WO2013046391A1 - 充電制御装置および充電制御方法 - Google Patents
充電制御装置および充電制御方法 Download PDFInfo
- Publication number
- WO2013046391A1 WO2013046391A1 PCT/JP2011/072356 JP2011072356W WO2013046391A1 WO 2013046391 A1 WO2013046391 A1 WO 2013046391A1 JP 2011072356 W JP2011072356 W JP 2011072356W WO 2013046391 A1 WO2013046391 A1 WO 2013046391A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- secondary side
- primary side
- circuit
- primary
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00036—Charger exchanging data with battery
Definitions
- the present invention relates to a charge control device and a charge control method for charging a storage battery (secondary battery).
- a charging control device for charging a storage battery includes a converter and a rectifier that convert a power supply voltage into a charging voltage of the storage battery, and a control unit that feedback-controls the converter based on a voltage applied to the storage battery and a current flowing through the storage battery. It is configured.
- the primary side and the secondary side are electrically separated and electric power is generated by electromagnetic induction of the coil.
- a wireless charging system has been introduced that is configured to wirelessly transmit a voltage value applied to a storage battery and / or a current value flowing through the storage battery from the secondary side to the primary side.
- the primary-side charging control device can charge the storage battery included in the charged device by supplying power to the charged device on the secondary side wirelessly.
- Patent Document 1 describes an invention in which a current remaining in a battery is accumulated to accumulate a first remaining capacity, a second remaining amount is calculated based on the voltage of the battery, and charging is performed based on these. ing.
- Patent Document 2 describes an invention in which charging is performed by setting the maximum charging power based on the characteristics of the conversion efficiency of charging power.
- an object of the present invention is to provide a charge control device and a charge control method for estimating an interpolated value of a secondary signal (voltage, current) during a sampling interval.
- the present invention is configured as follows. That is, according to claim 1 of the present invention, there is provided a charged device including a secondary side coil and a secondary side circuit connected to the secondary side coil and connected to the power storage unit.
- a charge control device for charging the power storage unit wherein a voltage control circuit that controls an output voltage according to a control signal, an output voltage of the voltage control circuit is applied, and the secondary coil can be electromagnetically induced 1
- a primary circuit having a secondary coil means for sampling a primary signal of the primary circuit; and means for sampling a secondary signal of the secondary circuit;
- the charge control device is characterized in that the secondary side signal is estimated and the control signal is feedback-controlled so that a predetermined signal of the secondary side circuit becomes constant. Other means will be described in the embodiment for carrying out the invention.
- a charge control device and a charge control method for estimating an interpolated value of a secondary signal (voltage, current) during a sampling interval.
- FIG. 1 is a schematic configuration diagram showing a charge control device and a device to be charged in the first embodiment.
- the charging control device 10 includes, on the primary side, a chopper circuit 12 (voltage control circuit), a voltage measurement unit 13, a primary side inverter circuit 20 (primary side circuit), a primary side coil 15, and a control unit. 30, a wireless communication unit 31 (first wireless communication unit), and a PWM (Pulse Width Modulation) unit 32, which are connected to the DC power supply 11.
- the secondary charged device 100 charged by the charging control device 10 includes a secondary coil 60, a secondary rectifier circuit 40 (secondary circuit), a voltage measuring unit 51, and a current measurement.
- Unit 52 and wireless communication unit 54 (second wireless communication unit), and is connected to storage battery 53 (power storage device).
- the positive terminal and the negative terminal of the DC power source 11 are connected to the positive terminal and the negative terminal on the input side of the chopper circuit 12, respectively.
- the positive terminal and negative terminal on the output side of the chopper circuit 12 are connected in parallel to the positive terminal and negative terminal on the input side of the primary inverter circuit 20 and the voltage measuring unit 13, respectively.
- the positive terminal and the negative terminal on the output side of the primary inverter circuit 20 are connected to the primary coil 15.
- the primary side coil 15 and the secondary side coil 60 are separable, and the primary side coil 15 and the secondary side coil 60 are positioned in the vicinity, thereby allowing the primary side coil 15 to be separated. 15 to the secondary coil 60 can be fed wirelessly.
- the secondary coil 60 is connected to the positive terminal and the negative terminal on the input side of the secondary rectifier circuit 40.
- the positive electrode terminal and the negative electrode terminal on the output side of the secondary rectifier circuit 40 are connected in parallel to the circuit in which the current measuring unit 52 and the storage battery 53 are connected in series and the voltage measuring unit 51.
- the output side of the voltage measurement unit 51 and the output side of the current measurement unit 52 of the charged device 100 that is the secondary side are connected to the wireless communication unit 54.
- the signal on the output side of the voltage measuring unit 51 indicates the secondary voltage VDC2 applied to the storage battery 53 to which the voltage measuring unit 51 is connected.
- the signal on the output side of the current measuring unit 52 indicates the secondary current IDC2 that flows through the storage battery 53 to which the current measuring unit 52 is connected.
- the wireless communication unit 54 of the charged device 100 on the secondary side is configured to be able to transmit signals wirelessly to the wireless communication unit 31 of the charging control device 10 on the primary side.
- An output side of the wireless communication unit 31, an output side of the voltage measurement unit 13, and an output side of the primary side inverter circuit 20 are connected to the control unit 30 of the charging control device that is the primary side.
- the signal on the output side of the wireless communication unit 31 includes information on the secondary side voltage VDC2 and / or information on the secondary side current IDC2.
- the signal on the output side of the voltage measuring unit 13 includes information on the primary side voltage VDC1 applied to the voltage measuring unit 13. That is, the signal on the output side of the voltage measuring unit 13 includes information on the voltage on the input side of the primary side inverter circuit 20 connected in parallel with the voltage measuring unit 13.
- the signal on the output side of the primary side inverter circuit 20 includes information on the primary side current IL1 flowing in the primary side coil 15.
- An output signal of the control unit 30 is input to the PWM unit 32.
- the output signal of the PWM unit 32 is input to the chopper circuit 12.
- FIG. 2 is a schematic configuration diagram showing the inverter circuit and the secondary side rectifier circuit in the first embodiment.
- the primary inverter circuit 20 includes an inverter unit 21, a resonance unit 25, and a current measurement unit 26.
- the inverter unit 21 is connected to a positive terminal and a negative terminal on the input side of the primary inverter circuit 20.
- On the output side of the inverter unit 21, one terminal is connected to one terminal of the resonance unit 25 via the current measurement unit 26, and the other terminal is connected to the other terminal of the resonance unit 25.
- Two terminals on the output side of the resonating unit 25 are connected to the primary coil 15, respectively.
- the inverter unit 21 includes a smoothing capacitor 22, a first switching leg, and a second switching leg.
- the first switching leg includes a first upper arm resistor R23H, a first upper arm switching element T23H, a protection diode D23H, a first upper arm controller S23H, a first lower arm resistor R23L, and a first lower arm.
- a switching element T23L, a protection diode D23L, and a first lower arm control unit S23L are provided.
- the second switching leg includes a second upper arm resistor R24H, a second upper arm switching element T24H, a protection diode D24H, a second upper arm controller S24H, a second lower arm resistor R24L, and a second lower arm.
- a switching element T24L, a protection diode D24L, and a second lower arm control unit S24L are provided.
- the positive terminal and the negative terminal on the input side of the inverter unit 21 are connected in parallel to the smoothing capacitor 22, the first switching leg, and the second switching leg.
- the first switching leg is connected in series to the first upper arm resistor R23H, the first upper arm switching element T23H, the first lower arm resistor R23L, and the first lower arm switching element T23L.
- the first upper arm controller S23H is connected to the control terminal of the first upper arm switching element T23H.
