TW201338399A - Motor startup control system and method - Google Patents
Motor startup control system and method Download PDFInfo
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本發明係屬於一種馬達起動控制系統及方法。更詳細地說，本發明係屬於一種無位置感測器無刷直流馬達起動控制系統及方法。The present invention is directed to a motor starting control system and method. In more detail, the present invention pertains to a positionless sensor brushless DC motor starting control system and method.
目前應用在無刷馬達的換相電路概分為感應式及非感應式，其中感應式係主要於馬達內部使用三顆霍爾感測器，該霍爾感測器係檢測馬達轉子換相時的電磁變化，進而將檢測信號予以輸出至馬達驅動器，供馬達驅動器依照換相信號，而提供電流予下一個線圈，令馬達能順利運轉。The commutation circuit currently applied to the brushless motor is divided into an inductive type and a non-inductive type, wherein the inductive type mainly uses three Hall sensors inside the motor, and the Hall sensor detects the commutation of the motor rotor. The electromagnetic change, and then the detection signal is output to the motor driver, and the motor driver supplies current to the next coil according to the commutation signal, so that the motor can run smoothly.
另一種非感應式換相電路即是不採用霍爾感測器，藉由抓取馬達三相線圈的端電壓及反電動勢的變化，配合相關電路的設計，取得三相線圈的換相信號，意即，藉由取得反電動勢的訊號，取代霍爾感測訊號；特別是感測到反電動勢與中性點相交處，使用零交越點來偵測出馬達轉子的區間位置，其中零交越點之相位只要延遲30度，即為有效的換相信號。Another non-inductive commutation circuit is to use a Hall sensor. By grasping the change of the terminal voltage and the back electromotive force of the three-phase coil of the motor, and matching the design of the relevant circuit, the commutation signal of the three-phase coil is obtained. That is, by obtaining the counter electromotive force signal, instead of the Hall sensing signal; in particular, sensing the intersection of the counter electromotive force and the neutral point, using the zero crossing point to detect the position of the motor rotor, where zero crossing The phase of the over-point is a valid commutation signal as long as it is delayed by 30 degrees.
感應式換相電路因需採用三顆霍爾感測器，加上基板及產線組裝等導入的作業程序，成本上相較非感應換相電路會較高，而且霍爾感測器還有安裝環境的限制。某些特殊場合下馬達在長時間運轉下會產生高溫，會影響霍爾感測器換相檢知的可靠度。Inductive commutation circuit requires three Hall sensors, plus the introduction of the substrate and production line assembly, the cost is higher than the non-inductive commutation circuit, and the Hall sensor has The limitations of the installation environment. In some special occasions, the motor will generate high temperature under long-term operation, which will affect the reliability of the Hall sensor's commutation detection.
而非感應式換相電路雖較感應式換相電路來得便宜，但其電路的複雜度亦相對變得更高，並且有轉速範圍限制。再者，以反電動勢為基礎之無感測器換相訊號檢測法，需以開迴路起動機制起動至可估測換相訊號之門檻轉速，但由於開迴路起動受轉矩角效應影響，而使切換至閉迴路換相瞬間參數調整不易。且，市售的無刷直流馬達無感測驅動器，大多針對特定馬達設計，亦即同一驅動器無法順利驅動額定功率相同，但電機或機械參數不同的馬達。故，為了使無刷直流馬達的無感測驅動器能達到泛用型無感測驅動器的功能，開迴路起動及閉迴路換相銜接的可靠度，係改良調速控制系統效能的關鍵之一。Non-inductive commutation circuits are cheaper than inductive commutation circuits, but their circuit complexity is relatively higher and there is a range of speed limits. Furthermore, the sensorless commutation signal detection method based on the back electromotive force needs to start to the threshold of the measurable commutation signal by the open loop starting mechanism, but since the open loop start is affected by the torque angle effect, It is not easy to adjust the parameters to the closed circuit commutation moment. Moreover, commercially available brushless DC motor non-sensing drivers are mostly designed for a specific motor, that is, the same driver cannot smoothly drive a motor with the same rated power but different motor or mechanical parameters. Therefore, in order to make the non-sensing driver of the brushless DC motor reach the function of the general-purpose non-sensing driver, the reliability of the open loop start and closed loop commutation is one of the keys to improve the performance of the speed control system.
