CN104158434B - Single-phase voltage regulating method for controlling speed regulation based on double pwm powers driving topological structure - Google Patents
Single-phase voltage regulating method for controlling speed regulation based on double pwm powers driving topological structure Download PDFInfo
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Abstract
The present invention discloses a kind of single-phase voltage regulating method for controlling speed regulation based on double pwm powers driving topological structure, it is characterized in that enabling PWM_A_G01(or PWM_B_G01) PWM drive signal pulse width (duty ratio) be fixed value, only adjust and change PWM_B_G01(or PWM_A_G01) the pulse width (duty ratio) of PWM drive signal change from minimum value to maximum value, realize the control method of ultrasound electric machine adjusting revolving speed；The speed adjustable range that the present invention is capable of ultrasound electric machine is wide, rotational speed regulation is linear, low speed control characteristic is good and high-efficient, is better than frequency-adjustable speed-adjustable.
Description
Technical field
The present invention relates to a kind of ultrasonic motor control method, especially a kind of ultrasound electric machine power driving power supply technology, specifically a kind of single-phase voltage regulating method for controlling speed regulation based on double pwm powers driving topological structure.
Background technique
Compared with conventional motors, ultrasound electric machine has the characteristics that the slow-speed of revolution, torque/mass ratio are big, fast response time, cuts off self-lock, nanometer resolution, without electromagnetic interference.
Ultrasound electric machine needs to provide the supersonic frequency of two-way quadrature phase by ultrasound motor drive controller to drive work.Such as: a kind of disclosed output stage of ultrasound electric machine of patent of invention " a kind of double pwm powers drivings topological structure (November 13 2012 applying date; application number 201210451717.9) of ultrasound electric machine ", topological structure is driven using double pwm powers of constant current-supplying PWM_POWER and power coupling two PWM components of PWM_DRIVE, its advantage is that the adjusting of the adjusting of output voltage and output frequency is realized the Orthogonal modification being mutually independent of each other.Ultrasound motor drive controller is PWM_A the and PWM_B component for respectively driving the double pwm power topological structures of two-way, realizes and adjusts control to the amplitude of two-way output signal voltage.The amplitude of output signal is the width (duty ratio) by being adjusted in synchronism the PWM drive signal pulse for changing two-way PWM_A_G01 and PWM_B_G01, referred to as variable voltage control.This method ultrasound electric machine rotational speed regulation is linear, is limited by the minimum drive threshold voltage of ultrasound electric machine, so that speed adjustable range becomes relatively narrow, and less is used.Another aspect ultrasound electric machine frequency-adjustable speed-adjustable is widely adopted because of its speed-regulating range width.But because its rotational speed regulation is non-linear, bigger difficulty is brought to the speed control of ultrasound electric machine.When ultrasound electric machine revolving speed is lower, driving signal frequency is again because causing low-speed characteristic difference and efficiency being lower far from motor resonant frequency point.
Summary of the invention
Technical problem to be solved:
It is small in order to solve speed adjustable range in variable voltage speed method, and in frequency-adjustable speed-adjustable method, the nonlinear problem of rotational speed regulation, the present invention proposes that a kind of speed adjustable range is wide and the single-phase voltage regulating speed regulating method of revolving speed linear regulation.
Technical solution:
In order to achieve the above functions, the present invention provides a kind of single-phase voltage regulating method for controlling speed regulation based on double pwm powers driving topological structure, which comprises the following steps:
Firstly, double pwm power topological structure component PWM_A, the PWM_B of setting two-way；
Secondly, enabling the gate drive signal of the first power tube QA1 in PWM_A component is PWM_A_G01, the second power tube QA2 in PWM_A component receives the control of the PWM drive signal from grid PWM_A_G02；The gate drive signal for enabling the first power tube QB1 in PWM_B component is PWM_B_G01, and the second power tube QB2 in PWM_B component receives the control of the PWM drive signal from grid PWM_B_G02；
Third, enable the pulse width of the PWM drive signal of PWM_A_G01 perhaps duty ratio be the PWM drive signal that fixed value only adjusts change PWM_B_G01 pulse width or duty ratio, change it from minimum value to maximum value；The width of the PWM drive signal pulse width of PWM_A_G01 or the size of duty ratio control the amplitude height of the PWM_A_OUT output signal voltage of double pwm power topological structures；
Either enable the pulse width of the PWM drive signal of PWM_B_G01 perhaps duty ratio be the PWM drive signal that fixed value only adjusts change PWM_A_G01 pulse width or duty ratio, change it from minimum value to maximum value；The width of the pwm signal pulse width of PWM_B_G01 or the size of duty ratio control the amplitude height of the PWM_B_OUT output signal voltage of double pwm power topological structures.
The PWM drive signal frequency of PWM_A_G01 and PWM_B_G01 is identical.
The driving signal PWM_A_G01 and PWM_A_G02 is a pair of complementary gate drive signal；The PWM_B_G01 and PWM_B_G02 is a pair of complementary gate drive signal.
Double pwm power topological structure component PWM_A include power tube QA1, QA2, QA3, QA4, inductor LA1, transformer TA1；Specific connection type are as follows: the drain electrode of the first power tube QA1 in the PWM_A component meets DC power anode VCC, the source electrode of the second power tube QA2 in PWM_A component meets DC power cathode GND, is connected to the centre cap of transformer TA1 after the first power tube QA1 source electrode in PWM_A component and the drain electrode connection of the second power tube QA2 in PWM_A component by inductor LA1；The transformer TA1 another two tap is separately connected the drain electrode of third power tube QA3, the 4th power tube QA4 in PWM_A component, then via third power tube QA3, the 4th power tube QA4 in PWM_A component source electrode to power supply cathode GND.
The structure of double pwm power topological structure component PWM_B is identical as the structure of double pwm power topological structure component PWM_A.
The utility model has the advantages that
The purpose of the present invention is to provide the single-phase voltage regulating method for controlling speed regulation based on double pwm powers driving topological structure, enable PWM_A_G01(or PWM_B_G01) PWM drive signal pulse width or duty ratio be fixed value, only adjust PWM_B_G01(or PWM_A_G01) PWM drive signal pulse width or duty ratio change from minimum value to maximum value, realize that ultrasound electric machine adjusts the control method of revolving speed, referred to as single-phase voltage regulating method for controlling speed regulation.Single-phase voltage regulating method for controlling speed regulation has 1, the speed adjustable range of ultrasound electric machine wide；2, revolving speed linear regulation；3, the advantages that low speed control characteristic is good and high-efficient, is better than frequency-adjustable speed-adjustable；Have the characteristics that the linear regulation of variable voltage control has wider speed adjustable range again simultaneously.
Detailed description of the invention
The double pwm powers of Fig. 1-two-way drive topological structure functional block diagram；
Fig. 2-PWM_A topology diagram；
Fig. 3-PWM_B topology diagram.
Symbol description is as follows in figure:
QA1, QA2, QB1, QB2, QA3, QA4, QB3, QB4 are MOSFET power tube；
PWM_A_G01, PWM_A_G02, PWM_B_G01, PWM_B_G02 are the PWM drive signal of MOSFET power tube grid；
PWM_A_OUT, PWM_B_OUT are the voltage output of output signal；
LA1, LB1 are inductor；
TA1, TB1 are output transformer；
VCC is the anode of DC power supply；
GND is the cathode of DC power supply.
Specific embodiment
To show effect of the invention, present invention will be further explained by specific examples below.It should be understood, however, that these embodiments are only used for that the present invention is explained in greater detail, but should not be understood as limiting the present invention.
The present invention is a kind of single-phase voltage regulating method for controlling speed regulation that topological structure is driven based on double pwm powers, which comprises the following steps:
Firstly, double pwm power topological structure component PWM_A, the PWM_B of setting two-way；
Secondly, enabling the gate drive signal of the first power tube QA1 in PWM_A component is PWM_A_G01, the second power tube QA2 in PWM_A component receives the control of the PWM drive signal from grid PWM_A_G02；The gate drive signal for enabling the first power tube QB1 in PWM_B component is PWM_B_G01, and the second power tube QB2 in PWM_B component receives the control of the PWM drive signal from grid PWM_B_G02；
Third, enable the pulse width of the PWM drive signal of PWM_A_G01 perhaps duty ratio be the PWM drive signal that fixed value only adjusts change PWM_B_G01 pulse width or duty ratio, change it from minimum value to maximum value；The width of the PWM drive signal pulse width of PWM_A_G01 or the size of duty ratio control the amplitude height of the PWM_A_OUT output signal voltage of double pwm power topological structures；
Either enable the pulse width of the PWM drive signal of PWM_B_G01 perhaps duty ratio be the PWM drive signal that fixed value only adjusts change PWM_A_G01 pulse width or duty ratio, change it from minimum value to maximum value；The width of the pwm signal pulse width of PWM_B_G01 or the size of duty ratio control the amplitude height of the PWM_B_OUT output signal voltage of double pwm power topological structures.
The PWM drive signal frequency of PWM_A_G01 and PWM_B_G01 is identical.
The driving signal PWM_A_G01 and PWM_A_G02 is a pair of complementary gate drive signal；The PWM_B_G01 and PWM_B_G02 is a pair of complementary gate drive signal.