- a protective diode D23H is connected in the reverse direction to the first upper arm switching element T23H.
- the first lower arm controller S23L is connected to the control terminal of the first lower arm switching element T23L.
- a protection diode D23L is connected in the reverse direction to the first lower arm switching element T23L.
- the second switching leg is connected in series to the second upper arm resistor R24H, the second upper arm switching element T24H, the second lower arm resistor R24L, and the second lower arm switching element T24L.
- the second upper arm controller S24H is connected to the control terminal of the second upper arm switching element T24H.
- a protection diode D24H is connected in the reverse direction to the second upper arm switching element T24H.
- the second lower arm control unit S24L is connected to the control terminal of the second lower arm switching element T24L.
- a protection diode D24L is connected in the reverse direction to the second lower arm switching element T24L.
- the node to which the first upper arm switching element T23H of the first switching leg and the first lower arm resistor R23L are connected is one output terminal of the inverter unit 21.
- a node to which the second upper arm switching element T24H of the second switching leg and the second lower arm resistor R24L are connected is one output terminal of the inverter unit 21.
- the inverter unit 21 outputs pulses having a predetermined pattern from the first upper arm control unit S23H, the first lower arm control unit S23L, the second upper arm control unit S24H, and the second lower arm control unit S24L.
- a predetermined alternating current can be passed through the resonating unit 25.
- the secondary side includes a secondary side coil 60 and a secondary side rectifier circuit 40.
- the secondary side coil 60 is configured to be separable from the primary side coil 15 and is electromagnetically induced by the primary side coil 15 when disposed in the vicinity of the primary side coil 15. AC current flows.
- the secondary side rectifier circuit 40 includes a resonance unit 41 and a bridge unit 42.
- the bridge unit 42 includes bridge diodes D42H, D42L, D43H, D43L, a smoothing capacitor C44, and a rectifier diode D45.
- the output of the resonance unit 41 is connected to the two input side nodes of the bridge unit 42.
- One input side node is connected to the anode terminal of the bridge diode D42H and the cathode terminal of the bridge diode D42L.
- the other input side node is connected to the anode terminal of the bridge diode D43H and the cathode terminal of the bridge diode D43L.
- the cathode terminal of the bridge diode D42H and the cathode terminal of the bridge diode D43H are connected to the positive terminal of the smoothing capacitor C44, and are further connected to the output side of the secondary side rectifier circuit 40 via the rectifier diode D45 connected in the forward direction. Is connected to the positive terminal.
- the anode terminal of the bridge diode D42L and the anode terminal of the bridge diode D43L are connected to the negative terminal of the smoothing capacitor C44 and are connected to the negative terminal (ground) on the output side of the secondary rectifier circuit 40.
- the secondary-side rectifier circuit 40 is a rectifier circuit that converts an alternating current flowing through the secondary-side coil 60 into direct current by rectifying the bridge portion 42.
- the control unit 30 samples the information on the secondary side voltage VDC2 and / or the information on the secondary side current IDC2 at, for example, 100 mSEC (second period).
- Control unit 30 samples primary side voltage VDC1 and / or primary side current IL1 at 5 mSEC (first period).
- the sampling period of the primary side voltage VDC1 and / or the primary side current IL1 and the control period for outputting the control signal for controlling the chopper circuit 12 are the same 5 mSEC period.
- the secondary side voltage VDC2 is estimated. Further, the secondary side current IDC2, the primary side current IL1 when the secondary side current IDC2 is sampled, and the secondary side current at the timing sampled this time based on the primary side current IL1 sampled this time. Estimate IDC2.
- the control signal output to the PWM unit 32 is feedback-controlled so that the power supplied by the secondary rectifier circuit 40 (the product of the secondary voltage VDC2 and the secondary current IDC2) is constant.
- FIG. 3A and 3B are diagrams showing measurement results of the relationship between the primary side and the secondary side.
- FIG. 3A is a diagram illustrating a measurement result of a relationship between the primary side voltage VDC1 and the secondary side voltage VDC2.
- the horizontal axis represents the primary side voltage VDC1 [V]
- the vertical axis represents the ratio between the secondary side voltage VDC2 and the primary side voltage VDC1.
- the points plotted at the left end indicate the measurement start timing. Thereafter, the primary side voltage VDC1, the secondary side voltage VDC2, and the ratio of the primary side voltage VDC1 measured every about 10 minutes are plotted. The measurement is finished 38 minutes after the start of measurement. At this time, the change in the ratio between the secondary side voltage VDC2 and the primary side voltage VDC1 is 0.07.
- the ratio between the secondary side voltage VDC2 and the primary side voltage VDC1 changes continuously and gently.
- the 100 mSEC sampling interval of the secondary voltage VDC2 is very small with respect to this temporal change.
- the ratio between the secondary side voltage VDC2 and the primary side voltage VDC1 is corrected by a temporal change, and this correction ratio and the value of the primary side voltage VDC1 sampled at a period of 5 mSEC are used during this sampling interval.
- the secondary side voltage VDC2 can be estimated.
- FIG. 3B is a diagram showing a measurement result of the relationship between the primary side current IL1 and the secondary side current IDC2.
- the horizontal axis represents the peak value [Apeak] of the primary side current IL1 in amperes, and the vertical axis represents the ratio between the secondary side current IDC2 and the primary side current IL1.
- the points plotted at the left end indicate the measurement start timing.
- the primary current IL1 measured every about 10 minutes, the ratio of the secondary current IDC2, and the primary current IL1 are plotted.
- the measurement is finished 38 minutes after the start of measurement. At this time, the change in the ratio between the secondary current IDC2 and the primary current IL1 is 0.02.
- the ratio between the secondary side current IDC2 and the primary side current IL1 continuously and gently changes. 100 mSEC of the sampling interval of the secondary side current IDC2 is very small with respect to this temporal change. Thus, the ratio between the secondary side current IDC2 and the primary side current IL1 is corrected by a change over time, and the correction ratio and the value of the secondary side current IDC2 sampled at a period of 5 mSEC are used during this sampling interval. Of the secondary side current IDC2.
- FIGS. 4A and 4B are diagrams illustrating a secondary-side estimation method in the first embodiment.
- FIG. 4A is a diagram illustrating a method for estimating the secondary side voltage in the first embodiment.
- Equation 1 there is a relationship of Equation 1 between the time t, the primary side voltage VDC1, the secondary side voltage VDC2, and the ratio f (t) between the secondary side voltage VDC2 and the primary side voltage VDC1.
- Equation 2 When the function f is Taylor-expanded by t + ⁇ t and linearly approximated, the relationship of Equation 2 is established.
- Equation 3 By substituting Equation 2 into Equation 1, the following Equation 3 is obtained, and an estimated value of the secondary side voltage VDC2 can be obtained.
- f (t) takes the values of the following equations 4-1 and 4-2.
- Equations 4-1 and 4-2 lead to the following Equation 5.
- Tn indicates each time when the secondary side voltage VDC2 is sampled.
- ⁇ t represents a time difference between the control timing t and the time Tn at which the secondary voltage VDC2 was sampled most recently.
- the sampling period of the secondary voltage VDC2 is ⁇ T.
- the function f indicating the relationship between the secondary side voltage VDC2 and the primary side voltage VDC1 when the secondary side voltage VDC2 is sampled, and the process after the most recent sampling of the secondary side voltage VDC2 Based on the time ⁇ t, a function f (t) indicating the ratio of the secondary side voltage VDC2 and the primary side voltage VDC1 at the current time t can be calculated.
- FIG. 4B is a diagram illustrating a method for estimating a secondary side current in the first embodiment.
