1380572 衾Aar替換頁 九、發明說明： 【發明所屬之技術領域】 本發明有關一種馬達轉子變頻調速系統，特別是一種用反向器拖 動多台馬達異步同時實現轉子變頻調速系統。 【先前技術】1380572 衾Aar replacement page IX. Description of the invention: [Technical field of the invention] The invention relates to a motor rotor variable frequency speed control system, in particular to a rotor frequency conversion speed control system which simultaneously drives a plurality of motors asynchronously by an inverter. [Prior Art]
馬達是起重機、電風扇和水幫浦各工作機構中的原動機， 它將電能轉化為機械能。就起重機為例’它可以拖動起重機執行 提升（或下降）、變幅、回轉和行走等多種不同機構運動，完成 起重機現場作業任務。 圖1給出了習知的起重機用不同工作的馬達變頻調速系統 原理圖。從該圖中可以看出：該系統是在將電力系統提供的定壓 疋頻父流電源，經整流橋轉換成直流，繼而透過中間電路將直，、宁 經反向器又轉換成不同工作頻率的交流來驅動馬達轉動工作。^ 假設：電力系統電源頻率為f〇， 馬達工作頻率為fm。 那麼：fm=$fo成立， 這裡：ξ為變轉差率。 /土；哎更機現％作菜時，通常要求完成提升、變幅、回轉 和行走等_不同X作。因此，各相應的執行機構，就需要不同 的馬達提供不同的電能轉化為不同的機械能。這就是說，起重機 ^同的工作’所需的馬達轉速不同’即馬達的工作頻率fm不同。 3習知的馬達變頻調速系統中，-個反向器只能變換-個 頻率’對—個馬達進行變頻調速，俗稱“―拖―”技術。 起重機的四種不同工作，就需要四個反向器電路才能 阶交―直―交”變換，產生多個馬達所需的各自的 行走工ί ’ ^別完成起重機現場健時的提升、變幅、回轉和 6 1380572The motor is the prime mover in the working machinery of cranes, electric fans and water pumps, which convert electrical energy into mechanical energy. Take the crane as an example. It can drag the crane to perform various lifting movements such as lifting (or lowering), luffing, turning and walking to complete the on-site task of the crane. Figure 1 shows the schematic diagram of a conventional motor variable frequency speed control system for different cranes. It can be seen from the figure that the system is to convert the constant voltage and frequency parental power supply provided by the power system into a direct current through the rectifier bridge, and then through the intermediate circuit to straighten, and the reverser is converted into a different work. Frequency communication to drive the motor to rotate. ^ Assumption: The power system power frequency is f〇, and the motor operating frequency is fm. Then: fm=$fo is established, here: ξ is the change rate. / soil; when the machine is used for cooking, it is usually required to complete lifting, luffing, turning and walking, etc. Therefore, each corresponding actuator requires different motors to provide different electrical energy to be converted into different mechanical energy. That is to say, the crane does not have the same motor speed required for the same work, that is, the operating frequency fm of the motor is different. 3 In the conventional motor variable frequency speed control system, one inverter can only change one frequency to one motor for frequency conversion speed regulation, commonly known as “tow” technology. For the four different jobs of the crane, four inverter circuits are needed to change the line-direct-crossing, and the respective walking workers required to generate multiple motors are not to complete the lifting and changing of the crane site. , slewing and 6 1380572
年m正替換頁I ~ n t 综合上述，習知的馬辆速系統，其 =受電力，㈣頻率限制；既可《採取強迫換能/又可採 二=種财錢，除了低速時轉差功 外， 要 完全可以和錢觸減美，並有 ，、調速性能 重機構採用的變頻技術，仍然是-個功能二二，外起 =:反 增添四個反向器增=量:，力能，則需再 關產品，健是_‘‘—拖—，，的模二多公司的相 =得等產品，在我_關應用領域到處可見= 流，使截波器迅速建立子相電厂堅和整流器輸出直 等問題，還有待全^制電場，確保系統正常有序工作 7 年月日修正替換頁Year m is replacing page I ~ nt. In summary, the conventional horse speed system, which is subject to electric power, (4) frequency limitation; can be used to take forced energy conversion or can use two kinds of money, except for low speed. In addition to work, it is necessary to completely reduce the beauty with money, and there is, the frequency conversion technology adopted by the heavy-duty performance mechanism is still a function of two or two, the external rise =: add four reversers to increase the amount =, For energy, you need to close the product again. Jian is _''---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Power plant and rectifier output are straight and so on, and the electric field needs to be fully controlled to ensure the normal and orderly operation of the system.
