CN103558456A - Method, system and device for testing magnetic pole code of permanent magnetic synchronous tractor - Google Patents
Method, system and device for testing magnetic pole code of permanent magnetic synchronous tractor Download PDFInfo
- Publication number
- CN103558456A CN103558456A CN201310530249.9A CN201310530249A CN103558456A CN 103558456 A CN103558456 A CN 103558456A CN 201310530249 A CN201310530249 A CN 201310530249A CN 103558456 A CN103558456 A CN 103558456A
- Authority
- CN
- China
- Prior art keywords
- phase
- phase signals
- pulse
- rotary encoder
- traction machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a method, system and device for testing a magnetic pole code of a permanent magnetic synchronous tractor. Polarity detection and zero-cross detection are conducted on counter electromotive force generated by the permanent magnetic synchronous tractor, so that square signals with a phase identical to that of UV wire potential are output to a tractor driving device in real time. The square signals are combined with angle information given by a rotary encoder so that the phase passing through the counter electromotive force can be calculated in real time. The phase of the counter electromotive force of the tractor is recorded when Z-phase signals of the rotary encoder are changed, so that the corresponding relation between a tractor rotor and a rotary encoder code wheel is determined, namely, the magnetic pole code is determined. The magnetic code testing accuracy is adjusted and controlled through the number of pulses output by period change signals in a period, and therefore the method is suitable for different permanent magnetic synchronous tractors. When the magnetic pole code of the permanent magnetic synchronous tractor is high in accuracy, the starting current quota needed by the permanent magnetic synchronous tractor is relatively small, the requirements for mechanical materials and the electrical capacity are relative low, and the cost of the permanent magnetic tractor and the tractor driving device is saved.
Description
Technical field
The present invention relates to electrical control field, particularly relate to a kind of permanent magnetic synchronous traction machine magnetic pole code method of testing, system and device.
Background technology
Magnetic pole code is the data of describing synchronous electric motor rotor and rotary encoder code-disc relative position relation.While being arranged on motor shaft due to rotary encoder, can not accomplish that its coordinate starting point of describing angle overlaps with rotor, it always differs an angle.And in the control of synchronous motor, must know rotor present position, and control system can only obtain rotor angle by rotary encoder through signals, therefore need to learn the relative position relation of rotary encoder and rotor, i.e. above-mentioned angle, namely magnetic pole code.The precision of magnetic pole code is higher, and the electric energy of the required waste of permanent magnetic synchronous traction machine is just fewer, and starting current amount is relative also less, also relative loose for the requirement of mechanical material and electrical capacity.
The magnetic pole method of testing of general permanent magnetic synchronous traction machine mainly contains 2 kinds:
1, by motor being applied to direct current vector, make rotor affected by this mmf and turn to this direct current vector position, thereby find rotor D shaft position, then according to this D shaft position drive motor running, D axle phase place while finding Z phase on, thus obtain magnetic pole code.The method is affected by motor load, and motor load is larger, and direct current vector magnitude is larger, and the time is long easily causes motor magnetic circuit saturated, or causes D axle phase determination inaccurate, and transducer power device capacity need select greatlyr, increases frequency converter cost.
2, by not discharging band-type brake, motor is applied to the rotation D shaft current of constant amplitude, D shaft current phase place while detecting Q shaft voltage set-point maximal value, thereby obtain D axle phase place, then by discharging band-type brake drive motor, turn round equally, D axle phase place while finding Z phase on, thus infer Z phase and D axle relation.The method precision for non salient pole machine is poor, and magnetic pole code noise in mensuration process is larger.
All there is the difficult problem of the complicated debugging of measuring accuracy process on the low side in above-mentioned two kinds of methods.
Summary of the invention
Based on this, be necessary and process complicated debugging difficult problem on the low side for existing magnetic pole code measuring accuracy, provide the simple debugging of a kind of principle convenient and can regulate permanent magnetic synchronous traction machine magnetic pole code method of testing, system and the device of measuring accuracy.
