WO2009116360A1 - インバータの駆動装置 - Google Patents
インバータの駆動装置 Download PDFInfo
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- WO2009116360A1 WO2009116360A1 PCT/JP2009/053226 JP2009053226W WO2009116360A1 WO 2009116360 A1 WO2009116360 A1 WO 2009116360A1 JP 2009053226 W JP2009053226 W JP 2009053226W WO 2009116360 A1 WO2009116360 A1 WO 2009116360A1
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- inverter
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/16—Modifications for eliminating interference voltages or currents
- H03K17/168—Modifications for eliminating interference voltages or currents in composite switches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0029—Circuits or arrangements for limiting the slope of switching signals, e.g. slew rate
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/16—Modifications for eliminating interference voltages or currents
- H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
- H03K17/162—Modifications for eliminating interference voltages or currents in field-effect transistor switches without feedback from the output circuit to the control circuit
- H03K17/163—Soft switching
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/16—Modifications for eliminating interference voltages or currents
- H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
- H03K17/165—Modifications for eliminating interference voltages or currents in field-effect transistor switches by feedback from the output circuit to the control circuit
- H03K17/166—Soft switching
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/0036—Means reducing energy consumption
Definitions
- the present invention relates to an inverter drive device, and more particularly to suppression of surge voltage and reduction of steady loss (ON loss).
- the inverter normally converts a DC power into an AC power by switching a power transistor such as an IGBT (Insulated Gate Bipolar Transistor) or the like with a three-arm bridge connection and performing gate control of these power transistors.
- a power transistor such as an IGBT (Insulated Gate Bipolar Transistor) or the like with a three-arm bridge connection and performing gate control of these power transistors.
- Patent Document 1 discloses a predetermined voltage value in which the temperature including the surge voltage applied to the IGBT is lower than the allowable withstand voltage of the IGBT, using the output command current, the battery voltage, and the IGBT temperature as parameters. A configuration for controlling the resistance value of the gate resistance is disclosed.
- Patent Document 2 discloses that the gate voltage is adjusted in accordance with the IGBT temperature and DC side voltage information. Specifically, the temperature of the cooling water of the element is low and there is a thermal margin. It is disclosed that the gate voltage is set low to reduce noise, and when the inverter DC side voltage is high, the gate voltage is increased to reduce switching loss.
- FIG. 14 shows the configuration of the prior art. It is a block diagram of the inverter apparatus for motor drive.
- the DC voltage of the battery 1 is converted into a variable voltage / variable frequency three-phase AC voltage by the inverter device 2 and supplied to the AC motor 3.
- the inverter device 2 includes an inverter main circuit 21, a voltage smoothing capacitor 22, and an inverter control device 23.
- the inverter main circuit 21 is configured by connecting IGBTs 211 in a three-phase bridge, and each IGBT 211 includes an anti-parallel diode 212. Is provided.
- the inverter control device 23 has a gate drive circuit 231 that applies a gate voltage to the IGBT 211 and drives them on and off.
- a gate power supply circuit 232 capable of adjusting the voltage is provided, and the output voltage is controlled by the gate power supply voltage control circuit 233.
- a voltage command is given from the voltage command device 234 to the gate power supply voltage control circuit 233.
- the voltage command device 234 acquires the output of the voltage detector 235 that detects the DC voltage of the inverter main circuit 21 and the temperature detector 238 that detects the temperature of the IGBT 211 or the cooling water that cools these IGBTs, and determines the voltage command. .
- the voltage detector 235 detects the voltage between the DC side terminals P and N of the inverter main circuit 21, that is, the voltage of the voltage smoothing capacitor 22, and when this DC voltage is high, the switching loss also increases. To reduce. Further, when the output of the temperature detector 238 for detecting the temperature of the IGBT 211 or the cooling water is low and there is a margin in the thermal loss of the IGBT 211, the gate voltage is increased to reduce the switching noise of the element.
- Patent Document 3 discloses that the temperature of the power semiconductor switching element is detected, and the temperature dependence of the element loss is reduced by varying the gate voltage or the gate resistance based on the detected value. Specifically, it is disclosed that the gate voltage is increased or the gate resistance is decreased when the element temperature is high. JP 2001-169407 A JP 2007-89325 A JP 2007-259576 A
- An object of the present invention is to provide an inverter drive device that can achieve both suppression of surge voltage and reduction of steady loss.
