TWI677182B - Optimized input and output power control solar power supply device and equipment - Google Patents
Optimized input and output power control solar power supply device and equipment Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
一種最佳化輸入輸出功率控制太陽能電源設備,包含分別適用於電連接複數太陽能板且彼此並聯的複數最佳化輸入輸出功率控制太陽能電源裝置,每一太陽能電源裝置包括一開關電路、一電壓轉換電路、一輸出介面,及一控制單元。該開關電路具有一接收對應的太陽能板的一輸入電壓及一輸入電流的輸入端,及一輸出端。該電壓轉換電路接收該輸入電壓及該輸入電流並輸出為一輸出電壓及一輸出電流。該控制單元運算一輸入功率及一輸出功率,並分別根據該輸入功率的值、該輸出功率的值調整該輸入端與該輸出端的導通時間及不導通時間,以取得最佳化的該輸入功率及該輸出功率。藉此,可以達到整體發電效率最佳化。An optimized input and output power control solar power supply device includes a plurality of optimized input and output power control solar power devices respectively suitable for electrically connecting a plurality of solar panels and connected in parallel with each other. Each solar power device includes a switching circuit and a voltage conversion. Circuit, an output interface, and a control unit. The switch circuit has an input terminal for receiving an input voltage and an input current of a corresponding solar panel, and an output terminal. The voltage conversion circuit receives the input voltage and the input current and outputs them as an output voltage and an output current. The control unit calculates an input power and an output power, and adjusts the conduction time and non-conduction time of the input terminal and the output terminal according to the value of the input power and the value of the output power, respectively, to obtain the optimized input power. And the output power. Thereby, the overall power generation efficiency can be optimized.
Description
本發明是有關於一種綠能電源裝置及設備,特別是指一種最佳化輸入輸出功率控制太陽能電源裝置及設備。 The invention relates to a green energy power supply device and equipment, in particular to a solar power supply device and equipment for optimizing input and output power control.
由於石油能源的有限性,近年來,綠能發電科技發展快速,其中,太陽能發電以乾淨無污染、易於取得等因素,成為主要發展技術之一。 Due to the limitation of petroleum energy, in recent years, green energy power generation technology has developed rapidly. Among them, solar power generation has become one of the main development technologies due to clean, pollution-free and easy to obtain factors.
參閱圖1與圖2,習知一種太陽能發電設備,包括複數太陽能板11及一電源裝置12。該電源裝置12具有一電壓轉換電路121,並藉由將該等太陽能板11串聯以得到較高的輸出電壓,然而,若串聯路徑中有老化故障的太陽能板11(如右下破損的太陽能板111)時,會導致電路斷路而無法正常運作,或是如圖1所示有部分的太陽能板11被樹影112、鳥糞等污染物113遮蔽而導致發電效率較低(輸出較低的發電電流)時,則會導致整體電流被發電效率較低的太陽能板11拉低而造成整體發電效率不佳。 Referring to FIG. 1 and FIG. 2, a solar power generation device is known, which includes a plurality of solar panels 11 and a power supply device 12. The power supply device 12 has a voltage conversion circuit 121 and obtains a higher output voltage by connecting the solar panels 11 in series. However, if there is an aging failure solar panel 11 in the series path (such as a broken solar panel at the bottom right) 111), it will cause the circuit to open and fail to operate normally, or a part of the solar panel 11 as shown in Fig. 1 is blocked by tree shadow 112, bird droppings and other pollutants 113, resulting in low power generation efficiency (lower output power generation current) ), The overall current will be pulled down by the solar panel 11 with low power generation efficiency, resulting in poor overall power generation efficiency.
為了解決上述問題,該電源裝置12發展出如圖3所示的 並聯方式,然而,同樣地,當有老化故障的太陽能板11,或是有部分的太陽能板11被陰影遮蔽而導致發電效率較低(輸出較低的發電電壓)時,會導致整體輸出的電壓被拉低而造成整體發電效率不佳。 In order to solve the above problems, the power supply device 12 is developed as shown in FIG. 3. Parallel method, however, similarly, when the solar panel 11 with aging failure or a part of the solar panel 11 is shaded and the power generation efficiency is low (lower output voltage), the overall output voltage will be caused. Being pulled down, resulting in poor overall power generation efficiency.
參閱圖1及圖4,為了解決發電效率較低的太陽能板11拖累整體發電效率的問題,該電源裝置12發展出如圖4所示的方式,先將每一太陽能板11串聯一二極體122後再進行並聯,如此,藉由二極體122本身特性,會將發電效率較低(電壓較低)的太陽能板11自動斷開,以避免發電效率較低的太陽能板11拉低整體電壓,然而,當大部分的太陽能板11皆處於被陰影遮蔽或是僅有少數太陽能板11發電電壓較高時,會導致較高比例的太陽能板11皆是處於被斷開而沒有提供電能的情況,如此,反而會因過多太陽能板11空置而使整體發電效率過低。 Referring to FIG. 1 and FIG. 4, in order to solve the problem that the solar panel 11 with low power generation efficiency drags down the overall power generation efficiency, the power supply device 12 develops a method as shown in FIG. 4, firstly connecting each solar panel 11 in series with a diode. After 122, the parallel connection is performed. In this way, by the characteristics of the diode 122 itself, the solar panel 11 with low power generation efficiency (lower voltage) is automatically disconnected, so that the solar panel 11 with low power generation efficiency does not pull down the overall voltage. However, when most of the solar panels 11 are shaded or only a few solar panels 11 generate high voltage, it will result in a higher proportion of solar panels 11 being disconnected without providing power. In this way, the overall power generation efficiency will be too low because too many solar panels 11 are left vacant.
因此,本發明的目的,即在提供一種能提升發電效率的最佳化輸入輸出功率控制太陽能電源裝置。 Therefore, an object of the present invention is to provide an optimized input and output power control solar power device capable of improving power generation efficiency.
於是,本發明最佳化輸入輸出功率控制太陽能電源裝置,適用於電連接一用於提供一輸入電壓及一輸入電流的太陽能板,並包含一開關電路、一電壓轉換電路、一輸出介面,及一控制單元。 Therefore, the present invention optimizes the input and output power control solar power device, which is suitable for electrically connecting a solar panel for providing an input voltage and an input current, and includes a switch circuit, a voltage conversion circuit, an output interface, and A control unit.
該開關電路適用於接收該輸入電壓及該輸入電流並輸出,包括一電連接該太陽能板並適用於接收該輸入電壓及該輸入電流的輸入端,及一輸出端。 The switching circuit is suitable for receiving the input voltage and the input current and outputting, and includes an input terminal electrically connected to the solar panel and adapted to receive the input voltage and the input current, and an output terminal.
該電壓轉換電路由該開關電路的輸出端接收該輸入電壓及該輸入電流並進行轉換電壓後輸出為一輸出電壓及一輸出電流。 The voltage conversion circuit receives the input voltage and the input current from the output terminal of the switching circuit and converts the voltage to an output voltage and an output current.
該輸出介面電連接該電壓轉換電路並接收該輸出電壓及該輸出電流。 The output interface is electrically connected to the voltage conversion circuit and receives the output voltage and the output current.
該控制單元偵測該輸入電壓、該輸入電流、該輸出電壓及該輸出電流,運算一相關於該輸入電壓與該輸入電流的乘積的輸入功率及一相關於該輸出電壓與該輸出電流的乘積的輸出功率,並根據該輸入功率的值調整該輸入端與該輸出端的導通時間,根據該輸出功率的值調整該輸入端與該輸出端的不導通時間,以取得最佳化的該輸入功率及該輸出功率。 The control unit detects the input voltage, the input current, the output voltage, and the output current, and calculates an input power related to a product of the input voltage and the input current and a product related to the output voltage and the output current. And adjust the conduction time between the input terminal and the output terminal according to the value of the input power, and adjust the non-conduction time between the input terminal and the output terminal according to the value of the output power to obtain the optimized input power and The output power.
本發明之功效在於:藉由該控制單元根據該輸入功率的值調整該輸入端與該輸出端的導通時間,根據該輸出功率的值調整該輸入端與該輸出端的不導通時間,可以取得最佳化的該輸入功率及該輸出功率,以達到整體發電效率最佳化。 The effect of the present invention is that by controlling the control unit to adjust the conduction time between the input terminal and the output terminal according to the value of the input power, and adjusting the non-conduction time between the input terminal and the output terminal according to the value of the output power, the best can be achieved. The input power and the output power are optimized so as to optimize the overall power generation efficiency.
20‧‧‧自調式太陽能電源裝置 20‧‧‧ Self-adjusting solar power device
2‧‧‧開關電路 2‧‧‧Switch circuit
21‧‧‧輸入端 21‧‧‧input
22‧‧‧輸出端 22‧‧‧output
3‧‧‧電壓轉換電路 3‧‧‧Voltage Conversion Circuit
31‧‧‧二極體 31‧‧‧diode
54‧‧‧過電流保護電路 54‧‧‧Overcurrent protection circuit
6‧‧‧控制單元 6‧‧‧Control unit
61‧‧‧控制電路 61‧‧‧Control circuit
62‧‧‧輸出電流偵測電路 62‧‧‧Output current detection circuit
63‧‧‧輸出電壓偵測電路 63‧‧‧Output voltage detection circuit
8‧‧‧太陽能板 8‧‧‧ solar panel
32‧‧‧電感 32‧‧‧Inductance
33‧‧‧電容 33‧‧‧Capacitor
4‧‧‧輸出介面 4‧‧‧ output interface
5‧‧‧保護單元 5‧‧‧ protection unit
51‧‧‧輸入電容 51‧‧‧input capacitor
52‧‧‧輸出電容 52‧‧‧output capacitor
53‧‧‧避雷保護電路 53‧‧‧Lightning protection circuit
9‧‧‧負載 9‧‧‧ load
Vi‧‧‧輸入電壓 Vi‧‧‧ input voltage
Vo‧‧‧輸出電壓 Vo‧‧‧ output voltage
Ii‧‧‧輸入電流 Ii‧‧‧Input current
Io‧‧‧輸出電流 Io‧‧‧Output current
Wi‧‧‧輸入功率 Wi‧‧‧ input power
Wo‧‧‧輸出功率 Wo‧‧‧ Output Power
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是習知一種太陽能發電設備的複數太陽能板的示意圖;圖2是習知該太陽能發電設備的電路示意圖;圖3是習知另一種太陽能發電設備的電路示意圖;圖4是習知第三種太陽能發電設備的電路示意圖;圖5是本發明最佳化輸入輸出功率控制太陽能電源設備的一實施例的一應用示意圖;圖6是該實施例的一最佳化輸入輸出功率控制太陽能電源裝置于應用時的一電路示意圖;及圖7是該實施例的該最佳化輸入輸出功率控制太陽能電源裝置的一控制信號、一輸入電壓、一輸入電流、一輸入功率、一輸出電壓、一輸出電流,及一輸出功率的波形示意圖。 Other features and effects of the present invention will be described with reference to the embodiments of the drawings. 1 is a schematic diagram of a plurality of solar panels of a conventional solar power generation device; FIG. 2 is a schematic circuit diagram of the solar power generation device; FIG. 3 is a schematic circuit diagram of another solar power generation device; 4 is a schematic circuit diagram of a conventional third type of solar power generation equipment; FIG. 5 is an application schematic diagram of an embodiment of optimizing input and output power control solar power equipment of the present invention; and FIG. 6 is an optimization of the embodiment A schematic circuit diagram of an input-output power control solar power device in application; and FIG. 7 is a control signal, an input voltage, an input current, and an input power of the optimized input-output power control solar power device of the embodiment. , A waveform diagram of an output voltage, an output current, and an output power.
參閱圖5、圖6及圖7,本發明最佳化輸入輸出功率控制太陽能電源設備的一實施例,適用於電連接複數太陽能板8,每一太陽能板8用於提供一輸入電壓Vi及一輸入電流Ii,該最佳化輸入輸出功率控制太陽能電源設備包含複數最佳化輸入輸出功率控制太陽能電源裝置20。 Referring to FIG. 5, FIG. 6 and FIG. 7, an embodiment of the present invention for optimizing input and output power control solar power equipment is suitable for electrically connecting a plurality of solar panels 8. The input current Ii, the optimized input and output power control solar power device includes a plurality of optimized input and output power control solar power devices 20.
該等最佳化輸入輸出功率控制太陽能電源裝置20彼此並 聯,且分別適用於電連接該等太陽能板8,每一最佳化輸入輸出功率控制太陽能電源裝置20包括一開關電路2、一電壓轉換電路3、一輸出介面4、一保護單元5,及一控制單元6。 The optimized input and output powers control the solar power devices 20 in parallel with each other. And are respectively suitable for electrically connecting the solar panels 8, each of the optimized input and output power control solar power devices 20 includes a switch circuit 2, a voltage conversion circuit 3, an output interface 4, a protection unit 5, and A control unit 6.
