CN102957158A - Damped oscillation detecting and regulating device - Google Patents
Damped oscillation detecting and regulating device Download PDFInfo
- Publication number
- CN102957158A CN102957158A CN2011102432203A CN201110243220A CN102957158A CN 102957158 A CN102957158 A CN 102957158A CN 2011102432203 A CN2011102432203 A CN 2011102432203A CN 201110243220 A CN201110243220 A CN 201110243220A CN 102957158 A CN102957158 A CN 102957158A
- Authority
- CN
- China
- Prior art keywords
- oscillation
- circuit
- damping
- damped oscillation
- damped
- 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.)
- Pending
Links
Images
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
The invention discloses a damped oscillation detecting and regulating device which is used for thermoelectric units. The damped oscillation detecting and regulating device comprises a damped oscillation sampling module, a damping state analysis module and a damping control module, wherein the damped oscillation sampling module is used for sampling damped oscillation samples from a power grid of the thermoelectric units; the damping state analysis module is connected with the damped oscillation sampling module and is used for analyzing damping states according to the damped oscillation samples and generating damping state analysis signals; and the damping control module is connected with the damping state analysis module and is used for generating damping control signals according to the damping state analysis signals, and the damping control signals are applied to the power grid so as to be used for regulating the damping states. The damped oscillation detecting and regulating device is capable of detecting damped oscillation of the power grid in real time and regulates the damped oscillation according to damping conditions, so that stable operation of the thermoelectric units is guaranteed.
Description
Technical field
The present invention relates to the power grid control technology, relate in particular to a kind of detection and adjusting device of damped oscillation.
Background technology
Oscillation damping in the electrical network is the key factor that affects grid stability, electrical network the electromechanical oscillations damping, be a powerful judging the unit potential hazard that links with it.Adopt the circuit of fixed series compensation to produce negative damping in the certain frequency scope, in case the amplitude of this negative damping has surpassed the mechanical positive damping of generating set, then subsynchronous resonance very likely causes in the axle of unit system because suffering disturbance.
For fear of this destabilizing factor, need to the oscillation damping of electrical network be detected, and in time regulate according to the situation of damping, guarantee the stable operation of unit.
Summary of the invention
The present invention's control technology in the damped oscillation that proposes a kind of thermoelectric unit.
According to the present invention, a kind of detection and adjusting device of damped oscillation proposed, the detection of this damped oscillation and adjusting device are used for thermoelectric unit, comprising: damped oscillation sampling module, damping state analysis module and damping control module.
The damped oscillation sampling module is from connecting the electrical network sampling damped oscillation sample of thermoelectric unit.The damping state analysis module is connected to the damped oscillation sampling module, according to damped oscillation sample analysis damping state, produces the damping state analytic signal.Damping control module is connected to the damping state analysis module, produces damping control signal according to the damping state analytic signal, and damping control signal is applied in the electrical network, the damping adjusting state.
In one embodiment, the damped oscillation sampling module comprises: oscillatory trigger circuit, LC oscillation circuit and impulse sampling circuit.Oscillatory trigger circuit comprises the first triode and base biasing resistor.The LC oscillation circuit comprises inductance, electric capacity, and the LC oscillation circuit is connected to power supply as driving source, and the LC oscillation circuit is connected to the collector electrode of the first triode.The impulse sampling circuit comprises the second triode, and conducting when the second triode reaches predetermined value at the amplitude of LC oscillation circuit produces pulse signal.In one embodiment, the LC oscillation circuit comprises the partition circuit, cuts off circuit and cut off driving source after the starting of oscillation of LC oscillation circuit, LC oscillation circuit free oscillation decay.
In one embodiment, damping control module comprises: vibration wave generation circuit, high-voltage charging circuit and charge switch.The vibration wave generation circuit produces damp oscillatory wave as damping control signal.The high-voltage charging circuit is connected to the vibration wave generation circuit, is the charging of vibration wave generation circuit.Charge switch is connected between high-voltage charging circuit and the vibration wave generation circuit.
In one embodiment, the vibration wave generation circuit comprises: oscillator coil and filtering device.Filtering device comprises filter inductance, filter resistance and filter capacitor.In one embodiment, the high-voltage charging circuit comprises high pressure wave loop and charge circuit.The high pressure wave loop comprises mutual inductor and commutating circuit.Charge circuit comprises charging resistor and charging capacitor.
The detection of damped oscillation of the present invention and adjusting device be the oscillation damping of detection of grid in real time, and regulates according to the situation of damping, guarantees the stable operation of thermoelectric unit.
Description of drawings
Fig. 1 has disclosed according to the detection of the damped oscillation of one embodiment of the invention and the structured flowchart of adjusting device.
Fig. 2 has disclosed the circuit diagram according to damped oscillation sampling module in the detection of the damped oscillation of an embodiment of the invention of running quickly and the adjusting device.
Fig. 3 has disclosed the circuit diagram according to damping control module in the detection of the damped oscillation of an embodiment of the invention of running quickly and the adjusting device.
Embodiment
With reference to shown in Figure 1, the present invention has disclosed a kind of detection and adjusting device of damped oscillation, be used for thermoelectric unit, the detection of this damped oscillation and adjusting device 100 comprise: damped oscillation sampling module 102, damping state analysis module 104 and damping control module 106.
Damped oscillation sampling module 102 is from connecting the electrical network sampling damped oscillation sample of thermoelectric unit.Damping state analysis module 104 is connected to damped oscillation sampling module 102, according to damped oscillation sample analysis damping state, produces the damping state analytic signal.Damping control module 106 is connected to the damping state analysis module, produces damping control signal according to the damping state analytic signal, and damping control signal is applied in the electrical network, the damping adjusting state.
With reference to shown in Figure 2, this damped oscillation sampling module 102 comprises oscillatory trigger circuit, LC oscillation circuit and impulse sampling circuit.Oscillatory trigger circuit comprises the first triode T1 and base biasing resistor R1.The LC oscillation circuit comprises inductance L 1, capacitor C 1.The LC oscillation circuit is connected to power supply VCC as driving source.The LC oscillation circuit is connected to the collector electrode of the first triode T1.In the embodiment shown in Figure 2, the LC oscillation circuit also comprises the partition circuit, cuts off circuit and comprises capacitor C 3, cuts off circuit and cut off driving source after the starting of oscillation of LC oscillation circuit, so that LC oscillation circuit free oscillation decay.The impulse sampling circuit comprises the second triode T2, and second triode T2 conducting when the amplitude of LC oscillation circuit reaches predetermined value produces pulse signal.
Continue with reference to shown in Figure 2, the operation principle of this damped oscillation sampling module 102 is as follows: oscillatory trigger circuit is comprised of the first triode T1 and base biasing resistor R1.Signal from electrical network is input to the A end, the variation of power network signal makes the first triode T1 conducting, an end that is connected to the LC oscillation circuit (comprising inductance L 1 and capacitor C 1) on the collector electrode of the first triode T1 is dragged down, the other end of LC oscillation circuit meets positive supply VCC through source resistance R 2, VCC is as the driving source of LC oscillation circuit, under the effect of driving source, LC oscillation circuit starting oscillation.The LC oscillation circuit comprises the partition circuit, and namely capacitor C 3, and capacitor C 3 plays the partition effect, so that the first triode T1 again rapidly cut-off after conducting guarantees that the LC oscillation circuit can cut off rapidly driving source, the stage of LC oscillation circuit freedom of entry oscillatory extinction after starting of oscillation.Isolated by capacitor C 2 between LC oscillation circuit and the impulse sampling circuit.In the oscillatory process of LC oscillation circuit capacitor C 2 is discharged and recharged, capacitor C 2 is connected to the base stage of the second triode T2, and the emitter of the second triode T2 meets positive supply VCC by source resistance R 2, and the collector electrode of the second triode T2 is by earth resistance R3 ground connection.Between the second triode T2 and earth resistance R3, draw output B.If the amplitude of LC oscillation circuit is enough large, greater than the conducting voltage of the second triode T2, the second triode T2 will conducting.The second each time conducting of triode T2 will form a pulse signal at output B.The quantity of pulse signal has reflected the conducting number of times of the second triode T2, has also reflected the oscillatory regime of LC oscillation circuit.Under the state of damped oscillation, the oscillation amplitude of LC oscillation circuit is dwindled gradually, and pulse number should be less than the value of a setting.And under the state of underdamped oscillation, it is slower that the oscillation amplitude of LC oscillation circuit reduces, and pulse number is more, can be greater than the value of a setting.By the number of check at the pulse signal of output B acquisition, just can judge the oscillatory regime of LC oscillation circuit.