^n,2B-J 【發明内容】 本發明的目的之一，是提供用一個全橋反向器拖動多台馬達異 步同時實現轉子變頻調速系統《即對多台馬達線上控制時，由同一個 反向器輸出的電壓，作各功能馬達的附加反向電動勢，驅動各功能截 波器即時工作，以實現多台馬達異步同時運轉。 本發明的目的之二，是提供用一個半橋反向器拖動多台馬達異 步同時實現轉子變頻調速系統。即對多台馬達線上控制時，由同一個 反向器輸出的電壓，作各功能馬達的附加反向電動勢，驅動各功能截 波器即時工作，以實現多台馬達異步同時運轉。 本發明的目的之三，是使該系統具有能量回饋再利用功能，做 到有效節約能源。 為了達到上述目的，本發明採用的技術方案是：用反向器拖動 多台馬達異步同時實現轉子變頻調速系統，包括： 一個馬達組，共4台馬達，用以異步同時完成起重機提升、變 幅、回轉和行走多種工作； 一個整流器組，含有4個整流橋，用以對與其相連接的馬達轉 子提供不同的頻率交流信號進行整流； -個限流ϋ組，含有4個喊H，贱提供瞬日找流，使截波 器正常工作； _一個裁波器組，含有4個截波器，透過調節每個截波器的導通 率，實現直流電流的連續調節，進而使馬達轉子電流連續調節，以達 到馬達轉子變_速的目的；必須指出的是：當截波器導通率為 100%時，馬達轉速為額定轉速； -個隔離驗，含有4娜離器，在最小卫作電流下，仍能维 持其連續性，確保馬達轉子正常工作； 正替換頁 -個全橋反向器或一個半橋反向器，用以將各H轉 不同頻率的交流電經整流為直流後，觀成與電力纽電源同頻同 相的交流電，實現交變直，直變交，並進行能量回饋至馬達或電力 統； * 一個驅動器組，含有4個驅動器，選用EX841積體電路， 微處理器cpu的主程式控制，進行脈寬調製，輸出pwM信號，= 至所對應的戴波器的閘極極，使各截波器實時可靠的導通和截止；' -個微處理H CPU，其工作由主程式蚊，它接收來自各個趟 轉換器的數字㈣，並進行數據處理，依次送至相對應的驅動 以實時控制截波器工作； ，用以將各對應的類 一個A/D轉換器組，含有4個A/D轉換器 比信號變換為所需的數字信號； -個信號處理H組，含有4個錢處理器，用以將錢應的電 壓、電流檢測信號和主令電壓(或縣令信號)進行綜合處理分 相應的A/D轉換器； -個電流檢測H組’含有4個電流制n，纽於前述整流橋 所包含的歸電感電流所流經的路徑上，用以檢測經各對應的限流器 限流後的直流電流，並轉換為電壓形式送至械號處理器的輸又 端； -個電壓檢測H組’含有4個電壓㈣，係位於前述馬達轉子 任意兩線之間’用以檢測各馬達任意兩制的不同鮮的交流電壓， 並轉換為直流電壓送至相應的信號處理器的輸入端。 本發明基於採用反轉控制理論技術對多台馬達進行線上控制 時’由同-個反向器的輸出電壓作各功能馬達的附加反向f動勢^ 用各功能馬達的截波科時工作，以實現多台馬達異步啊運轉。從 而，就整個系統而言，簡化了電路，縮小了體積，降低了成本，提升 了可罪性’確釘起重機現場作業提升、變幅、回轉和行走穋定、安 全、可靠。 〜 年月EJ修正替換頁 【貫施方式】 請參閲圖2所示，為本發明第一實施例。 從圖2中可以看出：本發明由馬達組1、整流器組2、限流器 组3、截波器組4、隔離器組5、全橋反向器6、驅動器組7、微處 理器（CPU) 8、A/D轉換器組9、信號處理器組1〇、電流檢測器 組11和電壓檢測器組12構成—個整體；其中： 所述馬達組1中的馬達]VH、M2、M3和M4各自的轉子依次 分別接至整流器組2中的整流器&、&、Ζ3和Ζ4各自相對應的輪 入端； 所述的全橋反向器6的輸出端與馬達組丨中的馬達μι、Μ2、 M3和Μ4各自的定子同時接入同一定壓定頻38〇伏交流電力系統 供電電源； 所述的截波器組4中的截波器IGBTl、I(3BT2、IGBT3和IGBT4 各自的陰極同時相交連接於一點，即B點； 所述的隔離器組5中的隔離器Dl、〇2、03和1)4各自的輸出 端同時相交連接於一點，即A點； 所述的限流器組3中的限流器l丨、L2、La和L4各自的輸出端 依次分別與電流檢測器組11中的電流檢測電阻Ri、R2、&和心 各自對應的輸入端相連接，而前述各電流檢測電阻Ri、R2、馬和 R4的輸出端依次與截波器組4中的戴波器IGBTl、IGBt2、IGBt3 和IGBT4各自對應的陽極及隔離器組5中的隔離器Di、〇2、〇3和 各自對應的輸入端相連接； 所述的驅動器組7中的驅動器EX841-1、EX841-2、EX841-3 和EX841-4，它們的第3腳，依次分別與截波器組4中的截波器 IGBT!、IGBT2、IGBT3和IGBT4的閘極直接相連接；而各驅動器 的第1腳依次分別與其相對應的截波器的陰極直接相交連接於一 點，即B點；各驅動器的第15腳分別經各路的限流電阻艮，依次 與微處理器（CPU) 8的引腳pi.o、pi.2、pi 4、pi.6相連接；各 驅動器的第14腳微處理器（CPU) 8的引腳PU、Ρ1·3、P1.5和 P1.7之間。又疋的pnp雙極接面電晶體a的集極相連接丨各驅動器 第1腳與其第9腳之間均接有一個47MF的電容，用來吸收由電 101年7月10日修正替換頁 #連接阻抗？|起的供電電輕化，而並非電喊波電容； 所述的微處理器（CPU)8的引腳Ρ1· 1、Γ>1· 3、Π. 5和π. 7依 次與驅動器組7中的驅動器、Εχ841_2、Εχ841_3和Εχ841_4 之間設定的ΡΝΡ雙極接面電晶體以的基極相連接； 所述的電流檢測器組丨1中的電流檢測電阻R1、R2、R3和R4， 其阻值相等，各自透過的限流直流電流n、I2、13和14，其電流 大小不同，折算出的直流電壓UI1、UI2、UI3和UI4，其電壓大小 也^同，且各電壓依次分別接至信號處理器組10中對應的信號處 理态Ul、U2、U3和U4的輸入端的第1和第2腳； 所述的-电壓檢測器組12依次取自於馬達組1中的馬達Μ、 M2恭M3和M4轉子上的任意兩相相電壓ϋν1、Uv2、Uv3和ϋν4，且 各％G依-人刀別接至彳g號處理器組1Q中對應的信號處理器Ui、 D2、U3和U4的輸入端的第3和第4腳；而主令電壓n Uu3 和IM依次分別接至信號處理器組1〇中對應的信號處理器仍營 U3和U4的輸入端的第5腳和第6腳； 所述的信號處理器組1〇中的信號處理器讥、^、邯和似各 自^輸出端F0、F卜F2和F3依次分別與A/D讎器組9中的轉 ^ 器 A/D-：L、A/D-2、A/D-3 和 A/D-4 各自的輸入端 H〇 ' m、H2 和 H3相直接連接； 所述的A/D轉換器組9中的轉換器A/IM、A/D_2、A/D_3和 A/D-4各自的輸入端HO、HI、H2和H3相直接連接； 所述的A/D轉換器組9中的轉換器A/M、a/d_2、a/d_3 ϊί4 t自的輸出錢、Ώ、T2和T3依次分別無處理器CPU 8 勺輸入而Il_ G、II. 1、II. 2和11_ 3直接相連接。 請參閱圖3和圖4所示’為本發明第二實施例。 ㈣:结m圖。4可以看出：本發明由馬達組卜整流器組2、 截波态、.且4、隔離碰5、半橋反向|| 15、驅動考 = '㈣_組9、信號處理器組 器13、電力電容14、激磁變壓器16、 g接觸Η7、控制接觸器18、切換接觸器19構成—個整體； 101年7月ίο日修正替換頁^n, 2B-J [Invention] One of the objects of the present invention is to provide a full-bridge inverter to drive multiple motors asynchronously and simultaneously realize a rotor frequency conversion speed control system, that is, when controlling multiple motor lines, The voltage output by the same inverter is used as the additional back electromotive force of each function motor to drive the function choppers to work instantly, so that multiple motors can operate asynchronously at the same time. A second object of the present invention