Double pwm power topological structure component PWM_A include power tube QA1, QA2, QA3, QA4, inductor LA1, transformer TA1；Specific connection type are as follows: the drain electrode of the first power tube QA1 in the PWM_A component meets DC power anode VCC, the source electrode of the second power tube QA2 in PWM_A component meets DC power cathode GND, is connected to the centre cap of transformer TA1 after the first power tube QA1 source electrode in PWM_A component and the drain electrode connection of the second power tube QA2 in PWM_A component by inductor LA1；The transformer TA1 another two tap is separately connected the drain electrode of third power tube QA3, the 4th power tube QA4 in PWM_A component, then via third power tube QA3, the 4th power tube QA4 in PWM_A component source electrode to power supply cathode GND.
The structure of double pwm power topological structure component PWM_B is identical as the structure of double pwm power topological structure component PWM_A.
Illustrate circuit structure and working principle of the invention with reference to the accompanying drawing.
Two-way single-phase voltage regulating method for controlling speed regulation based on double pwm powers driving topological structure of the invention, the double pwm power topological structure components of two-way such as including PWM_A, PWM_B, as shown in Figure 1.PWM_A power tube QA1, QA2, QA3, QA4 as shown in Figure 2, inductor LA1, transformer TA1 composition；Power tube QB1, QB2, QB3, QB4, inductor LA1, the transformer TB1 composition of PWM_B as shown in Figure 3.
In PWM_A, the drain electrode of the first power tube QA1 in PWM_A component meets DC power anode VDD, and the source electrode of the second power tube QA2 in PWM_A component meets DC power cathode GND.It is connected to the centre cap of transformer TA1 after the first power tube QA1 source electrode and the second power tube QA2 drain electrode connection in PWM_A component by inductor LA1 again, transformer TA1 another two tap passes through the drain electrode of third power tube QA3, the 4th power tube QA4 in PWM_A component respectively, then via third power tube QA3, the 4th power tube QA4 in PWM_A component source electrode to power supply cathode GND.The first power tube QA1 in PWM_A component receives the control of the PWM drive signal from grid PWM_A_G01, and the second power tube QA2 in PWM_A component receives the control of the PWM drive signal from grid PWM_A_G02.PWM_A_G01 and PWM_A_G02 is a pair of complementary gate drive signal.Pass through, controls the width of the pwm signal pulse of PWM_A_G01, that is, control the time for flowing through the electric current of inductor LA1；Third power tube QA3, the 4th power tube QA4 in PWM_A component by complementation conducting allows electric current to flow separately through the respective armature winding of transformer TA1, then by transformer TA1 boosting later via PWM_A_OUT output frequency signal voltage.So the width of the PWM drive signal pulse width of PWM_A_G01 or the size of duty ratio, just determine the amplitude height of the PWM_A_OUT output signal voltage of double pwm power topological structures.
In PWM_B, the drain electrode of the first power tube QB1 in PWM_B component meets DC power anode VDD, and the source electrode of the second power tube QB2 in PWM_B component meets DC power cathode GND.It is connected to the centre cap of transformer TB1 after the first power tube QB1 source electrode and the second power tube QB2 drain electrode connection in PWM_B component by inductor LB1 again, transformer TB1 another two tap passes through the drain electrode of third power tube QB3, the 4th power tube QB4 in PWM_B component respectively, respectively again via third power tube QB3, the 4th power tube QB4 in PWM_B component source electrode to power supply cathode GND.Power tube QB1 receives the control of the PWM drive signal from grid PWM_B_G01, and the second power tube QB2 in PWM_B component receives the control of the PWM drive signal from grid PWM_B_G02.PWM_B_G01 and PWM_B_G02 is a pair of complementary gate drive signal.Pass through, controls the width of the pwm signal pulse of PWM_B_G01, that is, control the time for flowing through the electric current of inductor LB1；Third power tube QB3, the 4th power tube QB4 in PWM_B component by complementation conducting allows electric current to flow separately through the respective armature winding of transformer TB1, then by transformer TB1 boosting later via PWM_B_OUT output frequency signal voltage.So the width of the pwm signal pulse width of PWM_B_G01 or the size of duty ratio, just determine the amplitude height of the PWM_B_OUT output signal voltage of double pwm power topological structures.
Enable PWM_A_G01(or PWM_B_G01) PWM drive signal pulse width or duty ratio be fixed value, only adjust PWM_B_G01(or PWM_A_G01) PWM drive signal pulse width or duty ratio change from minimum value to maximum value, realize that ultrasound electric machine adjusts the control method of revolving speed, referred to as single-phase voltage regulating method for controlling speed regulation.Single-phase voltage regulating method for controlling speed regulation advantage is: wide (suitable with frequency-adjustable speed-adjustable when single-frequency), the rotational speed regulation linear (Nonlinear frequency modulation) of the speed adjustable range of ultrasound electric machine, low speed control characteristic are good and high-efficient (being better than frequency-adjustable speed-adjustable).
The present invention is not limited to above-mentioned specific embodiment, and those of ordinary skill in the art according to the present disclosure, can use other numerous embodiments.Therefore, all based on technical thought of the invention, the design of some simple variations or change is done, the scope of protection of the invention is both fallen within.
Claims (5)
1. a kind of single-phase voltage regulating method for controlling speed regulation based on double pwm powers driving topological structure, which comprises the following steps:
Firstly, double pwm power topological structure component PWM_A, the PWM_B of setting two-way；
Secondly, enabling the gate drive signal of the first power tube QA1 in PWM_A component is PWM_A_G01, the second power tube QA2 in PWM_A component receives the control of the PWM drive signal from grid PWM_A_G02；The gate drive signal for enabling the first power tube QB1 in PWM_B component is PWM_B_G01, and the second power tube QB2 in PWM_B component receives the control of the PWM drive signal from grid PWM_B_G02；
Third, enable the pulse width of the PWM drive signal of PWM_A_G01 perhaps duty ratio be the PWM drive signal that fixed value only adjusts change PWM_B_G01 pulse width or duty ratio, change it from minimum value to maximum value；The width of the PWM drive signal pulse width of PWM_A_G01 or the size of duty ratio control the amplitude height of the PWM_A_OUT output signal voltage of double pwm power topological structures；
Either enable the pulse width of the PWM drive signal of PWM_B_G01 perhaps duty ratio be the PWM drive signal that fixed value only adjusts change PWM_A_G01 pulse width or duty ratio, change it from minimum value to maximum value；The width of the pwm signal pulse width of PWM_B_G01 or the size of duty ratio control the amplitude height of the PWM_B_OUT output signal voltage of double pwm power topological structures.
2. a kind of single-phase voltage regulating method for controlling speed regulation based on double pwm powers driving topological structure according to claim 1, it is characterised in that: the PWM drive signal frequency of PWM_A_G01 and PWM_B_G01 is identical.
3. a kind of single-phase voltage regulating method for controlling speed regulation based on double pwm powers driving topological structure according to claim 1, it is characterised in that: the driving signal PWM_A_G01 and PWM_A_G02 is a pair of complementary gate drive signal；The PWM_B_G01 and PWM_B_G02 is a pair of complementary gate drive signal.
4. a kind of single-phase voltage regulating method for controlling speed regulation based on double pwm powers driving topological structure according to claim 1, it is characterized by: double pwm power topological structure component PWM_A include power tube QA1, QA2, QA3, QA4, inductor LA1, transformer TA1；Specific connection type are as follows: the drain electrode of the first power tube QA1 in the PWM_A component meets DC power anode VCC, the source electrode of the second power tube QA2 in PWM_A component meets DC power cathode GND, is connected to the centre cap of transformer TA1 after the first power tube QA1 source electrode in PWM_A component and the drain electrode connection of the second power tube QA2 in PWM_A component by inductor LA1；The transformer TA1 another two tap is separately connected the drain electrode of third power tube QA3, the 4th power tube QA4 in PWM_A component, then via third power tube QA3, the 4th power tube QA4 in PWM_A component source electrode to power supply cathode GND.
5. a kind of single-phase voltage regulating method for controlling speed regulation based on double pwm powers driving topological structure according to claim 4, it is characterised in that: the structure of double pwm power topological structure component PWM_B is identical as the structure of double pwm power topological structure component PWM_A.
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| CN106787939B (en) * | 2017-03-06 | 2019-06-18 | 北京卫星制造厂 | A kind of high-precision drive control device of piezoelectric ceramic ultrasonic motor |
| CN109039153B (en) * | 2018-09-30 | 2023-10-24 | 南京航空航天大学 | Superimposed pulse speed regulation driving system and driving method |
| CN109873573B (en) * | 2019-03-05 | 2020-10-09 | 上海卫星工程研究所 | Ultrasonic motor driving circuit based on hierarchical control |
| CN110289784B (en) * | 2019-07-09 | 2022-03-08 | 南京航达超控科技有限公司 | Single-phase pulse speed regulation control method based on double-PWM power driving topological structure |
| CN112152505B (en) * | 2020-05-27 | 2021-11-16 | 北京机械设备研究所 | Drive circuit and speed regulation method of ultrasonic motor |
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| JP2011030285A (en) * | 2009-07-21 | 2011-02-10 | Olympus Corp | Ultrasonic motor |
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