A magnetic pole code method of testing, comprises step:
When band-type brake unclamps, by control phase pick-up unit, export in real time with the square-wave signal of UV line electromotive force same phase to traction machine drive unit;
By controlling the step-by-step counting to the cycle variable signal of rotary encoder output in real time of described traction machine drive unit, obtain the pulse of rotary encoder Z phase signals, determine that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse between described rotary encoder Z phase signals;
Determine the umber of pulse of described cycle variable signal half period;
When heavy side is stressed than car, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, when cage side comparison heavy side is heavy, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, wherein, n is that described cycle variable signal arrives the umber of pulse between described rotary encoder Z phase signals, m is the umber of pulse of described cycle variable signal half period;
Magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.
A magnetic pole code test macro, comprises phase detection device control module, traction machine drive unit control module, rotary encoder control module and CPU (central processing unit);
Described phase detection device control module is used for, and when band-type brake unclamps, the square-wave signal of the output in real time of control phase pick-up unit and UV line electromotive force same phase is to traction machine drive unit;
Described traction machine drive unit control module, for controlling the step-by-step counting to the cycle variable signal of rotary encoder output in real time of described traction machine drive unit, obtain the pulse of rotary encoder Z phase signals, determine that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse between described rotary encoder Z phase signals
Described rotary encoder control module, for controlling rotary encoder output cycle variable signal;
Described CPU (central processing unit), for when stressing than car heavy side, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, when cage side comparison heavy side is heavy, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, wherein, n is that described cycle variable signal is to the umber of pulse between described rotary encoder Z phase signals, m is the umber of pulse of described cycle variable signal half period, the magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.
A magnetic pole code proving installation, comprises phase detection device, traction machine drive unit, rotary encoder and magnetic pole code determining device;
Described phase detection device is for when band-type brake unclamps, output in real time with the square-wave signal of UV line electromotive force same phase to traction machine drive unit,
Described traction machine drive unit is for the step-by-step counting to the cycle variable signal of rotary encoder output in real time, the pulse of Real-time Obtaining rotary encoder Z phase signals, determines that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse of the umber of pulse between described rotary encoder Z phase signals and definite described cycle variable signal half period
Described rotary encoder is used for exporting cycle variable signal;
Described magnetic pole code determining device is for when stressing than car heavy side, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, when cage side comparison heavy side is heavy, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, wherein, n is that described cycle variable signal is to the umber of pulse between described rotary encoder Z phase signals, m is the umber of pulse of described cycle variable signal half period, the magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.
Above-mentioned permanent magnetic synchronous traction machine magnetic pole code method of testing, system and device.When band-type brake unclamps, by real time output of phase detection device with the square-wave signal of UV line electromotive force same phase to traction machine drive unit, described traction machine drive unit is the step-by-step counting to the cycle variable signal of rotary encoder output in real time.By the pulse of described traction machine drive unit Real-time Obtaining rotary encoder Z phase signals, determine that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse between described rotary encoder Z phase signals, further the umber of pulse of definite described cycle variable signal half period.When heavy side is stressed than car, when if Z phase signals occurs in the positive half cycle of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, a UV line voltage-phase while determining described Z phase pulse generation, when if Z phase signals occurs in the negative half period of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, add UV line voltage-phase when 180 degree electrical angle values are determined described Z phase pulse generation, when cage side comparison heavy side is heavy, when if Z phase signals occurs in the positive half cycle of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, with 360 degree, deduct this angle value again, the 2nd UV line voltage-phase while determining described Z phase pulse generation, when if Z phase signals occurs in the negative half period of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, with 180 degree, deduct this angle value again, the 2nd UV line voltage-phase while determining described Z phase pulse generation.According to described UV line voltage-phase and permanent magnetic synchronous traction machine basic theories relation, the magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.Can reach the effect of controlling magnetic pole code measuring accuracy by improving the pulse of the cycle variable signal of rotary encoder output, the number of pulses of the cycle variable signal in one-period is more, corresponding described cycle variable signal also can be more accurate than the ratio of the umber of pulse of the above cycle variable signal half period to the umber of pulse between described rotary encoder Z phase signals, thereby the precision of the permanent magnetic synchronous traction machine magnetic pole code that test obtains also can be higher.Thereby the electric energy that permanent magnetic synchronous traction machine is wasted is just fewer, and starting current amount is relative also less, also relative loose for the requirement of mechanical material and electrical capacity, save the cost of permanent magnetic synchronous traction machine and traction machine drive unit.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of one of them embodiment of permanent magnetic synchronous traction machine magnetic pole code method of testing;
Fig. 2 is the signal schematic representation that the described phase detection device of one of them embodiment of permanent magnetic synchronous traction machine magnetic pole code method of testing is exported;
Fig. 3 is signal schematic representation in the test process of one of them embodiment of permanent magnetic synchronous traction machine magnetic pole code method of testing;
Fig. 4 is the structure connection layout of one of them embodiment of permanent magnetic synchronous traction machine magnetic pole code proving installation.
Embodiment
As shown in Figure 1, a kind of permanent magnetic synchronous traction machine magnetic pole code method of testing, comprises step:
Step S110, when band-type brake unclamps, exports with the square-wave signal of UV line electromotive force same phase to traction machine drive unit in real time by control phase pick-up unit;
Step S120, by controlling the step-by-step counting to the cycle variable signal of rotary encoder output in real time of described traction machine drive unit, obtain the pulse of rotary encoder Z phase signals, determine that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse between described rotary encoder Z phase signals;
Step S130, determines the umber of pulse of described cycle variable signal half period;
Step S140, when stressing than car heavy side, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, when cage side comparison heavy side is heavy, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, wherein, n is that described cycle variable signal arrives the umber of pulse between described rotary encoder Z phase signals, m is the umber of pulse of described cycle variable signal half period;
Step S150, the magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.
In the present embodiment, described phase detection device can be used voltage comparator circuit as phase-detection use, by detecting motor UV top-stitching voltage, and the square-wave signal of output respective phase, the square-wave signal of output can be as shown in Figure 2.System is controlled band-type brake and is unclamped, and because cage side is with generally uneven to heavy side, traction machine rotates along heavy direction, suppose that car is unloaded, and counterweight is heavier, and traction machine freely slips car along car up direction and turns round, and generation back-emf as shown in Figure 3.
Phase detection device is exported with the synchronous square-wave signal of UV line electromotive force to traction machine drive unit in real time.Traction machine drive unit is counted the cycle variable signal of rotary encoder output in real time simultaneously.For the ease of convenient derivation in practice process, variable signal of described cycle is assumed to A phase signals in the present embodiment.
As shown in Figure 3, at a time traction machine drive unit detects the pulse of rotary encoder Z phase signals, in the situation that this Z phase signals occurs in the negative half period of described square-wave signal and for heavy side is stressed than car is ascending for elevator, the one UV line voltage-phase is during known Z phase pulse generation
Described n is that described square-wave signal zero passage described cycle variable signal constantly arrives the umber of pulse between described rotary encoder Z phase signals, and described m is the umber of pulse of described cycle variable signal half period; If n=1000, m=3000, has
From permagnetic synchronous motor basic theories, rotor axis (D axle) phase place is lag behind 210 degree electrical angles, i.e. leading 150 degree electrical angles of UV line voltage-phase during than motor forward (car is up).When system detects the pulse of Z phase, rotor present position is
φ
d=φ
uV+ 150 °=240 °+150 °=390 °, 30 °
Like this, just can learn that rotary encoder code-disc and rotor axis D axle clamp angle are 30 degree electrical angles, in like manner, according to formula
can show that this Z phase signals occurs in the positive half cycle of described square-wave signal and for heavy side is stressed to the UV line voltage-phase while being the situation of ascending for elevator than car.
If cage side comparison heavy side weight, opens a sluice gate rear traction machine along rotating backward, when the negative half period that occurs in described square-wave signal in this Z phase signals is the running of car down direction, establish the back-emf of its generation still as shown in Figure 3.Due to its antiport, the 2nd UV line voltage differs 180 degree electrical angles during just with forward, therefore
Still establish n=1000, m=3000,
So
φ
D=φ
UV+150°=120°+150°=270°
In like manner, according to formula
can show that this Z phase signals occurs in the positive half cycle of described square-wave signal and for heavy side is stressed to the 2nd UV line voltage-phase while being the situation of ascending for elevator than car.
Described rotary encoder code-disc and rotor axis D axle clamp angle are magnetic pole code.
Above-mentioned permanent magnetic synchronous traction machine magnetic pole code method of testing, when band-type brake unclamps, by in real time output of phase detection device with the square-wave signal of UV line electromotive force same phase to traction machine drive unit, described traction machine drive unit is the step-by-step counting to the cycle variable signal of rotary encoder output in real time.By the pulse of described traction machine drive unit Real-time Obtaining rotary encoder Z phase signals, determine that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse between described rotary encoder Z phase signals, further the umber of pulse of definite described cycle variable signal half period.When heavy side is stressed than car, when if Z phase signals occurs in the positive half cycle of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, a UV line voltage-phase while determining described Z phase pulse generation, when if Z phase signals occurs in the negative half period of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, add UV line voltage-phase when 180 degree electrical angle values are determined described Z phase pulse generation, when cage side comparison heavy side is heavy, when if Z phase signals occurs in the positive half cycle of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, with 360 degree, deduct this angle value again, the 2nd UV line voltage-phase while determining described Z phase pulse generation, when if Z phase signals occurs in the negative half period of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, with 180 degree, deduct this angle value again, the 2nd UV line voltage-phase while determining described Z phase pulse generation.According to described UV line voltage-phase and permanent magnetic synchronous traction machine basic theories relation, the magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.Can reach the effect of controlling magnetic pole code measuring accuracy by improving the pulse of the cycle variable signal of rotary encoder output, to adapt to different permanent magnetic synchronous traction machines.The number of pulses of the cycle variable signal in one-period is more, corresponding described cycle variable signal also can be more accurate than the ratio of the umber of pulse of the above cycle variable signal half period to the umber of pulse between described rotary encoder Z phase signals, thereby the precision of the permanent magnetic synchronous traction machine magnetic pole code that test obtains also can be higher.Thereby the electric energy that permanent magnetic synchronous traction machine is wasted is just fewer, and starting current amount is relative also less, also relative loose for the requirement of mechanical material and electrical capacity, save the cost of permanent magnetic synchronous traction machine and traction machine drive unit.
Therein in an embodiment, described permanent magnetic synchronous traction machine magnetic pole code method of testing, described cycle variable signal comprises A phase signals, B phase signals or Z phase signals.Variable signal of described cycle can be any one signal in A phase signals, B phase signals or Z phase signals in the present embodiment, in implementation process specifically, can preferred described cycle variable signal be A phase signals.
A magnetic pole code test macro, comprises phase detection device control module, traction machine drive unit control module, rotary encoder control module and CPU (central processing unit);
Described phase detection device control module is for when band-type brake unclamps, and the square-wave signal of the output in real time of control phase pick-up unit and UV line electromotive force same phase is to traction machine drive unit;
Described traction machine drive unit control module is for controlling the step-by-step counting to the cycle variable signal of rotary encoder output in real time of described traction machine drive unit, obtain the pulse of rotary encoder Z phase signals, determine that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse between described rotary encoder Z phase signals
Described rotary encoder control module is used for controlling rotary encoder output cycle variable signal;
Described CPU (central processing unit) is for when stressing than car heavy side, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, when cage side comparison heavy side is heavy, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, wherein, n is that described cycle variable signal is to the umber of pulse between described rotary encoder Z phase signals, m is the umber of pulse of described cycle variable signal half period, the magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.
Above-mentioned permanent magnetic synchronous traction machine magnetic pole code test macro, when band-type brake unclamps, by in real time output of phase detection device with the square-wave signal of UV line electromotive force same phase to traction machine drive unit, described traction machine drive unit is the step-by-step counting to the cycle variable signal of rotary encoder output in real time.By the pulse of described traction machine drive unit Real-time Obtaining rotary encoder Z phase signals, determine that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse between described rotary encoder Z phase signals, further the umber of pulse of definite described cycle variable signal half period.When heavy side is stressed than car, when if Z phase signals occurs in the positive half cycle of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, a UV line voltage-phase while determining described Z phase pulse generation, when if Z phase signals occurs in the negative half period of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, add UV line voltage-phase when 180 degree electrical angle values are determined described Z phase pulse generation, when cage side comparison heavy side is heavy, when if Z phase signals occurs in the positive half cycle of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, with 360 degree, deduct this angle value again, the 2nd UV line voltage-phase while determining described Z phase pulse generation, when if Z phase signals occurs in the negative half period of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, with 180 degree, deduct this angle value again, the 2nd UV line voltage-phase while determining described Z phase pulse generation.According to described UV line voltage-phase and permanent magnetic synchronous traction machine basic theories relation, the magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.Can reach the effect of controlling magnetic pole code measuring accuracy by improving the pulse of the cycle variable signal of rotary encoder output, to adapt to different permanent magnetic synchronous traction machines.The number of pulses of the cycle variable signal in one-period is more, corresponding described cycle variable signal also can be more accurate than the ratio of the umber of pulse of the above cycle variable signal half period to the umber of pulse between described rotary encoder Z phase signals, thereby the precision of the permanent magnetic synchronous traction machine magnetic pole code that test obtains also can be higher.Thereby the electric energy that permanent magnetic synchronous traction machine is wasted is just fewer, and starting current amount is relative also less, also relative loose for the requirement of mechanical material and electrical capacity, save the cost of permanent magnetic synchronous traction machine and traction machine drive unit.
Therein in an embodiment, described permanent magnetic synchronous traction machine magnetic pole code test macro, described cycle variable signal comprises A phase signals, B phase signals or Z phase signals.
As shown in Figure 4, in an embodiment, a kind of permanent magnetic synchronous traction machine magnetic pole code proving installation, comprises phase detection device 110, traction machine drive unit 120, rotary encoder 130 and magnetic pole code determining device 140 therein;
Described phase detection device 110 is for when band-type brake 160 unclamps, output in real time with the square-wave signal of UV line electromotive force same phase to traction machine drive unit,
Described traction machine drive unit 120 is for the step-by-step counting to the cycle variable signal of rotary encoder output in real time, the pulse of Real-time Obtaining rotary encoder Z phase signals, determines that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse of the umber of pulse between described rotary encoder Z phase signals and definite described cycle variable signal half period
Described rotary encoder 130 is for exporting cycle variable signal;
Described magnetic pole code determining device 140 is for when stressing than car heavy side, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, when cage side comparison heavy side is heavy, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, wherein, n is that described cycle variable signal is to the umber of pulse between described rotary encoder Z phase signals, m is the umber of pulse of described cycle variable signal half period, the magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.
Above-mentioned permanent magnetic synchronous traction machine magnetic pole code proving installation, when band-type brake unclamps, by in real time output of phase detection device with the square-wave signal of UV line electromotive force same phase to traction machine drive unit, described traction machine drive unit is the step-by-step counting to the cycle variable signal of rotary encoder output in real time.By the pulse of described traction machine drive unit Real-time Obtaining rotary encoder Z phase signals, determine that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse between described rotary encoder Z phase signals, further the umber of pulse of definite described cycle variable signal half period.When heavy side is stressed than car, when if Z phase signals occurs in the positive half cycle of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, a UV line voltage-phase while determining described Z phase pulse generation, when if Z phase signals occurs in the negative half period of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, add UV line voltage-phase when 180 degree electrical angle values are determined described Z phase pulse generation, when cage side comparison heavy side is heavy, when if Z phase signals occurs in the positive half cycle of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, with 360 degree, deduct this angle value again, the 2nd UV line voltage-phase while determining described Z phase pulse generation, when if Z phase signals occurs in the negative half period of described square-wave signal, by described cycle variable signal, to the umber of pulse between described rotary encoder Z phase signals, than the ratio of the umber of pulse of the above cycle variable signal half period, be multiplied by again 180 degree electrical angle values, with 180 degree, deduct this angle value again, the 2nd UV line voltage-phase while determining described Z phase pulse generation.According to described UV line voltage-phase and permanent magnetic synchronous traction machine basic theories relation, the magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.Can reach the effect of controlling magnetic pole code measuring accuracy by improving the pulse of the cycle variable signal of rotary encoder output, to adapt to different permanent magnetic synchronous traction machines.The number of pulses of the cycle variable signal in one-period is more, corresponding described cycle variable signal also can be more accurate than the ratio of the umber of pulse of the above cycle variable signal half period to the umber of pulse between described rotary encoder Z phase signals, thereby the precision of the permanent magnetic synchronous traction machine magnetic pole code that test obtains also can be higher.Thereby the electric energy of the required waste of permanent magnetic synchronous traction machine is just fewer, and starting current amount is relative also less, also relative loose for the requirement of mechanical material and electrical capacity, save the cost of permanent magnetic synchronous traction machine and traction machine drive unit.
Therein in an embodiment, described permanent magnetic synchronous traction machine magnetic pole code proving installation, described cycle variable signal comprises A phase signals, B phase signals or Z phase signals.
As shown in Figure 4, in an embodiment, described permanent magnetic synchronous traction machine magnetic pole code proving installation, is also included as power supply 150 devices that described traction machine drive unit 120 provides electric energy therein.In the present embodiment, can also provide power supply 150 devices for described traction machine drive unit 120 provides electric energy, form an independently electric power system.
In an embodiment, described permanent magnetic synchronous traction machine magnetic pole code proving installation, is characterized in that therein, on the integrated and described phase detection device of described magnetic pole code determining device.The form that described magnetic pole code determining device can be made into chip is in the present embodiment integrated on described phase detection device, is convenient to installation personnel and carries and operate installation.
Due to described permanent magnetic synchronous traction machine magnetic pole code test macro and to install other part technical characterictics identical with said method, do not repeat them here.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a permanent magnetic synchronous traction machine magnetic pole code method of testing, is characterized in that, comprises step:
When band-type brake unclamps, by control phase pick-up unit, export in real time with the square-wave signal of UV line electromotive force same phase to traction machine drive unit;
By controlling the step-by-step counting to the cycle variable signal of rotary encoder output in real time of described traction machine drive unit, obtain the pulse of rotary encoder Z phase signals, determine that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse between described rotary encoder Z phase signals;
Determine the umber of pulse of described cycle variable signal half period;
When heavy side is stressed than car, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, when cage side comparison heavy side is heavy, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, wherein, n is that described cycle variable signal arrives the umber of pulse between described rotary encoder Z phase signals, m is the umber of pulse of described cycle variable signal half period;
Magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.
2. permanent magnetic synchronous traction machine magnetic pole code method of testing according to claim 1, is characterized in that, described cycle variable signal comprises A phase signals, B phase signals or Z phase signals.
3. a permanent magnetic synchronous traction machine magnetic pole code test macro, is characterized in that, comprises phase detection device control module, traction machine drive unit control module, rotary encoder control module and CPU (central processing unit);
Described phase detection device control module, for when band-type brake unclamps, the square-wave signal of the output in real time of control phase pick-up unit and UV line electromotive force same phase is to traction machine drive unit;
Described traction machine drive unit control module, for controlling the step-by-step counting to the cycle variable signal of rotary encoder output in real time of described traction machine drive unit, obtain the pulse of rotary encoder Z phase signals, determine that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse between described rotary encoder Z phase signals;
Described rotary encoder control module, for controlling rotary encoder output cycle variable signal;
Described CPU (central processing unit) is used for, when heavy side is stressed than car, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, when cage side comparison heavy side is heavy, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, wherein, n is that described cycle variable signal is to the umber of pulse between described rotary encoder Z phase signals, m is the umber of pulse of described cycle variable signal half period, the magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.
4. permanent magnetic synchronous traction machine magnetic pole code test macro according to claim 3, is characterized in that, described cycle variable signal comprises A phase signals, B phase signals or Z phase signals.
5. a permanent magnetic synchronous traction machine magnetic pole code proving installation, is characterized in that, comprises phase detection device, traction machine drive unit, rotary encoder and magnetic pole code determining device;
Described phase detection device is for when band-type brake unclamps, output in real time with the square-wave signal of UV line electromotive force same phase to traction machine drive unit,
Described traction machine drive unit is for the step-by-step counting to the cycle variable signal of rotary encoder output in real time, the pulse of Real-time Obtaining rotary encoder Z phase signals, determines that described square-wave signal zero passage described cycle variable signal is constantly to the umber of pulse of the umber of pulse between described rotary encoder Z phase signals and definite described cycle variable signal half period.
Described rotary encoder is used for exporting cycle variable signal;
Described magnetic pole code determining device is for when stressing than car heavy side, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
a UV line voltage-phase while determining described Z phase pulse generation, when cage side comparison heavy side is heavy, if when Z phase signals occurs in the positive half cycle of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, if when Z phase signals occurs in the negative half period of described square-wave signal, according to formula
the 2nd UV line voltage-phase while determining described Z phase pulse generation, wherein, n is that described cycle variable signal is to the umber of pulse between described rotary encoder Z phase signals, m is the umber of pulse of described cycle variable signal half period, the magnetic pole code while obtaining Z phase signals pulse generation corresponding to a described UV line voltage-phase or the 2nd UV line voltage-phase.
6. permanent magnetic synchronous traction machine magnetic pole code proving installation according to claim 3, is characterized in that, described cycle variable signal comprises A phase signals, B phase signals or Z phase signals.
7. according to the permanent magnetic synchronous traction machine magnetic pole code proving installation described in claim 3 or 4, it is characterized in that, be also included as the supply unit that described traction machine drive unit provides electric energy.
8. according to the permanent magnetic synchronous traction machine magnetic pole code proving installation described in claim 3 or 4, it is characterized in that, on the integrated and described phase detection device of described magnetic pole code determining device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530249.9A CN103558456B (en) | 2013-10-30 | 2013-10-30 | Permanent magnetic synchronous traction machine magnetic pole code method of testing, system and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530249.9A CN103558456B (en) | 2013-10-30 | 2013-10-30 | Permanent magnetic synchronous traction machine magnetic pole code method of testing, system and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103558456A true CN103558456A (en) | 2014-02-05 |
| CN103558456B CN103558456B (en) | 2016-02-10 |
Family
ID=50012758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310530249.9A Active CN103558456B (en) | 2013-10-30 | 2013-10-30 | Permanent magnetic synchronous traction machine magnetic pole code method of testing, system and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103558456B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329101A (en) * | 2017-07-12 | 2017-11-07 | 日立电梯（中国）有限公司 | The bearing calibration of permanent magnetic synchronous traction machine magnetic pole code and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200721U (en) * | 1985-10-10 | 1987-06-10 | 长城精密电表厂 | Digital phase tester on condition of heavy current |
| US5417118A (en) * | 1993-07-15 | 1995-05-23 | Lew; Hyok S. | Magnetic flowmeter determining flow rate from phase angle difference |
| US5455495A (en) * | 1992-03-24 | 1995-10-03 | Art Tech Gigadisc "Atg" | Control device for servocontrolling an object to a given position |
