CN111009884B - False breakdown response system and implementation method of pulse power device - Google Patents
False breakdown response system and implementation method of pulse power device Download PDFInfo
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- CN111009884B CN111009884B CN201911257984.0A CN201911257984A CN111009884B CN 111009884 B CN111009884 B CN 111009884B CN 201911257984 A CN201911257984 A CN 201911257984A CN 111009884 B CN111009884 B CN 111009884B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/125—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M11/00—Power conversion systems not covered by the preceding groups
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/01—Details
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
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Abstract
The invention discloses a false breakdown response system of a pulse power device and an implementation method. The system comprises a mis-breakdown detection unit, a control module and a charging time control unit; the mis-breakdown detection unit monitors mis-breakdown behavior in real time; if the mistaken breakdown behavior occurs, the control module stops sending the enabling signal to the charging time control unit, and the control module resumes sending the enabling signal to the charging time control unit until the next charging cycle or working cycle is reached; and the charging time control unit controls the primary charging module to keep the charging behavior when receiving the enabling signal, otherwise controls the primary charging module to stop the charging behavior. The method comprises the step of controlling the primary charging module to stop charging until the charging action of the primary charging module is recovered when the next charging cycle begins if the switch of the high-voltage generating module is broken down by mistake in a working cycle. The invention can rapidly cut off the charging action when the mistaken breakdown occurs.
Description
Technical Field
The invention relates to the technical field of pulse power, in particular to a false breakdown response system of a pulse power device and an implementation method.
Background
The pulse power technology is a technology that stores electric energy slowly and releases the electric energy to a load instantly. A set of typical pulse power device mainly comprises a primary charging module, a high-voltage generating module and auxiliary systems such as vacuum, measurement, control and triggering. The primary charging module is responsible for slowly charging the high-voltage generation module, and the process is a slow storage process of electric energy; when charging to a desired voltage, the switch in the high voltage generation module is closed and the electrical energy is rapidly released to the load.
Fig. 1 is a schematic diagram of an equivalent circuit of a main body part of a pulse power device. The rectifier filter circuit and the full-bridge conversion circuit in fig. 1 form a primary charging module, and for a pulse power device with high power, a switching power supply using a series resonance full-bridge conversion circuit as a topology structure is mainly used as the primary charging module at present. The load circuit in fig. 1 is a high voltage generating module, and in the charging process, before the switch S is closed, the high voltage generating module can be equivalent to a capacitor CL, and when the switch S is closed, the electric energy is quickly released to the RL.
Pulsed power technology in the high power microwave domain requires pulsed power devices to operate at a higher frequency, e.g., 10Hz, 20Hz, etc. The repetition frequency working mode can be realized through the control of the control system. The primary charging module can be approximately equivalent to a constant current source, and the output current is constant. When the constant current source charges the capacitor load, the load voltage rises linearly. Fig. 2 is a schematic diagram of the charging current and the load voltage in the repetition mode. In the figure, the upper part is a current signal, and when the double-frequency operation is carried out, the output time t1 (charging period) is continued by the current i0 in one working period, and the output time t2 is alternately carried out at intervals. The lower part is a voltage signal, the voltage on the equivalent capacitor CL increases linearly with time within time t1, when the voltage reaches the desired voltage u0, the switch S closes, the voltage on CL releases, and the voltage value becomes 0.
The above is the normal working state of the pulse power device. In the abnormal state, the phenomenon is different. The abnormal state is: in the process of the repetition frequency work of the pulse power device, the switch in the high-voltage generation module is broken down by mistake.
As shown in fig. 3. The high voltage generation module expects the switch to reclose when the charging voltage reaches u0 at time t 1. However, when the frequency is repeated, the charging does not reach u0 in a certain working period, and when the time t3 just passes, the switch is mistakenly broken, and the high-voltage generation module discharges in advance. And the primary charging module still continues constant current output at the moment. This causes an abnormality like fig. 3 in the voltage of the high voltage generation module.