- primary side current IL1, secondary side current IDC2, and function g (t) indicating the ratio of secondary side current IDC2 and primary side current IL1 at time t.
- the relationship of Expression 7 is established.
- Equation 8 When the function g is Taylor-expanded by t + ⁇ t and linearly approximated, the relationship of Equation 8 is established.
- Equation 9 By substituting Equation 8 into Equation 7, the following Equation 9 is obtained, and an estimated value of the secondary current IDC2 can be obtained.
- g (t) takes the values of the following equations 10-1 and 10-2.
- Tn indicates the time when the secondary current IDC2 is sampled.
- ⁇ t represents a time difference between the control timing t and the time Tn at which the secondary current IDC2 was most recently sampled.
- the sampling period of the secondary current IDC2 is ⁇ T.
- the function g indicating the relationship between the secondary current IDC2 and the primary current IL1 when the secondary current IDC2 is sampled, and the process after the most recent sampling of the secondary current IDC2 Based on the time ⁇ t, a function g (t) indicating the ratio of the secondary current IDC2 and the primary current IL1 at the current time t can be calculated.
- FIG. 5 is a flowchart showing a control process in the first embodiment.
- the control unit 30 of the charging control apparatus 10 measures the secondary side current IDC2 and the secondary side voltage VDC2 via the wireless communication unit 31 and the wireless communication unit 54. Thereafter, the secondary side current IDC2 and the secondary side voltage VDC2 are sampled every 100 mSEC (second period).
- control unit 30 of charge control device 10 measures primary side current IL1 and primary side voltage VDC1. Thereafter, the primary side current IL1 and the primary side voltage VDC1 are sampled every 5 mSEC (first period). In step S ⁇ b> 12, the control unit 30 of the charge control device 10 determines the number of measurements on the secondary side.
- step S13 is performed. If the measurement on the secondary side is the second time, the process of step S14 is performed. If the measurement on the secondary side is the third time or later, the process of step S15 is performed.
- step S13 the control unit 30 of the charging control apparatus 10 sets f (0) and g (0) based on the initial values obtained by simulation, and performs the process of step S16.
- f (0) is an initial value (constant) obtained by simulation or the like of the ratio between the secondary side voltage VDC2 and the primary side voltage VDC1.
- g (0) is an initial value (constant) obtained by simulation or the like for the ratio between the secondary current IDC2 and the primary current IL1.
- step S14 the control unit 30 of the charging control apparatus 10 sets f (T) and g (T) based on the measurement on the secondary side, and performs the process of step S16.
- the calculation method in step S14 is shown in the following formulas 13-1 and 13-2.
- step S15 the control unit 30 of the charge control device 10 sets f (t) and g (t) based on the measurement on the secondary side, and performs the process of step S16.
- the calculation method in step S15 is shown in the following formulas 14-1 and 14-2.
- step S16 the control unit 30 of the charging control apparatus 10 calculates a predicted value of the secondary side voltage VDC2 based on the set function f and the primary side voltage VDC1, and sets the set function g and the primary side current.
- a predicted value of the secondary current IDC2 is calculated based on IL1.
- Formula 15 for obtaining the predicted value of the secondary side voltage VDC2 and the predicted value of the secondary side current IDC2 at the time of transition from Step S13 to Step S16 is shown in Formula 15 below.
- Formula 16 for obtaining the predicted value of the secondary side voltage VDC2 and the predicted value of the secondary side current IDC2 when transitioning from step S14 to step S16 is shown in the following formula 16.
- Formula 17 for obtaining the predicted value of the secondary side voltage VDC2 and the predicted value of the secondary side current IDC2 at the time of transition from Step S15 to Step S16 is shown in Formula 17 below.
- step S17 the control unit 30 of the charging control apparatus 10 determines which control method is used. If the control method is constant current control, the control unit 30 of the charging control apparatus 10 performs the process of step S18. If the control method is constant voltage control, the control unit 30 performs the process of step S19. Is constant power control, the process of step S20 is performed.
- step S18 the control unit 30 of the charging control device 10 calculates a command value to the chopper circuit 12 so as to cancel the difference between the predicted value and the target value based on the predicted value of the secondary current IDC2.
- the control unit 30 of the charging control apparatus 10 performs the process of step S22.
- step S19 the control unit 30 of the charge control device 10 calculates a command value to the chopper circuit 12 so as to cancel the difference between the predicted value and the target value based on the predicted value of the secondary side voltage VDC2.
- step S22 the control unit 30 of the charging control apparatus 10 multiplies the predicted value of the secondary side voltage VDC2 and the predicted value of the secondary side current IDC2 to calculate a predicted power value.
- step S21 the control unit 30 of the charge control device 10 calculates a command value to the chopper circuit 12 so as to cancel the difference between the predicted value and the target value.
- step S22 the control unit 30 of the charging control apparatus 10 outputs a command value to the chopper circuit 12 to the PWM unit 32, and controls the PWM duty of the chopper circuit 12.
- step S23 the control unit 30 of the charging control apparatus 10 determines an elapsed time after measuring the primary side in step S11 and an elapsed time after measuring the secondary side in step S10. If 100 mSEC has elapsed after the measurement on the secondary side, the control unit 30 of the charging control apparatus 10 returns to the process of step S10, and if 5 mSEC has elapsed after the measurement on the primary side, the step The process returns to S11. Thereafter, the control unit 30 of the charging control apparatus 10 repeats the above-described processing until the power is turned off.
- FIG. 8 is a schematic configuration diagram showing a charge control device and a device to be charged in a comparative example.
- the charge control device 10A of the comparative example does not have the voltage measurement unit 13 and the primary inverter circuit 20A does not have the current measurement unit 26. Others have the same configuration as the charge control device 10 of the first embodiment.
- FIG. 9 is a flowchart showing a control process in the comparative example.
- the process in step S10 when the process is started is the same as the process in step S10 of the first embodiment.
- the charging control apparatus 10A performs the process of step S17 without performing the processes of steps S11 to S16 of the first embodiment.
- the processing of steps S17 to S23 is the same as the processing of steps S17 to S23 of the first embodiment.
- FIGS. 10 (a-1) to (a-3) and (b-1) to (b-3) are diagrams showing simulation results of the comparative example and the first embodiment.
- FIGS. 10A-1 to 10A-3 show the simulation results of the comparative example.
- FIGS. 10B-1 to 10B-3 show the simulation results of the first embodiment.
- the horizontal axis indicates time t.
- the vertical axis of FIG. 10 (a-1) shows the charging voltage in the comparative example.
- the vertical axis in FIG. 10A-2 shows the charging current in the comparative example.
- the vertical axis in FIG. 10 (a-3) indicates the charging power in the comparative example.
- the vertical axis in FIG. 10 (b-1) indicates the charging voltage in the first embodiment.
- the vertical axis in FIG. 10B-2 shows the charging current in the first embodiment.
- the vertical axis of FIG. 10 (b-3) indicates the charging power in the first embodiment.
- constant current control, constant power control, and constant voltage control are sequentially performed over a predetermined period.
- the constant current control and the constant power control in the comparative example vibrate without converging to a predetermined value.
- the constant current control and the constant power control in the first embodiment converge to a predetermined value.
- the charging control device 10 updates the relationship between the primary side and the secondary side for every sampling on the secondary side. Thereby, the charging control apparatus 10 can cope with a change in the relationship between the primary side and the secondary side due to a change in the environment, for example, deterioration of the element, displacement of the coil during wireless charging, and the like.
- the configuration of the charge control device 10 and the charged device 100 of the second embodiment has the same configuration as the charge control device 10 and the charged device 100 (FIG. 1) of the first embodiment.