is to provide a rotor frequency conversion speed control system by simultaneously dragging multiple motors with one half bridge inverter. That is, when controlling multiple motor lines, the voltage output by the same inverter is used as an additional back electromotive force of each function motor to drive each function chopper to work immediately, so that multiple motors can operate asynchronously at the same time. The third object of the present invention is to enable the system to have an energy feedback and reuse function to effectively save energy. In order to achieve the above object, the technical solution adopted by the present invention is: using a reverser to drag multiple motors asynchronously and simultaneously implementing a rotor frequency conversion speed control system, including: a motor group, a total of four motors, for asynchronous lifting of the crane at the same time, Variety, slewing and walking work; a rectifier group with 4 rectifier bridges for rectifying different frequency AC signals to the motor rotors connected to them; - a current limiting group containing 4 shouts H,贱Provide instantaneous day-to-day flow to make the chopper work normally; _One cut-off group with 4 choppers, through adjusting the conduction rate of each chopper, continuous adjustment of DC current, and thus motor rotor The current is continuously adjusted to achieve the purpose of changing the rotor speed of the motor; it must be pointed out that when the interceptivity of the chopper is 100%, the motor speed is the rated speed; - an isolation test, containing 4 Nea, at the minimum Under current, it can maintain its continuity and ensure the normal operation of the motor rotor. It is replacing the page-a full-bridge inverter or a half-bridge inverter to convert each H to a different frequency of communication. After the electricity is rectified to DC, the AC power is in phase with the same power and power supply, and the AC is directly and directly changed, and the energy is fed back to the motor or power system. * One drive group contains 4 drives, and EX841 is selected. Integrated circuit, microprocessor cpu main program control, pulse width modulation, output pwM signal, = to the corresponding gate of the wave device, so that each chopper is reliably turned on and off in real time; '-micro Handling the H CPU, which works by the main program mosquito, which receives the numbers (4) from each of the 趟 converters, and performs data processing, which is sequentially sent to the corresponding driver to control the operation of the chopper in real time; An A/D converter group containing 4 A/D converters to convert the signal into the required digital signal; - A signal processing group H containing 4 money processors for detecting the voltage and current of the money The signal and the master voltage (or the county signal) are integrated and processed into corresponding A/D converters. - One current detection group H contains four currents, n, which is the current of the returning inductor current included in the rectifier bridge. On the path of the passage, for inspection The DC current after current limit by each corresponding current limiter is converted into a voltage form and sent to the transmission end of the device processor; - a voltage detection group H contains 4 voltages (four), which are located in any of the aforementioned motor rotors. Between the lines is used to detect different fresh AC voltages of any two motors of the motor and convert them into DC voltages and send them to the input terminals of the corresponding signal processors. The invention is based on the use of the inversion control theory technology to perform on-line control of multiple motors. 