The switch is mistakenly broken down to influence the high-voltage generation module and the primary charging module to different degrees. For the high voltage generation module, the slight influence is that the current pulse and a plurality of subsequent pulses fail to work (fig. 3 is a schematic diagram, only the current pulse and the subsequent pulse fail are drawn), and the repetition frequency work can continue; the medium influence is that all the current and the following pulse work fails and the repetition frequency work fails; the severe effect is that not only the repetition frequency operation fails, but also some components inside the module are broken down and damaged. For the primary charging module, no influence is caused in a mild state, and the charging module continues to output current in a repeated frequency manner; the medium influence is that the charging module is halted due to the abnormal interference of the high-voltage module, the repeated frequency operation is terminated, and the charging module needs to be restarted; the severe effect is that irreversible damage is caused by excessive interference electric pulses, and the problem cannot be solved by restarting and hardware needs to be replaced.
When the existing pulse power device works at a repetition frequency, the false breakdown is monitored manually or the waveform on an oscilloscope is monitored, and the waveform abnormality means that the false breakdown occurs; or, note that listening to the disruptive sounds of the switching repeat frequency operation, for example sounds produced rhythmically at 10Hz, means normal, and as soon as the rhythm is significantly lost, the switch disruptive sounds appear uneven, sometimes accompanied by the sound of disruptive sparks, meaning false breakdowns. The countermeasure for the abnormality is to perform manual emergency stop, that is, to emergency stop the operation of the charging module. Because a person's reaction time may take several seconds, it is often too late to stop, such as in the case of operating at 10Hz for 2 seconds; or a jerk as late as time, e.g., 30 seconds at 10 Hz. The aforementioned different injuries may occur to the charging module and the high voltage generating module.
Disclosure of Invention
The invention aims to: in view of the above existing problems, a method is provided, which can rapidly cut off the charging behavior of the current charging cycle when a false breakdown occurs in a repetition frequency or single pulse cycle working state, so as to achieve the purpose of avoiding a series of interferences and damages to the charging module and the high voltage module, and ensuring that the repetition frequency work can be continued in the repetition frequency working state.
The technical scheme adopted by the invention is as follows:
a false breakdown response system of a pulse power device comprises a false breakdown detection unit, a control module and a charging time control unit;
the mistaken breakdown detection unit is used for sending a first signal to the control module when the switch of the pulse power device is mistakenly broken down;
if the control module does not receive the first signal, the control module continuously sends an enabling signal to the charging time control unit; if the first signal is received, stopping sending the enabling signal to the charging time control unit, and resuming sending the enabling signal to the charging time control unit until the next charging period is reached, or if the first signal is received, controlling the charging time control unit to stop working; the charging period is the charging time interval of each pulse in the working period of the pulse power device. The charging period corresponds to the charging period of each pulse in the repetition frequency working period; and a charging period of one pulse in a non-repetition frequency working state. The next charging cycle described above is, for the repetition frequency operating state, the charging period of the next pulse, that is, the charging starting point of the pulse after the erroneous breakdown or the end point of the charging cycle where the erroneous breakdown occurs, and for the operating state where only one pulse is generated, is when the pulse needs to be generated next time. And controlling the charging time control unit to stop working, and for the repetition frequency working state, the repetition frequency working state is an interrupted repetition frequency working state, and the repetition frequency working state can be selected to be recovered or ended in the subsequent process.
The charging time control unit controls the primary charging module to maintain a charging behavior (corresponding to a repetition frequency operating state, a behavior of alternately storing a charging period and a charging interval, and a operating state corresponding to a single pulse generation, to maintain the charging behavior for the high voltage generation module) when receiving the enable signal, and controls the primary charging module to stop the charging behavior when not receiving the enable signal. By applying the response system on the pulse power device, the charging behavior of the current charging period can be quickly cut off (not more than 5us) when the pulse power device is in fault breakdown in work, and the influence on the primary charging module and the high-voltage generation module is avoided. Meanwhile, if the battery is in a repeated frequency working state, the charging behavior can be recovered in the next charging period, so that the continuity of repeated frequency working is guaranteed; or the repetition frequency operation is interrupted as needed.