- the characteristics of the charge control device 10 of the second embodiment are based on the inclination of the function f in time t in the initial state and the time t of function g in addition to the characteristics of the charge control device 10 of the first embodiment.
- the gradient is stored, and the current predicted value and the voltage predicted value taking the gradient into account are calculated from the first-time measurement on the secondary side.
- FIG. 6 is a flowchart showing a control process in the second embodiment. The same elements as those in the flowchart showing the control processing in the first embodiment shown in FIG. After starting the processing, the processing in steps S10 to S12 is the same as the processing in steps S10 to S12 of the first embodiment.
- step S13A the control unit 30 of the charging control apparatus 10 sets f (t) according to the following equation 18-1 based on the preset inclination and initial value, and g ( t) is set, and the process of step S16 is performed.
- ⁇ t t.
- step S14A the control unit 30 of the charging control apparatus 10 sets f (t) according to the following equation 19-1 based on the preset inclination and the secondary measurement, and the following equation 19-2: G (t) is set according to step S16, and the process of step S16 is performed.
- ⁇ t T ⁇ t.
- steps S16 to S23 is the same as the processing of steps S16 to S23 of the first embodiment.
- the control part 30 of the charge control apparatus 10 can calculate the precise current prediction value / voltage prediction value reflecting the secondary side inclination with the time t immediately after the first measurement on the secondary side. .
- the control unit 30 of the charge control device 10 can calculate a precise current prediction value / voltage prediction value reflecting the secondary side inclination with time t immediately after the first measurement on the secondary side. .
- the configuration of the charging control device 10 and the charged device 100 of the third embodiment has the same configuration as the charging control device 10 and the charged device 100 (FIG. 1) of the first embodiment.
- the characteristic of the charge control device 10 of the third embodiment is that the ratio of the primary side and secondary side signals is calculated from the signal (current or voltage) measurement between the primary side and the secondary side, and the ratio is calculated.
- the signal prediction value (current prediction value or / and voltage prediction value) is calculated based on the above. This corresponds to the 0th-order approximation of Taylor expansion. If the temporal change in the ratio between the primary side and the secondary side is extremely small, or if the sampling period and the control period of the primary side signal are extremely fast, even if it is a zero-order approximation of Taylor expansion, Can be controlled.
- FIG. 7 is a flowchart showing a control process in the third embodiment. The same elements as those in the flowchart showing the control processing in the first embodiment shown in FIG.
- the processing in steps S10 to S11 is the same as the processing in steps S10 to S11 of the first embodiment.
- the control unit 30 of the charging control apparatus 10 determines the number of secondary-side measurements. If the secondary side measurement is the first time, the control unit 30 of the charging control apparatus 10 performs the process of step S13. If the secondary side measurement is the second time or later, the control unit 30 performs the process of step S14. Do.
- the processes in steps S13 to S23 are the same as the processes in steps S13 to S23 of the first embodiment.
- the control unit 30 of the charge control device 10 performs control based on the ratio of the primary side signal and the secondary side signal sampled simultaneously. Thereby, the control part 30 of the charge control apparatus 10 can reduce the amount of calculations, can feed back at high speed, and can be converged stably to a target value.
- the control unit 30 of the charge control device 10 of the first embodiment estimates the secondary side signal by the first order approximation of Taylor expansion.
- the control unit 30 of the charging control apparatus 10 of the third embodiment estimates the secondary side signal by the 0th order approximation of Taylor expansion.
- the present invention is not limited to this, and the control unit 30 of the charging control apparatus 10 may estimate the secondary side signal by approximation of the second or higher order of Taylor expansion. Thereby, the charging control apparatus 10 can perform a more precise approximation.
- the charged device 100 of the first to third embodiments transmits a secondary signal to the charging control device 10 via a wireless path.