The number of the pulse signal that damped oscillation sampling module 102 obtains at output B is used as the damped oscillation sample and offers damping state analysis module 104.Damping state analysis module 104 is according to damped oscillation sample analysis damping state and produce the damping state analytic signal.For damping state analysis module 104, if pulse signal number more (greater than set point), illustrate that the LC oscillation circuit in the damped oscillation sampling module 102 is in the underdamped oscillation state, and this LC oscillation circuit is by the signal driver that comes from electrical network, therefore reflect that the damped oscillation of electrical network is not good enough, may be in underdamped oscillation, need to regulate damped oscillation.If pulse signal number less (less than set point) illustrates that the LC oscillation circuit in the damped oscillation sampling module 102 is in the damped oscillation state, corresponding, the damped oscillation of electrical network is normal, does not need to regulate.Damping state analysis module 104 produces the damping state analytic signal thus, and offers damping control module 106, informs whether damping control module 106 needs to produce damping control signal and come the damping adjusting state.
With reference to shown in Figure 3, damping control module 106 comprises vibration wave generation circuit, high-voltage charging circuit and charge switch.The high-voltage charging circuit is connected to the vibration wave generation circuit by charge switch, is the charging of vibration wave generation circuit.The vibration wave generation circuit produces damp oscillatory wave as damping control signal.With reference to shown in Figure 3, the high-voltage charging circuit comprises high pressure wave loop and charge circuit.The high pressure wave loop comprises mutual inductor T and commutating circuit Z.Charge circuit comprises charging resistor R11 and charging capacitor C11.The vibration wave generation circuit comprises oscillator coil L11 and filtering device, and filtering device comprises filter inductance L12, filter resistance R12 and filter capacitor C12.
Continue with reference to shown in Figure 3, the operation principle of this damping control module 106 is as follows: the high-voltage charging circuit comprises high pressure wave loop and charge circuit.The high pressure wave loop comprises mutual inductor T and commutating circuit Z.Derive from the power supply signal ac supply signal of alternating current after the primary side input of mutual inductor T, finish by the second siding ring mutual inductance and boost.Form more stable high pressure wave signal at capacitor C 10 two ends behind the voltage wave process commutating circuit Z rectifying and wave-filtering after boosting.This high pressure wave signal charges to filling the loop, and charge circuit is comprised of charging resistor R11 and charging capacitor C11, and to charging capacitor C11 charging, to produce each time the wave of oscillation ready for the vibration wave generation circuit by charging resistor R11 for the high pressure wave signal.
The high-voltage charging circuit links to each other by charge switch K between the wave generation circuit with vibration.The vibration wave generation circuit comprises oscillator coil L11 and filtering device.Filtering device comprises filter inductance L12, filter resistance R12, filter capacitor C12, also comprises the output resistance R13 for output.After the high-voltage charging circuit is finished charging, so that charge switch K conducting.Charging capacitor C11 produces circuit discharging to the wave of oscillation.In the discharge process, oscillator coil L11 starting of oscillation produces the wave of oscillation, and the wave of oscillation forms damp oscillatory wave at output C after filter inductance L12, filter resistance R12, filter capacitor C12 filtering.Output resistance R13 is used for the damp oscillatory wave output of output C.Charging capacitor C11 once discharge finish after, charge switch K disconnects again, charging capacitor C11 is charged as next time discharge and prepares.Like this, just can obtain damp oscillatory wave at output C as required.