Further, the control module comprises a core control unit and a charging enabling control unit;
the charging enabling control unit is used for continuously transmitting an enabling signal to the core control unit in the working period of the pulse power device;
the core control unit is used for monitoring the detection result of the false breakdown detection unit, transmitting the enabling signal to the charging time control unit when the false breakdown detection unit does not send the first signal, and interrupting the transmission of the enabling signal to the charging time control unit when the false breakdown detection unit sends the first signal until the next charging period is started, or controlling the charging time control unit to stop working when the false breakdown detection unit sends the first signal.
In the scheme, the core control unit plays a role of controlled on/off, the enable signal does not need to be regenerated every time, and only the on or off operation is needed, so that the enable signal is stable for the subsequent units, and the calculation amount of the core control unit is small.
Furthermore, the device also comprises a false breakdown counting unit which is connected with the false breakdown detecting unit and used for counting the first signal sent by the false breakdown detecting unit.
The design belongs to the preferred design, and can help to know the stability and health degree of the operation of the pulse power device.
Further, the charging device also comprises a charging standby signal unit which is connected with the charging time control unit and used for sending a charging standby signal;
the charging time control unit is used for controlling the primary charging module to keep a charging behavior when receiving a charging standby signal and an enabling signal at the same time; otherwise, controlling the primary charging module to stop the charging action.
The design is also a preferred design, and a double-triggering mechanism is adopted, so that misoperation of the primary charging module can be prevented.
Further, the method for detecting whether the discharge switch of the pulse power device is erroneously broken down by the erroneous-breakdown detecting unit includes: the mistaken breakdown detection unit detects whether current flows through a discharge switch of the pulse power device in a charging period through the current detection device, and if so, the mistaken breakdown is judged to occur.
By utilizing the characteristic of the charging behavior of the pulse power device, whether the error breakdown occurs or not can be conveniently and accurately detected through small calculation amount and hardware configuration.
The invention provides a realization method of a false breakdown response system of a pulse power device, wherein the pulse power device comprises a primary charging module and a high-voltage generating module; the implementation method comprises the following steps:
A. monitoring a switch of a high-voltage generation module in real time in a working period of the pulse power device, and sending a first signal when the switch of the high-voltage generation module is punctured by mistake;
B. monitoring the first signal, controlling the primary charging module to stop charging when the first signal is detected, and recovering the charging behavior of the primary charging module until the next charging cycle is started or the working cycle of the next pulse power device is started; the charging period is the charging time interval of each pulse in the working period of the pulse power device.
For step B, the charging behavior is resumed at the beginning of the next charging cycle, and the continuity of the repeated frequency operation is maintained corresponding to the repeated frequency operation state. If the charging behavior is recovered when the next pulse power device working cycle begins, the current repetition frequency working cycle is terminated, and the working cycle which needs to generate pulses next time is restarted.
Through the monitoring to the mistake breakdown behavior, can make the response fast, and then cut off the action of charging rapidly, prevent the influence to the pulse power device.
Further, in the step a, when the high voltage generation module switch is in the fault breakdown, the fault breakdown behavior is counted.
Further, in the step B, the method for controlling the primary charging module to stop the charging action includes:
the action of starting/stopping charging of the primary charging module is controlled by the charging time control unit; when the charging time control unit does not receive the enabling signal or is in a non-working state, the charging time control unit controls the primary charging module to stop charging; the method for controlling the primary charging module to stop the charging action comprises the following steps: and stopping sending the enabling signal to the charging time control unit or controlling the charging time control unit to stop working.
The charge time control unit in the non-operating state should be understood as: and under the closed or open state, controlling the primary charging module to stop working.
Further, the method for suspending the sending of the enable signal to the charging time control unit or controlling the charging time control unit to stop working comprises the following steps:
the charging time control unit is used for generating a charging time control signal according to the charging time, and sending the charging time control signal to the charging time control unit when the charging time control unit detects the first signal.