其中,值得一提的是,由於該最佳化輸入輸出功率控制太陽能電源裝置20與該太陽能板8為一對一電連接,因此在實際出售使用時,也能僅有單一個最佳化輸入輸出功率控制太陽能電源裝置20與單一個太陽能板8的組合情況,能供使用者單組採購或是多組採購後再進行組裝。 Among them, it is worth mentioning that since the optimized input and output power control solar power supply device 20 is electrically connected to the solar panel 8 one by one, it can only have a single optimized input when it is actually sold and used. The combination of the output power control solar power device 20 and a single solar panel 8 can be used by a user for single group purchase or multiple group purchases before assembly.
該開關電路2適用於接收該輸入電壓Vi及該輸入電流Ii並輸出,具有一電連接該太陽能板8並適用於接收該輸入電壓Vi及該輸入電流Ii的輸入端21,及一輸出端22,該開關電路2受一控制信號控制以使該輸入端21與該輸出端22間於導通及不導通間切換。 The switching circuit 2 is adapted to receive and output the input voltage Vi and the input current Ii, and has an input terminal 21 electrically connected to the solar panel 8 and adapted to receive the input voltage Vi and the input current Ii, and an output terminal 22 The switch circuit 2 is controlled by a control signal to switch between the input terminal 21 and the output terminal 22 between conducting and non-conducting.
該電壓轉換電路3由該開關電路2的輸出端22接收該輸入電壓Vi及該輸入電流Ii並進行轉換電壓後輸出為一輸出電壓Vo及一輸出電流Io。其中,該電壓轉換電路3能為一降壓電路,並具有一二極體31、一電感32及一電容33,但其實施方式及所具有的電路元件皆能依實際需求而改變,不以此為限。 The voltage conversion circuit 3 receives the input voltage Vi and the input current Ii from the output terminal 22 of the switching circuit 2 and converts the voltage to an output voltage Vo and an output current Io. The voltage conversion circuit 3 can be a step-down circuit and has a diode 31, an inductor 32, and a capacitor 33. However, its implementation and circuit components can be changed according to actual needs. This is limited.
該輸出介面4電連接於該電壓轉換電路3並接收該輸出電壓Vo及該輸出電流Io。 The output interface 4 is electrically connected to the voltage conversion circuit 3 and receives the output voltage Vo and the output current Io.
該保護單元5具有一並聯於該太陽能板8的輸入電容51、一並聯於該輸出介面4的輸出電容52、一並聯於該太陽能板8的避雷保護電路53,及一電連接於該電壓轉換電路3與該輸出介面4間並用於偵測該輸出電流Io的過電流保護電路54。 The protection unit 5 has an input capacitor 51 connected in parallel to the solar panel 8, an output capacitor 52 connected in parallel to the output interface 4, a lightning protection circuit 53 connected in parallel to the solar panel 8, and an electrical connection to the voltage converter. An overcurrent protection circuit 54 between the circuit 3 and the output interface 4 and configured to detect the output current Io.
該控制單元6具有一輸出該控制信號的控制電路61、電連接該輸出介面4的一輸出電流偵測電路62及一輸出電壓偵測電路63。 The control unit 6 has a control circuit 61 that outputs the control signal, an output current detection circuit 62 and an output voltage detection circuit 63 that are electrically connected to the output interface 4.
該控制電路61偵測該輸入電壓Vi、該輸入電流Ii、該輸出電壓Vo及該輸出電流Io,運算一相關於該輸入電壓Vi與該輸入電流Ii的乘積的輸入功率Wi及一相關於該輸出電壓Vo與該輸出電流Io的乘積的輸出功率Wo,並根據該輸入功率Wi的值調整該輸入端21與該輸出端22的導通時間,根據該輸出功率Wo的值調整該輸入端21與該輸出端22的不導通時間,以取得最佳化的該輸入功率Wi及該輸出功率Wo。 The control circuit 61 detects the input voltage Vi, the input current Ii, the output voltage Vo, and the output current Io, and calculates an input power Wi related to a product of the input voltage Vi and the input current Ii and a value related to the The output power Wo, which is the product of the output voltage Vo and the output current Io, is used to adjust the on-time of the input terminal 21 and the output terminal 22 according to the value of the input power Wi. The input terminal 21 and the output terminal Wo are adjusted according to the value of the output power Wo. The non-conduction time of the output terminal 22 to obtain the optimized input power Wi and the output power Wo.
該控制電路61於該輸入端21與該輸出端22的導通期間,運算該輸入功率Wi,並於該輸入功率Wi的值的變化趨勢由增加轉為減少時,控制該輸入端21與該輸出端22間切換為不導通。 The control circuit 61 calculates the input power Wi during the conduction period between the input terminal 21 and the output terminal 22, and controls the input terminal 21 and the output when the change trend of the value of the input power Wi changes from increasing to decreasing. The terminals 22 are switched off.
該控制電路61每隔一單位時間以下列公式運算該輸入功率Wi,其中,t為取樣時間,T為單位時間:
該控制電路61每隔一單位時間以下列公式運算該輸出功率Wo:
該控制電路61于該避雷保護電路53偵測到高於一突波值的突波時,控制該開關電路2的該輸入端21與該輸出端22間不導通。 When the lightning protection circuit 53 detects a surge higher than a surge value, the control circuit 61 controls the input terminal 21 and the output terminal 22 of the switch circuit 2 to be non-conductive.
該控制電路61於該過電流保護電路54偵測到該輸出電流Io高於一過電流值時,控制該開關電路2的該輸入端21與該輸出端22間不導通。 The control circuit 61 controls the input terminal 21 and the output terminal 22 of the switch circuit 2 to be non-conductive when the overcurrent protection circuit 54 detects that the output current Io is higher than an overcurrent value.
該輸出電流偵測電路62及該輸出電壓偵測電路63分別用於偵測該輸出電流Io及該輸出電壓Vo並輸出偵測結果至該控制電路61。 The output current detection circuit 62 and the output voltage detection circuit 63 are respectively used to detect the output current Io and the output voltage Vo and output detection results to the control circuit 61.
于實際應用時,每一太陽能板8是搭配一最佳化輸入輸出功率控制太陽能電源裝置20,每個最佳化輸入輸出功率控制太陽能 電源裝置20彼此間並聯並電連接至一負載9。 In practical applications, each solar panel 8 is equipped with an optimized input and output power control solar power device 20, and each optimized input and output power controls solar power. The power supply devices 20 are connected in parallel with each other and are electrically connected to a load 9.
當該控制信號切換到高電平時,該開關電路2導通,此時由於該電感32的影響,該輸入電流Ii會開始持續上升,而該輸入電壓Vi則是緩慢下降,使該輸入功率Wi呈現持續上升的波形,當到了某個臨界點時,該輸入電壓Vi會下降到使該輸入功率Wi的變化趨勢由增加轉為減少,此時,該控制單元6控制該開關電路2切換為不導通。 When the control signal is switched to a high level, the switch circuit 2 is turned on. At this time, due to the influence of the inductor 32, the input current Ii will start to continuously rise, and the input voltage Vi will slowly decrease, so that the input power Wi appears. For a continuously rising waveform, when a certain critical point is reached, the input voltage Vi will drop to change the input power Wi from increasing to decreasing. At this time, the control unit 6 controls the switching circuit 2 to switch to non-conducting. .
接著,於不導通期間,該輸出電壓Vo會持續上升,該輸出電流Io則是緩慢減少,使該輸出功率Wo呈現持續上升的波形,同樣到了某個臨界點時,該輸出電流Io會下降到使該輸出功率Wo的變化趨勢由增加轉為減少,此時,該控制單元6控制該開關電路2切換為導通。 Then, during the non-conducting period, the output voltage Vo will continue to rise, and the output current Io will slowly decrease, so that the output power Wo will show a continuously rising waveform. Similarly, at a certain critical point, the output current Io will drop to The change trend of the output power Wo is changed from increasing to decreasing. At this time, the control unit 6 controls the switching circuit 2 to be switched on.
藉此,可以使該輸入功率Wi及該輸出功率Wo的輸出提升到最大值,因此可以得到最佳化的該輸入功率Wi及該輸出功率Wo。 Thereby, the output of the input power Wi and the output power Wo can be increased to the maximum value, and thus the optimized input power Wi and the output power Wo can be obtained.
其中,於圖7中,該輸入功率Wi的總面積大小與陽光、該輸入電壓Vi,及該輸入電流Ii的大小為正相關,該輸出功率Wo的總面積大小與該輸出電壓Vo,及該輸出電流Io的大小(與負載的變化相關)為正相關。 Wherein, in FIG. 7, the total area of the input power Wi is positively related to the sunlight, the input voltage Vi, and the input current Ii. The total area of the output power Wo is related to the output voltage Vo, and the The magnitude of the output current Io (related to the load change) is positively correlated.
當該最佳化輸入輸出功率控制太陽能電源裝置20所電連 接的該負載9被移除而為空載狀態時,由於此時該最佳化輸入輸出功率控制太陽能電源裝置20仍維持在並聯狀態,因此,能輸出較高輸出電壓Vo的最佳化輸入輸出功率控制太陽能電源裝置20即會對輸出較低輸出電壓Vo的最佳化輸入輸出功率控制太陽能電源裝置20回灌電流而造成內部電源無謂地損耗,為避免這樣的現象,能藉由該控制電路61進行控制,說明如下:由於本實施例中每一最佳化輸入輸出功率控制太陽能電源裝置20的電壓轉換電路3為降壓電路,因此,當空載時,該輸出電壓Vo會被拉高至趨近於該輸入電壓Vi,而在連接上負載9後,則會被負載9拉低至所需的工作電壓,因此,能預先設定一較接近該輸入電壓Vi的高預定值,及一較接近該工作電壓的低預定值,於該輸出電壓Vo大於該高預定值時,該控制電路61即判定目前沒有負載9,控制該開關電路2的該輸入端21與該輸出端22間不導通以停止輸出該太陽能板8的電源,以避免內部損耗,而於該輸出電壓Vo小於該低預定值時,該控制電路61即判定目前已連接負載9,所以控制該開關電路2的該輸入端21與該輸出端22間重新導通以重新輸出該太陽能板8的電源。 When the optimized input and output power is controlled by the solar power supply device 20, When the connected load 9 is removed and is in the no-load state, since the optimized input and output power control solar power device 20 is still maintained in a parallel state at this time, an optimized input capable of outputting a higher output voltage Vo The output power control of the solar power supply device 20 will optimize the output of the lower output voltage Vo. The input and output power control of the solar power supply device 20 will recharge the current and cause unnecessary loss of the internal power supply. In order to avoid such a phenomenon, the control The circuit 61 performs control and is explained as follows: Since the voltage conversion circuit 3 of each of the optimized input and output power control solar power devices 20 in this embodiment is a step-down circuit, the output voltage Vo will be pulled when no-load High to approach the input voltage Vi, and when connected to the load 9, it will be pulled down to the required operating voltage by the load 9, therefore, a high predetermined value closer to the input voltage Vi can be set in advance, and A low predetermined value closer to the operating voltage, when the output voltage Vo is greater than the high predetermined value, the control circuit 61 determines that there is currently no load 9, and controls the switching circuit 2 The input terminal 21 and the output terminal 22 are not connected to stop outputting the power of the solar panel 8 to avoid internal loss. When the output voltage Vo is less than the low predetermined value, the control circuit 61 determines that the load 9 is currently connected. Therefore, the input terminal 21 and the output terminal 22 of the switch circuit 2 are controlled to be re-conducted to output the power of the solar panel 8 again.
經由以上的說明,能將本實施例的優點歸納如下: Through the above description, the advantages of this embodiment can be summarized as follows:
一、藉由該控制單元6根據該輸入功率Wi的值調整該輸入端21與該輸出端22的導通時間,根據該輸出功率Wo的值調整該 輸入端21與該輸出端22的不導通時間,可以取得最佳化的該輸入功率Wi及該輸出功率Wo,以達到整體發電效率最佳化。 First, the control unit 6 adjusts the conduction time between the input terminal 21 and the output terminal 22 according to the value of the input power Wi, and adjusts the time according to the value of the output power Wo. The non-conduction time between the input terminal 21 and the output terminal 22 can obtain the optimized input power Wi and the output power Wo, so as to optimize the overall power generation efficiency.
再者,由於該最佳化輸入輸出功率控制太陽能電源裝置20與該太陽能板8為一對一電連接,相較于習知技術中是以一電源裝置電連接複數太陽能板,習知的電源裝置的電路設計較複雜,且功率負荷較大,本案則能使用較精簡及較低功率負荷的電路設計,且藉由一對一的模塊化設計,能單組出售而兼顧對太陽能使用需求較少的消費者族群,且在組裝維修更換時皆具有較大的便利性。 Furthermore, since the optimized input and output power control solar power supply device 20 is electrically connected to the solar panel 8 one-to-one, compared with the conventional technology, a power supply device is used to electrically connect a plurality of solar panels. The circuit design of the device is more complicated and the power load is larger. In this case, a simpler and lower power load circuit design can be used. With a one-to-one modular design, it can be sold in a single group while taking into account the demand for solar energy. Fewer consumer groups and greater convenience in assembly, maintenance and replacement.
二、藉由該控制單元6於該輸入功率Wi的值的變化趨勢由增加轉為減少時,控制該輸入端21與該輸出端22間切換為不導通,及於該輸出功率Wo的值的變化趨勢由增加轉為減少時,控制該輸入端21與該輸出端22間切換為導通,可以使該輸入功率Wi及該輸出功率Wo的輸出提升到最大值,達到整體發電效率最佳化。 Second, when the control unit 6 changes the value of the input power Wi from increasing to decreasing, controlling the input terminal 21 and the output terminal 22 to switch to non-conducting and the value of the output power Wo When the change trend is changed from increasing to decreasing, controlling the input terminal 21 and the output terminal 22 to switch to conduction can increase the output of the input power Wi and the output power Wo to the maximum value, and optimize the overall power generation efficiency.
三、藉由於每一最佳化輸入輸出功率控制太陽能電源裝置20中設置該輸出電壓偵測電路63,並搭配該控制電路61於該輸出電壓Vo大於該高預定值時,控制該開關電路2的該輸入端21與該輸出端22間不導通,並於該輸出電壓Vo小於該低預定值時,控制該開關電路2的該輸入端21與該輸出端22間重新導通,可以避免該等最佳化輸入輸出功率控制太陽能電源裝置20在沒有連接到負載9時彼此回灌電流而造成內部電源無謂損耗,還可以在連接到負載9 後自動回復正常運作,因此,具有減少電源損耗與使用便利的功效。 3. The output voltage detection circuit 63 is set in the solar power supply device 20 due to each optimized input and output power control, and is matched with the control circuit 61 to control the switch circuit 2 when the output voltage Vo is greater than the high predetermined value. The input terminal 21 and the output terminal 22 are not conductive, and when the output voltage Vo is less than the low predetermined value, controlling the re-conduction between the input terminal 21 and the output terminal 22 of the switching circuit 2 can avoid such problems. Optimize the input and output power control. The solar power supply device 20 recharges each other when it is not connected to the load 9 and causes unnecessary loss of internal power. It can also be connected to the load 9 It automatically resumes normal operation afterwards, so it has the effect of reducing power loss and convenience.
四、藉由於每一最佳化輸入輸出功率控制太陽能電源裝置20中設置該避雷保護電路53、該過電流保護電路54,可以保護該太陽能板8、該最佳化輸入輸出功率控制太陽能電源裝置20避免受到雷擊突波及過電流損壞,增加產品的使用壽命。 4. The lightning protection circuit 53 and the overcurrent protection circuit 54 are provided in each of the solar power supply devices 20 for controlling the optimized input and output power to protect the solar panel 8. The optimized input and output power controls the solar power device 20 to avoid lightning surge and overcurrent damage, increase product life.
五、藉由於每一最佳化輸入輸出功率控制太陽能電源裝置20中設置該輸入電容51、該輸出電容52,可以減少該輸入電壓Vi、該輸出電壓Vo的漣波情況,達到較佳的穩壓效果。 5. By setting the input capacitor 51 and the output capacitor 52 in the solar power device 20 for each optimized input and output power control, the ripple conditions of the input voltage Vi and the output voltage Vo can be reduced to achieve better stability.压 效应。 The effect.
綜上所述,所以確實能達成本發明的目的。 In summary, the purpose of the 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 are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, any simple equivalent changes and modifications made according to the scope of the patent application and the contents of the patent specification of the present invention are still Within the scope of the invention patent.
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