- the present invention is an inverter driving device having a semiconductor switching element, comprising: arithmetic means for calculating a surge voltage based on at least the temperature, current, and DC side voltage of the semiconductor switching element; and a gate of the semiconductor switching element.
- Gate voltage application means for applying a gate voltage characterized by comprising gate voltage application means for increasing / decreasing the gate voltage based on the calculated surge voltage and device breakdown voltage of the semiconductor switching element.
- the gate voltage applying means controls the gate voltage to be higher than a predetermined reference value when the surge voltage is smaller than the element withstand voltage and the difference exceeds a predetermined threshold voltage,
- the gate voltage may be used as the reference value when the difference is equal to or less than a predetermined threshold value.
- the gate voltage applying means may set the gate voltage lower than the reference value when a current flowing through the switching element is equal to or lower than a predetermined threshold current.
- the gate voltage applying means may lower the gate voltage below the reference value or further than the gate voltage after the increase / decrease control when the temperature of the switching element is equal to or lower than a predetermined threshold temperature. It may be set low.
- accelerator opening detection unit 10 accelerator opening detection unit, 12 DC voltage detection unit, 14 IGBT temperature detection unit, 16 command current value output unit, 18 IGBT gate switching unit, 20 gate voltage calculation unit, 22 gate voltage control unit, 24 rotation position sensor.
- FIG. 1 shows a configuration of an inverter control circuit in the present embodiment.
- the inverter control circuit includes various sensors, a gate voltage calculation unit 20 that calculates a gate voltage based on data from the various sensors, and a gate voltage control unit 22 that controls the gate voltage of the IGBT of the inverter based on a command from the gate voltage calculation unit 20.
- a gate voltage calculation unit 20 that calculates a gate voltage based on data from the various sensors
- a gate voltage control unit 22 that controls the gate voltage of the IGBT of the inverter based on a command from the gate voltage calculation unit 20.
- the accelerator opening detection unit 10 detects the accelerator opening by the driver's operation and supplies it to the command current value output unit 16.
- the DC voltage detection unit 12 detects the DC voltage of the inverter and supplies it to the gate voltage calculation unit 20.
- the IGBT temperature detection unit 14 detects the temperature of the IGBT or the temperature of the cooling water of the IGBT and supplies it to the gate voltage calculation unit 20.
- the command current value output unit 16 sets a command current value based on the accelerator opening data detected by the accelerator opening detector 10 and supplies the command current value to the gate voltage calculator 20 and the IGBT gate switching unit 18.
- the IGBT gate switching unit 18 outputs a gate switching command to each IGBT block constituting the inverter, and controls on / off of the IGBT in each IGBT block.
- the IGBT block is configured by connecting IGBTs in a three-phase bridge as in the conventional inverter main circuit 21 shown in FIG. 14, and each IGBT 211 includes an anti-parallel diode 212.
- the driving current of the U phase, V phase, and W phase is supplied to the motor M from each IGBT block.
- the motor M is a so-called motor generator that also functions as a generator, but is simply referred to as a motor M in this embodiment.
- the motor M is provided with a rotational position sensor 24 that detects a rotational position, and supplies a position detection signal to the IGBT gate switching unit 18.
- the IGBT gate switching unit 18 controls on / off of each IGBT based on the command current value and the rotational position.
- the gate voltage calculation unit 20 includes DC voltage data from the DC voltage detection unit 12, temperature data from the IGBT temperature detection unit 14, command current value from the command current value output unit 16, and gate switching from the IGBT gate switching unit 18. Based on the command, the gate voltage is calculated and the gate voltage command value is supplied to the gate voltage control unit 22. Specifically, the gate voltage calculation unit 20 calculates the surge voltage of the IGBT based on the DC voltage data, the temperature data, and the command current value, compares the surge voltage with the element breakdown voltage of the IGBT, and according to the comparison result. To calculate the gate voltage. As the gate voltage, three stages of a normal voltage, a voltage higher than normal, and a voltage lower than normal are prepared, and the gate voltage is calculated by selecting one of these. The normal voltage can be rephrased as a reference voltage. The normal voltage as the reference voltage is set to 15 V, for example.
