TWI420772B - Wind-powered output power regulating circuit - Google Patents
Wind-powered output power regulating circuit Download PDFInfo
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- TWI420772B TWI420772B TW099110645A TW99110645A TWI420772B TW I420772 B TWI420772 B TW I420772B TW 099110645 A TW099110645 A TW 099110645A TW 99110645 A TW99110645 A TW 99110645A TW I420772 B TWI420772 B TW I420772B
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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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Description
本發明係關於一種用於併聯市電之風力發電之電能處理電路，特別是關於一種風力發電機之輸出功率調節電路。The present invention relates to an electric energy processing circuit for wind power generation in parallel mains, and more particularly to an output power adjusting circuit of a wind power generator.
目前，全球正嚴重面臨能源短缺的問題，許多業者因此而紛紛投入相關替代性能源之研究及開發，其中又以綠色能源為重點的發展方向之一。所謂綠色能源即自然環境中能重複利用且不造成環境污染之能源，例如太陽能、潮汐能、洋流能及風力能等。特別是風力能之利用，由於風力資源取得容易，因此風力發電單元可隨處設置，使得風力發電平台的發展成為目前綠色能源產業中的首要選項。At present, the world is facing serious problems of energy shortage. Many companies have invested in research and development of alternative energy sources, among which green energy is one of the development directions. The so-called green energy is energy that can be reused in the natural environment and does not cause environmental pollution, such as solar energy, tidal energy, ocean current energy and wind energy. In particular, the use of wind energy, due to the easy acquisition of wind resources, the wind power unit can be set anywhere, making the development of wind power platform become the primary option in the current green energy industry.
風力發電機主要係由一扇葉組、一變速箱、一發電機及一電能轉換器構成，該扇葉組結合該變速箱，且該變速箱結合該發電機，該發電機之輸出電性連接該電能轉換器。藉此，當該風力發電機之扇葉組風能引動時，該扇葉組帶動該變速箱轉動，且該發電機由於係與該變速箱結合而變速旋轉，此時，該發電機將轉動時的機械能轉換為電能輸出至該電能轉換器，並透過該電能轉換器之轉換產生一穩定之電能，供應至一負載或併入市電。The wind power generator is mainly composed of a blade group, a gearbox, a generator and an electric energy converter. The fan blade group is combined with the gearbox, and the gearbox is combined with the generator, and the output power of the generator is Connect the power converter. Thereby, when the wind energy of the fan blade group of the wind power generator is induced, the fan blade group drives the gearbox to rotate, and the generator rotates in a variable speed due to the combination with the gearbox, and at this time, the generator will rotate The mechanical energy is converted into electrical energy output to the electrical energy converter, and a stable electrical energy is generated by the conversion of the electrical energy converter, supplied to a load or incorporated into the commercial power.
然而，一般而言，上述風力發電機用於倂聯市電時具有以下缺點：However, in general, the above wind turbines have the following disadvantages when used in connection with utility power:
1、電能轉換器之儲能元件之損壞：在能量轉換之過程中，該風力發電機需要進行電能管理，因此電能轉換器需要設置如儲能電容及蓄電池等元件，由於該風力發電機之能量來源係取自於風能，當外界風能過大的情況下，使轉換之電能超過該儲能元件最大容量之限制，而造成過充狀況，其將導致電能轉換器之儲能元件之損壞，或縮短該儲能元件之使用壽命。1. Damage of the energy storage component of the electric energy converter: During the energy conversion process, the wind power generator needs to perform power management, so the electric energy converter needs to set components such as a storage capacitor and a battery, due to the energy of the wind generator The source is derived from wind energy. When the external wind energy is too large, the converted electrical energy exceeds the limit of the maximum capacity of the energy storage component, resulting in an overcharge condition, which will cause damage to the energy storage component of the power converter. Or shorten the service life of the energy storage component.
2、孤島效應導致風力發電機之損壞：由於該風力發電機同時並聯該負載及市電系統，當負載或市電系統需要進行設備之檢修作業而被予以斷電時，因外界風力的關係，該風力發電機仍持續運作，但此時該風力發電機產生之能量無法送入市電，因而導致該風力發電機極容易超越其最大額定轉速而有損壞之虞。2. The islanding effect causes damage to the wind turbine: Since the wind turbine simultaneously parallels the load and the mains system, when the load or the mains system needs to be repaired by the equipment and is powered off, the wind is due to the external wind. The generator is still in operation, but at this time the energy generated by the wind turbine cannot be sent to the mains, which makes the wind generator extremely easy to exceed its maximum rated speed and cause damage.
基於上述原因，有必要進一步改良上述習用風力發電機等缺點。For the above reasons, it is necessary to further improve the disadvantages of the above-mentioned conventional wind power generators.
本發明主要目的係提供一種用於併聯市電之風力發電之輸出功率調節電路，以提高電能轉換器之儲能元件之功效。The main object of the present invention is to provide an output power adjustment circuit for wind power generation in parallel mains to improve the efficiency of the energy storage components of the power converter.
本發明次要目的係提供一種用於併聯市電之風力發電之輸出功率調節電路，以避免孤島效應導致風力發電機之損壞。A secondary object of the present invention is to provide an output power conditioning circuit for wind power generation in parallel mains to avoid damage to the wind turbine caused by the islanding effect.
根據本發明用於併聯市電之風力發電之輸出功率調節電路，包含一電能輸入埠、一電能輸出埠及一功率調節組件。該電能輸入埠與該電能輸出埠相互並接，該電能輸入埠係供並接一發電機之一定子線圈，該電能輸出埠係供並接一儲能單元及一電能轉換器；該功率調節組件包含一啟動開關及一調節電阻，該啟動開關係與該調節電阻相互串聯連接，該啟動開關及該調節電阻所構成的串聯電路與該電能輸出埠並聯；其中該功率調節組件之啟動開關受控於一外部控制信號形成導通狀態時，該功率調節組件用以調節該發電機、該儲能單元及該電能轉換器之間的功率。The output power regulating circuit for wind power generation in parallel mains according to the present invention comprises an electric energy input port, an electric energy output port, and a power regulating component. The power input port and the power output port are mutually connected, and the power input port is connected to a stator coil of a generator, and the power output system is connected to an energy storage unit and a power converter; the power adjustment The component includes a start switch and an adjustment resistor, the start-up relationship and the adjustment resistor are connected in series with each other, and the series circuit formed by the start switch and the adjustment resistor is connected in parallel with the power output 埠; wherein the start switch of the power adjustment component is The power adjustment component is configured to adjust power between the generator, the energy storage unit, and the power converter when an external control signal is in an on state.
為讓本發明之上述之他目的、特徵及優點能更明顯易懂，下文特舉本發明之較佳實施例，並配合所附圖式，作詳細說明如下：請參照第1圖所示，其揭示一風力發電單元1、本發明第一實施例之輸出功率調節電路2、一儲能單元3及一電能轉換器4之電路連接示意圖。上述單元構成一風力發電系統，該風力發電系統係可供應一負載電能，並與一市電系統併聯運轉。The above described objects, features, and advantages of the present invention will become more apparent from the aspects of the invention. It discloses a circuit connection diagram of a wind power generation unit 1, an output power adjustment circuit 2, an energy storage unit 3 and a power converter 4 according to the first embodiment of the present invention. The above unit constitutes a wind power generation system that supplies a load of electrical energy and operates in parallel with a mains system.
該風力發電單元1包含一扇葉組11、一變速箱12及一發電機13。該扇葉組11在受風能引動時，可驅動該變速箱12轉動，並帶動該發電機13變速以較高轉速旋轉，使該發電機13之一定子線圈131感應一電流，該電流並自該定子線圈131加以輸出。The wind power unit 1 includes a blade group 11, a gearbox 12, and a generator 13. The fan blade group 11 can drive the gearbox 12 to rotate when driven by the wind energy, and drive the generator 13 to rotate at a higher rotation speed, so that one of the stator coils 131 of the generator 13 induces a current, and the current is The stator coil 131 is outputted.
本發明第一實施例之輸出功率調節電路2具有一電能輸入埠21及一電能輸出埠22，該電能輸入埠21與該電能輸出埠22相互並接，該輸出功率調節電路2之電能輸入埠21供並接該發電機13之定子線圈131；而該輸出功率調節電路2之電能輸出埠22供並接該儲能單元3及該電能轉換器4。該電能轉換器4另連接到一負載及一市電系統(未繪示)。該風力發電單元1及該儲能單元3之間設有一全波整流二極體組D，以便透過該全波整流二極體組D將該風力發電單元1及該輸出功率調節電路2所產生之交流形式之電流全波整流為一直流形式之電流，該直流形式之電流可饋入該電能轉換器4進行電能轉換，該轉換出的電能可進一步供應至該負載或選擇併入市電。The output power adjustment circuit 2 of the first embodiment of the present invention has a power input port 21 and a power output port 22, and the power input port 21 and the power output port 22 are connected to each other, and the power input of the output power adjusting circuit 2 21 is connected to the stator coil 131 of the generator 13; and the power output 22 of the output power adjusting circuit 2 is connected to the energy storage unit 3 and the power converter 4. The power converter 4 is further connected to a load and a mains system (not shown). A full-wave rectifying diode set D is disposed between the wind power generating unit 1 and the energy storage unit 3 to generate the wind power generating unit 1 and the output power adjusting circuit 2 through the full-wave rectifying diode set D. The alternating current is fully wave rectified into a current in the form of a direct current that can be fed into the power converter 4 for electrical energy conversion, the converted electrical energy being further supplied to the load or selectively incorporated into the mains.
本發明第一實施例之輸出功率調節電路2另具有一功率調節組件23。該功率調節組件23係並聯於該電能輸出埠22。該功率調節組件23進一步包含一啟動開關231及一調節電阻232；該啟動開關231係與該調節電阻232相互串聯連接，串聯的該啟動開關231及該調節電阻232再與該電能輸出埠22並聯；該啟動開關231係可為一機械式開關(如繼電器)或一電子式開關(如TRIAC)，而該啟動開關231為因應頻繁切換之操作，較佳係選擇電子式開關；該調節電阻232之作用係用以降低該儲能單元3及該電能轉換器4之電壓，因此，該調節電阻232較佳係為一小額定電阻，例如選自一5~10歐姆電阻值之電阻，且該調節電阻232因需要承受大電流，而選擇設置一高功率電阻，該高功率電阻具有一散熱片，以便大電流通過該高功率電阻產生之熱量得以藉由該散熱片進行散熱。The output power adjustment circuit 2 of the first embodiment of the present invention further has a power adjustment component 23. The power conditioning component 23 is coupled in parallel to the electrical energy output port 22. The power adjustment component 23 further includes a start switch 231 and an adjustment resistor 232. The start switch 231 is connected in series with the adjustment resistor 232. The start switch 231 and the adjustment resistor 232 connected in series are connected in parallel with the power output 埠22. The start switch 231 can be a mechanical switch (such as a relay) or an electronic switch (such as a TRIAC), and the start switch 231 is an electronic switch that is preferably switched in response to frequent switching; the adjusting resistor 232 The function is to reduce the voltage of the energy storage unit 3 and the power converter 4, therefore, the adjustment resistor 232 is preferably a small rated resistor, for example, a resistor selected from a 5-10 ohm resistor value, and The regulating resistor 232 is configured to receive a high-current resistor, and the high-power resistor has a heat sink, so that the heat generated by the high current through the high-power resistor can be dissipated by the heat sink.
請再參照第1圖所示，本發明第一實施例之功率調節組件23之啟動開關231供耦接一控制器5，該控制器5用以偵測該電能轉換器4之一直流輸入電壓，並依據該直流輸入電壓控制該啟動開關231形成導通或斷開。Referring to FIG. 1 again, the start switch 231 of the power adjustment component 23 of the first embodiment of the present invention is coupled to a controller 5 for detecting a DC input voltage of the power converter 4 . And controlling the start switch 231 to be turned on or off according to the DC input voltage.
當該風力發電單元1之發電機13因該扇葉組11轉動而轉換出電流，並對該儲能單元3及該電能轉換器4充電及供應時，該控制器5偵測該直流輸入電壓未達到最高設定上限電壓，此時，控制該啟動開關231形成斷開狀態，在此一情況下，該風力發電單元1之發電機13轉換出的電流持續對該儲能單元3及該電能轉換器4供電。上述的控制方式係根據以下的理論分析：當該發電機13在穩定運轉狀況下，依電磁理論分析可得，該發電機13之輸出電壓與轉速成正比，而且，由於該發電機13之輸出電流與該發電機13產生的反作用力矩成正比，因此其輸出電流則會與外界風力大小亦成正比。When the generator 13 of the wind power generation unit 1 converts current due to the rotation of the blade group 11, and charges and supplies the energy storage unit 3 and the power converter 4, the controller 5 detects the DC input voltage. The maximum set upper limit voltage is not reached. At this time, the start switch 231 is controlled to form an open state. In this case, the current converted by the generator 13 of the wind power generation unit 1 continues to the energy storage unit 3 and the electric energy conversion. Device 4 is powered. The above control method is based on the following theoretical analysis: when the generator 13 is in a stable operating condition, it can be obtained by electromagnetic theory analysis, the output voltage of the generator 13 is proportional to the rotational speed, and, due to the output of the generator 13 The current is proportional to the reaction torque generated by the generator 13, so that its output current is also proportional to the size of the outside wind.
一旦該風力發電單元1之扇葉組11仍持續轉動，且該儲能單元3充電使得該充電電壓持續攀升直到達到充電電壓的設定上限時，為避免該儲能單元3因充電過量而造成該控制器5損壞之結果，該控制器5此時控制該啟動開關231形成導通狀態，由於該調節電阻232之電阻值相較於該儲能單元3及該電能轉換器4之阻抗甚小，但該發電機13因慣性轉動而無法立即改變轉速時，相對的，該發電機13輸出電壓亦不會立即改變，反而將該發電機13輸出電壓施加於該調節電阻232，因此，該調節電阻232上會流通一高值電流，而使得該發電機13的反作用力矩瞬間增加，進而減緩該風力發電單元1之扇葉組11之轉速，使該儲能單元3及該電能轉換器4上所建立之電壓逐漸降低，直到上述電壓低於該儲能單元3之充電電壓的設定下限時，該控制器5則控制該啟動開關231再次形成斷開狀態。藉由上述之操作，可使該輸出功率調節電路2作為調節該風力發電單元1對該儲能單元3、該電能轉換器4及該電能轉換器4後端負載或市電系統之功率。Once the fan blade group 11 of the wind power generation unit 1 continues to rotate, and the energy storage unit 3 is charged such that the charging voltage continues to climb until the set upper limit of the charging voltage is reached, the storage unit 3 is prevented from being overcharged. As a result of the controller 5 being damaged, the controller 5 controls the start switch 231 to be in an on state. The resistance of the adjustment resistor 232 is relatively small compared to the energy storage unit 3 and the power converter 4, but When the generator 13 cannot change the rotational speed immediately due to the inertia rotation, the output voltage of the generator 13 does not change immediately. Instead, the output voltage of the generator 13 is applied to the adjustment resistor 232. Therefore, the adjustment resistor 232 A high-value current is circulated, so that the reaction torque of the generator 13 is instantaneously increased, thereby slowing down the rotational speed of the blade group 11 of the wind power generation unit 1, so that the energy storage unit 3 and the power converter 4 are established. The voltage gradually decreases until the voltage is lower than the set lower limit of the charging voltage of the energy storage unit 3, and the controller 5 controls the start switch 231 to form an open state again. By the above operation, the output power adjustment circuit 2 can be used to adjust the power of the wind power generation unit 1 to the energy storage unit 3, the power converter 4, and the back end load or the mains system of the power converter 4.
請參照第2圖所示，其揭示本發明第二實施例之輸出功率調節電路6，該輸出功率調節電路6同樣具有一電能輸入埠61、一電能輸出埠62及一功率調節組件63，該功率調節組件63亦包含一啟動開關631及一調節電阻632，且該功率調節組件63之啟動開關631亦供耦接一控制器5’。上述第二實施例之構件與第一實施例之輸出功率調節電路2所有構件具有相同的電路樣態，於此不多贅述。Referring to FIG. 2, an output power adjustment circuit 6 of the second embodiment of the present invention is disclosed. The output power adjustment circuit 6 also has a power input port 61, an electric energy output port 62, and a power adjustment component 63. The power adjustment component 63 also includes a start switch 631 and an adjustment resistor 632, and the start switch 631 of the power adjustment component 63 is also coupled to a controller 5'. The components of the second embodiment described above have the same circuit configuration as all of the components of the output power adjustment circuit 2 of the first embodiment, and will not be described here.
請再參照第2圖所示，相較於本發明第一實施例，第二實施例之輸出功率調節電路6另包含一輔助功率調節組件64，其包含一輔助啟動開關641及一輔助調節電阻642。Referring to FIG. 2 again, in comparison with the first embodiment of the present invention, the output power adjustment circuit 6 of the second embodiment further includes an auxiliary power adjustment component 64 including an auxiliary start switch 641 and an auxiliary adjustment resistor. 642.
該輔助啟動開關641係與該輔助調節電阻642相互串聯連接，串聯的該輔助啟動開關641及該輔助調節電阻642再與該電能輸出埠62並聯，該輔助啟動開關641亦供耦接該控制器5’；該輔助啟動開關641係可為一機械式開關(如繼電器)或一電子式開關(如TRIAC)，考量該輔助啟動開關641瞬間需流過很大的電流，該輔助啟動開關641較佳係選擇繼電器。The auxiliary starting switch 641 is connected in series with the auxiliary adjusting resistor 642. The auxiliary starting switch 641 and the auxiliary adjusting resistor 642 are connected in parallel with the electric energy output port 62. The auxiliary starting switch 641 is also coupled to the controller. 5'; the auxiliary start switch 641 can be a mechanical switch (such as a relay) or an electronic switch (such as TRIAC), considering that the auxiliary start switch 641 needs to flow a large current instantaneously, the auxiliary start switch 641 is more The best choice of relays.
該輔助調節電阻642之作用有二：其一為用以輔助該功率調節組件63進行該功率調整；另一為用以防孤島效應造成該發電機13及該電能轉換器4之損壞。該輔助調節電阻642係具有一電阻值，且該輔助調節電阻642之電阻值遠小於該調節電阻632之電阻值，而該輔助調節電阻642之電阻值與該調節電阻632之電阻值之間的較佳關係為：該調節電阻632之電阻值大於一預設值，該預設值係為該輔助調節電阻642之電阻值的10倍，且該輔助調節電阻642因需要承受大電流，而選擇設置一高功率電阻，該高功率電阻同樣具有一散熱片，以進行散熱。The auxiliary adjusting resistor 642 has two functions: one is for assisting the power adjusting component 63 to perform the power adjustment; the other is for preventing the island 13 and the power converter 4 from being damaged by the islanding effect. The auxiliary adjustment resistor 642 has a resistance value, and the resistance value of the auxiliary adjustment resistor 642 is much smaller than the resistance value of the adjustment resistor 632, and the resistance value of the auxiliary adjustment resistor 642 and the resistance value of the adjustment resistor 632 Preferably, the resistance value of the adjusting resistor 632 is greater than a predetermined value, and the preset value is 10 times the resistance value of the auxiliary adjusting resistor 642, and the auxiliary adjusting resistor 642 is selected because it needs to withstand a large current. A high power resistor is provided, which also has a heat sink for heat dissipation.
以下將進一步說明該輔助調節電阻642用以保護該發電機13及該電能轉換器4在強風狀況下不致遭到損壞。在啟動該功率調節組件63之操作後，由於該扇葉組11受到強風吹動而仍轉動很快時，該發電機13因慣性轉動而無法立即改變轉速，故該發電機13輸出電壓亦不會立即改變，反而將該發電機13輸出電壓施加於該輔助調節電阻642，因此，該輔助調節電阻642上會流通一高值電流，且流通於該輔助調節電阻642上之高值電流會比前述流通於該調節電阻632上之高值電流大很多(因為該輔助調節電阻642之電阻值遠小於該調節電阻632之電阻值之故)，而使得該發電機13產生一極大的反作用力矩，迫使該發電機13減速，直到該發電機13以一極低之轉速進行運轉為止，此時，該發電機13因運轉於極低速而使該發電機13輸出很小的功率，且此時的輸出功率不會對該電能轉換器4造成影響，因而可防止孤島效應造成該發電機13及該電能轉換器4之損壞。The auxiliary regulating resistor 642 is further described below for protecting the generator 13 and the power converter 4 from damage under strong wind conditions. After the operation of the power adjustment component 63 is started, since the blade group 11 is rotated by the strong wind and the rotation is fast, the generator 13 cannot change the rotation speed immediately due to the inertia rotation, so the output voltage of the generator 13 is not The generator 13 output voltage is applied to the auxiliary adjustment resistor 642. Therefore, a high-value current flows through the auxiliary adjustment resistor 642, and the high-value current flowing through the auxiliary adjustment resistor 642 is higher than that. The high-value current flowing through the adjusting resistor 632 is much larger (because the resistance value of the auxiliary adjusting resistor 642 is much smaller than the resistance value of the adjusting resistor 632), so that the generator 13 generates a maximum reaction torque. The generator 13 is forced to decelerate until the generator 13 is operated at a very low speed. At this time, the generator 13 outputs a very low power due to the operation of the extremely low speed, and at this time The output power does not affect the power converter 4, and thus the islanding effect can be prevented from causing damage to the generator 13 and the power converter 4.
藉由上述之操作，可使該輸出功率調節電路6進一步輔助調節該風力發電單元1對該儲能單元3、該電能轉換器4及該電能轉換器4後端負載或市電系統之間的功率。By the above operation, the output power adjustment circuit 6 can further assist in adjusting the power between the wind power generation unit 1 and the energy storage unit 3, the power converter 4, and the back end load or the mains system of the power converter 4. .
其中該控制器5’用以接收該電能轉換器4之直流電壓輸入，且該控制器5’耦接至該輔助調節電阻642，以便該控制器5’可偵測該輔助調節電阻642之通過電流，且該輔助調節電阻642之通過電流正比於該發電機13之反作用力矩，一旦該輔助調節電阻642上的流通電流低於設定下限時，代表外界風力可能已經變小至該扇葉組11’轉速的安全操作範圍，此時，該控制器5’控制該輔助啟動開關641斷開，使該發電機13復逐漸增速，以進行該發電機13之正常操作。The controller 5' is configured to receive the DC voltage input of the power converter 4, and the controller 5' is coupled to the auxiliary adjustment resistor 642, so that the controller 5' can detect the passage of the auxiliary adjustment resistor 642. The current, and the passing current of the auxiliary adjusting resistor 642 is proportional to the reaction torque of the generator 13. Once the circulating current on the auxiliary adjusting resistor 642 is lower than the set lower limit, the representative wind may have become smaller to the blade group 11 'The safe operating range of the rotational speed. At this time, the controller 5' controls the auxiliary starting switch 641 to be turned off, so that the generator 13 is gradually increased in speed to perform normal operation of the generator 13.
請參照第3圖所示，其揭示一風力發電單元1’、本發明第三實施例之二個輸出功率調節電路7、一儲能單元3’及一電能轉換器4’之電路連接示意圖。其中上述單元為三相電路之連接示意圖。Referring to Fig. 3, there is shown a circuit connection diagram of a wind power generation unit 1', two output power adjustment circuits 7 of the third embodiment of the present invention, an energy storage unit 3' and a power converter 4'. The above unit is a connection diagram of a three-phase circuit.
該風力發電單元1’包含一扇葉組11’、一變速箱12’及一發電機13’。該風力發電單元1’之扇葉組11’及變速箱12’與第一實施例相同，於此不作贅述；相較第一實施例，該發電機13’係為一三相系統之發電機，該發電機13’具有三個電源端R、S、T，任二相個別設有一輸出功率調節電路7，亦即，在該二電源端R、S之間設有一輸出功率調節電路7；而在該二電源端T、S之間另設有一 輸出功率調節電路7。The wind power unit 1' includes a blade group 11', a gearbox 12' and a generator 13'. The fan blade group 11' and the gearbox 12' of the wind power generation unit 1' are the same as the first embodiment, and are not described herein; compared with the first embodiment, the generator 13' is a three-phase system generator. The generator 13' has three power terminals R, S, T, each of the two phases is provided with an output power adjustment circuit 7, that is, an output power adjustment circuit 7 is provided between the two power terminals R, S; There is another one between the two power terminals T and S. The power adjustment circuit 7 is output.
各該輸出功率調節電路7具有一電能輸入埠71、一電能輸出埠72、一功率調節組件73及一輔助功率調節組件74，且該輸出功率調節電路7供耦接一控制器5”，其電路樣態、操作及作用與第一實施例及第二實施例相同，於此不多贅述。Each of the output power adjustment circuits 7 has a power input port 71, a power output port 72, a power adjustment component 73, and an auxiliary power adjustment component 74, and the output power adjustment circuit 7 is coupled to a controller 5". The circuit configuration, operation and function are the same as those of the first embodiment and the second embodiment, and will not be further described herein.
另外，本發明第三實施例之二個輸出功率調節電路7後端連接一三相全波整流二極體組D’，以便將三相交流電全波整流為直流電；該三相全波整流二極體組D’後端又連接該儲能單元3’，該儲能單元3’係具有三個儲能電容，各該儲能電容分別進行該直流電之儲能操作。In addition, the two output power adjustment circuits 7 of the third embodiment of the present invention are connected to a three-phase full-wave rectifying diode group D' at the back end to rectify the three-phase alternating current full-wave to a direct current; the three-phase full-wave rectification two The rear end of the polar body group D' is connected to the energy storage unit 3'. The energy storage unit 3' has three energy storage capacitors, and each of the energy storage capacitors performs the energy storage operation of the direct current.
本發明第三實施例之輸出功率調節電路7藉由上述之電路連接結構，可用以調節該風力發電單元1’對該儲能單元3’、該電能轉換器4’及該電能轉換器4’後端負載或市電系統之功率。The output power adjustment circuit 7 of the third embodiment of the present invention can be used to adjust the wind power generation unit 1 ′ to the energy storage unit 3 ′, the power converter 4 ′ and the power converter 4 ′ by the above-mentioned circuit connection structure. The power of the back-end load or mains system.
雖然本發明已利用上述較佳實施例揭示，然其並非用以限定本發明，任何熟習此技藝者在不脫離本發明之精神和範圍之內，相對上述實施例進行各種更動與修改仍屬本發明所保護之技術範疇，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.
1‧‧‧風力發電單元1‧‧‧Wind power unit
11‧‧‧扇葉組11‧‧‧Face Leaf Group
12‧‧‧變速箱12‧‧‧Transmission
13‧‧‧發電機13‧‧‧Generator
131‧‧‧定子線圈131‧‧‧statar coil
1’‧‧‧風力發電單元1’‧‧‧Wind power unit
11’‧‧‧扇葉組11’‧‧‧Face Leaf Group
12’‧‧‧變速箱12’‧‧‧Transmission
13’‧‧‧發電機13’‧‧‧Generator
2‧‧‧輸出功率調節電路2‧‧‧Output power adjustment circuit
21‧‧‧電能輸入埠21‧‧‧Power input埠
22‧‧‧電能輸出埠22‧‧‧Electrical power output埠
23‧‧‧功率調節組件23‧‧‧Power adjustment components
231‧‧‧啟動開關231‧‧‧Start switch
232‧‧‧調節電阻232‧‧‧Adjusting resistance
3‧‧‧儲能單元3‧‧‧ Energy storage unit
3’‧‧‧儲能單元3’‧‧‧ Energy Storage Unit
4‧‧‧電能轉換器4‧‧‧Power converter
4’‧‧‧電能轉換器4'‧‧‧Power Converter
5‧‧‧控制器5‧‧‧ Controller
5’‧‧‧控制器5’‧‧‧ controller
5”‧‧‧控制器5"‧‧‧ controller
6‧‧‧輸出功率調節電路6‧‧‧Output power adjustment circuit
61‧‧‧電能輸入埠61‧‧‧Power input埠
62‧‧‧電能輸出埠62‧‧‧Electrical power output埠
63‧‧‧功率調節組件63‧‧‧Power adjustment components
631‧‧‧啟動開關631‧‧‧Start switch
632‧‧‧調節電阻632‧‧‧Adjusting resistance
64‧‧‧輔助功率調節組件64‧‧‧Auxiliary power adjustment components
641‧‧‧輔助啟動開關641‧‧‧Auxiliary start switch
642‧‧‧輔助調節電阻642‧‧‧Auxiliary adjustment resistor
7‧‧‧輸出功率調節電路7‧‧‧Output power adjustment circuit
71‧‧‧電能輸入埠71‧‧‧Power input埠
72‧‧‧電能輸出埠72‧‧‧Electrical power output埠
73‧‧‧功率調節組件73‧‧‧Power adjustment components
74‧‧‧輔助功率調節組件74‧‧‧Auxiliary power adjustment components
R‧‧‧電源端R‧‧‧ power terminal
S‧‧‧電源端S‧‧‧ power terminal
T‧‧‧電源端T‧‧‧ power terminal
D‧‧‧全波整流二極體組D‧‧‧ Full-wave rectifying diode group
D’‧‧‧三相全波整流二極體組D’‧‧‧Three-phase full-wave rectifying diode group
第1圖：本發明第一實施例之輸出功率調節電路與一風力發電系統之電路連接示意圖。Fig. 1 is a schematic view showing the circuit connection of an output power adjusting circuit and a wind power generating system according to a first embodiment of the present invention.
第2圖：本發明第二實施例之輸出功率調節電路與一風力發電系統之電路連接示意圖。Fig. 2 is a schematic diagram showing the circuit connection of an output power adjusting circuit and a wind power generating system according to a second embodiment of the present invention.
第3圖：本發明第二實施例之輸出功率調節電路與一三相風力發電系統之電路連接示意圖。Fig. 3 is a schematic view showing the circuit connection of the output power adjusting circuit and the three-phase wind power generating system of the second embodiment of the present invention.
1．．．風力發電單元1. . . Wind power unit
11．．．扇葉組11. . . Fan blade group
12．．．變速箱12. . . Gearbox
13．．．發電機13. . . generator
131．．．定子線圈131. . . Stator coil
2．．．輸出功率調節電路2. . . Output power adjustment circuit
21．．．電能輸入埠twenty one. . . Power input埠
22．．．電能輸出埠twenty two. . . Power output埠
23．．．功率調節組件twenty three. . . Power conditioning component
231．．．啟動開關231. . . Start switch
232．．．調節電阻232. . . Adjustment resistor
3．．．儲能單元3. . . Energy storage unit
4．．．電能轉換器4. . . Power converter
5．．．控制器5. . . Controller
D．．．全波整流二極體組D. . . Full-wave rectifying diode group
Claims (8)
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| TW099110645A TWI420772B (en) | 2010-04-06 | 2010-04-06 | Wind-powered output power regulating circuit |
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| TW099110645A TWI420772B (en) | 2010-04-06 | 2010-04-06 | Wind-powered output power regulating circuit |
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| TWI420772B true TWI420772B (en) | 2013-12-21 |
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Citations (2)
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| TW200409432A (en) * | 2002-10-10 | 2004-06-01 | Sanyo Electric Co | Means for detecting dc ground fault, and system-link electricity generation device using the detecting means of dc ground fault |
| CN1823467A (en) * | 2003-07-15 | 2006-08-23 | 歌美飒风电有限公司 | Control and protection of a doubly-fed induction generator system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200409432A (en) * | 2002-10-10 | 2004-06-01 | Sanyo Electric Co | Means for detecting dc ground fault, and system-link electricity generation device using the detecting means of dc ground fault |
| CN1823467A (en) * | 2003-07-15 | 2006-08-23 | 歌美飒风电有限公司 | Control and protection of a doubly-fed induction generator system |
Non-Patent Citations (1)
| Title |
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| 蔡明村, 吳俊樺, 朱慶隆, "小型風力發電系統併入市電運轉之研製", 中華民國第二十九屆電力工程研討會, 2008/12/06, p.p. 1633-1637. * |
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