有鑑於此，一種能不受轉矩角效應影響，無需相移計算，且不必額外加裝硬體電路的高可靠度起動控制策略，並能改善無感測驅動器的可靠度，及降低閉迴路起動過程中所需電氣功率的馬達起動控制系統及方法，乃是本領域相關人員所極力企求的。In view of this, a high-reliability start-up control strategy that is independent of the torque angle effect, does not require phase shift calculation, and does not require additional hardware circuits, can improve the reliability of the non-sensing driver and reduce the closed loop. The motor starting control system and method for the electrical power required during the starting process are highly sought by those skilled in the art.
本發明之主要目的在於提供一種不受轉矩角效應影響，無需相移計算，且不必額外加裝硬體電路，並能改善無感測驅動器的可靠度，及降低閉迴路起動過程中所需電氣功率的馬達起動控制方法。The main object of the present invention is to provide an effect that is not affected by the torque angle effect, does not require phase shift calculation, and does not require additional hardware circuits, and can improve the reliability of the non-sensing driver and reduce the need for a closed loop starting process. Motor start control method for electric power.
為了達成上述目的，本發明提供一種馬達起動控制方法，適用於無位置感測器無刷直流馬達，包含檢測直流側電流，以及因應直流側電流，藉以判斷馬達之轉矩角的角度，以調整馬達的電樞電壓及/或換相頻率。In order to achieve the above object, the present invention provides a motor starting control method suitable for a position sensorless brushless DC motor, comprising detecting a DC side current and determining a torque angle of the motor in response to a DC side current to adjust Armature voltage and/or commutation frequency of the motor.
本發明之另一目的在於提供一種不受轉矩角效應影響，無需相移計算，且不必額外加裝硬體電路，並能改善無感測驅動器的可靠度，及降低閉迴路起動過程中所需電氣功率的馬達起動控制系統。Another object of the present invention is to provide an effect that is not affected by the torque angle effect, does not require phase shift calculation, and does not require additional hardware circuits, and can improve the reliability of the non-sensing driver and reduce the startup process of the closed loop. Motor start control system requiring electrical power.
為了達成上述另一目的，本發明提供一種馬達起動控制系統，適用於無位置感測器無刷直流馬達，包含三組驅動電路，三組驅動電路之各組驅動電路係由二串接之上下臂電晶體開關所組成，係分別連接至三相線圈的對應端電壓，用以驅動馬達，以及至少一電流感測電路，電性連接該三組驅動電路，用以檢測直流側電流。In order to achieve the above other object, the present invention provides a motor starting control system suitable for a position sensorless brushless DC motor, comprising three sets of driving circuits, and each group of driving circuits of the three groups of driving circuits is connected by two strings. The arm transistor switch is respectively connected to the corresponding terminal voltage of the three-phase coil for driving the motor, and at least one current sensing circuit electrically connected to the three groups of driving circuits for detecting the DC side current.
為使熟悉該項技術人士瞭解本發明之目的、特徵及功效，茲藉由下述具體實施例，並配合所附之圖式，對本發明詳加說明如後：In order to make the person skilled in the art understand the purpose, features and effects of the present invention, the present invention will be described in detail by the following specific embodiments and the accompanying drawings.
以下將透過實施例來解釋本發明內容，其係關於一種馬達起動控制系統及方法。馬達起動控制系統及方法係利用直流側電流，藉以判斷馬達轉矩角的角度，以調整馬達的電樞電壓及/或換相頻率。然而，本發明之實施例並非用以限制實施本發明之任何特定的環境、應用或特殊方式。因此，關於實施例之說明僅為闡釋本發明之目的，而非用以限制本發明。需說明者，以下實施例及圖式中，與本發明非直接相關之元件均已省略而未繪示；且為求簡易瞭解起見，各元件間之尺寸關係並非依照實際比例繪示出。The present invention will be explained below by way of embodiments relating to a motor starting control system and method. The motor start control system and method utilizes a DC side current to determine the angle of the motor torque angle to adjust the armature voltage and/or commutation frequency of the motor. However, the embodiments of the present invention are not intended to limit any particular environment, application, or particular mode of carrying out the invention. Therefore, the description of the embodiments is merely illustrative of the invention and is not intended to limit the invention. It is to be noted that in the following embodiments and drawings, elements that are not directly related to the present invention have been omitted and are not shown; and for the sake of simplicity, the dimensional relationships between the elements are not drawn to scale.
如第1圖所示，係為馬達起動控制方法流程圖，適用於無位置感測器無刷直流馬達，包含步驟101：檢測直流側電流，以及步驟102：因應直流側電流，藉以判斷馬達之轉矩角的角度，以調整馬達的電樞電壓及/或換相頻率。As shown in FIG. 1 , it is a flow chart of a motor starting control method, which is applicable to a position sensorless brushless DC motor, and includes a step 101: detecting a DC side current, and a step 102: determining a motor according to a DC side current. The angle of the torque angle to adjust the armature voltage and/or commutation frequency of the motor.
如第2圖所示，係為馬達起動控制方法流程圖之一實施例，係詳細描述本發明馬達起動控制方法之控制流程；而第3圖係為一電氣區間(60度電氣角)內轉矩角與電流的關係示意圖，以下說明請合併參照第2圖及第3圖：當馬達開始進行無感測器起動程序時，馬達控制流程啟動步驟201：開始。As shown in FIG. 2, it is an embodiment of a flow chart of a motor starting control method, which is a detailed description of the control flow of the motor starting control method of the present invention; and FIG. 3 is an electrical section (60 degree electrical angle) internal rotation. Schematic diagram of the relationship between the moment angle and the current. For the following description, please refer to FIG. 2 and FIG. 3 together. When the motor starts the non-sensor starting procedure, the motor control flow starts in step 201: Start.
接著，係步驟202：馬達是否換相。Next, step 202 is: whether the motor is commutating.
由於馬達在一電氣週期內會換相六次，若還沒換相則持續紀錄當前電流值；若一完成換相，則代表前一區間的電流波形變化已知，此時開始判斷電流變化。Since the motor will be commutated six times in one electrical cycle, if the phase has not been commutated, the current current value is continuously recorded; if the commutation is completed, the current waveform change representing the previous interval is known, and the current change is judged at this time.
若馬達無換相，則進行步驟203：讀取當前電流回授值，接著便執行步驟209：結束。If the motor is not commutating, proceed to step 203: read the current current feedback value, and then perform step 209: end.
若馬達已換相，則執行步驟204以進行判斷，步驟204係判斷直流側電流之換相起始電流t1是否趨近換相終止電流t2，其電流波形如第3圖301所示。If the motor has been commutated, step 204 is performed to determine. Step 204 is to determine whether the commutation start current t1 of the DC current is approaching the commutation termination current t2, and the current waveform is as shown in FIG.
若直流側電流之換相起始電流t1趨近於換相終止電流t2，則執行步驟205：轉矩角δ的角度趨近90度，不調整馬達的電樞電壓及/或換相頻率；接著便執行步驟209：結束。If the commutation start current t1 of the DC side current approaches the commutation termination current t2, step 205 is performed: the angle of the torque angle δ approaches 90 degrees, and the armature voltage and/or the commutation frequency of the motor are not adjusted; Then step 209 is executed: the end.
若直流側電流之換相起始電流t1不趨近於換相終止電流t2，則執行步驟206以進行判斷，步驟206係為直流側電流之換相起始電流t1是否小於換相終止電流t2，其電流波形如第3圖302所示。If the commutation start current t1 of the DC current does not approach the commutation termination current t2, step 206 is performed to determine, and step 206 is whether the commutation start current t1 of the DC current is less than the commutation termination current t2. The current waveform is as shown in FIG.
若直流側電流之換相起始電流t1小於換相終止電流t2，則執行步驟207：轉矩角δ的角度小於90度，降低馬達的電樞電壓及/或調升換相頻率；接著便執行步驟209：結束。If the commutation start current t1 of the DC current is less than the commutation termination current t2, step 207 is performed: the angle of the torque angle δ is less than 90 degrees, the armature voltage of the motor is lowered and/or the commutation frequency is increased; Go to Step 209: End.
若直流側電流之換相起始電流t1大於換相終止電流t2，則執行步驟208：直流側電流之換相起始電流t1大於換相終止電流t2，其電流波形如第3圖303所示，轉矩角δ的角度大於90度，增加馬達的電樞電壓及/或調降換相頻率；接著便執行步驟209：結束。If the commutation start current t1 of the DC current is greater than the commutation termination current t2, step 208 is performed: the commutation start current t1 of the DC current is greater than the commutation termination current t2, and the current waveform is as shown in FIG. The angle of the torque angle δ is greater than 90 degrees, increasing the armature voltage of the motor and/or decreasing the commutation frequency; and then performing step 209: ending.
如第4圖所示，係為本發明馬達起動控制系統之電路圖，馬達起動控制系統4適用於無位置感測器無刷直流馬達，包含三組驅動電路401~403以及至少一電流感測電路404。三組驅動電路401~403之各組驅動電路係由二串接之上下臂電晶體開關S1~S6所組成，係分別連接至三相線圈的對應端電壓，用以驅動馬達。至少一電流感測電路404，則電性連接三組驅動電路401~403，用以檢測直流側電流。As shown in FIG. 4, it is a circuit diagram of the motor starting control system of the present invention. The motor starting control system 4 is applicable to a position sensorless brushless DC motor, and includes three sets of driving circuits 401~403 and at least one current sensing circuit. 404. Each group of driving circuits of the three sets of driving circuits 401 to 403 is composed of two series upper and lower arm transistor switches S1 to S6, which are respectively connected to corresponding terminal voltages of the three-phase coils for driving the motor. The at least one current sensing circuit 404 is electrically connected to the three sets of driving circuits 401 to 403 for detecting the DC side current.
如第5圖所示，係為馬達起動控制系統一實施例之電路圖，本實施例之馬達起動控制系統5與前述馬達起動控制系統4不同之處在於，電流感測電路係由一分流電阻504所組成，該一個分流電阻504串接三組驅動電路之下臂電晶體開關S2、S4、S6。As shown in FIG. 5, which is a circuit diagram of an embodiment of the motor starting control system, the motor starting control system 5 of the present embodiment is different from the motor starting control system 4 in that the current sensing circuit is constituted by a shunt resistor 504. The one shunt resistor 504 is connected in series with the three sets of drive circuit lower arm transistor switches S2, S4, S6.
如第6圖所示，係為馬達起動控制系統另一實施例之電路圖。需說明的是，在實施方式說明中，與前述內容相同之處將不予贅述。本實施例馬達起動控制系統6與前述實施例不同之處在於，電流感測電路係由三個分流電阻604、605、606所組成，三個分流電阻604、605、606分別串接相對應之該組驅動電路之下臂電晶體開關S2、S4、S6。As shown in Fig. 6, it is a circuit diagram of another embodiment of the motor starting control system. It should be noted that, in the description of the embodiments, the same points as those described above will not be described. The motor starting control system 6 of this embodiment is different from the previous embodiment in that the current sensing circuit is composed of three shunt resistors 604, 605, and 606, and three shunt resistors 604, 605, and 606 are respectively connected in series. The set of drive circuit lower arm transistor switches S2, S4, S6.
如第7圖所示，係為馬達起動控制系統之再一實施例之電路圖，與前述實施例不同之處在於，本實施例馬達起動控制系統7更包含電流放大電路705及邏輯電路706。電流放大電路705，可透過運算放大器(Operational Amplifier)所構成之電路放大直流側電流，回授直流測電流分壓值供邏輯電路706判讀。邏輯電路706，可為微控制器(Micro Control Unit，MCU)，透過邏輯電路706，可用以因應經電流放大電路705放大後之直流側電流，藉以判斷馬達之轉矩角的角度，以調整馬達的電樞電壓及/或換相頻率。需說明的是，馬達起動控制系統7之電流感測電路704，係可為一個分流電阻。As shown in FIG. 7, a circuit diagram of still another embodiment of the motor starting control system is different from the foregoing embodiment in that the motor starting control system 7 of the present embodiment further includes a current amplifying circuit 705 and a logic circuit 706. The current amplifying circuit 705 can amplify the DC side current through a circuit formed by an operational amplifier (Aperture Amplifier), and feedback the DC measured current divided value for the logic circuit 706 to interpret. The logic circuit 706 can be a Micro Control Unit (MCU). The logic circuit 706 can be used to adjust the motor to determine the angle of the torque angle of the motor according to the DC side current amplified by the current amplifying circuit 705. Armature voltage and / or commutation frequency. It should be noted that the current sensing circuit 704 of the motor starting control system 7 can be a shunt resistor.