- the gate voltage control unit 22 adjusts the gate voltage to any one of the three levels according to the gate voltage command value from the gate voltage calculation unit 20 and supplies it to the gate of each IGBT in the IGBT block.
- FIG. 2 shows a circuit configuration of the gate voltage control unit 22 in FIG.
- the gate voltage control unit 22 uses an insulated power supply provided for each of the upper and lower arms of the U, V, and W phases as a power supply voltage.
- the voltage conversion circuit 22b converts the voltage from the insulated power supply 22a provided for each upper and lower arm of each phase based on the gate voltage command value from the gate voltage calculation unit 20 and supplies the converted voltage to the IGBT drive circuit 22c.
- the IGBT drive circuit 22c has a rectifier circuit, a capacitor, and a switching element, and is connected to the gate of each IGBT.
- the rectifier circuit supplies the gate voltage after voltage conversion to the switching element, and applies the gate voltage to the gate of the IGBT by the switching element that is turned on / off according to the gate switching command from the IGBT gate switching unit 18.
- FIG. 3 shows a processing flowchart of the present embodiment.
- the command current value output unit 16 determines a command current value corresponding to the accelerator opening (S101). Further, the DC voltage of the inverter, that is, the battery voltage and the IGBT temperature are detected by the detection units 12 and 14, respectively (S102). Then, the surge voltage of the IGBT is calculated based on the IGBT temperature, the battery voltage, and the command current value (S103).
- the relationship between IGBT temperature, battery voltage, command current value and surge voltage is measured in advance at a plurality of measurement points, a map is created and stored in a memory, and this map is used to refer to the current It is calculated by reading the surge voltage corresponding to the IGBT temperature, battery voltage, and command current value. If it is not on the map, it is calculated by interpolation using neighboring points.
- the gate voltage is calculated based on the surge voltage (S104). Specifically, the device breakdown voltage of the IGBT and the surge voltage are compared in magnitude, and the gate voltage is calculated according to whether the surge voltage has a margin. Generally, when the gate voltage of the inverter is increased, the surge voltage increases. When the surge voltage exceeds the device breakdown voltage of the IGBT, breakdown occurs. Therefore, the gate resistance and the gate voltage are set so that the surge voltage is lower than the device breakdown voltage. Thus, the gate voltage set so as to be equal to or lower than the element breakdown voltage is a normal value (reference value).
- the steady loss is suppressed by determining the condition where the surge voltage is lower than the element breakdown voltage and increasing the gate voltage when it is determined that the surge voltage has a sufficient margin.
- the element withstand voltage is Vth and the normal value (reference value) set to be equal to or less than the element withstand voltage is Vg0
- Vg0 is increased to Vg1 when the surge voltage has a sufficient margin (Vg0 ⁇ Vg1 ⁇ Vth).
- FIG. 4 and 5 show the current dependence of the surge voltage at turn-on (FIG. 4) and turn-off (FIG. 5). In both figures, the case where the gate voltage is 15V is compared with the case where the gate voltage is 18V.
- the surge voltage decreases as the current increases, and the surge voltage increases as the gate voltage increases.
- the condition that the surge voltage ⁇ the element withstand voltage is in the range A. In this range, there is no problem because the surge voltage has a margin even if the gate voltage is increased from 15 V to 18 V.
- Whether or not the surge voltage has a margin can be determined by, for example, calculating the difference between the element breakdown voltage and the surge voltage and determining whether or not the difference value is equal to or greater than a predetermined threshold value. If (element breakdown voltage-surge voltage)> threshold, the surge voltage has a margin, and the gate voltage is increased. If (element breakdown voltage-surge voltage) ⁇ threshold, the surge voltage has no margin (usually ( The gate voltage of the reference value is maintained as it is.
- the surge voltage is calculated and compared with the element breakdown voltage to determine whether or not the surge voltage has a margin.
- the gate voltage is set to the normal value ( The steady loss can be reduced by setting it higher than the reference value.