| CN1645737A (en) * | 2004-12-31 | 2005-07-27 | 浙江大学 | Comprehensive measuring method and circuit for electric motor rotating speed and rotor location |
| CN102009890A (en) * | 2010-12-08 | 2011-04-13 | 日立电梯（中国）有限公司 | Detector for absolute position of elevator lift car |
-
2013
- 2013-10-30 CN CN201310530249.9A patent/CN103558456B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200721U (en) * | 1985-10-10 | 1987-06-10 | 长城精密电表厂 | Digital phase tester on condition of heavy current |
| US5455495A (en) * | 1992-03-24 | 1995-10-03 | Art Tech Gigadisc "Atg" | Control device for servocontrolling an object to a given position |
| US5417118A (en) * | 1993-07-15 | 1995-05-23 | Lew; Hyok S. | Magnetic flowmeter determining flow rate from phase angle difference |
| CN1645737A (en) * | 2004-12-31 | 2005-07-27 | 浙江大学 | Comprehensive measuring method and circuit for electric motor rotating speed and rotor location |
| CN102009890A (en) * | 2010-12-08 | 2011-04-13 | 日立电梯（中国）有限公司 | Detector for absolute position of elevator lift car |
Non-Patent Citations (3)
| Title |
|---|
| 万正付等: "永磁同步电梯曳引机转子初始位置检测", 《微电机》 * |
| 季荣斌等: "一种新型的永磁同步电机磁极位置检测方法", 《兰州工业高等专科学校学报》 * |
| 王高林等: "内置式永磁同步电机转子初始位置估计方法", 《电机与控制学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329101A (en) * | 2017-07-12 | 2017-11-07 | 日立电梯（中国）有限公司 | The bearing calibration of permanent magnetic synchronous traction machine magnetic pole code and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103558456B (en) | 2016-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Pan et al. | Research on motor rotational speed measurement in regenerative braking system of electric vehicle | |
| CN104079215B (en) | The accurate Detection and adjustment method of automobile permanent magnet synchronous motor initial position of rotor | |
| CN103475282B (en) | A kind of control method of the three-phase direct-current brushless motor of applying single Hall element | |
| CN103560725A (en) | Brushless direct-current motor position detection method independent of rotating speed | |
| CN104065319B (en) | The scaling method of permanent magnet synchronous motor zero-bit initial angle | |
| CN103178768A (en) | Device for detecting initial position of rotor of permanent-magnetic synchronous motor and using method thereof | |
| CN101789746B (en) | Method and device for rotor position measurement and speed measurement and control of synchronous motor | |
| CN202872710U (en) | AC brushless permanent-magnet synchronous-motor rotor-position detection device | |
| CN103997262B (en) | Based on the electric bicycle sine wave control method without sensor wheel hub motor | |
| CN105207549B (en) | Brshless DC motor driving control system | |
| CN104949798B (en) | A kind of method of measurement motor rotary inertia | |
| CN101666810A (en) | Method and arrangement for determining rotation speed of a motor | |
| CN101977000A (en) | Method for measuring position and speed of rotor of electrically excited synchronous motor and control device | |
| CN103558456A (en) | Method, system and device for testing magnetic pole code of permanent magnetic synchronous tractor | |
| CN105450105B (en) | A kind of back electromotive force constant detection method and air-conditioning equipment | |
| CN105262402B (en) | Brshless DC motor torque ripple detecting system | |
| CN202798552U (en) | Motor speed detecting device | |
| CN101944875A (en) | Method for measuring position and speed of doubly-fed motor rotor and control device | |
| CN104467338A (en) | Switch reluctance motor of rotor-free position sensor | |
| CN201349192Y (en) | Position measuring and speed measuring and controlling device for rotor of synchronous motor | |
| CN204271870U (en) | A kind of switched reluctance machines of no-rotor position sensor | |
| CN104283469A (en) | Synchronous motor speed regulating system rotor position detection method with adoption of photoelectric pair transistors | |
| CN201789464U (en) | Rotor position and speed measurement control device for electric excitation synchronous motor | |
| CN106342389B (en) | Brshless DC motor sinusoidal drive device | |
| US9175984B2 (en) | Mechanism of interior permanent magnet machine initial position detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |