CN201570983U - DC generating set - Google Patents

DC generating set Download PDF

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Publication number
CN201570983U
CN201570983U CN2009201103508U CN200920110350U CN201570983U CN 201570983 U CN201570983 U CN 201570983U CN 2009201103508 U CN2009201103508 U CN 2009201103508U CN 200920110350 U CN200920110350 U CN 200920110350U CN 201570983 U CN201570983 U CN 201570983U
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China
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current
module
voltage
central processing
direct
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Expired - Lifetime
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CN2009201103508U
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高世泽
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Beijing Heng Yuanhua Information Technology Co. Ltd.
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BEIJING HEGEN ELECTRIC TECHNOLOGY Co Ltd
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Abstract

The utility model provides a DC generating set which comprises a high-frequency generator, a rectifier filter module, a central processing module and a current conversion module, wherein the rectifier filter module is connected with the high-frequency generator; the central processing module is used for generating and outputting a preset current-voltage value and a charging mode signal according to the battery capacity, load current, current-voltage signal and battery charging time; and the current conversion module is respectively connected with the rectifier filter module and the central processing module, used for converting a first DC current output by the rectifier filter module into a preset DC current according to the preset current-voltage value and the charging mode signal output by the central processing module, and feeding the current-voltage signal of the preset DC current back to the central processing module. The DC generating set can intelligently calculate and automatically adjust the magnitude of current-voltage of the output current, thereby ensuring the precision of the output current.

Description

Direct-current generating device
Technical field
The utility model relates to the DC generation technology, relates in particular to a kind of direct-current generating device.
Background technology
High frequency direct-current generating device (being high frequency oil machine) is commonly used to be the communication equipment power supply.
Fig. 1 is the structural representation of existing high frequency direct-current generating device.As shown in Figure 1, ultrasonic-frequency rotory generator 11 is electrically connected with straightening and filtering unit 12, straightening and filtering unit 12 is electrically connected with storage battery 13, load 14 and logic comparator circuit 15 respectively, and logic comparator circuit 15 is connected with E-Gas 17 with manual knob 16 respectively, and E-Gas 17 is connected with ultrasonic-frequency rotory generator.The workflow of this high frequency direct-current generating device is: operating personnel are according to battery capacity and load current, calculate the electric current that needs for storage battery 13 charging and for load 14 power supply stations, this circuit should be set in the electric current input logic comparison circuit 15 by manual knob 16 then for setting electric current; Ultrasonic-frequency rotory generator 11 produces electric current, after the electric current that produces carries out multichannel rectification and capacitor filtering processing through straightening and filtering unit 12, export as output current, logic comparator circuit 15 compares this output current and setting electric current, according to comparative result, regulate the size of E-Gas 17 by the mechanical adjustment isolated plant, to regulate the size of ultrasonic-frequency rotory generator 11 generation electric currents, until output current with set electric current and equate till, be used to this output current output storage battery 13 chargings and be load 14 power supplies this moment.
Existing high frequency direct-current generating device according to the numerical value of the required output current that manually calculates, is regulated the size of output current by the mechanical adjustment throttle, because mechanical adjustment is very slow, hysteresis quality is arranged, bigger overshoot can occur, cause the precision of output current size lower.
The utility model content
The purpose of this utility model provides a kind of direct-current generating device, to realize intelligence computation and the size of regulating output current automatically, improves the precision of output current size.
To achieve these goals, the utility model provides a kind of direct-current generating device, comprising:
Ultrasonic-frequency rotory generator is used for producing and exporting first alternating current;
Rectification filtering module is electrically connected with described ultrasonic-frequency rotory generator; Described rectification filtering module is used for described first alternating current is carried out rectifying and wave-filtering, and exports first direct current;
Central processing module was used for according to battery capacity, load current, current and voltage signals and charge in batteries time, generated and output predetermined current magnitude of voltage and charging modes signal; Described predetermined current magnitude of voltage is: the electric current that storage battery and load are required and the size of voltage; Described charging modes signal is for all filling signal or floating charge signal;
Current conversion module is electrically connected with described rectification filtering module and central processing module respectively; Described current conversion module is used for predetermined current magnitude of voltage and the charging modes signal according to described central processing module output, first direct current of described rectification filtering module output is converted to default direct current, and the current and voltage signals of described default direct current is fed back to described central processing module; The current/voltage numerical value of described default direct current equals described predetermined current magnitude of voltage.