- the gate voltage is switched to a higher value than usual when there is a surplus in the surge voltage, but the voltage value higher than the normal value (reference value) is not only a fixed value, but also the element withstand voltage and surge voltage. It may be a variable value that gradually changes according to the difference value. That is, the gate voltage is set higher as the surge voltage has a margin.
- FIG. 6 shows an example of the upper and lower arms of each phase constituting the inverter and the current flow.
- a current flows through the IGBT 1 of the upper arm, but no current flows through the IGBT 2 of the lower arm.
- the drive circuit 22c of the IGBT 2 in which no current flows is doing useless work.
- the loss in the IGBT drive circuit 22c is reduced by setting the gate voltage of the IGBT drive circuit 22c driving the IGBT element through which no current flows.
- FIG. 7 shows a configuration of the IGBT drive circuit 22c in the present embodiment.
- the difference from the IGBT drive circuit 22c shown in FIG. 2 is that it further includes a voltage conversion circuit 22d in addition to the voltage conversion circuit 22b.
- the voltage conversion circuit 22d controls the gate voltage according to the gate voltage command value from the gate voltage calculation unit 20. Specifically, the gate voltage is switched in two stages: a normal voltage and a voltage lower than normal.
- the voltage conversion circuits 22b and 22d are provided in FIG. 7, the voltage change circuit 22b is not necessary if only the loss in the IGBT drive circuit 22c is reduced.
- FIG. 8 shows a processing flowchart of the present embodiment.
- the gate voltage calculation unit 20 compares the load current (referred to as the current supplied to the motor M, the direction flowing into the motor M being positive) with a set value (for example, 0 A) (S201). When the value exceeds the set value, the gate drive voltage of the upper arm IGBT is set to a normal value, and the gate drive voltage of the lower arm IGBT is set to a voltage lower than normal (S202). Therefore, in the example of FIG. 6, the gate voltage of the IGBT 1 through which the current flows is set to a normal value, and the gate voltage of the IGBT 2 through which no current flows is set to a value lower than the normal value.
- the gate drive voltage of the IGBT of the upper arm is set to a voltage lower than normal, and the gate drive voltage of the IGBT of the lower arm is set to a normal value (S203). Therefore, in the example of FIG. 6, the gate voltage of the IGBT 3 in which no current flows is set to a value lower than normal, and the gate voltage of the IGBT 4 in which current flows is set to a normal value.
- the gate voltage is controlled using the load current supplied to the motor M.
- it can be controlled using the upper arm element current or the lower arm element current as shown in FIG.
- the current flowing through the IGBT of the upper arm is defined as the upper arm element current
- the current flowing through the IGBT of the lower arm is defined as the lower arm element current
- the direction of the arrow in the figure is defined as positive.
- FIG. 10 shows a processing flowchart in the case of control using the upper arm element current.
- the upper arm device current is compared with a set value (for example, 0A) (S301). If the set value exceeds the set value, the IGBT gate voltage of the upper arm is set to the normal value (S302). The gate voltage of the IGBT of the arm is set low (S303). Therefore, in the example of FIG. 6, the gate voltage of the IGBT 1 through which the current flows is set to a normal value, and the gate voltage of the IGBT 2 through which no current flows is set to a value lower than the normal value.
- a set value for example, 0A
- FIG. 11 shows a processing flowchart in the case of control using the lower arm element current.
- the lower arm element current is compared with a set value (for example, 0 A) (S401). If the set value exceeds the set value, the gate voltage of the lower arm IGBT is set to the normal value (S402), and the set value is not exceeded.
- the gate voltage of the IGBT of the arm is set low (S403). Therefore, in the example of FIG. 6, the gate voltage of the IGBT 3 in which no current flows is set to a value lower than normal, and the gate voltage of the IGBT 4 in which current flows is set to a normal value.
- the loss of the drive circuit 22c can be reduced by setting the gate voltage of the IGBT in which no current flows to a low value.
- the gate voltage when the surge voltage has a margin, the gate voltage can be set higher than usual to reduce the steady loss, and when the IGBT temperature or the cooling water temperature is low, the element breakdown voltage is reduced. Accordingly, the gate is also set low, but the state where the gate voltage is relatively high is maintained in order to reduce the steady loss, and as a result, the state where the device breakdown voltage is low is maintained for a long time.
- the gate voltage is set to a lower value to intentionally increase the steady loss, thereby raising the temperature of the IGBT in a short time.
- FIG. 12 shows a processing flowchart of the present embodiment.
- the gate voltage calculator 20 compares the IGBT element temperature or the coolant temperature detected by the IGBT temperature detector 14 with a predetermined threshold temperature (S501). When the element temperature or the cooling water temperature is lower than the threshold temperature, the gate voltage is set low and the temperature is raised (S502). This gate voltage is a value lower than the gate voltage set in S104 of FIG. On the other hand, when the element temperature or the cooling water temperature is equal to or higher than the threshold temperature, the normal gate voltage is set (S503). This gate voltage is the gate voltage set in S104 of FIG.
- FIG. 13 shows a process flowchart in which the processes of the first to third embodiments are combined.
- the gate voltage calculation unit 20 determines whether the IGBT temperature or the cooling water temperature is lower than a predetermined threshold temperature (S601). If the IGBT temperature or the cooling water temperature is lower than the threshold temperature, the gate voltage is set lower than the normal value, and the temperature is raised by heat generated by steady loss (S602).
- the IGBT temperature or the cooling water temperature is equal to or higher than the threshold temperature, it is next determined whether or not the load current exceeds a threshold value (for example, 0 A) (S603). If the load current does not exceed the threshold value, the gate voltage of the IGBT in which no current flows is set low in order to reduce the loss of the drive circuit 22c (S604).
- the gate voltage of the IGBT through which the current flows is set according to the processing of the first embodiment. That is, the surge voltage is calculated (predicted), and it is determined whether or not the difference between the element withstand voltage and the surge voltage exceeds a predetermined threshold (S605).
- the gate voltage When the difference between the element breakdown voltage and the surge voltage exceeds the threshold value, that is, when the surge voltage has a margin, the gate voltage is set higher than the normal value (S606). If the difference between the element withstand voltage and the surge voltage is equal to or less than the threshold value, that is, if the surge voltage has no margin, the gate voltage is set to a normal value (S607).
- the switching loss and the steady loss can be reduced, and at a low temperature, the steady loss can be intentionally increased to quickly raise the temperature. Efficient driving is possible, and as a result, fuel efficiency can be improved when mounted on a hybrid vehicle or the like.
- the gate voltage is lowered based on the IGBT temperature or the cooling water temperature. Instead, it is determined whether or not the surge voltage has a margin. It may be determined whether to increase the gate voltage based on this, and if there is no margin, it may be further determined whether to lower the gate voltage based on the IGBT temperature or the cooling water temperature.
- the gate voltage is set higher than the normal value Vg0 to Vg1, and then set to Vg2 lower than Vg1 when the IGBT temperature or the cooling water temperature is low. Further, the gate voltage is set to the normal value Vg0 on the assumption that the surge voltage has no margin, and then set to Vg3 lower than Vg0 when the IGBT temperature or the cooling water temperature is low.
- the first gate voltage is set based on whether or not there is a surplus in the surge voltage, and then the first gate voltage is adjusted to the second gate voltage based on the magnitude of the load current, and further the IGBT temperature or cooling water temperature.
- the second gate voltage may be adjusted based on the third gate voltage.
- the first gate voltage is first set to the normal value Vg0 when the surge voltage has no margin, and then the first gate voltage Vg0 is adjusted to set Vg4 lower than Vg0 when the load current is small. For example, when the IGBT temperature or the cooling water temperature is low, Vg5 higher than the second gate voltage Vg4 is set as the third gate voltage.