- the charging device 100 is not limited to this, and the charged device 100 can supply the secondary voltage VDC2 to the charging control device 10 by means of wirelessly transmitting information, for example, infrared rays, visible light, ultraviolet rays, audible sounds, ultrasonic waves, magnetic fields, or the like. Or / and the secondary current IDC2 may be transmitted.
- the secondary-side signal is transmitted from the charged device 100 to the charging control device 10 wirelessly.
- the present invention is not limited to this, and the present invention may be applied to a system in which a large delay occurs in signal transmission from the secondary side to the primary side.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
特許文献2には、充電電力の変換効率の特性に基いて、最大充電電力を設定して充電を行う発明が記載されている。
そこで、本発明は、サンプリング間隔中の2次側信号(電圧、電流)の補間値を推定する充電制御装置および充電制御方法を提供することを課題とする。
すなわち、本発明の請求項1では、2次側コイルと、前記2次側コイルが接続されていると共に、蓄電部に接続可能に構成されている2次側回路とを備えた被充電装置の前記蓄電部を充電する充電制御装置であって、制御信号によって出力電圧を制御する電圧制御回路と、前記電圧制御回路の出力電圧が印加されると共に、前記2次側コイルを電磁誘導可能な1次側コイルを備えている1次側回路と、前記1次側回路の1次側信号をサンプリングする手段と、前記2次側回路の2次側信号とをサンプリングする手段とを備えると共に、前記電圧制御回路に接続されて前記制御信号を出力する制御部と、を備えており、前記制御部は、前記2次側信号を第2の周期でサンプリングし、前記1次側信号を、前記第2の周期よりも短い第1の周期でサンプリングし、前記2次側信号、前記2次側信号をサンプリングしたときの前記1次側信号、および、今回サンプリングした前記1次側信号に基いて、今回サンプリングした前記1次側信号のタイミングに於ける前記2次側信号を推定して、前記2次側回路の所定の信号が一定になるように前記制御信号をフィードバック制御する、ことを特徴とする充電制御装置とした。
その他の手段については、発明を実施するための形態のなかで説明する。
図1は、第1の実施形態に於ける充電制御装置と被充電装置を示す概略の構成図である。
充電制御装置10は、1次側に、チョッパ回路12(電圧制御回路)と、電圧測定部13と、1次側インバータ回路20(1次側回路)と、1次側コイル15と、制御部30と、無線通信部31(第1のワイヤレス通信部)と、PWM(Pulse Width Modulation)部32とを有し、直流電源11に接続されている。更に、この充電制御装置10によって充電される2次側の被充電装置100は、2次側コイル60と、2次側整流回路40(2次側回路)と、電圧測定部51と、電流測定部52と、無線通信部54(第2のワイヤレス通信部)とを有し、蓄電池53(蓄電装置)に接続されている。
制御部30の出力信号は、PWM部32に入力されている。PWM部32の出力信号はチョッパ回路12に入力されている。
1次側インバータ回路20は、インバータ部21と、共振部25と、電流測定部26とを有している。
インバータ部21は、この1次側インバータ回路20の入力側の正極端子と負極端子とが接続されている。インバータ部21の出力側は、一方の端子が電流測定部26を介して共振部25の一方の端子に接続されていると共に、他方の端子が共振部25の他方の端子に接続されている。この共振部25の出力側の2つの端子は、それぞれ1次側コイル15に接続されている。
共振部41の出力は、ブリッジ部42の2つの入力側ノードに接続されている。一方の入力側ノードには、ブリッジダイオードD42Hのアノード端子と、ブリッジダイオードD42Lのカソード端子とが接続されている。他方の入力側ノードには、ブリッジダイオードD43Hのアノード端子と、ブリッジダイオードD43Lのカソード端子とが接続されている。
ブリッジダイオードD42Hのカソード端子とブリッジダイオードD43Hのカソード端子とは、平滑コンデンサC44の正極端子に接続され、更に順方向に接続された整流ダイオードD45を介して、この2次側整流回路40の出力側の正極端子に接続されている。
ブリッジダイオードD42Lのアノード端子と、ブリッジダイオードD43Lのアノード端子とは、平滑コンデンサC44の負極端子に接続されて、この2次側整流回路40の出力側の負極端子(グランド)に接続されている。
この2次側整流回路40は、2次側コイル60を介して流れる交流電流をブリッジ部42で整流することにより、直流に変換する整流回路である。
図1を基に、充電制御装置10の動作を説明する。
制御部30は、2次側電圧VDC2の情報または/および2次側電流IDC2の情報を、例えば100mSEC(第2の周期)でサンプリングする。制御部30は、1次側電圧VDC1または/および1次側電流IL1を、5mSEC(第1の周期)でサンプリングする。本実施形態に於いて、1次側電圧VDC1または/および1次側電流IL1のサンプリング周期と、チョッパ回路12を制御する制御信号を出力する制御周期とは、同一の5mSEC周期である。
図3(a)は、1次側電圧VDC1と2次側電圧VDC2との関係の測定結果を示す図である。横軸には1次側電圧VDC1[V]が示され、縦軸には2次側電圧VDC2と1次側電圧VDC1との比率が示されている。左端にプロットされた点は、測定開始タイミングを示している。以降、約10分ごとに測定した1次側電圧VDC1と、2次側電圧VDC2と1次側電圧VDC1との比率とをプロットしている。測定開始時の38分後に測定を終了している。このとき、2次側電圧VDC2と1次側電圧VDC1との比率の変化は0.07である。2次側電圧VDC2と1次側電圧VDC1との比率は、連続で緩やかに変化している。この時間的な変化に対して、2次側電圧VDC2のサンプリング間隔の100mSECは、非常に小さい。これにより、2次側電圧VDC2と1次側電圧VDC1との比率を時間的な変化によって補正し、この補正した比率と5mSEC周期でサンプリングした1次側電圧VDC1の値とによって、このサンプリング間隔中の2次側電圧VDC2を推定することができる。
図4(a)は、第1の実施形態に於ける2次側電圧の推定方法を示す図である。
この図に於いて、時刻t、1次側電圧VDC1、2次側電圧VDC2、2次側電圧VDC2と1次側電圧VDC1との比率f(t)との間には、式1の関係が成立する。
この図に於いて、時刻t、1次側電流IL1、2次側電流IDC2、時刻tに於ける2次側電流IDC2と1次側電流IL1との比率を示す関数g(t)との間には、式7の関係が成立する。
処理が開始すると、ステップS10に於いて、充電制御装置10の制御部30は、2次側電流IDC2と2次側電圧VDC2とを、無線通信部31および無線通信部54を介して測定する。以降、2次側電流IDC2と2次側電圧VDC2とは、100mSEC毎(第2の周期)でサンプリングされる。
ステップS12に於いて、充電制御装置10の制御部30は、2次側の測定回数を判断する。
ステップS14に於いて、充電制御装置10の制御部30は、2次側の測定に基き、f(T),g(T)を設定し、ステップS16の処理を行う。ステップS14に於ける算出方法を、以下の式13-1,13-2に示す。
ステップS13から当該ステップS16に遷移したときの、2次側電圧VDC2の予測値と、2次側電流IDC2の予測値とを求める数式を、以下の式15に示す。
ステップS20に於いて、充電制御装置10の制御部30は、2次側電圧VDC2の予測値と2次側電流IDC2の予測値とを乗算し、電力予測値を算出する。
ステップS21に於いて、充電制御装置10の制御部30は、この予測値と目標値との差を打ち消すようチョッパ回路12への指令値を算出する。
図8は、比較例に於ける充電制御装置と被充電装置を示す概略の構成図である。
処理を開始したときの、ステップS10に於ける処理は、第1の実施形態のステップS10に於ける処理と同様である。ステップS10の処理が終了したならば、充電制御装置10Aは、第1の実施形態のステップS11~S16の処理を行わずに、ステップS17の処理を行う。
ステップS17~S23の処理は、第1の実施形態のステップS17~S23の処理と同様である。
以上説明した第1の実施形態では、次の(A),(B)のような効果がある。
第2の実施形態の充電制御装置10と被充電装置100の構成は、第1の実施形態の充電制御装置10と被充電装置100(図1)と同様の構成を有している。
第2の実施形態の充電制御装置10の特徴は、第1の実施形態の充電制御装置10の特徴に加えて、初期状態に於ける関数fの時間tによる傾きと、関数gの時間tによる傾きとを記憶しており、2次側の初回の測定から、その傾きを考慮した電流予測値と電圧予測値とを算出していることである。
図6は、第2の実施形態に於ける制御処理を示すフローチャートである。図5に示す第1の実施形態に於ける制御処理を示すフローチャートと同一の要素には、同一の符号を付与している。
処理を開始したのち、ステップS10~S12の処理は、第1の実施形態のステップS10~S12の処理と同様である。
ステップS13Aに於いて、充電制御装置10の制御部30は、予め設定した傾きと初期値に基き、以下の式18-1に従ってf(t)を設定し、以下の式18-2に従ってg(t)を設定し、ステップS16の処理を行う。なお、ステップS13Aに於いて、Δt=tである。
これにより、充電制御装置10の制御部30は、2次側の初回の測定後すぐに、時間tによる2次側の傾きを反映した精密な電流予測値/電圧予測値を算出することができる。
以上説明した第2の実施形態では、次の(C)のような効果がある。
第3の実施形態の充電制御装置10と被充電装置100の構成は、第1の実施形態の充電制御装置10と被充電装置100(図1)と同様の構成を有している。
第3の実施形態の充電制御装置10の特徴は、1次側と2次側との信号(電流または電圧)測定から、1次側と2次側との信号の比率を算出し、その比率に基いて信号予測値(電流予測値または/および電圧予測値)を算出していることである。これはテイラー展開の0次近似に相当する。1次側と2次側との比率の時間変化が極めて少ないか、または、1次側信号のサンプリング周期と制御周期とが極めて早いならば、テイラー展開の0次近似であっても、適切に制御することができる。
図7は、第3の実施形態に於ける制御処理を示すフローチャートである。図5に示す第1の実施形態に於ける制御処理を示すフローチャートと同一の要素には、同一の符号を付与している。
処理を開始したのち、ステップS10~S11の処理は、第1の実施形態のステップS10~S11の処理と同様である。
ステップS12Aに於いて、充電制御装置10の制御部30は、2次側の測定回数を判断する。
充電制御装置10の制御部30は、2次側の測定が初回であったならば、ステップS13の処理を行い、2次側の測定が2回目以降であったならば、ステップS14の処理を行う。
ステップS13~S23の処理は、第1の実施形態のステップS13~S23の処理と同様である。
以上説明した第3の実施形態では、次の(D)のような効果がある。
本発明は、上記実施形態に限定されることなく、本発明の趣旨を逸脱しない範囲で、変更実施が可能である。この利用形態や変形例としては、例えば、次の(a)~(c)のようなものがある。
11 直流電源
12 チョッパ回路 (電圧制御回路)
13 電圧測定部
15 1次側コイル
20,20A 1次側インバータ回路 (1次側回路)
21 インバータ部
25 共振部
26 電流測定部
30 制御部
31 無線通信部 (第1のワイヤレス通信部)
32 PWM部
40 2次側整流回路 (2次側回路)
51 電圧測定部
52 電流測定部
53 蓄電池 (蓄電装置)
54 無線通信部 (第2のワイヤレス通信部)
60 2次側コイル
100 被充電装置
IL1 1次側電流 (1次側信号)
VDC1 1次側電圧 (1次側信号)
IDC2 2次側電流 (2次側信号)
VDC2 2次側電圧 (2次側信号)
Claims (10)
- 2次側コイルと、前記2次側コイルが接続されていると共に、蓄電部に接続可能に構成されている2次側回路とを備えた被充電装置の前記蓄電部を充電する充電制御装置であって、
制御信号によって出力電圧を制御する電圧制御回路と、
前記電圧制御回路の出力電圧が印加されると共に、前記2次側コイルを電磁誘導可能な1次側コイルを備えている1次側回路と、
前記1次側回路の1次側信号をサンプリングする手段と、前記2次側回路の2次側信号とをサンプリングする手段とを備えると共に、前記電圧制御回路に接続されて前記制御信号を出力する制御部と、
を備えており、
前記制御部は、
前記2次側信号を第2の周期でサンプリングし、
前記1次側信号を、前記第2の周期よりも短い第1の周期でサンプリングし、
前記2次側信号、前記2次側信号をサンプリングしたときの前記1次側信号、および、今回サンプリングした前記1次側信号に基いて、今回サンプリングした前記1次側信号のタイミングに於ける前記2次側信号を推定して、前記2次側回路の所定の信号が一定になるように前記制御信号をフィードバック制御する、
ことを特徴とする充電制御装置。 - 前記被充電装置は更に、前記2次側回路に接続されている第2のワイヤレス通信部を備えており、
当該充電制御装置は更に、前記制御部に接続されている第1のワイヤレス通信部を備えており、
前記制御部は、
前記第2のワイヤレス通信部と前記第1のワイヤレス通信部とを介して、前記2次側信号を前記第2の周期でサンプリングする、
ことを特徴とする請求の範囲第1項に記載の充電制御装置。 - 前記制御部は、
前記2次側信号と前記2次側信号をサンプリングしたときの前記1次側信号との比率を求め、
当該比率を、今回サンプリングした前記1次側信号に乗算して、今回サンプリングした前記1次側信号のタイミングに於ける前記2次側信号を推定する、
ことを特徴とする請求の範囲第1項に記載の充電制御装置。 - 前記制御部は、
前記2次側信号と前記2次側信号をサンプリングしたときの前記1次側信号との比率と、前記比率の時間変化量とを求め、
前記比率を、少なくとも、前記2次側信号のサンプリングから今回の前記1次側信号のサンプリングまでの時間差と前記比率の時間変化量とで補正し、
補正した当該比率を、今回サンプリングした前記1次側信号に乗算して、今回サンプリングした前記1次側信号のタイミングに於ける前記2次側信号を推定する、
ことを特徴とする請求の範囲第1項に記載の充電制御装置。 - 前記制御部は、
前記比率の時間変化量を予め設定している、
ことを特徴とする請求の範囲第4項に記載の充電制御装置。 - 前記1次側信号は、前記1次側回路に印加されている電圧であり、
前記2次側信号と前記所定の信号は、前記2次側回路が前記蓄電部に印加する電圧である、
ことを特徴とする請求の範囲第1項ないし請求の範囲第5項のいずれか1項に記載の充電制御装置。 - 前記1次側信号は、前記1次側回路の前記1次側コイルに流れる電流、または、前記1次側コイルに流れる電流に比例する電流であり、
前記2次側信号と前記所定の信号は、前記2次側回路が前記蓄電部に流す電流である、
ことを特徴とする請求の範囲第1項ないし請求の範囲第5項のいずれか1項に記載の充電制御装置。 - 前記1次側信号は、前記1次側回路に印加されている電圧と、前記1次側コイルに流れる電流とであり、
前記2次側信号は、前記2次側回路が前記蓄電部に印加する電圧と、前記蓄電部に流す電流とであり、
前記所定の信号は、前記2次側回路が前記蓄電部に供給する電力である、
ことを特徴とする請求の範囲第1項ないし請求の範囲第5項のいずれか1項に記載の充電制御装置。 - 2次側コイルと、前記2次側コイルが接続されていると共に、蓄電部に接続可能に構成されている2次側回路とを備えた被充電装置の前記蓄電部を充電する充電制御装置が実行する充電制御方法であって、
当該充電制御装置は、
制御信号によって出力電圧を制御する電圧制御回路と、
前記電圧制御回路の出力電圧が印加されると共に、前記2次側コイルを電磁誘導可能な1次側コイルを備えている1次側回路と、
前記1次側回路の1次側信号をサンプリングする手段と、前記2次側回路の2次側信号とをサンプリングする手段とを備えると共に、前記電圧制御回路に接続されて前記制御信号を出力する制御部と、
を備えており、
前記制御部は、
前記2次側信号を第2の周期でサンプリングし、
前記1次側信号を、前記第2の周期よりも短い第1の周期でサンプリングし、
前記2次側信号、前記2次側信号をサンプリングしたときの前記1次側信号、および、今回サンプリングした前記1次側信号に基いて、今回サンプリングした前記1次側信号のタイミングに於ける前記2次側信号を推定して、前記2次側回路の所定の信号が一定になるように前記制御信号をフィードバック制御する、
ことを特徴とする充電制御方法。 - 前記被充電装置は更に、前記2次側回路に接続されている第2の無線通信部を備えており、
前記充電制御装置は更に、前記制御部に接続されている第1の無線通信部を備えており、
前記制御部は、
前記第2の無線通信部と前記第1の無線通信部とを介して、前記2次側信号を前記第2の周期でサンプリングする、
ことを特徴とする請求の範囲第9項に記載の充電制御方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11872978.9A EP2763279A4 (en) | 2011-09-29 | 2011-09-29 | LOAD CONTROL DEVICE AND LOAD CONTROL METHOD |
PCT/JP2011/072356 WO2013046391A1 (ja) | 2011-09-29 | 2011-09-29 | 充電制御装置および充電制御方法 |
JP2013535738A JP5753906B2 (ja) | 2011-09-29 | 2011-09-29 | 充電制御装置および充電制御方法 |
US14/342,018 US20140203774A1 (en) | 2011-09-29 | 2011-09-29 | Charging Control Device and Charging Control Method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/072356 WO2013046391A1 (ja) | 2011-09-29 | 2011-09-29 | 充電制御装置および充電制御方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013046391A1 true WO2013046391A1 (ja) | 2013-04-04 |
Family
ID=47994498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/072356 WO2013046391A1 (ja) | 2011-09-29 | 2011-09-29 | 充電制御装置および充電制御方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20140203774A1 (ja) |
EP (1) | EP2763279A4 (ja) |
JP (1) | JP5753906B2 (ja) |
WO (1) | WO2013046391A1 (ja) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014207795A (ja) * | 2013-04-15 | 2014-10-30 | 日産自動車株式会社 | 非接触給電システム |
US20140347008A1 (en) * | 2013-05-27 | 2014-11-27 | Lg Electronics Inc. | Wireless power transmitter and wireless power transfer method thereof |
WO2015008506A1 (ja) * | 2013-07-19 | 2015-01-22 | 株式会社Ihi | 給電装置及び非接触給電システム |
WO2015045058A1 (ja) * | 2013-09-26 | 2015-04-02 | 日産自動車株式会社 | 非接触給電システム及び送電装置 |
KR20160106707A (ko) | 2014-02-25 | 2016-09-12 | 닛산 지도우샤 가부시키가이샤 | 비접촉 급전 시스템 및 송전 장치 |
KR20160111970A (ko) | 2014-02-25 | 2016-09-27 | 닛산 지도우샤 가부시키가이샤 | 비접촉 급전 시스템 및 송전 장치 |
KR20160113176A (ko) | 2014-02-25 | 2016-09-28 | 닛산 지도우샤 가부시키가이샤 | 비접촉 급전 시스템 및 송전 장치 |
KR20170120566A (ko) * | 2015-01-19 | 2017-10-31 | 바르질라 노르웨이 아에스 | Dc 전압 소스 사이에서의 전력의 무선 전송을 위한 장치 및 방법 |
JP2018078793A (ja) * | 2017-12-06 | 2018-05-17 | トヨタ自動車株式会社 | 車両、受電装置および送電装置 |
JP2018516045A (ja) * | 2015-04-30 | 2018-06-14 | デルファイ・テクノロジーズ・インコーポレーテッド | ワイヤレス制御システムを有するワイヤレスバッテリ充電器 |
CN108206592A (zh) * | 2018-01-19 | 2018-06-26 | 上海电机学院 | 一种用于电子设备的无线充电系统 |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016019159A1 (en) * | 2014-07-30 | 2016-02-04 | University Of Washington | Adaptive and multi-transmitter wireless power for robots |
