CN202353532U - Analog sampling circuit of metering equipment of wind power variable-pitch motor - Google Patents

Analog sampling circuit of metering equipment of wind power variable-pitch motor Download PDF

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Publication number
CN202353532U
CN202353532U CN2011205344248U CN201120534424U CN202353532U CN 202353532 U CN202353532 U CN 202353532U CN 2011205344248 U CN2011205344248 U CN 2011205344248U CN 201120534424 U CN201120534424 U CN 201120534424U CN 202353532 U CN202353532 U CN 202353532U
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China
Prior art keywords
filtering
circuit
filter circuit
comparator
sampling
Prior art date
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Active
Application number
CN2011205344248U
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Chinese (zh)
Inventor
傅建民
林盈杰
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Reenergy Electric Suzhou Co Ltd
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Reenergy Electric Suzhou Co Ltd
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Priority to CN2011205344248U priority Critical patent/CN202353532U/en
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Publication of CN202353532U publication Critical patent/CN202353532U/en
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Abstract

The utility model provides an analog sampling circuit of a metering equipment of a wind power variable-pitch motor. The analog sampling circuit comprises a comparator, wherein the comparator is used for sampling sine and cosine values output by a rotary transformer and adding the sampled sine and cosine values to filtering circuits, the filtering circuits include a first filtering circuit, a second filtering circuit and a third filtering circuit, wherein the first filtering circuit is used for filtering the sampled sine and cosine values, the second filtering circuit is used for filtering comparison voltage of the comparator, and the third filtering circuit is used for filtering output voltage. The analog sampling circuit has the beneficial effect of effective filtering so that sampled analog signals are more accurate.

Description

The analog sampling circuit of wind electricity change paddle motor measurement mechanism
Technical field
The utility model relates to a kind of analog sampling circuit of wind electricity change paddle motor measurement mechanism.
Background technology
Along with non-renewable energy resources face exhausted awkward situation at world wide, for satisfying suitability for industrialized production with the human lives is required, people are to the concern of solar energy, wind-force, these regenerative resources of waterpower and utilize lifting day by day.Wherein, wind power generation is a kind of relatively ripe energy development technology that developed, as the emphasis of China's new forms of energy development strategy.
The method of measurement of wind power pitch-controlled system medium velocity and position adopts tachogenerator to add absolute value encoder at present mostly, or increment type adds absolute value encoder.To become the oar motor in order detecting better, to need rotating speed of motor is detected, therefore need a kind of analog signal sampling system of motor speed.
The utility model content
To the deficiency of prior art, the utility model provides a kind of analog sampling circuit of accurate wind electricity change paddle motor measurement mechanism.
The technical scheme of the utility model is achieved in that
A kind of analog sampling circuit of wind electricity change paddle motor measurement mechanism comprises a comparator, the sine and cosine value of said comparator sampling resolver output, and add filter circuit, said filter circuit comprises first filter circuit, second filter circuit; The 3rd filter circuit, first filter circuit are to the sine and cosine value filtering of sampling, and second filter circuit is to the comparative voltage filtering of comparator, and the 3rd filter circuit is to the voltage filter of output.
The beneficial effect of the utility model is: effectively filtering makes the analog signal of sampling more accurate.
Description of drawings
Fig. 1 is the sketch map of the analog sampling circuit of the utility model.
Embodiment
Describe with the mode of example embodiment with reference to the accompanying drawings the utility model.
The analog sampling circuit of motor measurement mechanism is concrete like Fig. 1, mainly is the sine and cosine value of sampling resolver output, adopts the high-performance amplifier; And add the filtering link, and select suitable parameters for use, can improve sampling precision; Specifically comprise a comparator, the sine and cosine value of said comparator sampling resolver output, and add filter circuit; Said filter circuit comprises the first filter circuit C1, the second filter circuit C22; The 3rd filter circuit C9, R10, the first filter circuit C1 is to the sine and cosine value filtering of sampling, and the second filter circuit C22 is to the comparative voltage filtering of comparator, the 3rd filter circuit C9, the R10 parallel connection is to the voltage filter of output.
Although be the example purpose; The preferred implementation of the utility model is disclosed; But those of ordinary skill in the art will recognize, under situation about not breaking away from by the scope of the disclosed the utility model of appending claims and spirit, various improvement, increase and replacement are possible.

Claims (1)

1. the analog sampling circuit of a wind electricity change paddle motor measurement mechanism; It is characterized in that: comprise a comparator, the sine and cosine value of said comparator sampling resolver output, and add filter circuit; Said filter circuit comprises first filter circuit, second filter circuit; The 3rd filter circuit, first filter circuit are to the sine and cosine value filtering of sampling, and second filter circuit is to the comparative voltage filtering of comparator, and the 3rd filter circuit is to the voltage filter of output.
CN2011205344248U 2011-12-19 2011-12-19 Analog sampling circuit of metering equipment of wind power variable-pitch motor Active CN202353532U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205344248U CN202353532U (en) 2011-12-19 2011-12-19 Analog sampling circuit of metering equipment of wind power variable-pitch motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205344248U CN202353532U (en) 2011-12-19 2011-12-19 Analog sampling circuit of metering equipment of wind power variable-pitch motor

Publications (1)

Publication Number Publication Date
CN202353532U true CN202353532U (en) 2012-07-25

Family

ID=46542492

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205344248U Active CN202353532U (en) 2011-12-19 2011-12-19 Analog sampling circuit of metering equipment of wind power variable-pitch motor

Country Status (1)

Country Link
CN (1) CN202353532U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103166608A (en) * 2011-12-19 2013-06-19 苏州能健电气有限公司 Analog sampling circuit of wind power variable propeller motor measurement device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103166608A (en) * 2011-12-19 2013-06-19 苏州能健电气有限公司 Analog sampling circuit of wind power variable propeller motor measurement device

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