M384409 五、新型說明： 【新型所屬之技術領域】 本創作係有關於一種太陽光電設備，特別是指一種可供停電時太陽能 發電系統之電力可繼續運轉的兼具停電備援供電功能併網型太陽光電設 【先前技術】 隨著地球能源耗盡及環保意識的抬頭’再生能源逐漸受到矚目，而再 φ生能源係指可自行再生的能源，如太陽能、風能、潮汐能、地熱能、生物 廢料能等，其具有使用後可再製造、再使用等優點，不致有匱乏的疑慮。 目前太陽能應用於再生能源系統中主要係藉由太陽能光電板(s〇lar module)來發電，其可分為獨立發電（stand al〇ne)或併網發電（grid connected)，該獨立發電係需設置蓄電池，以供儲存太陽光電能，而該併 網發電則為利用併網型電力轉換器（或稱逆變器、電力調節器， Photovoltaic inverter，PV inverter)將太陽光電能直接饋入電力迴路及 籲市電，亦即’藉由將太陽光電能與市電並聯，使電力饋入電網而共同提供 -電力至負載端使用。 由於電力饋人電網時，需考量電力品質、電力系統穩定性、孤島效應 (islanding effect)、負載保護、電網匹配安全規範等問題，這些問題經 由該逆變器内部的數位訊號處理器控制的電腦軟硬體可自動偵測電網狀況 並做出應對保護，當市電斷電時，該併網型電力轉換器若持續發電，將會 形成-孤立的發電系統，使電網處於上電狀態，造成對維修人員的危險。 —因此，_相_断U太陽純產t侧鮮从安全键機制規範 3 M384409 (如VDE νΦ126-卜UL1741幻咖等），該併網型電力轉換器必須 具備防止孤島效應的保護功能（Anti_lslanding Pr〇tecti〇n)，並且即時 的將併網型電力轉換器關機脫離電網，以保護相關電網上維護人員的安 王然而’备電力異常或天災而停電時，上述之併網型電力轉換器因具有 防止孤島效應保護的功能而必須停止運作，使其無法輸出電力，造成太陽 光發電线於停電之緊急航下無法正常朗，降低其實祕及便繼。 緣疋，本創作人有感於上述問題之可改善，乃潛心研究並配合學理之 運用，進而提出-種設計合理且有效改善上述_之本創作。 【新型内容】 本創作之主要目的在於提供一種兼具停電備援供電功能併網型太陽 光電設備’使其結構難，並可達_低穌及停電時續紐電系統之 電力繼續運轉之目的。 為達上述目的，本創作之兼具停電備援供電功能併網型太陽光電設備 係”市電及貞載端連接’該兼具停電備援供電功能併網型太陽光電設 備包括：太陽能裝置；逆變器，與該太陽能裝置電性連接；以及控制電路， 係電性連接於該逆變器與該市電之間，且該控制電路包括：第一電路，係 電料齡該逆變器與該市電之間，且該第—電路設有第_開關；第二電 路’係與該第-電路電性連接，該第二電路設有第二開關及不斷電器；第 三電路，該第三電路之—端係與該第—電路電性連接，該第三電路之另一 端與該不斷電器電性連接，且該第三電路設有第三開關；以及第四電路’ 係電性連接於該第-電路及該負载端之間，其中，藉由該第—開關、該第 二開關及第三關之導通㈣se)及關（Qpen)而產生複數健電模式。 M384409 藉此，以使該逆變器於市電電力中斷時可透過該不斷電器之輸出電源作為 同步電源而持續運轉，以將該太陽驗置發電產生之電源持續供電給該負 載端，達舶天停電時太·裝置與市電觸⑽gHd)__發電供 應負載用電之目的’並可提供-符合市電停電時仍保有防止孤島效應之保 護電路’且其結構精簡並可降低成本，進而增加整體之實用性及便利性者。 為了能夠更進-步瞭解本創作之特徵、_和技術内容，請參閱以下 有關本創作之私綱與關’惟所關式僅提供參考與說㈣，非用以 ^ 限制本創作。 【實施方式】 請參閱第1 ®卿’為補作之兼具停電供電魏侧型太陽光 電設備之電路方塊示意圖。該兼具停電備援供電功能併網型太陽光電設備 係包括太陽能裝置110、逆變器120(PV inverter，或稱電力調節器、電力 轉換器）及控制電路⑽，以供與一市電210及一負載端220連接。 該太陽能裝置110係為光電板組列（s〇lar M〇dules紅印）或光伏發 #-電器（PVGe麵t〇r)，而該逆變器12〇係與該太陽能裝置11〇躲連接， 該逆變器120為併網型逆變器，且該太陽能裝置m與該逆變器12〇之間 連接有隔離開關121 (如模殼式斷路器（MCCB))。 該控制電路130係電性連接於該逆變器12〇與該市電⑽之間其包 括第-電路A、第二電路B、第三電路〇及第四電路D，該第一電路八電性 連接於該逆變謂與該市電21〇之間，且該第一電^設有第一開關⑶， 亦即，該第-開關131設於該市電21〇與該第四電路D之間且該第一開 關131連接有感測器137 (如停電感測器），該逆變器12〇及該第一開關 5 M384409M384409 V. New description: [New technical field] This creation department is about a kind of solar photovoltaic equipment, especially a power-saving backup power supply function that can be used when the power of the solar power generation system can continue to operate during power outage. Solar Photovoltaic [Prior Art] With the exhaustion of the earth's energy and the rise of environmental awareness, 'renewable energy is gradually attracting attention, and then shengsheng energy refers to renewable energy sources such as solar energy, wind energy, tidal energy, geothermal energy, Bio-waste can wait for it, and it has the advantages of being re-manufactured and reused after use, and there is no doubt about lack of it. At present, solar energy is mainly used in renewable energy systems to generate electricity by solar photovoltaic panels, which can be divided into independent power generation (stand al〇ne) or grid connected power generation (grid connected). A battery is provided for storing solar photovoltaic energy, and the grid-connected power generation directly feeds solar photovoltaic energy into the power circuit by using a grid-connected power converter (or a photovoltaic converter, a photovoltaic inverter, a PV inverter) And call the city power, that is, 'by the solar photovoltaic energy in parallel with the mains, the power is fed into the grid and provided together - power to the load end. Since the power is fed into the power grid, it is necessary to consider power quality, power system stability, islanding effect, load protection, grid matching safety specifications, etc., which are controlled by the digital signal processor inside the inverter. The hardware and software can automatically detect the status of the power grid and provide protection. When the mains power is cut off, if the grid-connected power converter continues to generate electricity, it will form an isolated power generation system, which will make the power grid in power-on state, causing The danger of maintenance personnel. - Therefore, _ phase _ break U sun pure production t side fresh from the safety key mechanism specification 3 M384409 (such as VDE νΦ126-b UL1741 phantom, etc.), the grid-connected power converter must have protection against islanding (Anti_lslanding Pr〇tecti〇n), and immediately shut down the grid-connected power converter off the grid to protect the maintenance personnel of the relevant grid, An Wang, however, when the power supply is abnormal or natural disasters, the grid-connected power converter Because it has the function of preventing the protection of the island effect, it must stop operating, so that it can not output power, which causes the solar power generation line to be unable to be normal under the emergency of power failure, reducing the secret and success. Because of this, the creator feels that the above problems can be improved. He is concentrating on research and cooperating with the application of the theory, and then proposes a design that is reasonable and effective in improving the above-mentioned creation. [New content] The main purpose of this creation is to provide a grid-type solar photovoltaic device with both power failure and backup power supply function, which makes it difficult to structure and achieve the purpose of continuing the operation of the power system. . In order to achieve the above objectives, this creation has both power outage and power supply functions. The grid-connected solar photovoltaic equipment system is connected to the mains and the power supply. The grid-connected solar photovoltaic equipment includes: solar energy equipment; a transformer electrically connected to the solar device; and a control circuit electrically connected between the inverter and the mains, and the control circuit includes: a first circuit, an electric age, the inverter and the Between the mains, and the first circuit is provided with a first switch; the second circuit is electrically connected to the first circuit, the second circuit is provided with a second switch and a continuous electric device; and the third circuit is the third circuit The end is electrically connected to the first circuit, the other end of the third circuit is electrically connected to the continuous electrical device, and the third circuit is provided with a third switch; and the fourth circuit is electrically connected to the Between the first circuit and the load terminal, wherein the plurality of power-on modes are generated by the first switch, the second switch, and the third switch (4) se) and the (Qpen). M384409 The inverter can be used when the mains power is interrupted. The output power of the continuous electrical appliance is continuously operated as a synchronous power source, so that the power generated by the solar power generation is continuously supplied to the load terminal, and when the power failure occurs, the device and the utility power contact (10) gHd)__ power supply load power The purpose of 'can be provided - in line with the protection circuit that still maintains the islanding effect when the power is cut off, and its structure is simple and can reduce the cost, thereby increasing the overall practicability and convenience. In order to be able to further understand this creation For the features, _ and technical content, please refer to the following about the private program and the customs of this creation. Only the reference and the description (4) are provided, which is not used to limit the creation. [Embodiment] Please refer to the 1st A schematic diagram of a circuit block of a power-supply-powered Wei-side type solar photovoltaic device. The grid-connected solar photovoltaic device includes a solar device 110, an inverter 120 (PV inverter, or a power conditioner). , a power converter) and a control circuit (10) for connection to a mains 210 and a load terminal 220. The solar device 110 is a photovoltaic panel (s〇lar M〇dul Es red printing) or photovoltaic hair #- electrical appliance (PVGe surface t〇r), and the inverter 12 is connected to the solar device 11 , the inverter 120 is a grid-connected inverter, and the An isolation switch 121 (such as a case circuit breaker (MCCB)) is connected between the solar device m and the inverter 12A. The control circuit 130 is electrically connected between the inverter 12 and the mains (10). It includes a first circuit A, a second circuit B, a third circuit 〇, and a fourth circuit D. The first circuit is electrically connected between the inverter and the commercial power, and the first circuit is There is a first switch (3), that is, the first switch 131 is disposed between the mains 21 〇 and the fourth circuit D, and the first switch 131 is connected with a sensor 137 (such as a stop sensor), the inverse The transformer 12 and the first switch 5 M384409
Cl之間連接有隔離開關135。該第二電路B係與該第一電路六電性連接， 且該第二電路B設有第二開關132及不斷電器⑽）133，該不斷電器133 連接有電源136 (如充電電池）。該第三電路(：之_端與該第一電路人電性 連接’且該第三電路C之另-端與該不斷電器133電性連接，該第三電路c 設有第三關134,而該第四電路1>電性連接_第—電路丨及該負載端 220之間，且該第四電路!)設有一隔離開關138。該第一開關i3i、該第二 開關132及該第三開關134可為繼電器、電力繼電器㈤赃㈤町)或接觸 器（Contactor)，以藉由該第一開關131、該第二開關132及第三開關134 之導通(close)及關閉（open)而產生複數個供電模式，該些供電模式可分 為第一供電模式及第二供電模式，該第一供電模式（市電21〇正常供電）係 為當該第一開關131及該第二開關132為導通，且該第三_ 134為賴 時，該太陽能裝置110及該市電210提供該負載端220電力；該第二供電 模式(市電210斷電或停電)係為當該第三開關134為導通，且該第一開關 131及該第一開關132為關閉時’該太陽能裝置11〇及該不斷電器133提供 該負載端220電力。 復請參閱第1至3圖所示，為本創作之兼具停電備援供電功能併網型 太陽光電設備之電路方塊及其使用電路方塊示意圖。本創作之兼具停電備 援供電功能併網型太陽光電設備係藉由該第一開關13卜該第二開關132及 第三開關134之導通及關閉而產生複數個供電模式。 如第2圖所示，當市電210正常供電情況下，該第一開關131及該第 一開關132為導通，且該第三開關134為關閉時，由該市電21〇提供々亥逆 變器120所需之電力併網同步源(synchronization Source)，以作為續逆 變器120將該太陽能裝置11〇發電產生之電源轉變成交流電力輸出，該電 力併入該市電210以供給該負載端22()(電源流向u)或回授該市電训 (電源流向L2)，以達到節錢費及減低碳排放等目的。 如第3圖所π ’备市電210電力中斷時’藉由該感測器137啟動一停 電訊號’以將該第一_ 131及該第二開關132 __)，並將該第三 開關134導通，由該電源136經由該不斷電器133輸出給該逆變器12〇，藉 由該不斷電器133之輸出電源作為該逆變器12Q之同步電源，使該逆變器 120取得電力作為繼續運轉，俾於該市電21〇電力中斷時該逆變器12〇將 該太陽能裝置110發電產生之電源輸出至該負端咖（電源流向⑶， 因此’可藉由該第-關m、該第二開關132及該第三開關134構成符合 市電210停電時仍保有防止孤島效應之保護電路，以供在不影響市電21〇 電網之安全下’在日間時段該逆變器12Q可透過該不斷電器133之輸出電 源做為同步電源，使該逆變器12G將該太陽能裝置11Q發電產生之電源持 續供電給該貞載端22G，達到停斜太陽能發電线之電力_運轉之目 的’同時’在夜間時段該太陽能裝置UQ不發電時的情況下，可經由該電 源136釋放電能而由該不斷電器133輸出電力供給負載端22〇。 綜上所述，本創作之兼具停電備援供電功能併網型太陽光電設備係與 -市電210及-負載端220連接，其包括太陽能裝置11〇、與該太陽能裝置 110電性連接之逆變器120以及該逆變器120與該市電210電性連接之控制 電路130，且該控制電路130包括第一開關131、第二開關132、不斷電器 133及第二開關134 ’以藉由該第一開關131、該第二開關132及第三開關 134之導通及關閉而產生複數個供電模式，在市電21〇正常供電情況下，該 M384409 太陽能裝置Π〇發電產生之電源併入該市電210,以達到節省電費及減低碳 排放等目的，而在市電210電力中斷的情況下，可藉由該不斷電器133之 輸出電源作為該逆變器120之同步電源，使該逆變器120可於市電210電 力中斷時持續運轉，轉該太裝置11Q發電產生之電源持續供電給該 負載端220,同時’藉由該第一開關13卜該第二開關132及該第三開關134 構成符合市電210停電時仍保有防止孤島效應之保護電路，即可達到提高 安全性及停電時太陽能發電紐之電力_運轉之目的，進而增加整體之 實用性及便利性者。 以上所述僅為本創作之較佳可行實施例，非因此即偈限本創作之 範圍舉凡運用本創作說财及圖式内容所為之等效結構變化，均理 含於本創作之範圍内，合予陳明。 ^ M384409 I：圖式簡單說明】 第1圖係為本幻作之兼具#電備援供電功能併網型太陽光電設備之電路 方塊示意圖。 第2至3圖’縣本創狀兼具停電備援供電魏伽型太陽光電設儀之 使用電路方塊示意圖》 【主要元件符號說明】An isolation switch 135 is connected between Cl. The second circuit B is electrically connected to the first circuit 6. The second circuit B is provided with a second switch 132 and a continuous electric appliance (10) 133. The continuous electric appliance 133 is connected with a power source 136 (such as a rechargeable battery). The third circuit (the _ terminal is electrically connected to the first circuit) and the other end of the third circuit C is electrically connected to the continual device 133, and the third circuit c is provided with a third switch 134. The fourth circuit 1 > is electrically connected between the first circuit and the load terminal 220, and the fourth circuit!) is provided with an isolating switch 138. The first switch i3i, the second switch 132, and the third switch 134 can be a relay, a power relay (5), or a contactor, by the first switch 131, the second switch 132, and The third switch 134 is turned on and off to generate a plurality of power supply modes. The power supply modes may be divided into a first power supply mode and a second power supply mode. The first power supply mode (mains 21 〇 normal power supply) When the first switch 131 and the second switch 132 are turned on, and the third 134 is the 355, the solar device 110 and the utility 210 provide the load 220 power; the second power mode (the main power 210 The power failure or power failure is such that when the third switch 134 is turned on, and the first switch 131 and the first switch 132 are turned off, the solar device 11 and the continuous electric device 133 provide the load terminal 220 power. Please refer to the figures in Figures 1 to 3 for the circuit block of the grid-connected solar photovoltaic device with power-off backup power supply function and its block diagram. The present invention has a power-off backup power supply function. The grid-connected solar photovoltaic device generates a plurality of power supply modes by turning on and off the first switch 13 and the second switch 132 and the third switch 134. As shown in FIG. 2, when the main power supply 210 is normally powered, the first switch 131 and the first switch 132 are turned on, and when the third switch 134 is turned off, the utility model provides the 々Hui inverter. 120 required power grid synchronization source (synchronization source) to convert the power generated by the solar device 11 as a continuous inverter 120 into an alternating current power output, the power is incorporated into the utility 210 to supply the load terminal 22 () (power flow to u) or feedback the city's electricity training (power flow to L2) to achieve the purpose of saving money and reducing carbon emissions. As shown in FIG. 3, when the power supply 210 is interrupted by the power supply 210, a power-off signal ' is activated by the sensor 137 to turn the first_131 and the second switch 132__), and the third switch 134 is turned on. The power source 136 is output to the inverter 12 via the continuous electric appliance 133, and the output power of the continuous electric appliance 133 is used as the synchronous power supply of the inverter 12Q, so that the inverter 120 obtains electric power as the continuous operation. When the power is interrupted, the inverter 12 outputs the power generated by the solar device 110 to the negative terminal (the power flow direction (3), so 'the first-off m, the second switch can be used 132 and the third switch 134 constitute a protection circuit that maintains an islanding