JP6200167B2 (ja) * | 2013-02-27 | 2017-09-20 | デクセリアルズ株式会社 | 受電装置、受電電力調整方法、受電電力調整プログラム、及び半導体装置 |
US20160226312A1 (en) * | 2013-08-30 | 2016-08-04 | Pioneer Corporation | Wireless power reception system, wireless power transmission system, control method, computer program, and recording medium |
TWI552529B (zh) * | 2015-02-04 | 2016-10-01 | 茂達電子股份有限公司 | 解調電路及使用其的無線充電裝置 |
US10186894B2 (en) | 2015-04-30 | 2019-01-22 | Aptiv Technologies Limited | Wireless battery charger with wireless control system |
US10205337B2 (en) | 2015-04-30 | 2019-02-12 | Aptiv Technologies Limited | Wireless battery charger with wireless control system |
KR102496136B1 (ko) * | 2016-05-16 | 2023-02-06 | 엘지이노텍 주식회사 | 무선 전력 제어 방법 및 장치 |
HK1218222A2 (zh) * | 2016-06-15 | 2017-02-03 | Hak Wah Lau | 新型智能遙控電池系統 |
JP2019004688A (ja) * | 2017-05-08 | 2019-01-10 | デルファイ・テクノロジーズ・インコーポレーテッド | ワイヤレス制御システムを有するワイヤレスバッテリ充電器 |
JP6390808B1 (ja) * | 2017-05-19 | 2018-09-19 | オムロン株式会社 | 非接触給電装置 |
CN110603712B (zh) * | 2017-05-19 | 2023-06-06 | 欧姆龙株式会社 | 非接触供电装置 |
JP7003445B2 (ja) * | 2017-05-19 | 2022-02-04 | オムロン株式会社 | 非接触給電装置 |
JP6399244B1 (ja) * | 2017-06-02 | 2018-10-03 | オムロン株式会社 | 非接触給電装置及び異常停止方法 |
CN109412276B (zh) | 2017-08-15 | 2022-08-12 | 泰达电子股份有限公司 | 适用于无线电能传输装置的控制电路及控制方法 |
US11575281B2 (en) * | 2017-09-26 | 2023-02-07 | Stryker Corporation | System and method for wirelessly charging a medical device battery |
JP6618519B2 (ja) * | 2017-11-22 | 2019-12-11 | 株式会社Subaru | 車両 |
JP6907969B2 (ja) * | 2018-03-06 | 2021-07-21 | オムロン株式会社 | 非接触給電装置 |
WO2020113007A1 (en) | 2018-11-30 | 2020-06-04 | Witricity Corporation | Systems and methods for low power excitation in high power wireless power systems |
KR20220011667A (ko) | 2019-05-24 | 2022-01-28 | 위트리시티 코포레이션 | 무선 전력 수신기용 보호 회로 |
WO2021041574A1 (en) | 2019-08-26 | 2021-03-04 | Witricity Corporation | Control of active rectification in wireless power systems |
US11695270B2 (en) | 2020-01-29 | 2023-07-04 | Witricity Corporation | Systems and methods for auxiliary power dropout protection |
US11631999B2 (en) | 2020-03-06 | 2023-04-18 | Witricity Corporation | Active rectification in wireless power systems |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001275280A (ja) * | 2000-03-27 | 2001-10-05 | Sharp Corp | 非接触による電力及び信号伝達装置 |
JP2006345588A (ja) * | 2005-06-07 | 2006-12-21 | Matsushita Electric Works Ltd | 非接触給電装置及び自律移動装置用給電システム |
JP2007336717A (ja) * | 2006-06-15 | 2007-12-27 | Sharp Corp | 非接触電力伝送システム、送電装置及び受電装置 |
JP2011045195A (ja) * | 2009-08-21 | 2011-03-03 | Saitama Univ | 非接触給電装置及び非接触給電方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5656923A (en) * | 1995-04-10 | 1997-08-12 | The Whitaker Corporation | A DC power supply controller |
DE29816725U1 (de) * | 1998-09-17 | 1999-01-14 | Chao, Wen-Chung, Yungho, Taipeh | Ladungsvorrichtung für mobile Telefone |
EP1751834B1 (en) * | 2004-05-11 | 2009-12-02 | Access Business Group International LLC | Controlling inductive power transfer systems |
KR100853889B1 (ko) * | 2005-07-29 | 2008-08-25 | 엘에스전선 주식회사 | 무 접점 충전 배터리 및 충전기, 이들을 포함하는 배터리충전 세트, 및 충전제어 방법 |
KR20100122934A (ko) * | 2008-02-22 | 2010-11-23 | 액세스 비지니스 그룹 인터내셔날 엘엘씨 | 배터리 유형 탐지가 가능한 유도 전력 공급 시스템 |
US8855554B2 (en) * | 2008-03-05 | 2014-10-07 | Qualcomm Incorporated | Packaging and details of a wireless power device |
CA2718901C (en) * | 2008-03-17 | 2018-10-16 | Powermat Ltd. | Inductive transmission system |
JP4525806B2 (ja) * | 2008-07-15 | 2010-08-18 | セイコーエプソン株式会社 | 受電制御装置、受電装置および電子機器 |
JP4640496B2 (ja) * | 2008-12-02 | 2011-03-02 | カシオ計算機株式会社 | 電力伝送装置 |
JP5459058B2 (ja) * | 2009-11-09 | 2014-04-02 | 株式会社豊田自動織機 | 共鳴型非接触電力伝送装置 |
JP5533337B2 (ja) * | 2010-06-25 | 2014-06-25 | ソニー株式会社 | 非接触充電通信システム |
IT1400748B1 (it) * | 2010-06-30 | 2013-07-02 | St Microelectronics Srl | Apparato per il trasferimento wireless di energia fra due dispositivi e contemporaneo trasferimento di dati. |
US8552595B2 (en) * | 2011-05-31 | 2013-10-08 | General Electric Company | System and method for contactless power transfer in portable image detectors |
US20130026981A1 (en) * | 2011-07-28 | 2013-01-31 | Broadcom Corporation | Dual mode wireless power |
US20130033228A1 (en) * | 2011-08-05 | 2013-02-07 | Evatran Llc | Method and apparatus for inductively transferring ac power between a charging unit and a vehicle |
-
2011
- 2011-09-29 US US14/342,018 patent/US20140203774A1/en not_active Abandoned
- 2011-09-29 WO PCT/JP2011/072356 patent/WO2013046391A1/ja active Application Filing
- 2011-09-29 JP JP2013535738A patent/JP5753906B2/ja active Active
- 2011-09-29 EP EP11872978.9A patent/EP2763279A4/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001275280A (ja) * | 2000-03-27 | 2001-10-05 | Sharp Corp | 非接触による電力及び信号伝達装置 |
JP2006345588A (ja) * | 2005-06-07 | 2006-12-21 | Matsushita Electric Works Ltd | 非接触給電装置及び自律移動装置用給電システム |
