TW201326851A - Burn-in system - Google Patents
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Abstract
Description
本發明是有關於一種測試系統，且特別是有關於一種産品質量老化測試系統。
The present invention relates to a test system, and more particularly to a product quality burn-in test system.
近年來由於工商發達、社會進步，相對開發之產品亦會針對環保為宗旨，因此，當前開發之產品亦比以往更加節能低碳，而得以貢獻社會。
BI（Burn-in）系統，即産品質量老化測試系統，通過對産品進行不斷的電流載入來達到質量檢測的目的。習用的BI系統，採用磁约束控制（pole-restraining control, PRC）作爲電能的回收單元，但電能的平均回收效率不高（約50%），成效有限，另外系統的穩定性差，産能低，因此已不滿足當前的生産要求以及“環保、節能”的理念。
第1圖繪示習知的産品質量老化測試系統100，其中具有變壓器130，磁约束控制模組110作爲電能回收單元，最終電能通過220V回到電子産品120之輸入端，電能平均回收效率爲50%，成效有限。另外，習知的産品質量老化測試系統100之磁约束控制模組110還存在諸多缺點，如控制不好，導致電流畸變嚴重（如第6圖所示之610），嚴重影響電網的質量；可靠性差，經常跳異常，使得變頻器在載入過程之中經常炸機；電流諧波含量高（30%以上），導致回饋能量少，效率低。
由此可見，上述現有的BI系統，顯然仍存在不便與缺陷，而有待加以進一步改進。為了解決上述問題，相關領域莫不費盡心思來謀求解決之道，但長久以來一直未見適用的方式被發展完成。因此，如何能更有效的節省能源、提升產能，實屬當前重要研發課題之一，亦成爲當前相關領域亟需改進的目標。
In recent years, due to the development of industrial and commercial development and social progress, the relatively developed products will also be aimed at environmental protection. Therefore, the products currently developed are more energy-efficient and low-carbon than before, and they can contribute to society.
The BI (Burn-in) system, the product quality aging test system, achieves quality inspection by continuously loading the product. The conventional BI system uses pole-restraining control (PRC) as the recovery unit of electric energy, but the average recovery efficiency of electric energy is not high (about 50%), the effect is limited, and the stability of the system is poor, and the productivity is low. The current production requirements and the concept of “environmental protection and energy saving” have not been met.
FIG. 1 illustrates a conventional product quality aging test system 100 having a transformer 130 and a magnetic confinement control module 110 as an electric energy recovery unit. The final electric energy is returned to the input end of the electronic product 120 through 220V, and the average electric energy recovery efficiency is 50. %, limited results. In addition, the magnetic constraint control module 110 of the conventional product quality aging test system 100 has many disadvantages, such as poor control, resulting in serious current distortion (such as 610 shown in Figure 6), which seriously affects the quality of the power grid; The performance is poor, often jumping abnormally, so that the frequency converter often bombs during the loading process; the current harmonic content is high (more than 30%), resulting in less feedback energy and low efficiency.
It can be seen that the above existing BI system obviously has inconveniences and defects, and needs to be further improved. In order to solve the above problems, the relevant fields have not exhausted their efforts to seek solutions, but the methods that have not been applied for a long time have been developed. Therefore, how to save energy and increase production capacity more effectively is one of the current important research and development topics, and it has become an urgent target for improvement in related fields.
因此，本發明之一態樣是在提供一種創新的産品質量老化測試系統，以解決上述問題。
依據本發明一實施例，一種産品質量老化測試系統包括變壓器與主動前端轉換器。變壓器用以對至少一電子產品供電；主動前端轉換器，電性耦接變壓器與電子產品，用以將電子產品所輸出的電能回收到該電子產品之輸入端。
上述之該變壓器可包括一三相交流電網，三相交流電網電性耦接電子產品之輸入端。
上述之主動前端轉換器亦可包括第一電抗器、第一主動前端轉換模組、第二主動前端轉換模組、第二電抗器、隔離變壓器與LC濾波器。第一電抗器電性耦接三相交流電網，第一主動前端轉換模組電性耦接第一電抗器，第二主動前端轉換模組經由一直流匯流排電性耦接第一主動前端轉換模組，第二電抗器電性耦接第二主動前端轉換模組；隔離變壓器電性耦接第二電抗器， LC濾波器電性耦接隔離變壓器與電子產品。
第二主動前端轉換模組用以將電子產品經由LC濾波器、隔離變壓器與第二電抗器所回傳之第一交流電轉換成直流電，第一主動前端轉換模組用以將直流電轉換成與三相交流電網匹配之第二交流電，並透過第一電抗器回饋至三相交流電網。
上述之産品質量老化測試系統亦可包括電腦設備。電腦設備用以發送一啟停信號給第一主動前端轉換模組，當第一主動前端轉換模組輸出一故障信號給電腦設備時，由電腦設備判定第一主動前端轉換模組是否正常，當第一主動前端轉換模組正常時，則電腦設備用啓動第一主動前端轉換模組，然後由第一主動前端轉換模組的運轉狀態來控制第二主動前端轉換模組的啓停。
上述之電腦設備根據電子產品的機種判定所需負載大小，並發送一加載指令信號給第二主動前端轉換模組，使第二主動前端轉換模組控制第一交流電到預設電流，第一主動前端轉換模組檢測直流匯流排之電壓高於預定電壓後，將能量以與三相交流電網之電壓同頻、同相位的第二交流電回饋給三相交流電網。
上述之電子產品為一變頻器。
綜上所述，本發明之技術方案與現有技術相比具有明顯的優點和有益效果。藉由主動前端轉換器平均回收效率約80%，可達到相當的技術進步，並具有産業上的廣泛利用價值，其至少具有節省能源、提升產能，並具有改善電網電力品質、減少變壓器負荷，提高設備的穩定性、以及降低負載成本等諸多優點。
以下將以實施方式對上述之說明作詳細的描述，並對本發明之技術方案提供更進一步的解釋。
Accordingly, one aspect of the present invention is to provide an innovative product quality aging test system to address the above problems.
According to an embodiment of the invention, a product quality aging test system includes a transformer and an active front end converter. The transformer is used to supply power to at least one electronic product; the active front end converter is electrically coupled to the transformer and the electronic product for recycling the electrical energy output by the electronic product to the input end of the electronic product.
The transformer described above may comprise a three-phase AC grid, and the three-phase AC grid is electrically coupled to the input of the electronic product.
The active front-end converter may also include a first reactor, a first active front-end conversion module, a second active front-end conversion module, a second reactor, an isolation transformer, and an LC filter. The first reactor is electrically coupled to the three-phase AC power grid, the first active front-end conversion module is electrically coupled to the first reactor, and the second active front-end conversion module is electrically coupled to the first active front-end through the DC bus The second reactor is electrically coupled to the second active front end conversion module; the isolation transformer is electrically coupled to the second reactor, and the LC filter is electrically coupled to the isolation transformer and the electronic product.
The second active front-end conversion module is configured to convert the first alternating current returned by the electronic product via the LC filter, the isolation transformer and the second reactor into direct current, and the first active front-end conversion module is configured to convert the direct current into three The second alternating current matched by the alternating current grid is fed back to the three-phase alternating current grid through the first reactor.
The above product quality aging test system may also include computer equipment. The computer device is configured to send a start-stop signal to the first active front-end conversion module. When the first active front-end conversion module outputs a fault signal to the computer device, the computer device determines whether the first active front-end conversion module is normal. When the first active front-end conversion module is normal, the computer device starts the first active front-end conversion module, and then controls the start and stop of the second active front-end conversion module by the operating state of the first active front-end conversion module.
The computer device determines the required load size according to the model of the electronic product, and sends a loading command signal to the second active front end conversion module, so that the second active front end conversion module controls the first alternating current to the preset current, the first active After detecting the voltage of the DC busbar higher than the predetermined voltage, the front-end conversion module feeds back the energy to the three-phase AC power grid with the second AC power of the same frequency and the same phase as the voltage of the three-phase AC power grid.
The above electronic product is a frequency converter.
In summary, the technical solution of the present invention has obvious advantages and beneficial effects compared with the prior art. With an average recovery efficiency of about 80% for active front-end converters, considerable technological advances can be achieved and industrially widely used. It at least saves energy, increases productivity, and improves grid power quality, reduces transformer load, and improves Equipment stability, and reduced load costs and many other advantages.
The above description will be described in detail in the following embodiments, and further explanation of the technical solutions of the present invention will be provided.
為了使本發明之敘述更加詳盡與完備，可參照所附之圖式及以下所述各種實施例，圖式中相同之號碼代表相同或相似之元件。另一方面，眾所週知的元件與步驟並未描述於實施例中，以避免對本發明造成不必要的限制。
於實施方式與申請專利範圍中，涉及『耦接(coupled with)』之描述，其可泛指一元件透過其他元件而間接連接至另一元件，或是一元件無須透過其他元件而直接連接至另一元件。
於實施方式與申請專利範圍中，除非內文中對於冠詞有所特別限定，否則『一』與『該』可泛指單一個或複數個。
本文中所使用之『約』、『大約』或『大致』係用以修飾任何可些微變化的數量，但這種些微變化並不會改變其本質。於實施方式中若無特別說明，則代表以『約』、『大約』或『大致』所修飾之數值的誤差範圍一般是容許在百分之二十以內，較佳地是於百分之十以內，而更佳地則是於百分五之以內。
本發明之技術態樣是一種産品質量老化測試系統，其可用於加載待測之電子產品，或是廣泛地運用在相關之技術環節。以下將搭配第2～11圖來說明此産品質量老化測試系統之具體實施方式。
第1圖繪示習知的産品質量老化測試系統100，第2圖係依據本發明一實施例所繪示之産品質量老化測試系統200，兩圖爲新舊BI架構電能平均回收率的比較。從圖中可以看出舊BI架構平均回收率低的主要原因是磁约束控制模組110輸出是通過220V回到電子産品120的輸入端，440V電壓回收造成了變壓器130的二次耦合。而新的産品質量老化測試系統200，主動前端轉換器（active front-end converter）210輸出自動選擇電子産品120對應電壓回到輸入端，避免了舊架構所造成的問題，因此提升了電能的回收效率。
第3圖爲主動前端轉換器210工作原理圖。如第3圖所示，變壓器包括三相交流電網310，主動前端轉換器210包括三相交流電網310、第一電抗器320、第一主動前端轉換模組330、第二主動前端轉換模組340、第二電抗器350、隔離變壓器360與LC濾波器370。
在結構上，三相交流電網310電性耦接電子產品120之輸入端，第一電抗器320電性耦接三相交流電網310，第一主動前端轉換模組330電性耦接第一電抗器320，第二主動前端轉換模組340經由直流匯流排380電性耦接第一主動前端轉換模組330，第二電抗器350電性耦接第二主動前端轉換模組340；隔離變壓器360電性耦接第二電抗器350， LC濾波器370電性耦接隔離變壓器360與電子產品120。於本實施例中，電子產品120為變頻器120。
當第一主動前端轉換模組330、第二主動前端轉換模組340正常工作時，電流按圖中箭頭指示的方向流動，第二主動前端轉換模組340工作在電流模式，作爲轉換器，用於給變頻器120載入，即AC TO DC。第一主動前端轉換模組330工作在電壓模式，作爲逆變器，將第二主動前端轉換模組340吸收之能量以弦波形式回饋至三相交流電網310，即DC to AC。
換言之，第二主動前端轉換模組340用以將電子產品120經由LC濾波器370、隔離變壓器260與第二電抗器350所回傳之第一交流電AC1轉換成直流電DC；第一主動前端轉換模組用以將直流電DC轉換成與三相交流電網匹配310之第二交流電AC2，並透過第一電抗器320回饋至三相交流電網310。
第4圖爲第一主動前端轉換模組330、第二主動前端轉換模組340聯動示意圖，首先，電腦設備用以發送一啟停信號給第一主動前端轉換模組330，當第一主動前端轉換模組330輸出一故障信號給電腦設備時，由電腦設備判定第一主動前端轉換模組330是否正常，當第一主動前端轉換模組330正常時，則電腦設備用啓動第一主動前端轉換模組330，然後由第一主動前端轉換模組330的運轉狀態來控制第二主動前端轉換模組340的啓停。
第5圖爲産品質量老化測試系統200之能量回授系統原理圖。途中虛線包圍者為接觸器，電腦設備510根據電子產品的機種判定所需負載大小，並發送一加載指令信號給第二主動前端轉換模組340，使第二主動前端轉換模組340控制第一交流電到預設電流（約等於變頻器120輸出電流），此時變頻器120輸出功率接近100%。第一主動前端轉換模組330檢測直流匯流排380之電壓高於預定電壓後，將能量以與三相交流電網310之電壓同頻、同相位的第二交流電回饋給三相交流電網310。按照以上方式迴圈，變頻器120即達到老化測試目的,電能也就最大限度的節約。
第6圖、第7圖依序爲系統改造前、後能量回授系統測得電流波形，圖中610、710爲回饋電網時電流波形，620、720爲電網電壓，從波形中可以看出PRC模組（即第1圖之磁约束控制模組110）使波形610産生嚴重畸變。
第7圖是使用AFE（即第2圖之主動前端轉換器210）之後的波形圖，可以看出即使電網中電壓同樣産生了畸變，但電流波形710卻得到很好的改善。如果産品質量老化測試系統200全部改造使用主動前端轉換器，電網電壓會得到明顯的改善，網側電流也幾乎爲標準的正弦波。從而使系統的穩定性得到很好的提升。
第8圖爲實際對産品質量老化測試系統100、200進行功率電能質量檢測對比圖，實際測試的結果顯示，在回饋效率方面，新的系統200比舊的産品質量老化測試系統100回收率從不到50%提高到80%以上，極大的節省了能源，提高了能源利用率。新的産品質量老化測試系統200在回饋電網的電流總畸變率THDi比舊的産品質量老化測試系統100改善很多，舊的産品質量老化測試系統100回饋電網時電流諧波含量高達17.3%以上，回饋的電能質量很差，新的産品質量老化測試系統200回饋電網時的電流諧波含量只有9.2%，回饋的電流波形近似爲正弦波，諧波含量很低，因此新的産品質量老化測試系統200對電網電力質量改善起到了很大的幫助。
第9圖爲新産品質量老化測試系統200架構圖，此架構總計四層，每一層具有輸入輸出控制器（I/O controller）900共用一組（電流模式、電壓模式）第一主動前端轉換模組330、第二主動前端轉換模組340，同時可測試八台電子産品120。四層的控制方式相同。
第10圖、第11圖是系統改善前後操作介面，舊的系統採用VB語言編寫，每次只能上Burn-in兩台電子産品，效率低，速度慢。新系統採用C#語言編寫，介面簡潔，美觀，操作簡單，回應資訊與錯誤資訊同時顯示在操作資訊欄裏，使操作者一目了然。同時一次可以上Burn-in8台電子産品，有效的提高了産能。
總結：系統改善後性能上的提升只要有以下幾點：
（1）以1個chamber計算：1）原有模式4層，每層最多可以B/I 4台，共16台産品；2）新的模式4層，每層最多可以B/I 8台，共32台，更改後産能提升一倍。
（2）採用AFE能量回升單元，回收效率提高，達到節省能源的效果。
（3）在相同的産能要求下節省了設備及所需空間。
（4）改善了電網電力品質，減少了變壓器負荷。
（5）提高了設備運行的穩定性，降低了負載的後期維護成本。
雖然本發明已以實施方式揭露如上，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內，當可作各種之更動與潤飾，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。
In order to make the description of the present invention more complete and complete, reference is made to the accompanying drawings and the accompanying drawings. On the other hand, well-known elements and steps are not described in the embodiments to avoid unnecessarily limiting the invention.
In the scope of the embodiments and claims, the description of "coupled with" may refer to a component being indirectly connected to another component through other components, or a component may be directly connected to Another component.
In the scope of the embodiments and patent applications, unless the context specifically dictates the articles, "a" and "the" may mean a single or plural.
As used herein, "about,""about," or "substantially" is used to modify the amount of any slight change, but such minor changes do not alter the nature. In the embodiment, unless otherwise stated, the error range represented by "about", "about" or "substantially" is generally allowed to be within 20%, preferably 10%. Within, and more preferably within five percent.
The technical aspect of the present invention is a product quality aging test system, which can be used to load an electronic product to be tested, or widely used in related technical aspects. The specific implementation of the product quality aging test system will be described below with reference to Figures 2-11.
FIG. 1 is a diagram showing a conventional product quality aging test system 100. FIG. 2 is a product quality aging test system 200 according to an embodiment of the present invention. The two figures show a comparison of the average power recovery rates of the old and new BI architectures. It can be seen from the figure that the main reason for the low average recovery rate of the old BI architecture is that the output of the magnetic constraint control module 110 is returned to the input of the electronic product 120 through 220V, and the 440V voltage recovery causes the secondary coupling of the transformer 130. The new product quality aging test system 200, the active front-end converter 210 output automatically selects the corresponding voltage of the electronic product 120 back to the input end, avoiding the problems caused by the old architecture, thus improving the recovery of electrical energy. effectiveness.
Figure 3 is a schematic diagram of the operation of the active front end converter 210. As shown in FIG. 3, the transformer includes a three-phase AC grid 310, and the active front-end converter 210 includes a three-phase AC grid 310, a first reactor 320, a first active front-end conversion module 330, and a second active front-end conversion module 340. The second reactor 350, the isolation transformer 360 and the LC filter 370.
The three-phase AC power grid 310 is electrically coupled to the input end of the electronic product 120. The first reactor 320 is electrically coupled to the three-phase AC power grid 310. The first active front end conversion module 330 is electrically coupled to the first reactance. The second active front-end conversion module 340 is electrically coupled to the first active front-end conversion module 330 via the DC bus 380, and the second reactor 350 is electrically coupled to the second active front-end conversion module 340. The isolation transformer 360 The second reactor 350 is electrically coupled to the isolation transformer 360 and the electronic product 120. In the embodiment, the electronic product 120 is the inverter 120.
When the first active front end conversion module 330 and the second active front end conversion module 340 operate normally, the current flows in the direction indicated by the arrow in the figure, and the second active front end conversion module 340 operates in the current mode as a converter. Loaded into the frequency converter 120, that is, AC TO DC. The first active front-end conversion module 330 operates in a voltage mode. As an inverter, the energy absorbed by the second active front-end conversion module 340 is fed back to the three-phase AC power grid 310 in the form of a sine wave, that is, DC to AC.
In other words, the second active front-end conversion module 340 is configured to convert the first alternating current AC1 returned by the electronic product 120 via the LC filter 370, the isolation transformer 260, and the second reactor 350 into a direct current DC; The group is configured to convert the DC power DC into a second AC power AC2 that is matched with the three-phase AC power grid 310 and feed back to the three-phase AC power grid 310 through the first reactor 320.
FIG. 4 is a schematic diagram of the linkage between the first active front end conversion module 330 and the second active front end conversion module 340. First, the computer device is configured to send a start and stop signal to the first active front end conversion module 330, and the first active front end When the conversion module 330 outputs a fault signal to the computer device, the computer device determines whether the first active front-end conversion module 330 is normal. When the first active front-end conversion module 330 is normal, the computer device starts the first active front-end conversion. The module 330 then controls the start and stop of the second active front end conversion module 340 by the operating state of the first active front end conversion module 330.
Figure 5 is a schematic diagram of the energy feedback system of the product quality aging test system 200. The bypass device is a contactor, and the computer device 510 determines the required load size according to the model of the electronic product, and sends a load command signal to the second active front-end conversion module 340, so that the second active front-end conversion module 340 controls the first AC power to the preset current (about equal to the output current of the inverter 120), at which time the output power of the inverter 120 is close to 100%. The first active front-end conversion module 330 detects that the voltage of the DC bus 380 is higher than the predetermined voltage, and returns the energy to the three-phase AC power grid 310 with the second AC power of the same frequency and the same phase as the voltage of the three-phase AC power grid 310. According to the above method, the inverter 120 achieves the purpose of aging test, and the power is saved to the utmost.
Figure 6 and Figure 7 show the current waveforms measured by the energy feedback system before and after the system transformation. In the figure, 610 and 710 are the current waveforms when the grid is fed back, and 620 and 720 are the grid voltages. From the waveform, the PRC can be seen. The module (i.e., the magnetic confinement control module 110 of FIG. 1) causes the waveform 610 to be severely distorted.
Figure 7 is a waveform diagram after using the AFE (i.e., the active front-end converter 210 of Fig. 2). It can be seen that even if the voltage in the grid is also distorted, the current waveform 710 is well improved. If the product quality aging test system 200 is completely modified to use the active front-end converter, the grid voltage will be significantly improved, and the grid-side current is almost a standard sine wave. Thereby the stability of the system is improved.
Figure 8 is a comparison of the power quality test of the product quality aging test system 100, 200. The actual test results show that in the feedback efficiency, the new system 200 never recovers from the old product quality aging test system 100. Increased to 50% by 50%, greatly saving energy and improving energy efficiency. The total product distortion rate THDi of the new product quality aging test system 200 is much improved compared with the old product quality aging test system 100. The old product quality aging test system 100 has a current harmonic content of more than 17.3% when fed back to the grid. The power quality is very poor. The current product harmonics of the new product quality aging test system 200 is only 9.2% when the grid is fed back. The current waveform of the feedback is approximately sine wave and the harmonic content is very low. Therefore, the new product quality aging test system 200 It has greatly helped the improvement of grid power quality.
Figure 9 is a block diagram of the new product quality aging test system 200. This architecture has a total of four layers. Each layer has an input/output controller (I/O controller) 900 sharing a set (current mode, voltage mode). The first active front-end conversion mode The group 330 and the second active front end conversion module 340 can simultaneously test eight electronic products 120. The four layers are controlled in the same way.
Figure 10 and Figure 11 show the system's improved front and rear operation interface. The old system is written in VB language, and only two Burn-in electronic products can be used at a time, which is inefficient and slow. The new system is written in C# language, the interface is simple, beautiful, easy to operate, and the response information and error information are displayed in the operation information bar at the same time, so that the operator can see at a glance. At the same time, it can be used on Burn-in 8 electronic products, which effectively increases the production capacity.
Summary: As long as the system improves, the performance improvement is as follows:
(1) Calculated by 1 chamber: 1) The original mode is 4 layers, each layer can be up to B/I 4 units, a total of 16 products; 2) The new mode is 4 layers, each layer can be up to B/I 8 units. A total of 32 units, doubled in capacity after the change.
(2) Adopting the AFE energy recovery unit, the recovery efficiency is improved and the energy saving effect is achieved.
(3) Save equipment and space required under the same capacity requirements.
(4) Improved grid power quality and reduced transformer load.
(5) Improve the stability of equipment operation and reduce the maintenance cost of the load.
Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.
100．．．產品質量老化測試系統100. . . Product quality aging test system
110．．．磁約束控制模組110. . . Magnetic constraint control module
120．．．電子產品120. . . electronic product
130．．．變壓器130. . . transformer
200．．．產品質量老化測試系統200. . . Product quality aging test system
210．．．主動前端轉換器210. . . Active front end converter
310．．．三相交流電網310. . . Three-phase AC grid
320．．．第一電抗器320. . . First reactor
330．．．第一主動前端轉換模組330. . . First active front end conversion module
340．．．第二主動前端轉換模組340. . . Second active front end conversion module
350．．．第二電抗器350. . . Second reactor
360．．．隔離變壓器360. . . Isolation transformer
370．．．LC濾波器370. . . LC filter
380．．．直流匯流排380. . . DC bus
510．．．電腦設備510. . . Computer equipment
610、710．．．電流波形610, 710. . . Current waveform
620、720．．．電網電壓620, 720. . . power voltage
900．．．輸入輸出控制器900. . . Input and output controller
為讓本發明之上述和其他目的、特徵、優點與實施例能更明顯易懂，所附圖式之說明如下：
第1圖繪示習知的産品質量老化測試系統；
第2圖係依據本發明一實施例所繪示之産品質量老化測試系統；
第3圖爲第2圖之主動前端轉換器工作原理圖
第4圖爲第3圖之第一、第二主動前端轉換模組聯動示意圖；
第5圖爲依據本發明一實施例之産品質量老化測試系統的能量回授系統原理圖；
第6圖、第7圖依序爲系統改造前、後能量回授系統測得電流波形；
第8圖爲實際對改造前、後之産品質量老化測試系統進行功率電能質量檢測對比圖；
第9圖爲新産品質量老化測試系統架構圖；以及
第10圖、第11圖是系統改善前後操作介面。
The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.
Figure 1 depicts a conventional product quality aging test system;
2 is a product quality aging test system according to an embodiment of the invention;
Fig. 3 is a schematic diagram of the working principle of the active front end converter of Fig. 2; Fig. 4 is a schematic diagram of the linkage of the first and second active front end conversion modules of Fig. 3;
Figure 5 is a schematic diagram of an energy feedback system of a product quality aging test system according to an embodiment of the present invention;
Figure 6 and Figure 7 show the current waveforms measured by the energy feedback system before and after the system transformation.
Figure 8 is a comparison chart of actual power quality testing for the product quality aging test system before and after the transformation;
Figure 9 is a structural diagram of the new product quality aging test system; and Fig. 10 and Fig. 11 are the front and rear operation interfaces of the system improvement.
120．．．電子產品120. . . electronic product
130．．．變壓器130. . . transformer
200．．．產品質量老化測試系統200. . . Product quality aging test system
210．．．主動前端轉換器210. . . Active front end converter
Claims (7)
變壓器，用以對至少一電子產品供電；以及
主動前端轉換器，電性耦接該變壓器與該電子產品，用以將該電子產品所輸出的電能回收到該電子產品之輸入端。A product quality aging test system, comprising:
The transformer is configured to supply power to the at least one electronic product; and the active front end converter is electrically coupled to the transformer and the electronic product for recycling the electrical energy output by the electronic product to the input end of the electronic product.
第一電抗器，電性耦接該三相交流電網；
第一主動前端轉換模組，電性耦接該第一電抗器；
第二主動前端轉換模組，經由一直流匯流排電性耦接該第一主動前端轉換模組；
第二電抗器，電性耦接該第二主動前端轉換模組；
隔離變壓器，電性耦接該第二電抗器；以及
LC濾波器，電性耦接該隔離變壓器與該電子產品。The product quality aging test system of claim 2, wherein the active front end converter further comprises:
a first reactor electrically coupled to the three-phase AC power grid;
The first active front end conversion module is electrically coupled to the first reactor;
The second active front-end conversion module is electrically coupled to the first active front-end conversion module via a DC bus;
a second reactor electrically coupled to the second active front end conversion module;
An isolation transformer electrically coupled to the second reactor;
An LC filter is electrically coupled to the isolation transformer and the electronic product.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104479295A CN102570501A (en) | 2011-12-28 | 2011-12-28 | Product quality aging testing system |
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| Publication Number | Publication Date |
|---|---|
| TW201326851A true TW201326851A (en) | 2013-07-01 |
| TWI434054B TWI434054B (en) | 2014-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| TW101102757A TWI434054B (en) | 2011-12-28 | 2012-01-30 | Burn-in System |
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| CN (1) | CN102570501A (en) |
| TW (1) | TWI434054B (en) |
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| TWI807448B (en) * | 2021-08-24 | 2023-07-01 | 新煒科技有限公司 | Testing method of electronic products, electronic device, and storage medium |
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| CN104034981A (en) * | 2014-06-18 | 2014-09-10 | 上海吉亿电机有限公司 | Self-circulation aging test system and test method for frequency converter |
| CN104297603B (en) * | 2014-10-30 | 2017-02-01 | 苏州苏名自动化设备有限公司 | Three-motor-combined frequency converter full-load aging test device |
| CN109870642B (en) * | 2019-03-14 | 2021-05-25 | 西安微电子技术研究所 | High-temperature dynamic aging device and method for bus controller circuit |
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| CN201726156U (en) * | 2010-08-20 | 2011-01-26 | 河南海泰科技有限公司 | Feedback energy-saving device with variable-frequency motor |
| CN202167863U (en) * | 2010-11-17 | 2012-03-14 | 刘学军 | Efficient and energy-saving self-circulating electronic load |
| CN202066930U (en) * | 2011-05-31 | 2011-12-07 | 中达光电工业（吴江）有限公司 | Test system for loading of frequency converter |
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| TWI807448B (en) * | 2021-08-24 | 2023-07-01 | 新煒科技有限公司 | Testing method of electronic products, electronic device, and storage medium |
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