Further, in step B, the method for controlling the primary charging module to stop the charging action includes:
the charging time control unit controls the primary charging module to stop charging when not receiving the charging standby signal or the enabling signal; the charging standby signal is generated by the charging standby control unit and is directly sent to the charging time control unit; the method for controlling the primary charging module to stop the charging action further comprises the following steps: and turning off the charging standby control unit.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
after the charging control scheme is applied, when the pulse power device is in error breakdown in working, the tail part of the current charging period can be quickly cut off, and a series of interference and damage to the charging module and the high-voltage module are avoided. For the repetition frequency working state, the repetition frequency work can be ensured to be continuously carried out, and the repetition frequency work can be directly interrupted according to the requirement. In addition, the counting module is added, so that whether the pulse has errors or not and the number of the errors can be conveniently known, and the working quality of the pulse power device can be conveniently evaluated.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a block diagram of a typical pulse power device.
Fig. 2 is a schematic diagram of the current of the primary charging module and the voltage of the load equivalent capacitor during normal repetition frequency operation.
Fig. 3 is a schematic diagram of the current of the primary charging module and the voltage of the load equivalent capacitor when the re-frequency operation is in false breakdown.
Fig. 4 is a schematic diagram of the current of the primary charging module and the voltage of the load equivalent capacitance when a false breakdown occurs in the re-frequency operation after the inventive system or method is used.
Fig. 5 is a block diagram of a false strike response system of the pulse power device of the present invention.
Fig. 6 is a detailed circuit diagram of the false strike response system of the pulse power device of the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Example one
Referring to fig. 5, the present embodiment discloses a false breakdown response system of a pulse power device, which includes a false breakdown detection unit, a control module and a charging time control unit.
The mistaken breakdown detection unit is used for sending a mistaken breakdown signal to the control module when a discharge switch of the pulse power device is mistakenly broken down. The misfiring signal may be defined as a pulse signal.
If the control module does not receive the first signal in the working period of the pulse power device, the control module continuously sends an enabling signal (which is the working state when the error breakdown does not occur) to the charging time control unit; if the mistaken breakdown signal is received, stopping sending the enabling signal to the charging time control unit, and resuming sending the enabling signal to the charging time control unit until the next charging period is reached; or if the first signal is received, controlling the charging time control unit to stop working. The charging period is the charging time interval of each pulse in the working period of the pulse power device. The response system is suitable for pulse power devices in a plurality of (one or more) pulse working states of repeated frequency working state and non-repeated frequency working state, and the charging period is the time period of single pulse charging for the two working states.
Specifically, the control module includes a core control unit and a charge enable control unit. The charging enabling control unit is used for continuously transmitting an enabling signal to the core control unit in the working period of the pulse power device; the core control unit is used for monitoring the detection result of the false breakdown detection unit, transmitting the enabling signal to the charging time control unit when the false breakdown detection unit does not send out the false breakdown signal, and interrupting the transmission of the enabling signal to the charging time control unit when the false breakdown detection unit sends out the false breakdown signal until the next charging period is started, or controlling the charging time control unit to stop working when the false breakdown detection unit sends out the first signal.
The charging time control unit controls the primary charging module to keep a charging behavior when receiving the enabling signal, and controls the primary charging module to stop the charging behavior when not receiving the enabling signal.
And for the condition that the controller stops sending the enabling signal and recovers in the next charging period, in order to ensure that the pulse power device continues to work after skipping the charging period in which the error breakdown action occurs, and for the condition that the charging time control unit is controlled to stop working, the current working period of the pulse power device is ended.
It should be noted that the charge time control unit may be turned off, or in an on state, the charge time control unit may stop driving the primary charging module (i.e., control the primary charging module to stop operating).
Example two
As shown in fig. 5, the present embodiment discloses a false breakdown response system of a pulse power device, which includes a false breakdown detection unit, a false breakdown counting unit, a core control unit, a charging enable control unit, a charging standby signal unit, and a charging time control unit.
The mistaken breakdown detection unit is used for sending a mistaken breakdown signal to the core control unit when a discharge switch of the pulse power device is mistakenly broken down.