如第8圖所示，係為馬達起動控制系統之又一實施例之電路圖，茲舉本實施例並搭配第9圖(直流側電流波形示意圖)與第3圖(一電氣區間60度電氣角內轉矩角與電流的關係示意圖)，以述明本發明馬達起動控制系統8係如何透過直流側電流，以判斷轉矩角的角度。As shown in FIG. 8, it is a circuit diagram of still another embodiment of the motor starting control system, and the present embodiment is combined with FIG. 9 (current-side current waveform diagram) and FIG. 3 (an electrical interval of 60 degrees electrical angle). The relationship between the internal torque angle and the current is used to describe how the motor starting control system 8 of the present invention transmits the DC side current to determine the angle of the torque angle.
本發明馬達起動控制系統8利用回授直流側電流波形變化，以判斷轉矩角的角度作為自動調整之依據。如圖8所示，包含三組驅動電路801~803及電流感測電路(分流電阻)804，馬達起動控制系統8使用一個分流電阻804搭配運算放大器805進行電流回授，電路成本相對低於常見的電流感測器。而邏輯電路806係為微控制器，其係用以因應經電流放大電路805放大後之直流側電流，藉以判斷馬達之轉矩角的角度，以調整馬達的電樞電壓及/或換相頻率。The motor starting control system 8 of the present invention utilizes the feedback of the DC side current waveform change to determine the angle of the torque angle as the basis for the automatic adjustment. As shown in FIG. 8, three sets of driving circuits 801 to 803 and a current sensing circuit (shunting resistor) 804 are included. The motor starting control system 8 uses a shunt resistor 804 and an operational amplifier 805 for current feedback, and the circuit cost is relatively lower than that of the common circuit. Current sensor. The logic circuit 806 is a microcontroller for adjusting the DC arm current amplified by the current amplifying circuit 805 to determine the angle of the torque angle of the motor to adjust the armature voltage and/or the commutation frequency of the motor. .
如第9圖所示，已知直流側電流一電氣週期可劃分為六個區間，在轉矩角不變情況下，每一區間電流波形相同，又轉矩角的不同，電流波形亦不盡相同。As shown in Fig. 9, it is known that the DC-side current-electrical cycle can be divided into six sections. When the torque angle is constant, the current waveforms of each section are the same, and the torque angle is different, and the current waveform is also incomplete. the same.
請參閱前述第3圖，已知轉矩角不變情況下，每區間電流波形相同。今取區間0加以觀察，開迴路起動定轉速情況下，t1為換相初始位置，t2為截止位置，當轉矩角δ趨近90度時，若擷取t1及t2瞬時電流，此時兩者電流值幾乎相等，如電流波形301所示。Please refer to Figure 3 above. It is known that the current waveform is the same for each interval when the torque angle is constant. Take the interval 0 to observe, when the open circuit starts to set the fixed speed, t1 is the initial position of the commutation, t2 is the cut-off position. When the torque angle δ approaches 90 degrees, if the instantaneous currents of t1 and t2 are taken, then two The current values are nearly equal, as shown by current waveform 301.
反之，當轉矩角δ低於90度時，此時直流側電流峰值由低至高，初始位置擷取之電流遠小於截止位置電流值，如電流波形302所示。Conversely, when the torque angle δ is lower than 90 degrees, the DC side current peak value is low to high at this time, and the current drawn at the initial position is much smaller than the cutoff position current value, as shown by the current waveform 302.
當轉矩角高於90度時，此時直流側電流波形異於上述兩種，且換相初始位置擷取之電流大於截止位置電流值，如電流波形303所示。When the torque angle is higher than 90 degrees, the DC side current waveform is different from the above two types, and the current drawn by the commutation initial position is greater than the cutoff position current value, as shown by the current waveform 303.
本發明之馬達起動控制系統及方法即利用以上關係，馬達轉速不變情況下，若t1電流小於t2電流，代表轉矩角小於90度，需調降電樞電壓及/或調快換相頻率以減小樞磁場強度，使轉矩角趨近於正交；若t1電流大於t2電流，則代表轉矩角大於90度，此時需調高電樞電壓及/或調慢換相頻率以增強樞磁場強度，減少轉矩角度。當轉矩角度趨近90度，此時無感測器起動換相效果同有感測器換相，無感測器起動不易失敗。The motor starting control system and method of the present invention utilizes the above relationship, if the motor speed is constant, if the t1 current is less than the t2 current, the representative torque angle is less than 90 degrees, and the armature voltage and/or the fast commutation frequency need to be lowered. To reduce the strength of the pivotal magnetic field, the torque angle is close to orthogonal; if the current of t1 is greater than the current of t2, the torque angle is greater than 90 degrees. In this case, the armature voltage should be increased and/or the commutation frequency should be slowed down. Increase the strength of the pivotal magnetic field and reduce the torque angle. When the torque angle approaches 90 degrees, the sensorless commutation effect at the same time is the same as that of the sensor, and the sensorless start is not easy to fail.
綜上所陳，本發明之馬達起動控制系統及方法尚具有下述優點：In summary, the motor starting control system and method of the present invention has the following advantages:
1.本發明之另一特性為電流回授訊號無需許用高/低通濾波器，其電流回授時機與PWM切換頻率有關，當電晶體開關導通時才回授電流值，其優點為無訊號落後問題，可有效取得當前電流。1. Another feature of the present invention is that the current feedback signal does not need to use a high/low pass filter, and the current feedback timing is related to the PWM switching frequency. When the transistor switch is turned on, the current value is returned, and the advantage is none. The problem of backward signal can effectively obtain the current current.
2.藉由觀察直流側電流波形之變化，作為追蹤轉矩角之設計準則，可使開迴路起動過程不易失敗，且隨著外部負載改變，輸入之電樞電壓與換相頻率關係亦隨之改變，無須手動重新調整，具有起動高可靠度的特色。2. By observing the change of the DC side current waveform, as the design criterion of the tracking torque angle, the open circuit starting process is not easy to fail, and as the external load changes, the relationship between the input armature voltage and the commutation frequency also follows. Change, no need to manually re-adjust, with the characteristics of high starting reliability.
3.本發明在不需知道電流具體大小、外界溫度、外界負載及系統參數下，以簡易及容易實現的方式確保馬達定子磁場及轉子磁場為正交或可控制為任意的角度，有別於現有回授端電壓相關技術，需要繁瑣的濾波電路或複雜的演算法則與相移計算。相對於現有以試誤法配合變壓變頻開迴路起動的技術，本發明具體提升起動過程中的可靠度、降低輸入電流，及縮短起動過程中所需的時間。3. The invention ensures that the motor stator magnetic field and the rotor magnetic field are orthogonal or controllable to an arbitrary angle in a simple and easy way without knowing the current specific size, the external temperature, the external load and the system parameters, which is different from Existing feedback voltage related technologies require cumbersome filtering circuits or complex algorithms and phase shift calculations. Compared with the prior art with the trial and error method combined with the variable voltage variable frequency open circuit starting, the present invention specifically improves the reliability during the starting process, reduces the input current, and shortens the time required during the starting process.
4.本發明針對開迴路起動部份提出具體的改善方法，使開迴路起動在外部負載變化及相序不明的情況下，能自動調整電樞電壓與換相頻率；在確定轉矩角正交的條件下，進行電子換相開閉迴路的銜接，以有效降低起動失敗的機會。4. The present invention proposes a specific improvement method for the open circuit starting part, so that the open circuit start can automatically adjust the armature voltage and the commutation frequency under the condition of external load change and phase sequence unknown; Under the conditions, the electronic commutation open circuit is connected to effectively reduce the chance of failure.