Damping control module 106 utilizes the damp oscillatory wave of output C as damping control signal, when needs are regulated the electrical network damping state this damp oscillatory wave is put in the electrical network as positive damping.
The detection of damped oscillation of the present invention and adjusting device be the oscillation damping of detection of grid in real time, and regulates according to the situation of damping, guarantees the stable operation of thermoelectric unit.
Claims (6)
1. the detection of a damped oscillation and adjusting device is characterized in that, the detection of this damped oscillation and adjusting device are used for thermoelectric unit, comprising:
The damped oscillation sampling module is from connecting the electrical network sampling damped oscillation sample of thermoelectric unit;
The damping state analysis module is connected to described damped oscillation sampling module, according to described damped oscillation sample analysis damping state, produces the damping state analytic signal;
Damping control module is connected to described damping state analysis module, produces damping control signal according to the damping state analytic signal, and damping control signal is applied in the described electrical network, the damping adjusting state.
2. the detection of damped oscillation as claimed in claim 1 and adjusting device is characterized in that, described damped oscillation sampling module comprises:
Oscillatory trigger circuit, oscillatory trigger circuit comprise the first triode and base biasing resistor;
The LC oscillation circuit comprises inductance, electric capacity, and the LC oscillation circuit is connected to power supply as driving source, and the LC oscillation circuit is connected to the collector electrode of the first triode;
The impulse sampling circuit comprises the second triode, and conducting when the second triode reaches predetermined value at the amplitude of LC oscillation circuit produces pulse signal.
3. the detection of damped oscillation as claimed in claim 2 and adjusting device is characterized in that, described LC oscillation circuit comprises the partition circuit, cut off circuit and cut off driving source after the starting of oscillation of LC oscillation circuit, LC oscillation circuit free oscillation decay.
4. the detection of damped oscillation as claimed in claim 1 and adjusting device is characterized in that, described damping control module comprises:
The vibration wave generation circuit produces damp oscillatory wave as damping control signal;
The high-voltage charging circuit is connected to described vibration wave generation circuit, is the charging of vibration wave generation circuit;
Charge switch is connected between described high-voltage charging circuit and the vibration wave generation circuit.
5. the detection of damped oscillation as claimed in claim 4 and adjusting device is characterized in that, described vibration wave generation circuit comprises:
Oscillator coil;
Filtering device comprises filter inductance, filter resistance and filter capacitor.
6. the detection of damped oscillation as claimed in claim 4 and adjusting device is characterized in that, described high-voltage charging circuit comprises:
The high pressure wave loop comprises mutual inductor and commutating circuit;
Charge circuit comprises charging resistor and charging capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102432203A CN102957158A (en) | 2011-08-23 | 2011-08-23 | Damped oscillation detecting and regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102432203A CN102957158A (en) | 2011-08-23 | 2011-08-23 | Damped oscillation detecting and regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102957158A true CN102957158A (en) | 2013-03-06 |
Family
ID=47765579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102432203A Pending CN102957158A (en) | 2011-08-23 | 2011-08-23 | Damped oscillation detecting and regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102957158A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277790A (en) * | 2015-10-28 | 2016-01-27 | 浙江大学 | Resistance, inductance and capacitance measurement method based on damping oscillatory wave in oscillation circuit |
| CN109393995A (en) * | 2017-08-16 | 2019-03-01 | 佛山市顺德区美的电热电器制造有限公司 | Heating platform and appliance identification method |
| CN113176740A (en) * | 2020-01-24 | 2021-07-27 | 意法半导体(鲁塞)公司 | Regulating integrated circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2672660Y (en) * | 2003-12-05 | 2005-01-19 | 华为技术有限公司 | Circuit for producing analogue damping vibration wave |
| CN101335457A (en) * | 2007-06-29 | 2008-12-31 | 通用电气公司 | Power system stabilizer and method |
| CN201508205U (en) * | 2009-02-27 | 2010-06-16 | 曼瑞德自控系统（乐清）有限公司 | LC damped oscillation volume sampler |
-
2011
- 2011-08-23 CN CN2011102432203A patent/CN102957158A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2672660Y (en) * | 2003-12-05 | 2005-01-19 | 华为技术有限公司 | Circuit for producing analogue damping vibration wave |
| CN101335457A (en) * | 2007-06-29 | 2008-12-31 | 通用电气公司 | Power system stabilizer and method |
| CN201508205U (en) * | 2009-02-27 | 2010-06-16 | 曼瑞德自控系统（乐清）有限公司 | LC damped oscillation volume sampler |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277790A (en) * | 2015-10-28 | 2016-01-27 | 浙江大学 | Resistance, inductance and capacitance measurement method based on damping oscillatory wave in oscillation circuit |
| CN105277790B (en) * | 2015-10-28 | 2017-12-01 | 浙江大学 | The measuring method of resistance based on damp oscillatory wave, inductance and electric capacity in a kind of oscillation circuit |
| CN109393995A (en) * | 2017-08-16 | 2019-03-01 | 佛山市顺德区美的电热电器制造有限公司 | Heating platform and appliance identification method |
| CN113176740A (en) * | 2020-01-24 | 2021-07-27 | 意法半导体(鲁塞)公司 | Regulating integrated circuit |
| CN113176740B (en) * | 2020-01-24 | 2024-05-28 | 意法半导体(鲁塞)公司 | Regulating an integrated circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5093386B2 (en) | Power transmission device and power transmission system | |
| CN102035268B (en) | Wireless power feeder and wireless power transmission system | |
| CN102998575B (en) | Electric leakage sensing apparatus | |
| JP6753307B2 (en) | Wireless power feeders, wireless power receivers, and wireless power transfer systems | |
| CN102645605A (en) | Electric leakage detection apparatus | |
| US10205084B2 (en) | Power harvesting | |
| CN103219754B (en) | single-loop charging device and single-loop charging method | |
| CN102957158A (en) | Damped oscillation detecting and regulating device | |
| CN108781056A (en) | Crystal oscillator and its control circuit | |
| Richter et al. | Tunable interface for piezoelectric energy harvesting | |
| CN105337470A (en) | Vibration energy collecting device | |
| CN201247305Y (en) | Device for generating oscillating wave for electrical equipment experiment | |
| CN110260892A (en) | Inductance type transducer and method for running inductance type transducer | |
| KR101731722B1 (en) | Electronic device for generation of an audible alarm or music | |
| KR101558880B1 (en) | A relaxation oscillator | |
| Yoon et al. | A 1452-% power extraction improvement energy harvesting circuit with simultaneous energy extraction from a piezoelectric transducer and a thermoelectric generator | |
| US2747090A (en) | Electromechanical oscillator detector system | |
| CN107085141B (en) | A kind of resonance point method for catching, controller and capture system | |
| Cai et al. | System design of a time-controlled broadband piezoelectric energy harvesting interface circuit | |
| Wu et al. | A parallel-SSHI rectifier for ultra-low-voltage piezoelectric vibration energy harvesting | |
| CN208257453U (en) | The floating charge equipment of timing termination | |
| CN107121626A (en) | A kind of production method of peak values of ac superimposed pulse Resonant High Voltage | |
| CN108808892B (en) | Metal foreign matter detection method of induction type power supply and power supply module thereof | |
| Guyomar et al. | Energy harvesting using non-linear techniques | |
| CN105186657B (en) | Electronic equipment and its charging method, ultrasonic wave generating means and generation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130306 |