CN207234697U - A kind of wind turbine SS (soft start) control circuit - Google Patents
A kind of wind turbine SS (soft start) control circuit Download PDFInfo
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- CN207234697U CN207234697U CN201720832597.5U CN201720832597U CN207234697U CN 207234697 U CN207234697 U CN 207234697U CN 201720832597 U CN201720832597 U CN 201720832597U CN 207234697 U CN207234697 U CN 207234697U
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- varistor
- wind turbine
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Abstract
The utility model discloses a kind of wind turbine SS (soft start) control circuit, include thermistor, relay, varistor and control relay circuit, the both ends of the varistor are used to access power input, one end of the varistor is connected to one end of thermistor, the other end of the thermistor is as the first power output end, the other end of the varistor is as second source output terminal, the both ends of the thermistor are in parallel with the normal open switch of relay, and the control relay circuit is connected to the control terminal of relay.The utility model realizes the soft start to wind turbine by the cooperation of thermistor, relay and control relay circuit, while fan circuit of thermistor and connection etc. is protected using varistor in circuit, and reduces circuit power consumption；In addition the stability of circuit work is also ensured using diode and the second capacitance.The utility model can be widely applied to electronic circuit field as a kind of wind turbine SS (soft start) control circuit.
Description
Technical field
Electronic circuit field is the utility model is related to, especially a kind of wind turbine SS (soft start) control circuit.
Background technology
The electric power system of DC fan is that 220V alternating currents are carried out rectification, becomes stable dc power supply after filtering, just
Wind turbine can be very good work under normal operating condition, if but the effect of perceptual device can produce in moment is started due to circuit
Transient voltage several times higher than normal voltage raw, conventional art solution are not connect an electricity of either connecting in circuit
Resistance, so following not foot point can be caused：
1. if do not connect, transient voltage easily causes wind turbine to burn out；
2. needing larger resistance to can be only achieved antihypertensive effect if a resistance is connect, resistance belongs to energy consumption in circuit
Device can cause power of fan deficiency etc.；And when startup transient voltage value is high, it would still be possible to cause wind turbine to burn out.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of this utility model is：The impact of one kind protection immediate current, reduce energy consumption
Wind turbine SS (soft start) control circuit.
Technical solution is used by the utility model：A kind of wind turbine SS (soft start) control circuit, include thermistor, after
Electric appliance, varistor and control relay circuit, the both ends of the varistor are used to access power input, the pressure-sensitive electricity
One end of resistance is connected to one end of thermistor, and the other end of the thermistor is described pressure-sensitive as the first power output end
For the other end of resistance as second source output terminal, the both ends of the thermistor are in parallel with the normal open switch of relay, described
Control relay circuit is connected to the control terminal of relay.
Further, the control relay circuit includes first resistor, second resistance, the first capacitance and triode, institute
The one end for stating first resistor is used for incoming control signal, and the other end of the first resistor is respectively connected to the one of second resistance
End, the base stage of one end of the first capacitance and triode, the collector of the triode are connected to the control terminal of relay, and described the
The emitter-base bandgap grading of the other end of two resistance, the other end of the first capacitance and triode is grounded.
Further, the second capacitance is connected between the other end of the varistor and the other end of thermistor.
Further, it is also associated with fuse between one end of the power input and thermistor.
Further, diode has been further included, the control terminal of the relay is connected to the anode of diode, the relay
Power end be connected to the cathode of diode.
Further, it is connected with rectification circuit between the other end of the varistor and the other end of thermistor.
The beneficial effects of the utility model are：Realized by the cooperation of thermistor, relay and control relay circuit
To the soft start of wind turbine, while fan circuit of thermistor and connection etc. is protected using varistor in circuit
Shield, and reduce circuit power consumption；In addition also it is protected by using each several part in diode and the second capacitance on circuit, ensures circuit
The stability of work.
Brief description of the drawings
Fig. 1 is the circuit diagram using the utility model.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
With reference to Fig. 1, a kind of wind turbine SS (soft start) control circuit, includes thermistor PTC1, relay RELAY1, pressure-sensitive electricity
RZ1 and control relay circuit are hindered, the both ends of the varistor RZ1 are used to access power input, zero curve as depicted
One end of end NI and zero line LI, the varistor RZ1 are connected to one end of thermistor PTC1, the thermistor PTC1
The other end as the first power output end, the other end of the varistor RZ1 is as second source output terminal, the temperature-sensitive
The both ends of resistance PTC1 are in parallel with the normal open switch of relay RELAY1, and the control relay circuit is connected to relay
The control terminal of RELAY1.