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Abstract
Description
図1に、本実施形態におけるインバータ制御回路の構成を示す。インバータ制御回路は、各種センサ、各種センサからのデータに基づきゲート電圧を算出するゲート電圧算出部20、ゲート電圧算出部20からの指令に基づきインバータのIGBTのゲート電圧を制御するゲート電圧制御部22を有する。
通常、インバータを構成する各相の上下アームのIGBTの電流は、片側にしか流れない。図6に、インバータを構成する各相の上下アームと電流の流れの一例を示す。図において、上側のアームのIGBT1には電流が流れるが、下側のアームのIGBT2には電流が流れない。このため、電流が流れていないIGBT2の駆動回路22cは無駄な仕事をしていることになる。IGBT3の駆動回路22cについても同様である。
第1実施形態では、サージ電圧に余裕がある場合にはゲート電圧を通常よりも高く設定して定常損失を低減でき、IGBT温度あるいは冷却水の温度が低い場合には素子耐圧が低下してこれに応じてゲートも低く設定されるが、定常損失の低減のために相対的にゲート電圧が高い状態が維持され、素子耐圧が低い状態が結果として長時間維持されてしまう。
図13に、第1~第3実施形態の処理を組み合わせた処理フローチャートを示す。ゲート電圧算出部20は、IGBT温度あるいは冷却水温度が所定のしきい温度より低いか否かを判定する(S601)。そして、IGBT温度あるいは冷却水温度がしきい温度よりも低い場合には、ゲート電圧を通常値よりも低く設定して定常損失により生じる熱で昇温する(S602)。
Claims (6)
- 半導体スイッチング素子を有するインバータを駆動する駆動装置であって、
前記半導体スイッチング素子の少なくとも温度、電流、直流側電圧とに基づいてサージ電圧を算出する演算手段と、
前記半導体スイッチング素子のゲートにゲート電圧を印加するゲート電圧印加手段であって、算出された前記サージ電圧と前記半導体スイッチング素子の素子耐圧との比較結果に基づいて前記ゲート電圧を増減制御するゲート電圧印加手段と、
を有することを特徴とするインバータの駆動装置。 - 請求項1記載の装置において、
前記ゲート電圧印加手段は、前記サージ電圧が前記素子耐圧より小さく、かつ、その差分が所定のしきい電圧を超える場合に前記ゲート電圧を所定の基準値よりも高く制御し、前記サージ電圧が前記素子耐圧より小さく、かつ、その差分が所定のしきい値以下である場合に前記ゲート電圧を前記基準値とすることを特徴とするインバータの駆動装置。 - 請求項1記載の装置において、
前記ゲート電圧印加手段は、前記スイッチング素子に流れる電流が所定のしきい電流以下である場合に前記ゲート電圧を前記基準値よりも低く設定することを特徴とするインバータの駆動装置。 - 請求項1記載の装置において、
前記ゲート電圧印加手段は、前記スイッチング素子の温度が所定のしきい温度以下である場合に前記ゲート電圧を前記基準値よりも低くあるいは前記増減制御後のゲート電圧よりもさらに低く設定することを特徴とするインバータの駆動装置。 - 請求項1記載の装置において、
前記ゲート電圧印加手段は、
前記半導体スイッチング素子毎に設けられた絶縁電源と、
前記絶縁電源からの電圧を前記サージ電圧と前記半導体スイッチング素子の素子耐圧とに基づいて増減する電圧変換手段と、
前記電圧変換手段と前記半導体スイッチング素子との間に設けられ、前記電圧変換手段から出力された電圧を所定のスイッチング指令に応じて開閉することで前記半導体スイッチング素子の前記ゲートに印加するスイッチ手段と、
を有することを特徴とするインバータの駆動装置。 - 半導体スイッチング素子を有するインバータを駆動する駆動装置であって、
前記半導体スイッチング素子の予測されるサージ電圧と素子耐圧に基づいて、前記半導体スイッチング素子のゲート電圧を可変制御する制御手段
を有することを特徴とするインバータの駆動装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09723238.3A EP2256917B1 (en) | 2008-03-18 | 2009-02-23 | Device for driving an inverter |
US12/921,956 US8477518B2 (en) | 2008-03-18 | 2009-02-23 | Device for driving inverter |
CN2009801097270A CN101978587B (zh) | 2008-03-18 | 2009-02-23 | 逆变器的驱动装置 |
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JP2008-070056 | 2008-03-18 | ||
JP2008070056A JP4333802B1 (ja) | 2008-03-18 | 2008-03-18 | インバータの駆動装置 |
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WO2009116360A1 true WO2009116360A1 (ja) | 2009-09-24 |
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PCT/JP2009/053226 WO2009116360A1 (ja) | 2008-03-18 | 2009-02-23 | インバータの駆動装置 |
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US (1) | US8477518B2 (ja) |
EP (1) | EP2256917B1 (ja) |
JP (1) | JP4333802B1 (ja) |
KR (1) | KR101213585B1 (ja) |
CN (1) | CN101978587B (ja) |
WO (1) | WO2009116360A1 (ja) |
Cited By (1)
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JP2011077462A (ja) * | 2009-10-02 | 2011-04-14 | Hitachi Ltd | 半導体駆動回路、及びそれを用いた半導体装置 |
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JP5454305B2 (ja) * | 2010-03-31 | 2014-03-26 | 株式会社デンソー | 電力変換システムの放電制御装置 |
JP2011253434A (ja) * | 2010-06-03 | 2011-12-15 | Hitachi Ltd | ゲート駆動回路の設計支援装置および設計支援方法 |
JP5633442B2 (ja) * | 2011-03-18 | 2014-12-03 | 三菱電機株式会社 | インバータ制御装置及び冷凍空調装置 |
FR2997246B1 (fr) * | 2012-10-23 | 2016-01-22 | Valeo Sys Controle Moteur Sas | Circuit d'alimentation configure pour fournir deux tensions de sortie |
US9172365B2 (en) | 2013-08-31 | 2015-10-27 | Freescale Semiconductor, Inc. | Method and circuit for controlling turnoff of a semiconductor switching element |
JP5907294B2 (ja) * | 2014-03-27 | 2016-04-26 | ダイキン工業株式会社 | 電力変換装置 |
DE102016206818A1 (de) * | 2016-04-21 | 2017-10-26 | Baumüller Nürnberg GmbH | Schaltungsanordnung und Verfahren zur Erzeugung eines Steuersignals für einen Halbleiterschalter |
US10148206B2 (en) | 2016-06-27 | 2018-12-04 | General Electric Company | Controlling operation of a power converter based on grid conditions |
DE102016217494A1 (de) | 2016-09-14 | 2018-03-15 | Siemens Aktiengesellschaft | Verfahren zum Betreiben eines Stromrichters sowie danach arbeitender Stromrichter |
CN106527531B (zh) * | 2016-12-30 | 2019-01-22 | 西门子(上海)电气传动设备有限公司 | 并联igbt温度控制装置和方法 |
CN111466071B (zh) * | 2017-12-22 | 2023-09-22 | 新电元工业株式会社 | 功率模块 |
CN108075622B (zh) * | 2017-12-26 | 2020-05-15 | 北京金风科创风电设备有限公司 | 功率变换器的门极驱动控制方法、装置、控制器及变流器 |
JP2020061903A (ja) | 2018-10-12 | 2020-04-16 | 株式会社デンソー | ゲート駆動装置 |
JP7196614B2 (ja) * | 2019-01-10 | 2022-12-27 | 株式会社デンソー | ゲート駆動装置 |
JP7251335B2 (ja) * | 2019-06-10 | 2023-04-04 | 富士電機株式会社 | ゲート駆動装置、スイッチング装置、および、ゲート駆動方法 |
CN113328677A (zh) * | 2020-02-13 | 2021-08-31 | 台达电子工业股份有限公司 | 逆变器*** |
DE102022210647A1 (de) | 2022-10-10 | 2024-04-11 | Volkswagen Aktiengesellschaft | Verfahren und Vorrichtung zum Betrieb eines Leistungshalbleiterelements |
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- 2009-02-23 CN CN2009801097270A patent/CN101978587B/zh not_active Expired - Fee Related
- 2009-02-23 EP EP09723238.3A patent/EP2256917B1/en active Active
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- 2009-02-23 US US12/921,956 patent/US8477518B2/en active Active
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Also Published As
Publication number | Publication date |
---|---|
KR101213585B1 (ko) | 2012-12-18 |
CN101978587A (zh) | 2011-02-16 |
EP2256917A1 (en) | 2010-12-01 |
JP4333802B1 (ja) | 2009-09-16 |
US8477518B2 (en) | 2013-07-02 |
CN101978587B (zh) | 2013-06-05 |
KR20100121701A (ko) | 2010-11-18 |
EP2256917A4 (en) | 2017-09-27 |
EP2256917B1 (en) | 2020-04-01 |
US20110007536A1 (en) | 2011-01-13 |
JP2009225631A (ja) | 2009-10-01 |
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