因此，本發明提出不受轉矩角效應影響，無需相移計算且不必加裝額外硬體電路的高可靠度起動控制策略，並能改善無感測驅動器的可靠度，及降低開迴路起動過程中所需電氣功率的馬達起動控制系統及方法。Therefore, the present invention proposes a high-reliability starting control strategy that is not affected by the torque angle effect, does not require phase shift calculation and does not require the addition of an additional hardware circuit, and can improve the reliability of the non-sensing driver and reduce the open circuit starting process. A motor starting control system and method for electrical power required.
藉由以上較佳具體實施例之詳述係希望能更加清楚描述本發明之特徵與精神，而並非以上述所揭露的較佳具體實施例來對本發明之範疇加以限制。相反地，其目的是希望能涵蓋各種改變及具相等性的安排於本發明所欲申請之專利範圍內。The features and spirit of the present invention will be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.
101~102．．．步驟101~102. . . step
201~209．．．步驟201~209. . . step
301~303．．．電流波形301~303. . . Current waveform
4．．．馬達起動控制系統4. . . Motor start control system
401~403．．．驅動電路401~403. . . Drive circuit
404．．．電流感測電路404. . . Current sensing circuit
S1~S6．．．上下臂電晶體開關S1~S6. . . Upper and lower arm transistor switch
5．．．馬達起動控制系統5. . . Motor start control system
504．．．分流電阻504. . . Shunt resistor
6．．．馬達起動控制系統6. . . Motor start control system
604~606．．．分流電阻604~606. . . Shunt resistor
7．．．馬達起動控制系統7. . . Motor start control system
704．．．電流感測電路704. . . Current sensing circuit
705．．．電流放大電路705. . . Current amplifying circuit
706．．．邏輯電路706. . . Logic circuit
8．．．馬達起動控制系統8. . . Motor start control system
801~803．．．驅動電路801~803. . . Drive circuit
804．．．分流電阻804. . . Shunt resistor
805．．．運算放大器805. . . Operational Amplifier
806．．．邏輯電路806. . . Logic circuit
第1圖為馬達起動控制方法流程圖；Figure 1 is a flow chart of the motor starting control method;
第2圖為馬達起動控制方法流程圖之一實施例，係詳細描述本發明馬達起動控制方法之控制流程；2 is an embodiment of a flow chart of a motor starting control method, which is a detailed description of a control flow of the motor starting control method of the present invention;
第3圖為一電氣區間(60度電氣角)內轉矩角與電流的關係示意圖；Figure 3 is a schematic diagram showing the relationship between torque angle and current in an electrical interval (60 degree electrical angle);
第4圖為馬達起動控制系統之電路圖；Figure 4 is a circuit diagram of the motor starting control system;
第5圖為馬達起動控制系統一實施例之電路圖；Figure 5 is a circuit diagram of an embodiment of a motor starting control system;
第6圖為馬達起動控制系統另一實施例之電路圖；Figure 6 is a circuit diagram of another embodiment of a motor starting control system;
第7圖為馬達起動控制系統之再一實施例之電路圖；Figure 7 is a circuit diagram of still another embodiment of the motor starting control system;
第8圖為馬達起動控制系統之又一實施例之電路圖；以及Figure 8 is a circuit diagram of yet another embodiment of a motor starting control system;
第9圖為直流側電流波形示意圖。Figure 9 is a schematic diagram of the current waveform on the DC side.
101~102．．．步驟101~102. . . step
Claims (9)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111032945A (en) * | 2017-09-01 | 2020-04-17 | 伊莱克斯家用电器股份公司 | Washing machine for washing items, equipped with an electric drive unit to operate an electric motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111032945A (en) * | 2017-09-01 | 2020-04-17 | 伊莱克斯家用电器股份公司 | Washing machine for washing items, equipped with an electric drive unit to operate an electric motor |
| CN111032945B (en) * | 2017-09-01 | 2021-08-24 | 伊莱克斯家用电器股份公司 | Washing machine for washing items, equipped with an electric drive unit to operate an electric motor |
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