First, coordinated in circuit by thermistor and relay, relay is off when just powering on, circuit stream
Through thermistor, the high heat that high voltage produces can increase thermistor resistance value, reach antihypertensive effect, and then relay controls
The base stage of triode is set to high level by Current Controller circuit turns on triode, since emitter-base bandgap grading directly connects after triode conducting
Ground, so transistor collector voltage is close to 0, due to the winding terminal both ends of relay it is pure in electrical potential difference so winding is powered,
Winding be powered then relay close, i.e., short-circuit resistance both ends make circuit walk relay this all the way, that is, prevent work normally when temperature-sensitive
Resistance consumes energy；Secondly, varistor is connected between zero curve and firewire as shown in Figure 1, is advised once alternating current is unstable beyond voltage
Lattice (such as 245V), varistor will turn on immediately, absorb unnecessary voltage, protect circuit below, while can also protect
Whole circuit avoids being damaged by instantaneous large-current.
Preferred embodiment is further used as, the control relay circuit includes first resistor R1, second resistance
One end of R2, the first capacitance C1 and triode Q1, the first resistor R1 are used for incoming control signal, the first resistor R1's
The other end is respectively connected to the base stage of one end of second resistance R2, one end of the first capacitance C1 and triode Q1, the triode
The collector of Q1 is connected to the control terminal of relay RELAY1, the other end of the second resistance R2, the first capacitance C1 it is another
The emitter-base bandgap grading of end and triode Q1 are grounded.
One end of the first resistor can access the control output end of microcontroller chip, when the output terminal is high level,
Triode ON, relay work, when the output terminal is low level, triode is not turned on, and relay does not work.
It is further used as preferred embodiment, the other end of the varistor RZ1 is another with thermistor PTC1's
The second capacitance CX1 is connected between end.
Preferred embodiment is further used as, is also connected between one end of power input and the thermistor PTC1
There is fuse FUSE1.
Preferred embodiment is further used as, the control terminal for having further included diode D1, the relay RELAY1 connects
The anode of diode D1 is connected to, the power end of the relay RELAY1 is connected to the cathode of diode D1, and relay winding breaks
Electric current after electricity avoids immediate current from influencing control relay circuit and corresponding microcontroller chip by diode D1.
It is further used as preferred embodiment, the other end of the varistor RZ1 is another with thermistor PTC1's
Rectification circuit is connected between end.
Above is the preferable of the utility model is implemented to be illustrated, but the utility model is created and is not limited to institute
State embodiment, those skilled in the art can also make a variety of etc. on the premise of without prejudice to the utility model spirit
With conversion or replace, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (6)
- A kind of 1. wind turbine SS (soft start) control circuit, it is characterised in that：Include thermistor, relay, varistor and relay Device control circuit, the both ends of the varistor are used to access power input, and one end of the varistor is connected to temperature-sensitive One end of resistance, the other end of the thermistor is as the first power output end, and the other end of the varistor is as Two power output ends, the both ends of the thermistor are in parallel with the normal open switch of relay, the control relay circuit connection To the control terminal of relay.
- A kind of 2. wind turbine SS (soft start) control circuit according to claim 1, it is characterised in that：The control relay circuit Including first resistor, second resistance, the first capacitance and triode, one end of the first resistor is used for incoming control signal, The other end of the first resistor is respectively connected to the base stage of one end of second resistance, one end of the first capacitance and triode, institute The collector for stating triode is connected to the control terminal of relay, the other end of the second resistance, the first capacitance the other end and The emitter-base bandgap grading of triode is grounded.
- A kind of 3. wind turbine SS (soft start) control circuit according to claim 1, it is characterised in that：The varistor it is another The second capacitance is connected between end and the other end of thermistor.
- A kind of 4. wind turbine SS (soft start) control circuit according to claim 1, it is characterised in that：The power input and heat Fuse is also associated between one end of quick resistance.
- A kind of 5. wind turbine SS (soft start) control circuit according to claim 1, it is characterised in that：Diode is further included, institute The control terminal for stating relay is connected to the anode of diode, and the power end of the relay is connected to the cathode of diode.
- A kind of 6. wind turbine SS (soft start) control circuit according to claim 1, it is characterised in that：The varistor it is another Rectification circuit is connected between end and the other end of thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720832597.5U CN207234697U (en) | 2017-07-10 | 2017-07-10 | A kind of wind turbine SS (soft start) control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720832597.5U CN207234697U (en) | 2017-07-10 | 2017-07-10 | A kind of wind turbine SS (soft start) control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207234697U true CN207234697U (en) | 2018-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720832597.5U Active CN207234697U (en) | 2017-07-10 | 2017-07-10 | A kind of wind turbine SS (soft start) control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832608A (en) * | 2018-08-09 | 2018-11-16 | 浙江泰福泵业股份有限公司 | A kind of peak voltage protection circuit |
| CN110854991A (en) * | 2019-11-29 | 2020-02-28 | 苏州浪潮智能科技有限公司 | Power supply control circuit |
-
2017
- 2017-07-10 CN CN201720832597.5U patent/CN207234697U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832608A (en) * | 2018-08-09 | 2018-11-16 | 浙江泰福泵业股份有限公司 | A kind of peak voltage protection circuit |
| CN110854991A (en) * | 2019-11-29 | 2020-02-28 | 苏州浪潮智能科技有限公司 | Power supply control circuit |
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