'The output voltage of the same inverter is used as the additional reverse f momentum of each function motor. In order to achieve multiple motors asynchronous operation. As a result, the entire system simplifies the circuit, reduces the size, reduces the cost, and improves the sinfulness of the crane's on-site operation lifting, luffing, turning and walking stability, safety and reliability. ~ Year EJ correction replacement page [Comprehensive mode] Please refer to FIG. 2, which is the first embodiment of the present invention. As can be seen from FIG. 2, the present invention consists of a motor unit 1, a rectifier group 2, a current limiter group 3, a chopper group 4, an isolator group 5, a full bridge inverter 6, a driver group 7, and a microprocessor. (CPU) 8. The A/D converter group 9, the signal processor group 1A, the current detector group 11 and the voltage detector group 12 constitute a whole body; wherein: the motor in the motor group 1] VH, M2 The respective rotors of M3 and M4 are respectively connected to the respective wheel-in terminals of the rectifiers &, &, Ζ3 and Ζ4 in the rectifier group 2; the output of the full-bridge inverter 6 and the motor group 丨The stators of the motors μι, Μ 2, M3 and Μ4 are simultaneously connected to the same constant voltage fixed-frequency 38 〇 AC power system power supply; the IGBTs 1, I (3BT2, IGBT3) in the chopper group 4 And the cathodes of the IGBTs 4 are simultaneously connected to one point, that is, point B; the output ends of the isolators D1, 〇2, 03, and 1)4 in the isolator group 5 are simultaneously intersected and connected to one point, that is, point A; The respective output terminals of the current limiters l丨, L2, La and L4 in the current limiter group 3 are respectively inspected with the current in the current detector group 11 respectively. The resistors Ri, R2, & are connected to respective input ends of the core, and the output terminals of the respective current detecting resistors Ri, R2, MA and R4 are sequentially connected to the antennas IGBT1, IGBt2, IGBt3 in the chopper group 4 The anodes corresponding to the respective IGBTs 4 and the separators Di, 〇2, 〇3 in the isolator group 5 and their respective input terminals are connected; the drivers in the driver group 7 are EX841-1, EX841-2, EX841- 3 and EX841-4, their third leg is directly connected to the gates of the choppers IGBT!, IGBT2, IGBT3 and IGBT4 in the chopper group 4, respectively; and the first leg of each driver is in turn The cathodes of the corresponding choppers are directly connected to one point, that is, point B; the 15th pin of each driver is respectively connected to the current limiting resistor of each channel, and sequentially with the pin pi.o of the microprocessor (CPU) 8. Pi.2, pi 4, pi.6 are connected; between the pins PU, Ρ1·3, P1.5 and P1.7 of the 14th pin microprocessor (CPU) 8 of each driver. The collector of the pnp bipolar junction transistor a is connected with a 47 MF capacitor between the first leg and the 9th pin of each driver, which is used to absorb the replacement page of July 10, 2011. #连接电阻? The power supply is lighter than the electric shunt capacitor; the microprocessor (CPU) 8 has pins Ρ1·1, Γ>1·3, Π.5, and π.7 in sequence with the driver group 7 The ΡΝΡ-bipolar junction transistor set between the driver, Εχ841_2, Εχ841_3 and Εχ841_4 is connected at the base of the current; the current detecting resistors R1, R2, R3 and R4 in the current detector group ,1, The resistance values are equal, and the current-limiting DC currents n, I2, 13, and 14 respectively are different in current magnitude. The calculated DC voltages UI1, UI2, UI3, and UI4 have the same voltage, and the voltages are sequentially connected. The first and second legs to the input terminals of the corresponding signal processing states U1, U2, U3, and U4 in the signal processor group 10; the voltage detector group 12 is sequentially taken from the motor 马达 in the motor group 1, M2 Christine M3 and any two-phase phase voltages ϋν1, Uv2, Uv3 and ϋν4 on the M4 rotor, and each %G is connected to the corresponding signal processor Ui, D2, U3 in the 彳g processor group 1Q And the 3rd and 4th pins of the input of U4; and the master voltages n Uu3 and IM are respectively connected to the corresponding signals in the signal processor group 1〇 The processor still carries the 5th and 6th pins of the input terminals of U3 and U4; the signal processor 讥, ^, 邯 and the respective output terminals F0, FBu F2 and F3 in the signal processor group 1〇 Inputs H〇' m, H2 and respectively of the transducers A/D-:L, A/D-2, A/D-3 and A/D-4 in the A/D buffer group 9 The H3 phase is directly connected; the input terminals HO, HI, H2 and H3 of the converters A/IM, A/D_2, A/D_3 and A/D-4 in the A/D converter group 9 are directly connected. The converters A/M, a/d_2, a/d_3 ϊί4 t in the A/D converter group 9 have the output of the processor, the Ώ, the T2 and the T3, respectively, without the processor CPU 8 scoop input and Il_G , II. 1, II. 2 and 11_ 3 are directly connected. Please refer to FIG. 3 and FIG. 4 as a second embodiment of the present invention. (4): The knot m map. 4 can be seen: the invention consists of a motor group, a rectifier group 2, a chopping state, and 4, an isolated bump 5, a half bridge reverse || 15, a drive test = '(four)_group 9, signal processor group 13 The power capacitor 14, the excitation transformer 16, the g contact Η 7, the control contactor 18, and the switching contactor 19 constitute a whole; the July 2003 ίο日 revision replacement page
所述的馬達組1中的馬達Ml、M2、M3和M4 J 分別接至整流器組2中的整流器2卜Z2、Z3和Z4各自相 輪入端； … 所述的半橋反向|§ 15的輪出端與馬達組1中的馬達、M2、 M3和M4各自的定子同時接入同_定壓定頻綱伏交流電 電電源； ^ " 所述的截波器組4中的截波器IGBn、IGBT2'IGBT3* IGBT4 各自的陰極同時相交連接於—點，即B點； 所述的隔離器組5中的隔離器m，、兕和以各自的輸出 立而同時相交連接於一點，即A點；· ' 所述的驅動器組7中的驅動器Εχ84Μ、Εχ841_2、Εχ84ι_3 和EX841-4，它們的第3腳，依次分別與截波器組4中的截波器 ΙΰΒΉ、IGBT2、IGBT3和IGBT4賴極級直接相連接；而各驅動器 的第1腳触分酿其姉應賴波㈣陰極直接被連接於_ 點，即Β點，各驅動器的第15腳分別經各路的限流電阻^，依 與微處理器(GPU)8的引腳P1. 〇、Pi. 2、pi. 4、ρι· 6相連接；各驅 動器的第14腳與微處理器（CPU)8的引腳ρι·丨、ρι. 3、ρι· 5和ρι 7 之間設定的PNP雙極接面電晶體Q1的集極相連接；各驅動器 聊與其第9腳之間均接有一個47MF的電容，用來吸收由電^ 阻抗引起的供電電壓變化，而並非電源濾波電容； 所述的微處理器〇^)8的引腳？1.1、朽.3、？1.5和卩17依 次與驅動器組7中的驅動器EX84h、Εχ841_2、腦卜3和_卜) 之間設定的PNP雙極接面電晶體qi的基極相連接； 所述的電流檢測器組i i中的電流檢測電阻R2、R3和脱， 其阻值相等，各自透過的限流直流U、I2、13和I4，苴電流大巧 不同’折算出的直流電壓犯、UI2、UI3和UI4，其電壓大^也不、 同，且各電愿依次分別接至信號處理器組1〇中對應的信號處理哭 Ul、U2、U3和U4的輸入端的第1和第2腳； ° 所述的電壓檢測器組丨2依次取自於馬達組1中的馬達町、 M2、M3和M4轉子上的任意兩相相電壓uw、u 2 各電壓依次分別接至信號處理器組10中對應的2信^==且 ^80572 ϋ2、U3和1/4的輸入端的第3和第4腳；而主^ 和似依次分別接至信號處理器組1〇巾對^1 :贴、U«3 U3和U4的輸入端的第5腳和第6腳；* ° 'u處理器U1、U2、 所述的信號處理器組10中的信U 自的輸出端F0、η、卩2和卩3依次分別盥A/ :⑽和IM各 換器A/D-1、A/D-2、A/D-3和A/D-4各白沾於轉換态組9令的轉 Η3相直接連接； ^4各自的輸入端肋、们，和 所述的A/D轉換器組9 t的轉換器A/JH、 A/D-4各自的輸入端H0、扪、H2和H3相直接連接.2、A/D-3和 所述的A/D轉換器組9中的轉換 ⑽ 'Ti、T2 和 T3 依_=== 的輸入端II. 0、η·卜η· 2和η 3直接相連接.，（⑽8 所，的限流平波器（L) 13，其輸入端與 ㈣、D2、D3和D4的輸出商和電 —== 相緊密連接丨 接，、—相又机電力糸統電源的零線Μ 2273^7^力電容（C) 14的另—端分別與整流器組2中的2卜 IGBT1、iGBT? 2端的3只整流二極體的正極和截波器組4中的 “ 矛ΚΡ3各自的負極同時相交於一點，即B ; 出端分中的閘流體KP1、KP2和KP3各自的輸 電感U和^ Ρ ^感L5和騎謂】、電感L6和溶斷器齡 接；&斷$FU3直接與電力系統電壓A、B'C三相線端相連. 出端ί反向器15中的閘流體KP1、KP2和KP3各自的輪 電容C3 目串聯的電容C1和電阻器R5、電容C2和電阻器R6、The motors M1, M2, M3 and M4 J in the motor group 1 are respectively connected to the respective rectifiers 2, Z2, Z3 and Z4 in the rectifier group 2; the half bridge reverse|§ 15 The wheel and the motor of the motor group 1, the stators of M2, M3 and M4 are simultaneously connected to the same constant voltage fixed frequency AC electric power source; ^ " the interceptor in the chopper group 4 The cathodes of IGBn, IGBT2' IGBT3* IGBT4 are simultaneously connected to each other at point-point, ie point B; the isolators m, 兕 and 以 in the isolator group 5 are simultaneously connected to each other at their respective outputs, ie Point A; · 'The drivers Εχ84Μ, Εχ841_2, Εχ84ι_3, and EX841-4 in the driver group 7 are their third legs, which are in turn with the choppers IGBT, IGBT2, IGBT3, and IGBT4 in the chopper group 4, respectively. Lai is directly connected to each other; and the first foot of each driver is divided into two parts. The cathode is directly connected to the _ point, that is, the Β point, and the 15th pin of each driver passes through the current limiting resistance of each channel. According to the pins P1. 〇, Pi. 2, pi. 4, ρι·6 of the microprocessor (GPU) 8; the 14th pin of each driver The collector of the PNP bipolar junction transistor Q1 set between the pins ρι·丨, ρι. 3, ρι·5 and ρι 7 of the microprocessor (CPU) 8 is connected; each driver talks with its 9th pin Each is connected with a 47MF capacitor to absorb the supply voltage change caused by the electrical impedance, rather than the power supply filter capacitor; the microprocessor 〇^)8 pin? 1.1, ruin. 3,? 1.5 and 卩17 are sequentially connected to the base of the PNP bipolar junction transistor qi set between the drivers EX84h, Εχ841_2, brains 3 and _b in the driver group 7; the current detector group ii The current-sense resistors R2, R3 and D, the resistance values are equal, and the respective current-limiting DCs U, I2, 13, and I4 are transmitted, and the 苴 current is greatly different. The calculated DC voltage is violated, UI2, UI3, and UI4, and their voltages. Large ^ is not the same, and each power is sequentially connected to the corresponding signal processing in the signal processor group 1〇, the first and second feet of the input terminals of the crying Ul, U2, U3 and U4; ° The voltage detection The voltages of any two phase voltages uw and u 2 taken from the motor, M2, M3 and M4 rotors in the motor group 1 are sequentially connected to the corresponding two signals in the signal processor group 10, respectively. == and ^80572 ϋ2, U3 and 1/4 of the input of the 3rd and 4th feet; and the main ^ and similarly connected to the signal processor group 1 wipes pair ^1: stickers, U«3 U3 and U4 The 5th and 6th pins of the input end; * ° 'u processor U1, U2, the output terminals F0, η, 卩2 and 卩3 of the signal U in the signal processor group 10 are sequentially divided盥A/ :(10) and IM converters A/D-1, A/D-2, A/D-3 and A/D-4 are directly connected to the transition state of the transition state group 9; 4 respective input ribs, and the input terminals H0, 扪, H2 and H3 of the converters A/JH and A/D-4 of the A/D converter group 9 t are directly connected. A/D-3 and the conversion in the A/D converter group 9 (10) 'Ti, T2 and T3 are directly connected according to the input terminal II. 0, η·b η· 2 and η 3 of _=== ((10)8, the current limiting wave (L) 13, its input end and (4), D2, D3 and D4 output quotient and electricity -== close connection, - phase and power system The neutral line of the power supply 273 2273^7^ The other end of the capacitor (C) 14 and the positive electrode of the three rectifier diodes of the IGBT1, iGBT? 2 end of the rectifier group 2 and the chopper group 4 "The respective negative poles of the spears 3 intersect at the same time, that is, B; the respective inductances of the thyristors KP1, KP2, and KP3 in the outlet are U and ^ Ρ ^ sense L5 and ride], the inductance L6 and the breaker age ; & broken $FU3 is directly connected to the three-phase line terminals of the power system voltage A, B'C. The thyristors KP1, KP2 and KP3 in the inverter -15 are respectively Wheel mesh series capacitor C3 capacitor C1 and resistor R5, capacitor C2 and resistor R6,
點； 〇電阻器R7同時與其自身的負極並聯相交於一點，即B 制端半橋反向益15中的閘流體KP1、KP2和KP3各自的控 雷客^和⑺與其自身的負極AK、BK和CK之間依次並聯一 ^C4、知C6，幼交於—點，即請； ιοί年7月10日修正替換頁 所述的激磁變壓器⑻16，其3個輸入端^- 接觸器17的3個相對應的觸腳相連接；其3個輪出端依次分別盘 3個整流二極體的正極相連接，繼而3個整流二極體的負極連接^ -點，即C點’再與控制接觸器18的i個觸腳相連接;激壓 器（T1) 16物合端經限流器“1<”繼而與控制接觸器 個觸腳相連接； 所述的激磁接觸器（KML1) 17的3個輸入 電力系統電屢A、B、C三相線端相連接； 対應與 所述的控制接觸器（KML2) 18的2個輸出端觸腳與馬 二線中的任意兩線相連接； 于 所述的切換接觸器（_) 19的3個輸 電力系統電壓A、B、C :她端爐m 對應與 與馬達定子三線相連連接’其3個輸出端觸腳依次 本發明在起重機的上升調整速作業時，基於馬達轉子 =變糸統’多餘的電能始終經同一個反向器回饋回馬達:: 糸:先三而起錢下降作料，馬達定子_通人直 /The 〇 resistor R7 is also connected in parallel with its own negative pole at one point, that is, the respective thyristors KP1, KP2 and KP3 of the B-terminal half-bridge reverse benefit 15 and (7) and their own negative electrodes AK, BK And CK in parallel with a ^C4, know C6, younger at the point, that is, please; ιοί year July 10 modified replacement page of the excitation transformer (8) 16, its three inputs ^ - contactor 17 of 3 The corresponding contact pins are connected; the three wheel ends are respectively connected to the positive poles of the three rectifying diodes, and then the negative terminals of the three rectifying diodes are connected to the ^ point, that is, the C point 're-control The i-contact pins of the contactor 18 are connected; the magnetizer (T1) 16 is connected to the contactor via the current limiter "1<"; the excitation contactor (KML1) 17 The three input power systems are connected to the three-phase ends of the A, B, and C lines; the two output terminals of the control contactor (KML2) 18 and any two of the two lines of the horse are connected. Connection; 3 power transmission system voltages A, B, C of the switching contactor (_) 19: the end of the furnace m corresponds to the third line of the motor stator In the case of the three output terminals of the present invention, the present invention is based on the motor rotor = variable system. The excess electric energy is always fed back to the motor via the same inverter: 糸: first rises Money falling, the motor stator _ pass straight /
=實際上便成了發馬達，處於發電狀態，而且所發的電G 有效節約了能源。 糸、，先只現了牝置回收， 本發明基於採用CPU控制技術，在其主程式 採集的各馬達轉子相電星、整汽控制下’對所 時處理，及時推展各驅動器工作:以；综合即 故障監控、超速限制、以對=載限制、 保護本=人:r實現了 器’它可明‘輸出=字器件的驅動 控制信號，保證截波器有效^力率放大，產生PWM 有欠壓、過流保護，該積體電路内部還設 1380572 際選用 器件為按照馬達額定 戴波器的控制部分也二^顆定功率要求進$ 速建立祕«場，確―駐^祕，可_波器迅 :”是:本發明和:實施性。必須聲 等多種不關構運動，完成現場作業任務，' 2、回轉和行走 拖動多台馬達齡同時㈣工作^ Λ ’還翻於任何需要 織車間不同溫度、濕度的控制；各‘站。諸業中各纺 :因此—巧：二==安= ==精神内。至於本發明的專利特徵由所述的申請= Κιχ 1380572 101年7月10日修正替換頁 【圖式簡單說明】 圖1為習知的起重機用不同工作的馬達變頻調速系統原理 圖。 圖2為本發明第一實施例，用全橋反向器拖動多台馬達異步 同時實現轉子變頻調速系統電原理示意圖。 圖3為本發明第二實施例，用半橋反向器拖動多台馬達異步 同時實現轉子變頻調速系統電原理示意圖。 圖4為本發明第二實施例的信號處理器和驅動控制單元原理 示意圖。 【主要元件符號說明】 1馬達組 2 整流器組 3限流器組 4 截波器組 5隔離器組 6 全橋反向器 7驅動器組 8 微處理器（CPU) 9 A/D轉換器組 10 信號處理器組 11電流檢測器組 12 電壓檢測器組 13、L限流平波器 14 、（：電力電容 15半橋反向器 16 激磁變壓器 17激磁接觸器 18 控制接觸器 19切換接觸器 Ml、M2、M3、M4 馬達 Z 卜 Z2、Z3、Z4 整流器 L 卜 L2、L3、L4 限流器 L5、L6、L7 電感 FU1 ' FU2 ' FU3 熔斷器 Dl、D2、D3、D4 隔離器 Ul、U2、U3、U4 信號處理器 UH、UI2、UI3、UI4 電壓 Uvl ' Uv2 ' Uv3 ' Uv4 電壓 1380572 101年7月10日修正替換頁= In fact, it becomes a motor, it is in a state of power generation, and the generated electricity G effectively saves energy.糸,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Comprehensive is fault monitoring, overspeed limit, with = load limit, protection this = person: r realizes the device 'it can clear' output = word device drive control signal, to ensure the effective rate of the chopper is amplified, generate PWM Undervoltage and overcurrent protection, the internal circuit of the integrated circuit is also equipped with 1,380,572 optional devices to establish the secret field according to the control part of the motor-rated wave-wave device and the constant power requirement. _波器迅:"Yes: The invention and: implementation. Must be a variety of unconstrained movements such as sound, complete the on-site task, '2, slewing and walking to drag multiple motors at the same time (four) work ^ Λ 'also turned over Any control that requires different temperatures and humidity in the weaving workshop; each 'station. Each spinning in the industry: therefore, clever: two == an === within the spirit. As for the patent features of the present invention, the application described is = Κιχ 1380572 101 Corrected replacement page on July 10, 2010 [Picture Fig. 1 is a schematic diagram of a conventional motor variable frequency speed control system for different cranes. Fig. 2 is a first embodiment of the present invention, using a full bridge reverser to drive multiple motors asynchronously and simultaneously implementing rotor frequency control FIG. 3 is a schematic diagram showing the electrical principle of a rotor frequency conversion speed control system by using a half bridge inverter to drive multiple motors asynchronously. FIG. 4 is a schematic diagram of a second embodiment of the present invention. Schematic diagram of the drive and drive control unit. [Main component symbol description] 1 motor group 2 rectifier group 3 current limiter group 4 chopper group 5 isolator group 6 full bridge inverter 7 driver group 8 microprocessor (CPU) 9 A/D converter group 10 signal processor group 11 current detector group 12 voltage detector group 13, L current limiting wave waver 14, (: power capacitor 15 half bridge inverter 16 excitation transformer 17 excitation contactor 18 Control contactor 19 switch contactor Ml, M2, M3, M4 Motor Z Bu Z2, Z3, Z4 Rectifier L Bu L2, L3, L4 Current limiter L5, L6, L7 Inductor FU1 'FU2 ' FU3 Fuse Dl, D2 D3, D4 Remover Ul, U2, U3, U4 signal processor UH, UI2, UI3, UI4 voltage Uvl 'Uv2' Uv3 'Uv4 voltage July 10 1380572101 replacement sheet Amended
Uul ' U〇2 ' Uu3 、M 電 F0、FI、F2、 F3 HO、HI、H2、 H3 TO、ΤΙ、T2、 T3 11.0 ' 11. 1 ' 11.2 ' • 11.3 PI. 0'PL 2' P1.4 ' PI. 6 KP1 ' KP2 > KP3 KML1 KML2 KML3 Q. N K Ri、R2、R3、R4、R5、R6、R7、R, Cl、C2、C3、C4、C5、C6 IGBT1 、 IGBT2 、 IGBT3 、 IGBT4 A/D-1 、 A/D-2 、 A/D-3 、 A/D-4 EX841-1、EX841-2、EX841-3、EX841-4 輸出端 輸入端 輸出端 輸入端 引腳 閘流體 激磁接觸器 控制接觸器 切換接觸器 PNP雙極接面電晶體 零線 限流器 s 電阻 電容 截波器 A/D轉換器 驅動器Uul ' U〇2 ' Uu3 , M Electric F0, FI, F2, F3 HO, HI, H2, H3 TO, ΤΙ, T2, T3 11.0 ' 11. 1 ' 11.2 ' • 11.3 PI. 0'PL 2' P1. 4 ' PI. 6 KP1 ' KP2 > KP3 KML1 KML2 KML3 Q. NK Ri, R2, R3, R4, R5, R6, R7, R, Cl, C2, C3, C4, C5, C6 IGBT1, IGBT2, IGBT3, IGBT4 A/D-1, A/D-2, A/D-3, A/D-4 EX841-1, EX841-2, EX841-3, EX841-4 output terminal input terminal input terminal pin gate Fluid Excitation Contactor Control Contactor Switching Contactor PNP Bipolar Junction Transistor Neutral Current Limiter s Resistor Capacitor A/D Converter Driver