The direct-current generating device that the utility model provides, central processing module is according to battery capacity, load current, current and voltage signals and charge in batteries time, intelligence computation goes out required predetermined current magnitude of voltage, current conversion module is according to this predetermined current magnitude of voltage then, automatically regulate the current/voltage size of output current, so that the current/voltage size of output current equals the predetermined current magnitude of voltage, realize intelligence computation and the size of regulating output current automatically, guaranteed the precision of output current.
Description of drawings
Fig. 1 is the structural representation of existing high frequency direct-current generating device;
Fig. 2 is the structural representation of the utility model direct-current generating device embodiment one;
Fig. 3 is the structural representation of the utility model direct-current generating device embodiment two.
Embodiment
Further specify the technical scheme of the utility model embodiment below in conjunction with the drawings and specific embodiments.
Fig. 2 is the structural representation of the utility model direct-current generating device embodiment one, and as shown in Figure 2, this direct-current generating device comprises: ultrasonic-frequency rotory generator 21, rectification filtering module 22, current conversion module 23 and central processing module 24; Ultrasonic-frequency rotory generator 21, rectification filtering module 22 and 23 in sequential series connections of current conversion module, central processing module 24 is electrically connected with current conversion module 23; Current conversion module 23 also is electrically connected with storage battery 40 and load 50 respectively.
Ultrasonic-frequency rotory generator 21 is used for producing and exporting first alternating current.
Rectification filtering module 22 is used for first alternating current to ultrasonic-frequency rotory generator 21 output carry out rectifying and wave-filtering after, export first direct current.
Central processing module 24 was used for according to battery capacity, load current, current and voltage signals and charge in batteries time, generate predetermined current magnitude of voltage and charging modes signal, and this predetermined current magnitude of voltage and charging modes signal are exported to current conversion module 23; Wherein, this predetermined current magnitude of voltage is: when direct-current generating device accumulators that the utility model provides and electric, and the required electric current and the size of voltage; This charging modes signal is for all filling signal or floating charge signal, the charging modes that adopts when being charge in batteries.
Current conversion module 23 is used for predetermined current magnitude of voltage and the charging modes signal according to central processing module 24 outputs, first direct current of rectification filtering module 22 output is converted to default direct current, and the current and voltage signals that will preset direct current feeds back to central processing module 24; Wherein, the current/voltage numerical value of default direct current equals above-mentioned predetermined current magnitude of voltage.Current conversion module 23 should be preset direct current, exported to storage battery 40 and load 50.
Among the utility model direct-current generating device embodiment, central processing module is according to battery capacity, load current, current and voltage signals and hold the charging interval, intelligence computation goes out required predetermined current magnitude of voltage, current conversion module is according to this predetermined current magnitude of voltage then, automatically regulate the current/voltage size of output current, so that the current/voltage size of output current equals the predetermined current magnitude of voltage, realized intelligence computation and the size of regulating output current automatically, improved the precision of output current.
Fig. 3 is the structural representation of the utility model direct-current generating device embodiment two, and as shown in Figure 3, this direct-current generating device comprises: ultrasonic-frequency rotory generator 31, rectification filtering module 32, current conversion module 33 and central processing module 34; Ultrasonic-frequency rotory generator 31, rectification filtering module 32 and 33 in sequential series connections of current conversion module, central processing module 34 is electrically connected with current conversion module 33.
Ultrasonic-frequency rotory generator 31 is used for producing and exporting first alternating current.
Rectification filtering module 32 comprises: rectification unit 321 and filter unit 323; Rectification unit 321 is electrically connected with ultrasonic-frequency rotory generator 31 and filter unit 323 respectively.Rectification unit 321 is used for first alternating current of ultrasonic-frequency rotory generator 31 outputs is carried out rectification, this first alternating current is converted to direct current, and this direct current is exported to filter unit 323.The direct current of 323 pairs of rectification units of filter unit, 321 outputs carries out Filtering Processing; Have only suitable Filtering Processing, could guarantee when the output of full power, the direct voltage that leaches (input voltage of high-frequency inversion unit) minimum is higher than described output valve (output voltage of high-frequency inversion unit), to guarantee the stable of output.Concrete, filter unit 323 can (Power Factor Correction abbreviates as: PFC) filter circuit for PPFC (Passive Power Factor Correction).
Central processing module 34 is accepted battery capacity setting, load current setting, current and voltage signals and charge in batteries time, and according to this battery capacity, load current, current and voltage signals and charge in batteries time, central processing module 34 calculates automatically and is storage battery and required predetermined current magnitude of voltage and the charging modes signal of electric, and this predetermined current magnitude of voltage and charging modes signal are exported to current conversion module 33; Wherein, this predetermined current magnitude of voltage is: when direct-current generating device accumulators that the utility model provides and electric, and required current/voltage size; This charging modes signal is for all filling or the floating charge signal charging modes that adopts when being charge in batteries.Battery capacity and load current can be imported in the central processing module by the mode of artificial input; Current and voltage signals is that the current and voltage signals that the electric current conversion module is exported the electric current conversion module feeds back to central processing module; The charge in batteries time, to be central processing module carried out computing by the current and voltage signals to electric current conversion module feedback to be obtained.When just beginning to load and storage battery power supply, the charging modes of accumulators, begins the charge in batteries time is picked up counting for all filling mode after charge in batteries is finished, and arrives preset charged after the time, and the charging modes of accumulators is become the floating charge mode.
Current conversion module 33 can comprise: high-frequency inversion unit 331, high-frequency rectification unit 333 and inversion control unit 335; High-frequency inversion unit 331 is electrically connected with rectification filtering module 32, and high-frequency rectification unit 333 is electrically connected with high-frequency inversion unit 331; Inversion control unit 335 is electrically connected with high-frequency inversion unit 331, high-frequency rectification unit 333 and central processing module 34 respectively.
High-frequency inversion unit 331 is used for first direct current of rectification filtering module 32 outputs is converted to second alternating current.
High-frequency rectification unit 333 is used for second alternating current of high-frequency inversion unit 331 outputs is carried out rectification, with the direct current of exporting after the rectification is storage battery and electric, and the current and voltage signals of the direct current exported after the rectification is fed back to inversion control unit 335.Storage battery and load distribute by self busbar, to the qualitative distribution of electric current of the utility model direct-current generating device output of receiving, because the capacitance characteristic of storage battery, make very qualitativeization of this distribution.
Inversion control unit 335 is according to the predetermined current magnitude of voltage of central processing module 34 outputs, the current and voltage signals of charging modes signal and high-frequency rectification unit 333 feedbacks, PID adjuster and PWM (Pulse Width Modulation by the voltage and current ring, pulse-width modulation) chip generates the inversion pulse-width signal, and this inversion pulse-width signal sent to high-frequency inversion unit 331, the size that second alternating current of output is regulated according to this inversion pulse-width signal in high-frequency inversion unit 331 is so that the numerical value of second alternating current of output equals the predetermined current magnitude of voltage that central processing module 34 generates.Wherein, inversion control unit 335 is dicyclo work, comprises voltage loop and current loop; To storage battery all fill or the charging modes of floating charge only influences Voltage loop, the comprehensive function of two loops influences the width of pulse-width modulation.
Concrete, inversion control unit 335 can be made of the degenerative circuit of high-gain, realize that by the degenerative circuit of the high-gain of PID adjuster low-frequency gain is very high, so that the low-frequency ripple when input high-frequency inversion unit is when exporting from the high-frequency inversion unit, decay to very little, hundreds of times can decay, thus, the direct-current generating device that makes the utility model provide is specially adapted to be the communication equipment power supply, because the less or intimate low-frequency ripple that does not have just can not cause interference to the conversation that the user uses communication equipment to carry out.
Because the bandwidth of PID adjuster, general electric current loop is tens KHz, and Voltage loop is several KHz; And switching frequency is 150 KHz, and just: the primary current voltage swing can 6 microseconds be regulated in the inversion control unit, and thus, the direct-current generating device that makes the utility model provide is very high to the degree of regulation of current/voltage.
When high-frequency inversion unit 331 is adjusted to the current/voltage numerical value of second alternating current of its output when equaling the predetermined current magnitude of voltage, the direct current of high-frequency rectification unit 333 rectifications output is called default direct current.Inversion control unit 335 feeds back to central processing module 34 with the current and voltage signals of the direct current of the rectification output of high-frequency rectification unit 333 feedbacks.When specifically implementing this programme, the current and voltage signals with high-frequency rectification unit 333 feedbacks that inversion control unit 335 can be real-time feeds back to central processing module 34; The current and voltage signals of this feedback, when coming processing module 34 to calculate predetermined current magnitude of voltage and charging modes signal automatically in being, required current and voltage signals.
If connect anti-or short circuit at battery terminal, perhaps output voltage is higher than the storage battery required voltage, perhaps when the circuit element temperature of this Blast Furnace Top Gas Recovery Turbine Unit (TRT) is too high, storage battery and load still are powered, then can cause burning of this Blast Furnace Top Gas Recovery Turbine Unit (TRT) or storage battery, for fear of above-mentioned fortuitous event, the direct-current generating device that the utility model provides can also comprise: signal acquisition module 35 and temperature acquisition module 36 output control modules 37; Signal acquisition module 35 is electrically connected with storage battery and central processing module 34 respectively; Temperature acquisition module 36 is electrically connected with rectification filtering module 32, current conversion module 33 and central processing module 34 respectively; Output control module 37 is electrically connected with current conversion module 33, central processing module 34, load 50 and storage battery 40 respectively.
Signal acquisition module 35 is used to obtain the storage battery feedback signal, and this storage battery feedback signal is sent to central processing module; This storage battery feedback signal comprises: battery terminal signal and battery tension signal.
Temperature acquisition module 36 is used to obtain the temperature signal of rectification filtering module and/or current conversion module, and the temperature signal of this rectification filtering module and/or current conversion module is sent to central processing module.
Output control module 37 is used to control the output of the default direct current that this current conversion module generates.
Central processing module 34 also is used for judging whether reversal connection of battery terminal according to the battery terminal signal, whether the voltage that direct current is preset in judgement according to the battery tension signal according to the temperature signal of rectification filtering module and/or current conversion module judges whether the temperature of rectification filtering module and/or current conversion module exceed temperature preset value greater than battery tension.Wherein this temperature preset value is the maximum temperature that rectification filtering module and/or current conversion module can bear.
When following abnormal conditions occurring: the battery terminal reversal connection, perhaps the voltage of default direct current is greater than battery tension, when perhaps the temperature of rectification filtering module and/or current conversion module exceeds the temperature preset value, central processing module 34 is to output control module 37 sending controling instructions, so that output control module 37 stops the output of default direct current.Output control module 37 can be a gate-controlled switch, and when aforementioned abnormal conditions occurring, central processing module 34 these gate-controlled switches of control disconnect, and promptly disconnect the power supply to storage battery and load.
In order to show that intuitively the direct-current generating device that power supply process, the utility model provide can also comprise display module.Display module is electrically connected with central processing module, be used for the signal that sends according to central processing module, whether current value, the mode (all filling or floating charge) of power supply, the battery terminal that is shown as the predetermined current magnitude of voltage of storage battery and electric, actual output connects instead, whether overvoltage of storage battery, whether this install information such as excess temperature.
Specifically describe the workflow of this direct-current generating device embodiment the time below in conjunction with Fig. 3 for storage battery and electric.
At first the information of battery capacity and load current is imported central processing module 34, for example: can be by operating personnel with in the above-mentioned signal input central processing module 34;
Ultrasonic-frequency rotory generator 31 produces and exports first alternating current to rectification filtering module 32; Rectification filtering module 32 carries out this first alternating current to export first direct current behind the rectifying and wave-filtering;
High-frequency inversion unit 331 is converted to second alternating current with first direct current of rectification filtering module 32 outputs, and this second alternating current is exported to high-frequency rectification unit 333; 333 pairs of these second alternating currents in high-frequency rectification unit carry out rectification, and the direct current after the rectification is exported to storage battery and load, and the current and voltage signals of the direct current exported after the rectification is fed back to inversion control unit 335;
Inversion control unit 335 sends to central processing module 34 with the current and voltage signals that high-frequency rectification unit 333 sends;
Central processing module 34 is according to battery capacity, load current, current and voltage signals and charge in batteries time of calculating according to this current and voltage signals, automatically calculate and be storage battery and required predetermined current magnitude of voltage and the charging modes signal of electric, and this predetermined current magnitude of voltage and charging modes signal are exported to inversion control unit 335;
Inversion control unit 335 is according to the current and voltage signals of predetermined current magnitude of voltage, charging modes signal and high-frequency rectification unit 333 feedbacks of central processing module 34 outputs, PID adjuster and PWM chip by the voltage and current ring generate the inversion pulse-width signal, and this inversion pulse-width signal is sent to high-frequency inversion unit 331; The size of second alternating current of output is regulated in high-frequency inversion unit 331 according to this inversion pulse-width signal;
Storage battery and load are exported to the direct current of its rectification output in high-frequency rectification unit 333, and the current and voltage signals of the real-time direct current that this rectification is exported feeds back to inversion control unit 335;
Signal acquisition module 35 is obtained the feedback signal of storage battery, and the feedback signal of this storage battery is sent to central processing module 34; Central processing module 34 judges according to the feedback signal of this storage battery whether the electrode of storage battery connects anti-or short circuit, whether the output voltage of judging this device is higher than the storage battery required voltage, if connect anti-or short circuit, perhaps the output voltage of this device is higher than storage battery required voltage (being overvoltage), then central processing module 34 output control signals are given output control module 37, stop output current with control output control module 37;
Temperature acquisition module 36 obtains the temperature signal of rectification filtering module and/or current conversion module, and the temperature signal of this rectification filtering module and/or current conversion module is sent to central processing module; Central processing module 34 judges according to this temperature signal whether the temperature of rectification filtering module and/or current conversion module exceeds the temperature preset value; If the temperature of rectification filtering module and/or current conversion module exceeds the temperature preset value, then central processing module 34 output control signals are given output control module 37, stop output current with control output control module 37.
Among the utility model direct-current generating device embodiment, central processing module is according to battery capacity, load current current and voltage signals and charge in batteries time, intelligence computation goes out required predetermined current magnitude of voltage, current conversion module is according to this predetermined current magnitude of voltage then, automatically regulate the current/voltage size of output current, so that the current/voltage size of output current equals the predetermined current magnitude of voltage, and by processing to storage battery feedback signal and temperature signal, can guarantee to connect instead at battery terminal, electric pole short circuit, stop power supply when overvoltage or excess temperature, realize intelligence computation and the current/voltage size of regulating output current automatically thus, guaranteed the precision of output current and the safety that storage battery uses.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.

Claims (7)

1. a direct-current generating device is characterized in that, comprising:
Ultrasonic-frequency rotory generator is used for producing and exporting first alternating current;
Rectification filtering module is electrically connected with described ultrasonic-frequency rotory generator; Described rectification filtering module is used for described first alternating current is carried out rectifying and wave-filtering, and exports first direct current;
Central processing module was used for according to battery capacity, load current, current and voltage signals and charge in batteries time, generated and output predetermined current magnitude of voltage and charging modes signal; Described predetermined current magnitude of voltage is: the electric current that storage battery and load are required and the size of voltage; Described charging modes signal is for all filling signal or floating charge signal;
Current conversion module is electrically connected with described rectification filtering module and central processing module respectively; Described current conversion module is used for predetermined current magnitude of voltage and the charging modes signal according to described central processing module output, first direct current of described rectification filtering module output is converted to default direct current, and the current and voltage signals of described default direct current is fed back to described central processing module; The current/voltage numerical value of described default direct current equals described predetermined current magnitude of voltage.
2. direct-current generating device according to claim 1 is characterized in that, described current conversion module comprises:
The high-frequency inversion unit is electrically connected with described rectification filtering module; Described high-frequency inversion unit is used for first direct current of described rectification filtering module output is converted to second alternating current;
The high-frequency rectification unit is electrically connected with described high-frequency inversion unit; Described high-frequency rectification unit be used for the described second alternating current rectification be direct current and export rectification after described direct current and the current and voltage signals of described direct current;
The inversion control unit is electrically connected with described high-frequency inversion unit, high-frequency rectification unit and central processing module respectively;
Described inversion control unit is according to the current and voltage signals of the described direct current of predetermined current magnitude of voltage, charging modes signal and the output of described high-frequency rectification unit of described central processing module output, generate the inversion pulse-width signal, and described inversion pulse-width signal sent to described high-frequency inversion unit, the current/voltage size that described second alternating current is regulated according to described inversion pulse-width signal in described high-frequency inversion unit is so that the current/voltage numerical value of described second alternating current equals described predetermined current magnitude of voltage;
Described inversion control unit sends to described central processing module with the current and voltage signals of the described direct current of described high-frequency rectification unit feedback.
3. direct-current generating device according to claim 2 is characterized in that, described inversion control unit is the high-gain negative-feedback circuit.
4. direct-current generating device according to claim 1 is characterized in that, also comprises:
Signal acquisition module is electrically connected with described storage battery and central processing module respectively; Described signal acquisition module is used to obtain the storage battery feedback signal, and described storage battery feedback signal is sent to described central processing module; Described storage battery feedback signal comprises: battery terminal signal and battery tension signal;
The temperature acquisition module is electrically connected with rectification filtering module, current conversion module and central processing module respectively; Described temperature acquisition module is used to obtain the temperature signal of described rectification filtering module and/or current conversion module, and the temperature signal of described rectification filtering module and/or current conversion module is sent to central processing module;
Output control module is electrically connected with described current conversion module and central processing module respectively; Described output control module is used to control the output of the described default direct current that described current conversion module generates.
5. direct-current generating device according to claim 1 is characterized in that, described rectification filtering module comprises:
Rectification unit is electrically connected with described ultrasonic-frequency rotory generator; Described rectification unit is used for first alternating current of described ultrasonic-frequency rotory generator output is converted to direct current;
Filter unit is electrically connected with described rectification unit; Described filter unit is used for the direct current of described rectification unit output is carried out Filtering Processing.
6. direct-current generating device according to claim 5 is characterized in that, described filter unit is the PPFC (Passive Power Factor Correction) filter circuit.
7. direct-current generating device according to claim 1 is characterized in that, also comprises: display module, described display module is electrically connected with described central processing module.
CN2009201103508U 2009-07-23 2009-07-23 DC generating set Expired - Lifetime CN201570983U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106786532A (en) * 2016-12-27 2017-05-31 爱恒能源科技（上海）有限公司 Electric intelligent optimizes distributor
CN111130345A (en) * 2020-01-09 2020-05-08 上海金智晟东电力科技有限公司 Automatic power supply device of internet of things sensor, internet of things sensor and internet of things equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106786532A (en) * 2016-12-27 2017-05-31 爱恒能源科技（上海）有限公司 Electric intelligent optimizes distributor
CN106786532B (en) * 2016-12-27 2023-11-14 爱恒能源科技（上海）有限公司 Intelligent power optimizing distributor
CN111130345A (en) * 2020-01-09 2020-05-08 上海金智晟东电力科技有限公司 Automatic power supply device of internet of things sensor, internet of things sensor and internet of things equipment

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