發明太陽能發電系統,包含一個太陽能模組串列、一個電連接於該太陽能模組串列的逆變器,及一個耦合接收器。該太陽能模組串列具有多個依序串聯以構成一個電力迴路之太陽能模組,該逆變器包括一個用以將該電力迴路輸出之電力轉換成交流電輸出的逆變電路單元,及一個能輸出一個音頻訊號至該電力迴路之音頻訊號產生單元。該耦合接收器能供一位使用者拿持而沿該太陽能模組串列之該等太陽能模組的串列方向位移,包括一個能感應接收該電力迴路傳送之該音頻訊號之訊號接收單元,及一個能根據該訊號接收單元對於該音頻訊號的感應結果對應輸出一個能被人體感知的提示訊息的提示單元。Thus, the solar power generation system of the present invention comprises a solar module series, an inverter electrically connected to the solar module series, and a coupled receiver. The solar module series has a plurality of solar modules serially connected in series to form a power circuit, the inverter includes an inverter circuit unit for converting the power outputted by the power circuit into an alternating current output, and an energy An audio signal is output to the audio signal generating unit of the power circuit. The coupled receiver can be held by a user and displaced along the serial direction of the solar modules of the solar module, including a signal receiving unit capable of sensing and receiving the audio signal transmitted by the power circuit. And a prompting unit capable of outputting a prompt message that can be perceived by the human body according to the sensing result of the signal receiving unit for the audio signal.
於是,本發明太陽能模組發電異常檢測方法,適用於檢測一個太陽能模組串列之斷路故障位置,該太陽能模組串列具有一個用以傳輸電力之電力迴路。該太陽能模組發電異常檢測方法包含以下步驟:(A)經由一個電連接於該太陽能模組串列之逆變器將一個音頻訊號輸入該電力迴路;(B)以一個能感應接收在該電力迴路傳送之該音頻訊號的耦合接收器沿該電力迴路位移,並使該耦合接收器感應其當前所在之該電力迴路區段是否存在該音頻訊號;及(C)使該耦合接收器根據該音頻訊號的感測結果對應輸出一個能被人體感知的提示訊息。Therefore, the solar module power generation abnormality detecting method of the present invention is suitable for detecting a disconnection fault position of a solar module series, and the solar module series has a power loop for transmitting power. The solar module power generation abnormality detecting method comprises the following steps: (A) inputting an audio signal into the power circuit via an inverter electrically connected to the solar module series; (B) receiving and receiving the power in the power circuit; The coupled receiver of the audio signal transmitted by the loop is displaced along the power loop and causes the coupled receiver to sense whether the audio loop section of the power loop segment in which it is currently present; and (C) causing the coupled receiver to follow the audio The sensing result of the signal corresponds to outputting a prompt message that can be perceived by the human body.
本發明的功效在於:透過將音頻訊號傳送至太陽能模組串列之電力迴路,以及該耦合接收器能感應該電力迴路之該音頻訊號並對應輸出該提示訊息的設計,能根據該耦合接收器輸出之該提示訊息內容,立即判斷該耦合接收器是否剛剛通過該電力迴路的斷路故障點,所以能大幅縮短太陽能發電系統之故障檢修時間。The effect of the present invention is that the audio signal can be transmitted to the power circuit of the solar module series, and the coupled receiver can sense the audio signal of the power circuit and correspondingly output the prompt message design according to the coupling receiver. The content of the prompt message is outputted, and it is immediately determined whether the coupled receiver has just passed the disconnection fault point of the power circuit, so that the faulty maintenance time of the solar power generation system can be greatly shortened.
參閱圖1、2、3,本發明太陽能發電系統的實施例,包含多個太陽能模組串列2、一個電連接於該等太陽能模組串列2而使該等太陽能模組串列2並聯設置之逆變器3,及一個能供一位使用者手持移動之耦合接收器4。每一個太陽能模組串列2具有多個依序串聯而構成一個電聯接於該逆變器3之電力迴路20的太陽能模組21。由於該等太陽能模組串列2為習知構件且非本發明之改良重點,因此不再詳述。Referring to Figures 1, 2, and 3, an embodiment of the solar power generation system of the present invention includes a plurality of solar module series 2, one electrically connected to the solar module series 2, and the solar modules are connected in series 2 The inverter 3 is provided, and a coupling receiver 4 is provided for one user to move. Each of the solar module series 2 has a plurality of solar modules 21 connected in series to form a power module 20 electrically coupled to the power circuit 20 of the inverter 3. Since the solar module series 2 is a conventional component and is not a modification of the present invention, it will not be described in detail.
該逆變器3包括一個逆變電路單元31、一個電力檢測單元32、一個音頻訊號產生單元34,及一個警報單元33。該逆變電路單元31能彙整該等太陽能模組串列2輸出之直流電,並將直流電轉換成交流電輸出,由於該逆變電路單元31將直流電轉換成交流電輸出的技術眾多,因此不再詳述。The inverter 3 includes an inverter circuit unit 31, a power detecting unit 32, an audio signal generating unit 34, and an alarm unit 33. The inverter circuit unit 31 can integrate the direct current output of the solar module series 2 and convert the direct current into an alternating current output. Since the inverter circuit unit 31 converts the direct current into the alternating current output, the technology is numerous, and therefore will not be described in detail. .
該電力檢測單元32可供操作設定一個電力閥值,會檢測該逆變電路單元31之該輸出電力是否小於該電力閥值,並於判斷該輸出電力小於該電力閥值時,驅使該警報單元33發出一個用以提醒遠端監控人員或維修人員的警報訊息,並同步觸發該音頻訊號產生單元34。所述警報訊息可以是電子郵件、簡訊、電話語音、社群軟體/網站之訊息或警報記錄等,且不以上述類型為限。The power detecting unit 32 is operable to set a power threshold, and detects whether the output power of the inverter circuit unit 31 is less than the power threshold, and drives the alarm unit when determining that the output power is less than the power threshold. 33 sends an alarm message to remind the remote monitoring personnel or maintenance personnel, and triggers the audio signal generating unit 34 synchronously. The alert message may be an email, a short message, a phone voice, a social software/website message or an alert record, and is not limited to the above types.
該音頻訊號產生單元34能被觸發啟動而產生一個音頻訊號340,並將該音頻訊號340耦合於該等太陽能模組串列2之該等電力迴路20,使該音頻訊號340沿該等電力迴路20傳播。The audio signal generating unit 34 can be triggered to generate an audio signal 340, and the audio signal 340 is coupled to the power circuits 20 of the solar module series 2, so that the audio signal 340 is along the power circuits. 20 spread.
該耦合接收器4包括一個能用以靠近每一電力迴路20之訊號接收單元41,及一個電連接於該訊號接收單元41之提示單元42。該訊號接收單元41可於靠近一個太陽能模組串列2之該電力迴路20時,也就是靠近該等太陽能模組21間的電力傳輸線時,以耦合感應的方式感應接收在該電力迴路20傳輸的該音頻訊號340。The coupled receiver 4 includes a signal receiving unit 41 that can be used adjacent to each power circuit 20, and a prompting unit 42 that is electrically coupled to the signal receiving unit 41. The signal receiving unit 41 can inductively receive and transmit in the power circuit 20 when coupled to the power circuit 20 of the solar module string 2, that is, when the power transmission line between the solar modules 21 is adjacent to the power transmission line. The audio signal 340.
該提示單元42包括一個訊號放大模組421,及一個訊號轉換模組422。該訊號放大模組421會將該訊號收單元41接收之該音頻訊號340進行訊號放大處理,該訊號轉換模組422會將訊號放大模組421處理後之音頻訊號340轉換成能供人體感知之提示訊息。所述提示訊息可以是聲音、亮光、影像、溫度及/或震動等形式。The prompting unit 42 includes a signal amplifying module 421 and a signal converting module 422. The signal amplification module 421 performs signal amplification processing on the audio signal 340 received by the signal receiving unit 41. The signal conversion module 422 converts the audio signal 340 processed by the signal amplification module 421 into a human body for sensing. Prompt message. The prompt message may be in the form of sound, light, image, temperature, and/or vibration.
本發明太陽能模組發電異常檢測方法包含以下步驟:The solar module power generation abnormality detecting method of the invention comprises the following steps:
步驟(一):將一個能輸出音頻訊號340之逆變器3電連接於該等太陽能模組串列2,使該等太陽能模組串列2並聯於該逆變器3。使該逆變器3持續彙整該太陽能模組串列2輸出之直流電,並將直流電轉換成交流電輸出,且同時檢測分析本身輸出電力是否低於該電力閥值。Step (1): An inverter 3 capable of outputting the audio signal 340 is electrically connected to the solar module series 2, so that the solar module series 2 is connected in parallel to the inverter 3. The inverter 3 is continuously converges the direct current outputted by the solar module serial 2, and converts the direct current into an alternating current output, and simultaneously detects whether the output power of the analysis itself is lower than the power threshold.
步驟(二):使該逆變器3於判斷其輸出電力低於該電力閥值時,發出該警報訊息,並開始將該音頻訊號340耦合傳送至每一個太陽能模組串列2之該電力迴路20。Step (2): causing the inverter 3 to issue the alarm message when determining that the output power is lower than the power threshold, and start coupling the audio signal 340 to the power of each solar module serial 2 Loop 20.
步驟(三)使一個能感應接收於每一電力迴路20傳送之該音頻訊號340的耦合接收器4,沿每一太陽能模組串列2之該等太陽能模組21的串列方向位移,使該耦合接收器4感測其所經過之該該電力迴路20區段是否存在該音頻訊號340。Step (3) displacing a coupling receiver 4 capable of sensing the audio signal 340 transmitted by each power circuit 20 along the serial direction of the solar modules 21 of each solar module string 2 The coupling receiver 4 senses whether the audio signal 340 is present in the section of the power circuit 20 through which it passes.
步驟(四)使該耦合接收器4根據該音頻訊號340感測結果,對應輸出該提示訊息。在本實施例中,是使該耦合接收器4於感測到該音頻訊號時,就發出該提示訊息,而於未感測到該音頻訊號時停止發出該提示訊息。Step (4), the coupling receiver 4 correspondingly outputs the prompt message according to the sensing result of the audio signal 340. In this embodiment, when the coupled receiver 4 senses the audio signal, the prompt message is sent, and when the audio signal is not sensed, the prompt message is stopped.
透過該逆變器3與該耦合接收器4之結構設計,以及上述太陽能模組發電異常檢測方法設計,使用者僅需持用該耦合接收器4沿一個太陽能模組串列2之串列方向位移並靠近對應之電力迴路20,就能檢測出該電力迴路20是否出現斷路故障。若該電力迴路20未故障,則在沿該電力迴路20位移的過程中,該耦合接收器4都會感測到該音頻訊號340且會持續發出該提示訊息。當該電力迴路20有發生斷路故障時,因為於該電力迴路20傳送之該音頻訊號340僅能傳送至該電力迴路20之該斷路故障點201,所以該耦合接收器4移動通過該電力迴路20之該斷路故障點201後,就會因為感測不到該音頻訊號340而停止發出該提示訊息,使用者就能立即得知該電力迴路20之斷路故障點201位在哪一個太陽能模組21,或者是位在哪兩個太陽能模組21間,相當的方便,不需再以電表或相關儀器逐個電連接量測每一個太陽能模組串列2之每一個太陽能模組21。Through the structural design of the inverter 3 and the coupled receiver 4, and the solar module power generation abnormality detecting method design, the user only needs to use the coupled receiver 4 along the serial direction of a solar module string 2 Displacement and proximity to the corresponding power circuit 20 can detect whether the power circuit 20 has an open circuit fault. If the power circuit 20 is not faulty, the coupling receiver 4 senses the audio signal 340 and continuously sends the prompt message during the displacement along the power circuit 20. When the power circuit 20 has an open circuit fault, since the audio signal 340 transmitted by the power circuit 20 can only be transmitted to the open circuit fault point 201 of the power circuit 20, the coupled receiver 4 moves through the power circuit 20 After the disconnection fault point 201, the prompt message is stopped because the audio signal 340 is not sensed, and the user can immediately know which solar module 21 the disconnection fault point 201 of the power circuit 20 is in. Or, which two solar modules 21 are located, it is quite convenient, and it is no longer necessary to measure each solar module 21 of each solar module string 2 one by one by an electric meter or related instruments.
在本實施例中,該提示單元42是設計成會將該訊號接收單元41感應之該音頻訊號轉換成能被人體感知之該提示訊息,所以在該訊號接收單元41未感應到該音頻訊號時,該提示單元42會停止輸出該提示訊息。但實施時,在本發明之其它實施態樣中,也可將該提示單元42設計成在有感測到該音頻訊號的情況與沒有感測到該音頻訊號的情況會各別產生不同之提示訊息,也就是會根據該音頻訊號之感測結果輸出不同之提示訊息,例如輸出不同聲音、不同色光或不同影像等,同樣能讓使用者方便區別該耦合接收器4是否通過一個電力迴路20的該斷路故障點201。In this embodiment, the prompting unit 42 is designed to convert the audio signal sensed by the signal receiving unit 41 into the prompt message that can be perceived by the human body, so that when the signal receiving unit 41 does not sense the audio signal, The prompting unit 42 stops outputting the prompt message. However, in other implementations of the present invention, the prompting unit 42 may be designed to generate different prompts when the audio signal is sensed and the audio signal is not sensed. The message, that is, outputting different prompt messages according to the sensing result of the audio signal, for example, outputting different sounds, different color lights or different images, etc., also allows the user to conveniently distinguish whether the coupled receiver 4 passes through a power circuit 20. The open circuit fault point 201.
此外,在本實施例中,該太陽能發電系統是以具有一個耦合接收器4為例進行說明,但實施時,在本發明之其它實施態樣中,該太陽能發電系統也能具有多個耦合接收器4,而能方便多位使用者各別持用進行該等太陽能模組串列2之斷路故障點201檢測。In addition, in the embodiment, the solar power generation system is described by taking a coupled receiver 4 as an example, but in implementation, in other embodiments of the present invention, the solar power generation system can also have multiple coupled receptions. The device 4 can facilitate the detection of the disconnection fault point 201 of the solar module series 2 by a plurality of users.
綜上所述,透過該逆變器3能於檢測出其輸出之電力低於預定之電力閥值時就發出警報訊息,並開始將該音頻訊號340傳送至每一個太陽能模組串列2之電力迴路20的設計,以及該耦合接收器4能於靠近每一個太陽能模組串列2之該電力迴路20移動時,感應該音頻訊號340並產生該提示訊息的設計,當該耦合接收器4未發出該提示訊息或該提示訊息改變時,即表示該耦合接收器4剛剛通過該太陽能模組串列2之該斷路故障點201,能方便使用者快速檢測出太陽能模組串列2之斷路故障點201的位置,可大幅縮短該等太陽能模組串列2之該斷路故障點201的檢測時間,相當方便實用。因此,確實可達到本發明之目的。In summary, the inverter 3 can send an alarm message when it detects that the output power is lower than a predetermined power threshold, and starts transmitting the audio signal 340 to each solar module serial 2 The design of the power circuit 20, and the coupling receiver 4 can sense the audio signal 340 and generate the prompt message when the power circuit 20 is moved near each of the solar module series 2, when the coupling receiver 4 is When the prompt message is not sent or the prompt message is changed, it means that the coupling receiver 4 has just passed the disconnection fault point 201 of the solar module serial 2, which can facilitate the user to quickly detect the disconnection of the solar module serial 2 The position of the fault point 201 can greatly shorten the detection time of the disconnection fault point 201 of the solar module series 2, which is quite convenient and practical. Therefore, the object of the present invention can be achieved.
惟以上所述者,僅為本發明的實施例而已,當不能以此限定本發明實施的範圍,凡是依本發明申請專利範圍及專利說明書內容所作的簡單的等效變化與修飾,皆仍屬本發明專利涵蓋的範圍內。However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the simple equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still Within the scope of the invention patent.
2‧‧‧太陽能模組串列
20‧‧‧電力迴路
201‧‧‧斷路故障點
21‧‧‧太陽能模組
3‧‧‧逆變器
31‧‧‧逆變電路單元
32‧‧‧電力檢測單元
33‧‧‧警報單元
34‧‧‧音頻訊號產生單元
340‧‧‧音頻訊號
4‧‧‧耦合接收器
41‧‧‧訊號接收單元
42‧‧‧提示單元
421‧‧‧訊號放大模組
422‧‧‧訊號轉換模組2‧‧‧Solar module series
20‧‧‧Power circuit
201‧‧‧ Breaking point of failure
21‧‧‧Solar modules
3‧‧‧Inverter
31‧‧‧Inverter circuit unit
32‧‧‧Power detection unit
33‧‧‧Alarm unit
34‧‧‧Audio signal generation unit
340‧‧‧Audio signal
4‧‧‧ Coupled Receiver
41‧‧‧Signal receiving unit
42‧‧‧Cue unit
421‧‧‧Signal amplification module
422‧‧‧Signal Conversion Module
本發明的其他的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中: 圖1是本發明太陽能發電系統與的一實施例的架構示意圖; 圖2是該實施例的功能方塊圖;及 圖3是類似圖1之視圖,示意說明一個耦合接收器位移通過一個電力迴路之一個斷路故障點時,該耦合接收器停止輸出一個提示訊息的情況。Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: FIG. 1 is a schematic structural diagram of an embodiment of a solar power generation system of the present invention; FIG. 2 is a functional block of the embodiment. Figure 3 is a view similar to Figure 1, illustrating a coupling receiver that stops outputting a prompt message when a coupled receiver is displaced through an open circuit fault point of a power circuit.
Claims (10)
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