JP2007336717A (ja) * | 2006-06-15 | 2007-12-27 | Sharp Corp | 非接触電力伝送システム、送電装置及び受電装置 |
JP2011045195A (ja) * | 2009-08-21 | 2011-03-03 | Saitama Univ | 非接触給電装置及び非接触給電方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2763279A4 * |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014207795A (ja) * | 2013-04-15 | 2014-10-30 | 日産自動車株式会社 | 非接触給電システム |
US9461479B2 (en) | 2013-05-27 | 2016-10-04 | Lg Electronics Inc. | Wireless power transmitter and wireless power transfer method thereof |
US20140347008A1 (en) * | 2013-05-27 | 2014-11-27 | Lg Electronics Inc. | Wireless power transmitter and wireless power transfer method thereof |
EP2808972A1 (en) * | 2013-05-27 | 2014-12-03 | LG Electronics, Inc. | Wireless power transmitter and wireless power transfer method thereof |
CN104184218A (zh) * | 2013-05-27 | 2014-12-03 | Lg电子株式会社 | 无线电力发射器及其无线电力传送方法 |
KR20140139348A (ko) * | 2013-05-27 | 2014-12-05 | 엘지전자 주식회사 | 무선 전력 전송 장치 및 그 방법 |
KR102082415B1 (ko) * | 2013-05-27 | 2020-02-27 | 엘지전자 주식회사 | 무선 전력 전송 장치 및 그 방법 |
JPWO2015008506A1 (ja) * | 2013-07-19 | 2017-03-02 | 株式会社Ihi | 給電装置及び非接触給電システム |
CN105379065A (zh) * | 2013-07-19 | 2016-03-02 | 株式会社Ihi | 供电装置及非接触供电系统 |
WO2015008506A1 (ja) * | 2013-07-19 | 2015-01-22 | 株式会社Ihi | 給電装置及び非接触給電システム |
US10097012B2 (en) | 2013-07-19 | 2018-10-09 | Ihi Corporation | Power supplying device and wireless power-supplying system |
CN105379065B (zh) * | 2013-07-19 | 2018-09-28 | 株式会社 Ihi | 供电装置及非接触供电系统 |
US9776522B2 (en) | 2013-09-26 | 2017-10-03 | Nissan Motor Co., Ltd. | Wireless power supply system and power transmission device |
RU2635349C2 (ru) * | 2013-09-26 | 2017-11-13 | Ниссан Мотор Ко., Лтд. | Беспроводная система подачи электрической мощности и устройство передачи электрической мощности |
WO2015045058A1 (ja) * | 2013-09-26 | 2015-04-02 | 日産自動車株式会社 | 非接触給電システム及び送電装置 |
JPWO2015045058A1 (ja) * | 2013-09-26 | 2017-03-02 | 日産自動車株式会社 | 非接触給電システム及び送電装置 |
EP3051663A4 (en) * | 2013-09-26 | 2016-10-05 | Nissan Motor | WIRELESS LOADING SYSTEM AND POWER TRANSMISSION DEVICE |
CN105594097B (zh) * | 2013-09-26 | 2017-08-22 | 日产自动车株式会社 | 非接触供电系统以及送电装置 |
CN105594097A (zh) * | 2013-09-26 | 2016-05-18 | 日产自动车株式会社 | 非接触供电系统以及送电装置 |
US9796284B2 (en) | 2014-02-25 | 2017-10-24 | Nissan Motor Co., Ltd. | Wireless power supply system and power transmission device |
US9738170B2 (en) | 2014-02-25 | 2017-08-22 | Nissan Motor Co., Ltd. | Wireless power supply system and power transmission device |
US9845019B2 (en) | 2014-02-25 | 2017-12-19 | Nissan Motor Co., Ltd. | Wireless power supply system and power transmission device |
KR20160113176A (ko) | 2014-02-25 | 2016-09-28 | 닛산 지도우샤 가부시키가이샤 | 비접촉 급전 시스템 및 송전 장치 |
KR20160111970A (ko) | 2014-02-25 | 2016-09-27 | 닛산 지도우샤 가부시키가이샤 | 비접촉 급전 시스템 및 송전 장치 |
KR20160106707A (ko) | 2014-02-25 | 2016-09-12 | 닛산 지도우샤 가부시키가이샤 | 비접촉 급전 시스템 및 송전 장치 |
KR20170120566A (ko) * | 2015-01-19 | 2017-10-31 | 바르질라 노르웨이 아에스 | Dc 전압 소스 사이에서의 전력의 무선 전송을 위한 장치 및 방법 |
KR102110846B1 (ko) * | 2015-01-19 | 2020-05-15 | 바르질라 노르웨이 아에스 | Dc 전압 소스 사이에서의 전력의 무선 전송을 위한 장치 및 방법 |
JP2018516045A (ja) * | 2015-04-30 | 2018-06-14 | デルファイ・テクノロジーズ・インコーポレーテッド | ワイヤレス制御システムを有するワイヤレスバッテリ充電器 |
JP2018078793A (ja) * | 2017-12-06 | 2018-05-17 | トヨタ自動車株式会社 | 車両、受電装置および送電装置 |
CN108206592A (zh) * | 2018-01-19 | 2018-06-26 | 上海电机学院 | 一种用于电子设备的无线充电系统 |
Also Published As
Publication number | Publication date |
---|---|
JP5753906B2 (ja) | 2015-07-22 |
EP2763279A4 (en) | 2015-07-01 |
US20140203774A1 (en) | 2014-07-24 |
JPWO2013046391A1 (ja) | 2015-03-26 |
EP2763279A1 (en) | 2014-08-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5753906B2 (ja) | 充電制御装置および充電制御方法 | |
EP3639048B1 (en) | Circuit and method for electrochemical impedance spectroscopy | |
US9793791B2 (en) | Power conversion apparatus and method for starting up the same | |
JP5950635B2 (ja) | 電源装置及び画像形成装置 | |
JP3983681B2 (ja) | 充電装置 | |
KR101567648B1 (ko) | 배터리 충전 시스템 및 장치 | |
JP5861811B1 (ja) | 電力伝送システム | |
JP5850164B2 (ja) | 蓄電装置 | |
JP6206579B2 (ja) | 給電装置及び非接触給電システム | |
JP2019088171A (ja) | 電力変換装置の制御装置 | |
JP5822304B2 (ja) | 充電装置 | |
US20180342942A1 (en) | Control apparatus | |
CN102451945B (zh) | 焊接用电源装置 | |
JP6480602B2 (ja) | 電力変換装置 | |
JP5182204B2 (ja) | Dc−dcコンバータ | |
JP5617748B2 (ja) | 充電装置 | |
JP6171205B2 (ja) | 電源装置、検査装置、及び電源装置の最適化方法 | |
JP2018137841A (ja) | 力率改善回路及び充電装置 | |
CN113676049A (zh) | 直流变换器的控制方法及直流变换器 | |
JP4712081B2 (ja) | 充電回路および充電回路制御方法 | |
JP6707526B2 (ja) | コンバータ及び受電装置 | |
JP2018082582A (ja) | 電流検出装置、及び、電力変換装置 | |
JP6455406B2 (ja) | 電力変換装置 | |
JP5899807B2 (ja) | コンバータ制御装置 | |
JP6943209B2 (ja) | 力率改善装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11872978 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2013535738 Country of ref document: JP Kind code of ref document: A |
|
REEP | Request for entry into the european phase |
Ref document number: 2011872978 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011872978 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14342018 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |