TW201407917A - Household power parallel converter applied to solar power generation system with maximum power tracking effect - Google Patents
Household power parallel converter applied to solar power generation system with maximum power tracking effect 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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Abstract
Description
本發明是有關於一種應用於太陽發電系統並具有最大功率追蹤之市電並聯換流器，尤指一種可達到結構簡單、有效降低裝置成本、可增加裝置擴充彈性以及使太陽能發電具有最大輸出效能之功效者。
The invention relates to a utility parallel converter which is applied to a solar power generation system and has maximum power tracking, in particular to a simple structure, an effective reduction of the device cost, an increase in the expansion flexibility of the device and a maximum output efficiency of the solar power generation. Efficacy.
按，太陽能為目前發展最有潛力的再生能源之一。近年來，政府積極推廣再生能源發展，太陽能為近期市場成長最快速也最穩定的能源之ㄧ，因此更成為近年來永續能源中政府積極開發的項目，國內廠商也開始競相角逐太陽光電相關市場，經濟部推動2030年太陽光電推廣目標量高達2500MW。
傳統上太陽能模組以串聯方式來提高足夠電壓使用，但串聯方式容易因為遮蔽效應、灰塵累積、太陽能模組老化與製程不均勻特性，造成太陽能發電效率的降低，因此模組化和小型的太陽能系統逐漸受到重視，也由於具有因地制宜和分散式調節的特色，也容易安裝在一般住宅和工業園區。
然，由於地震和海嘯等相關天然災害，也造成了國內外對於再生能源的需求聲浪高漲，而太陽光電屋頂型政府躉購費率為7.33~10.32元/度，因此，太陽光電產業開始相對受到重視，本發明提出一模組化架構的電路，且能降低成本，期能拓展本所之技術，增加各種再生能源之應用。
在習用的架構下，如中華民國專利第I328730號之「太陽能發電系統之最大功率追蹤方法及裝置」而言，其係使用一最大功率追蹤電路追蹤最大功率點，需額外的電流檢出器來達成輸入功率計算，其成本較高且無模組化並聯的特性，在太陽能系統的成本效益分析上也不符目前期待，且不利於太陽能發電應用的推廣。
且以中華民國專利公開第201037958號之「高效能太陽能系統」觀之，其原理係藉由調整該模組化直流/直流轉換器，搭配一變流器實現太陽能發電系統，其模組化轉換器整合最大功率追蹤功能，雖然可改善太陽能模組串聯造成的效率降低，但增加電路元件成本較高，且兩級式高頻切換設計對於整體電路效率也會造成影響，也成為太陽能發電實際應用的阻礙。
且由美國專利公開第20090284998號之 「Method and system for providing maximum power point tracking in an energy generating system」 來說，其使用通訊界面和數位類比轉換控制追蹤最大功率點，且需額外的電壓電流偵測器來達成擷取再生能源之最大功率，其成本較高且需一複雜或數位化的控制器，應用在太陽能系統上也不符成本效益且不利於再生能源的推廣。
另再以美國專利20100123428「Battery-Charging Device for a Stand-Alone Generator System having a MPPT Function and Method Thereof 」而言，其架構雖然簡單，但仍需偵測輸出電壓電流和計算功率來達到追蹤最大功率點，且需以功率決定電池充電電流，其成本仍較本專利高，應用在太陽能系統上也不符成本效益且不利於再生能源的推廣。
再由美國專利第US7492162號之 「Inverter system 」 架構而言，其仍需偵測輸出電壓電流和計算功率來達到追蹤最大功率點，且需電池感應方式判斷電流資訊，針對輸出短路的保護功能可由磁場變化來感測，雖可以應用於太陽能系統上，其成本仍較本專利高，應用在太陽能系統上也不符成本效益且不利於再生能源的推廣。
有鑑於此，本案之發明人特針對前述習用發明問題深入探討，並藉由多年從事相關產業之研發與製造經驗，積極尋求解決之道，經過長期努力之研究與發展，終於成功的開發出本發明「應用於太陽發電系統並具有最大功率追蹤之市電並聯換流器」，藉以改善習用之種種問題。
According to the solar energy, solar energy is one of the most promising renewable energy sources. In recent years, the government has actively promoted the development of renewable energy. Solar energy is the fastest and most stable energy source in the recent market growth. Therefore, it has become an active development project of sustainable energy in recent years. Domestic manufacturers are also competing to compete in the solar photovoltaic related market. The Ministry of Economic Affairs promoted the goal of solar photovoltaic promotion in 2030 to 2,500 MW.
Traditionally, solar modules have been used in series to increase the use of sufficient voltage, but the series connection is easy to reduce the efficiency of solar power generation due to shadowing effects, dust accumulation, solar module aging and process non-uniformity, so modularized and small solar energy. The system has gradually gained attention, and it is also easy to install in general residential and industrial parks due to its characteristics of local conditions and decentralized adjustment.
However, due to natural disasters such as earthquakes and tsunamis, the demand for renewable energy at home and abroad has also increased, and the solar photovoltaic roof-type government procurement rate is 7.33~10.32 yuan/kWh. Therefore, the solar photovoltaic industry has begun to receive relatively It is emphasized that the present invention proposes a circuit of a modular architecture, and can reduce the cost, and can expand the technology of the Institute and increase the application of various renewable energy sources.
Under the conventional framework, for example, the "maximum power tracking method and device for solar power generation system" of the Republic of China Patent No. I328730, which uses a maximum power tracking circuit to track the maximum power point, requires an additional current detector. To achieve the input power calculation, its high cost and no modular parallel connection characteristics are not expected in the cost-benefit analysis of solar energy systems, and it is not conducive to the promotion of solar power generation applications.
The principle of the high-performance solar energy system of the Republic of China Patent Publication No. 201037958 is to adjust the modular DC/DC converter and implement a solar power generation system with a converter. The integrated power tracking function can improve the efficiency reduction caused by the series connection of solar modules, but increase the cost of circuit components, and the two-stage high-frequency switching design will also affect the overall circuit efficiency, and become the practical application of solar power generation. Obstruction.
In the case of "Method and system for providing maximum power point tracking in an energy generating system", the communication interface and digital analog conversion control are used to track the maximum power point, and additional voltage and current detection is required. In order to achieve the maximum power of renewable energy, its high cost and the need for a complex or digital controller, the application of solar energy systems is not cost-effective and is not conducive to the promotion of renewable energy.
In addition, in the case of the US Patent No. 20100123428 "Battery-Charging Device for a Stand-Alone Generator System having a MPPT Function and Method Thereof", although the architecture is simple, it is still necessary to detect the output voltage current and the calculated power to achieve the tracking maximum power. Point, and need to determine the battery charging current by power, the cost is still higher than this patent, the application in the solar system is not cost-effective and is not conducive to the promotion of renewable energy.
In the "Inverter system" architecture of US Pat. No. 7,492,162, it still needs to detect the output voltage and current and the calculated power to reach the maximum power point, and the battery sensing method is used to judge the current information, and the protection function for the output short circuit can be The magnetic field changes to sense, although it can be applied to solar energy systems, its cost is still higher than this patent, and it is not cost-effective to apply to solar energy systems and is not conducive to the promotion of renewable energy.
In view of this, the inventors of this case have intensively discussed the above-mentioned problems of conventional inventions, and actively pursued solutions through years of experience in R&D and manufacturing of related industries. After long-term efforts in research and development, they finally succeeded in developing this book. Invented "a commercial parallel-connected converter for solar power generation systems with maximum power tracking" to improve the problems of conventional use.
本發明之主要目的係在於，可將直流/交流濾波器與市電並聯，而利用太陽能發電模組將光能轉換成直流電壓源形式輸出，並以MPPT電力轉換器將該直流電轉換成封包與市電電壓同相之高頻電流源，且同時將輸出功率控制到最大，之後再以直流/交流濾波器，輸出一與市電電壓同相且為弦式電流注入至市電，而達到結構簡單、有效降低裝置成本、可增加裝置擴充彈性以及使太陽能發電具有最大輸出效能之功效。
為達上述之目的，本發明係一種應用於太陽發電系統並具有最大功率追蹤之市電並聯換流器，其包含有：一太陽發電模組；一與太陽發電模組連接之MPPT電力轉換器；以及一與MPPT電力轉換器連接之直流/交流濾波器。
於本發明上述實施例中，該太陽發電模組係包含有多數相互並聯之太陽能板。
於本發明上述實施例中，該MPPT電力轉換器係包含有一連接太陽發電模組之電容、一連接電容之開關元件、一連接電容及開關元件之MPPT控制器、一連接開關元件之電感、及一連接電感之二極體。
於本發明上述實施例中，該直流/交流濾波器係包含有一連接MPPT電力轉換器之電容、分別連接電容之第一、第二、第三與第四開關、及一連接第一、第二、第三與第四開關之電感。
於本發明上述實施例中，該第一、第二、第三及第四開關係相互連接。
於本發明上述實施例中，該第一、第二、第三及第四開關係為低頻開關。
The main purpose of the present invention is to convert the DC/AC filter into parallel with the mains, and use the solar power module to convert the light energy into a DC voltage source output, and convert the DC power into a packet and a commercial power by the MPPT power converter. The high-frequency current source with the same phase of voltage, and simultaneously control the output power to the maximum, and then the DC/AC filter, the output is in phase with the mains voltage and the string current is injected into the mains, and the structure is simple and the device cost is effectively reduced. It can increase the flexibility of the device and maximize the output efficiency of solar power generation.
In order to achieve the above object, the present invention is a commercial power parallel converter applied to a solar power generation system and having maximum power tracking, comprising: a solar power generation module; and an MPPT power converter connected to the solar power generation module; And a DC/AC filter connected to the MPPT power converter.
In the above embodiment of the present invention, the solar power generation module includes a plurality of solar panels that are connected in parallel with each other.
In the above embodiment of the present invention, the MPPT power converter includes a capacitor connected to the solar power module, a switching element connected to the capacitor, an MPPT controller connecting the capacitor and the switching element, an inductance connecting the switching element, and A diode connected to the inductor.
In the above embodiment of the present invention, the DC/AC filter includes a capacitor connected to the MPPT power converter, first, second, third, and fourth switches respectively connected to the capacitor, and a first and second connection The inductance of the third and fourth switches.
In the above embodiment of the invention, the first, second, third and fourth open relationships are connected to each other.
In the above embodiment of the present invention, the first, second, third, and fourth open relationships are low frequency switches.
請參閱『第１、２、３及第４圖』所示，係分別為本發明第一實施例之方塊示意圖、本發明第一實施例之使用狀態示意圖、本發明第一實施例之控制訊號產生示意圖及本發明第一實施例之輸入電感電流波形示意圖。如圖所示：本發明係一種應用於太陽發電系統並具有最大功率追蹤之市電並聯換流器，其至少包含有一太陽發電模組１、一MPPT電力轉換器２以及一直流/交流濾波器３所構成。
上述所提之太陽發電模組１係包含有多數相互並聯之太陽能板，而該太陽發電模組１係利用光伏效應將光能轉換成電能，且其電能之輸出係為直流電壓源形式。
該MPPT電力轉換器２係與太陽發電模組１連接，其包含有一連接太陽發電模組１之電容２１、一連接電容２１之開關元件２２、一連接電容２１及開關元件２２之MPPT控制器２３、一連接開關元件２３之電感２４、及一連接電感２４之二極體２５，而該MPPT電力轉換器２係將太陽能發電模組１輸出之直流電轉換成與市電４同相且具有麥當勞封包之高頻電流源形式，同時利用MPPT控制器２３計算並控制開關元件２２，使其將輸出功率控制到最大。
該直流/交流濾波器３係與MPPT電力轉換器２連接，其包含有一連接二極體２５之電容３０、分別連接電容３０之第一、第二、第三與第四開關３１、３２、３３、３４、及一連接第一、第二、第三與第四開關３１、３２、３３、３４之電感３５，其中該第一、第二、第三及第四開關３１、３２、３３、３４係呈相互連接型態之低頻開關，而該直流/交流濾波器３係接收與市電４同相且具有麥當勞封包之高頻電流源經由第一、第二、第三及第四開關３１、３２、３３、３４轉換成交流且經過電容３０及電感３５濾波後，輸出一與市電４電壓同相且為弦式電流注入至市電４。如是，藉由上述之結構構成一全新之應用於太陽發電系統並具有最大功率追蹤之市電並聯換流器。
當本發明於不連續電流模式操作使用時，係以開關元件２２切換控制電感２４儲存能量，再經由二極體２５輸出具有整流後正弦型式封包之脈波電流，再經由輸出電容３０、輸出電感３５及第一、第二、第三及第四開關３１、３２、３３、３４低頻切換為正弦電流至市電４端。
如第３圖所示，其係利用一整流後市電低頻正弦訊號和鋸齒波，比較輸出脈波調變控制訊號(SPWM)至開關元件２２；再由第４圖觀之其係利用控制訊號產生電感電流波形，並具有正弦型式封包之特性，而為讓本發明之電路架構操作在不連續電流模式，最大導通率、輸入電壓與輸出電壓須符合下式：
在第１圖中若電路操作在不連續電流模式，輸入功率可近似為輸入電感儲存功率，可表示為：
其中Lm為輸入電感值，fs為電路切換頻率，ΔIL為電感電流每一切換周期的平均變化量。由第４圖可得ΔIL可表示為：
其中f為市電頻率，N為每一市電周期開關S1切換次數，IP為每一市電周期的尖峰電流，因此，電路輸入的功率可表示為：
其中尖峰電流IP可表示為：
其中DP為最大導通率脈波調變控制訊號，Vc1為輸入電壓，最後輸入功率則可表示成：
上式輸入功率為包含輸入電壓與最大導通率之方程式，若利用設計電路中輸入電感和切換頻率，輸入功率可由輸入電壓與最大導通率可得到，相較於習用的輸入功率由輸入電壓與輸入電流相乘而得到，在實現最大功率追蹤時，本發明不需要輸入電流可得到輸入功率，可節省輸入電流感測器之成本，對於模組化之太陽能電力轉換器中節省之成本更為可觀；且至少使本發明達到下列之優點：
1.具有簡單化之最大功率擷取控制方法電路架構。
2.電路架構為單級設計，減少使用電路元件並降低成本，增加整體電路效率。
3.無需複雜電流感測元件，可減少成本和增加可靠度。
4.電路可模組化設計，增加裝置擴充彈性且改善太陽能模組串聯後的缺點。
請參閱『第５圖』所示，係本發明第二實施例之使用狀態示意圖。如圖所示：本發明除上述第一實施例所提型態之外，亦可為本第二實施例之型態，而其所不同之處係在於，本發明之電路架構係可以模組化方式進行實施設計，而讓多數個太陽發電模組１分別連接MPPT電力轉換器２之後，再與一直流/交流濾波器３連接，藉以可利用控制命令相位之交錯方式可使輸出濾波和效率有更好之表現；進而使本發明能更符合實際使用之所需。
綜上所述，本發明應用於太陽發電系統並具有最大功率追蹤之市電並聯換流器可有效改善習用之種種缺點，可將直流/交流濾波器與市電並聯，而利用太陽能發電模組將光能轉換成直流電壓源形式輸出，並以MPPT電力轉換器將該直流電轉換成與市電同相之高頻電流源，且同時將輸出功率控制到最大，之後再以直流/交流濾波器，輸出一與市電電壓同相且為弦式電流注入至市電，而達到結構簡單、有效降低裝置成本、可增加裝置擴充彈性以及使太陽能發電具有最大輸出效能之功效；進而使本發明之産生能更進步、更實用、更符合消費者使用之所須，確已符合發明專利申請之要件，爰依法提出專利申請。
惟以上所述者，僅為本發明之較佳實施例而已，當不能以此限定本發明實施之範圍；故，凡依本發明申請專利範圍及發明說明書內容所作之簡單的等效變化與修飾，皆應仍屬本發明專利涵蓋之範圍內。
Please refer to the "1, 2, 3, and 4" diagrams, which are respectively a block diagram of a first embodiment of the present invention, a schematic diagram of a state of use of the first embodiment of the present invention, and a control signal of the first embodiment of the present invention. A schematic diagram of the input inductor current waveform of the first embodiment of the present invention is generated. As shown in the figure: the present invention is a commercial parallel converter for solar power generation system and having maximum power tracking, comprising at least one solar power generation module 1, an MPPT power converter 2, and a DC/AC filter 3 Composition.
The solar power module 1 mentioned above comprises a plurality of solar panels connected in parallel with each other, and the solar power module 1 converts light energy into electrical energy by using a photovoltaic effect, and the output of the electrical energy is in the form of a direct current voltage source.
The MPPT power converter 2 is connected to the solar power generation module 1 and includes a capacitor 21 connected to the solar power generation module 1, a switching element 22 connecting the capacitors 21, a connection capacitor 21 and an MPPT controller 23 of the switching element 22. An inductor 24 connected to the switching element 23 and a diode 25 connected to the inductor 24, and the MPPT power converter 2 converts the direct current output from the solar power generation module 1 into phase with the mains 4 and has a high McDonald's package. In the form of a frequency current source, the switching element 22 is calculated and controlled by the MPPT controller 23 to control the output power to the maximum.
The DC/AC filter 3 is connected to the MPPT power converter 2, and includes a capacitor 30 connected to the diode 25, and first, second, third and fourth switches 31, 32, 33 respectively connected to the capacitor 30. And 34, and an inductance 35 connecting the first, second, third and fourth switches 31, 32, 33, 34, wherein the first, second, third and fourth switches 31, 32, 33, 34 The low frequency switch is connected to the interconnect mode, and the DC/AC filter 3 receives the high frequency current source in phase with the mains 4 and has a McDonald's packet via the first, second, third and fourth switches 31, 32, After 33, 34 is converted into AC and filtered by capacitor 30 and inductor 35, the output is in phase with the mains 4 voltage and is injected into the mains 4 for the string current. If so, the above structure constitutes a brand new commercial parallel converter that is applied to the solar power generation system and has maximum power tracking.
When the present invention is used in the discontinuous current mode operation, the switching element 22 switches the control inductor 24 to store energy, and then outputs the pulse current having the rectified sinusoidal type packet via the diode 25, and then passes through the output capacitor 30 and the output inductor. 35 and the first, second, third and fourth switches 31, 32, 33, 34 are low frequency switched to a sinusoidal current to the mains terminal 4.
As shown in Fig. 3, it compares the output pulse-wave modulation control signal (SPWM) to the switching element 22 by using a rectified mains low-frequency sinusoidal signal and a sawtooth wave; and then the fourth signal is generated by the control signal. The inductor current waveform has the characteristics of a sinusoidal type packet, and in order to operate the circuit architecture of the present invention in the discontinuous current mode, the maximum conduction rate, input voltage and output voltage must conform to the following formula:
In Figure 1, if the circuit is operated in discontinuous current mode, the input power can be approximated as the input inductor storage power, which can be expressed as:
Where L m is the input inductance value, f s is the circuit switching frequency, and ΔI L is the average variation of each switching cycle of the inductor current. From Figure 4, ΔI L can be expressed as:
Wherein f is the mains frequency, N for each switching cycle of switch S1 mains frequency, I P is the peak current per mains cycle, therefore, the input power of the circuit can be expressed as:
The peak current I P can be expressed as:
Where D P is the maximum conduction rate pulse wave modulation control signal, V c1 is the input voltage, and the final input power can be expressed as:
The input power of the above formula is an equation including the input voltage and the maximum conduction rate. If the input inductance and the switching frequency are used in the design circuit, the input power can be obtained from the input voltage and the maximum conduction rate, compared with the conventional input power by the input voltage and input. When the current is multiplied, the present invention can obtain the input power without input current, which can save the cost of the input current sensor, and the cost saved in the modular solar power converter is more considerable. And at least the present invention achieves the following advantages:
1. Circuit architecture with simplified maximum power capture control method.
2. The circuit architecture is a single-stage design that reduces the use of circuit components and reduces costs, increasing overall circuit efficiency.
3. Eliminates the need for complex current sensing components, reducing cost and increasing reliability.
4. The circuit can be modularized to increase the flexibility of the device and improve the shortcomings of the solar modules in series.
Please refer to FIG. 5, which is a schematic view showing the state of use of the second embodiment of the present invention. As shown in the figure, the present invention may be in the form of the second embodiment in addition to the above-mentioned first embodiment, and the difference is that the circuit architecture of the present invention can be a module. The implementation mode is implemented, and after the majority of the solar power generation modules 1 are respectively connected to the MPPT power converter 2, and then connected to the DC/AC filter 3, the output filtering and efficiency can be realized by the interleaving of the control command phases. There is better performance; thus, the invention can be more in line with the needs of practical use.
In summary, the utility model is applicable to a solar power generation system and the mains parallel converter with maximum power tracking can effectively improve various disadvantages of the conventional use. The DC/AC filter can be connected in parallel with the commercial power, and the solar power generation module can be used to light. It can be converted into a DC voltage source output, and the DC power is converted into a high-frequency current source in phase with the commercial power by the MPPT power converter, and at the same time, the output power is controlled to the maximum, and then the DC/AC filter is used to output a The utility voltage is in phase and the string current is injected into the mains, and the structure is simple, the device cost is effectively reduced, the expansion flexibility of the device can be increased, and the solar power generation has the maximum output efficiency; thereby making the invention more progressive and practical. It is more in line with the needs of consumers, and it has indeed met the requirements of the invention patent application, and has filed a patent application according to law.
However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; therefore, the simple equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the invention are modified. All should remain within the scope of the invention patent.
1．．．太陽發電模組1. . . Solar power module
2．．．MPPT電力轉換器2. . . MPPT Power Converter
21．．．電容twenty one. . . capacitance
22．．．開關元件twenty two. . . Switching element
23．．．MPPT控制器twenty three. . . MPPT controller
24．．．電感twenty four. . . inductance
25．．．二極體25. . . Dipole
3．．．直流/交流濾波器3. . . DC/AC filter
30．．．電容30. . . capacitance
31．．．第一開關31. . . First switch
32．．．第二開關32. . . Second switch
33．．．第三開關33. . . Third switch
34．．．第四開關34. . . Fourth switch
35．．．電感35. . . inductance
4．．．市電4. . . Mains
第１圖，係本發明第一實施例之方塊示意圖。
第２圖，係本發明第一實施例之使用狀態示意圖。
第３圖，係本發明第一實施例之控制訊號產生示意圖。
第４圖，係本發明第一實施例之輸入電感電流波形示意圖。
第５圖，係本發明第二實施例之使用狀態示意圖。
Fig. 1 is a block diagram showing a first embodiment of the present invention.
Fig. 2 is a schematic view showing the state of use of the first embodiment of the present invention.
Fig. 3 is a schematic diagram showing the generation of control signals in the first embodiment of the present invention.
Fig. 4 is a schematic diagram showing the waveform of an input inductor current according to the first embodiment of the present invention.
Fig. 5 is a schematic view showing the state of use of the second embodiment of the present invention.
1．．．太陽發電模組1. . . Solar power module
2．．．MPPT電力轉換器2. . . MPPT Power Converter
21．．．電容twenty one. . . capacitance
22．．．開關元件twenty two. . . Switching element
23．．．MPPT控制器twenty three. . . MPPT controller
24．．．電感twenty four. . . inductance
25．．．二極體25. . . Dipole
3．．．直流/交流濾波器3. . . DC/AC filter
30．．．電容30. . . capacitance
31．．．第一開關31. . . First switch
32．．．第二開關32. . . Second switch
33．．．第三開關33. . . Third switch
34．．．第四開關34. . . Fourth switch
35．．．電感35. . . inductance
4．．．市電4. . . Mains
Claims (6)
一太陽發電模組；
一MPPT電力轉換器，係與太陽發電模組連接；以及
一直流/交流濾波器，係與MPPT電力轉換器連接。A utility parallel converter for a solar power generation system with maximum power tracking, including:
a solar power module;
An MPPT power converter is connected to the solar power module; and a DC/AC filter is connected to the MPPT power converter.
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| TW101129640A TWI487239B (en) | 2012-08-15 | 2012-08-15 | Household power parallel converter applied to solar power generation system with maximum power tracking effect |
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| Application Number | Priority Date | Filing Date | Title |
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| TW101129640A TWI487239B (en) | 2012-08-15 | 2012-08-15 | Household power parallel converter applied to solar power generation system with maximum power tracking effect |
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| TW201407917A true TW201407917A (en) | 2014-02-16 |
| TWI487239B TWI487239B (en) | 2015-06-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9369063B2 (en) | 2014-10-01 | 2016-06-14 | Industrial Technology Research Institute | Output power adjusting method for inverter |
| TWI788991B (en) * | 2021-09-02 | 2023-01-01 | 義守大學 | Converter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI669589B (en) * | 2018-08-29 | 2019-08-21 | 崑山科技大學 | Maximum power tracking method for solar cell and system thereof suitable for real-time online environment |
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| US7042110B2 (en) * | 2003-05-07 | 2006-05-09 | Clipper Windpower Technology, Inc. | Variable speed distributed drive train wind turbine system |
| US7969133B2 (en) * | 2008-05-14 | 2011-06-28 | National Semiconductor Corporation | Method and system for providing local converters to provide maximum power point tracking in an energy generating system |
| DE102008042199A1 (en) * | 2008-09-18 | 2010-04-01 | Robert Bosch Gmbh | Photovoltaic device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9369063B2 (en) | 2014-10-01 | 2016-06-14 | Industrial Technology Research Institute | Output power adjusting method for inverter |
| TWI788991B (en) * | 2021-09-02 | 2023-01-01 | 義守大學 | Converter |
| US11817782B2 (en) | 2021-09-02 | 2023-11-14 | I Shou University | Inverter having converters with coupled inductors |
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