prevention effect when the utility power 210 is powered off, so that the inverter 12Q can pass through the continuous electric appliance 133 during the daytime period without affecting the safety of the commercial power grid 21 The output power source is used as a synchronous power source, so that the inverter 12G continuously supplies power generated by the solar device 11Q to the load port 22G to reach the power of the slanting solar power line _ the purpose of operation 'at the same time' during the night time period sun When the device UQ does not generate power, the power can be discharged through the power source 136, and the power supply device 133 outputs power to the load terminal 22A. In summary, the present invention has both a power failure backup power supply function and a grid type solar photovoltaic device. The device is connected to the mains 210 and the load terminal 220, and includes a solar device 11A, an inverter 120 electrically connected to the solar device 110, and a control circuit 130 electrically connected to the mains 210. The control circuit 130 includes a first switch 131, a second switch 132, a continuous electrical device 133, and a second switch 134' to be turned on and off by the first switch 131, the second switch 132, and the third switch 134. A plurality of power supply modes are generated. In the case of normal power supply of the commercial power supply 21, the power generated by the M384409 solar device is integrated into the commercial power 210 to save electricity and reduce carbon emissions, and the power supply 210 is interrupted. In the following, the output power of the continuous electric appliance 133 can be used as the synchronous power supply of the inverter 120, so that the inverter 120 can continue to operate when the commercial power 210 is interrupted, and the terminal device 11Q is sent. The electrically generated power source continuously supplies power to the load terminal 220, and at the same time, the second switch 132 and the third switch 134 are configured to ensure a protection circuit for preventing the islanding effect when the utility power 210 is powered off. To achieve the purpose of improving the safety and power of the solar power generation during the power outage _ the purpose of operation, and thus increasing the overall practicability and convenience. The above is only a preferred and feasible embodiment of the creation, and therefore is not limited to this creation. The scope of the equivalent structural changes in the use of this creation and the content of the schema are included in the scope of this creation, and are combined with Chen Ming. ^ M384409 I: Simple description of the schema] The first map is based on this fantasy The circuit block diagram of the solar-powered solar-powered device with the electric backup power supply function. Figures 2 to 3 'The county's original creation and power supply backup power supply Wei Jia type solar photovoltaic device using circuit block diagram" [Main component symbol description]
110 太陽能裝置 120 逆變器 121 隔離開關 130 控制電路 131 第一開關 132 第二開關 133 不斷電器 134 第三開關 135 隔離開關 136 電源 137 感測器 138 隔離開關 210 市電 220 負載端 A 第一電路 B 第二電路 9 M384409 c 第三電路 D 第四電路110 Solar device 120 Inverter 121 Isolation switch 130 Control circuit 131 First switch 132 Second switch 133 Continuous electric device 134 Third switch 135 Isolation switch 136 Power supply 137 Sensor 138 Isolation switch 210 Mains 220 Load terminal A First circuit B Second circuit 9 M384409 c third circuit D fourth circuit
Ll、L2、L3 電源流向Ll, L2, L3 power flow direction