The false breakdown counting unit is used for counting the number of the false breakdown signals in the working period. As a judgment index of the working quality of the pulse power device. The stability and the health degree of the operation of the pulse power device are facilitated to be known.
The charging enabling control unit is used for continuously sending an enabling signal to the core control unit at least in each charging period (the working state of a single pulse is only one charging period).
The core control unit is used for monitoring the detection result of the false breakdown detection unit, transmitting the enabling signal to the charging time control unit when the false breakdown detection unit does not send out the false breakdown signal, and interrupting the transmission of the enabling signal to the charging time control unit when the false breakdown detection unit sends out the false breakdown signal until the next charging period is started; or when the false breakdown detection unit sends a false breakdown signal, the charging time control unit is controlled to stop working.
The charging standby signal unit is used for continuously sending a charging standby signal to the charging time control unit at least in a charging period. The setting of the charging standby signal unit becomes a dual control for the control of the charging time control unit, which can prevent the malfunction of the charging time control unit to a large extent.
The charging time control unit controls the primary charging module to keep charging when receiving the charging standby signal and the enabling signal at the same time; otherwise (namely when the enable signal is not received, or the charging standby signal unit is turned off, or the charging time control unit is controlled to store the non-working state), the primary charging module is controlled to stop the charging action.
EXAMPLE III
As shown in fig. 6, the present embodiment discloses a circuit structure of the response system in the above-described embodiment. The system structure diagram of fig. 5 is divided into 6 functional circuit modules, namely, a false breakdown detection unit, a core control unit, a false breakdown counting unit, a charging standby signal unit, a charging enable control unit and a charging time control unit. In this embodiment, the pulsed power device is in the repeated frequency operating state as an example, and the response of the non-repeated frequency operating state refers to the response mechanism of a single charging cycle in this embodiment.
The false breakdown detection unit detects a false breakdown current signal by using a current transformer (or other current monitoring device), and the detection position is at the switch S in fig. 1.
The charging time control unit is connected to the primary charging module. The primary charging module adopts the full-bridge series resonance technical route shown in fig. 1, and is a high-frequency switching power supply which can realize constant current output and is essentially used for stably outputting energy in pulses at high frequency, such as 30 kHz. In this embodiment, the operating state of the pulse power device is required to be 20Hz, and therefore, the charging time, i.e., t1 in fig. 2, is about 45 ms. The primary charging module charges the high voltage generating module, that is, transfers energy to the high voltage generating module in a pulse-by-pulse manner within 45ms at a frequency of 30 kHz. The charging process of one cycle requires about 1360 pulses, so-called charging time control, which essentially controls the number of charging pulses. The circuit of the charging time control unit is a general circuit, and is not detailed in fig. 6 for saving space.
And (3) normal working process: i, a signal end of the charging standby signal unit gives a standby signal, and the position (i) is in a waiting state; ii, a signal end of the charging enable control unit gives an enable signal, a position in the circuit is changed into a high pulse, and a position is output to the high pulse; the position (iii) is in a waiting state when in standby, and once the position (iii) has high pulse, the position (i) immediately becomes high pulse; and when the pulses are all high pulses, the charging time control unit controls the primary charging module to start charging the high-voltage generation module according to a set charging period.
The working process of error breakdown: i in the original normal repeated frequency work (or in the charging process under the non-repeated frequency work state), the mistaken breakdown occurs suddenly, the current transformer on the mistaken breakdown detection unit catches the pulse current signal, and the position
Generating a pulse signal; ii position
The low pulse, the optical coupler is switched on, the counting unit is mistakenly punched to record the times and the position
A high pulse is changed, and a subsequent triode is conducted; iii position
The high pulse is changed to be high, and the output of the high pulse is stopped immediately after the triode is conducted; and iv, once the high pulse output is stopped, the charging time control unit immediately stops the current charging period and cuts off the charging tail. And (4) recovering the normal work flow (if the false breakdown does not occur any more) or directly finishing the work in the next charging period.
Suppose that the false breakdown occurs in a certain charging period in the working period, the false breakdown signal is captured from the current transformer, the high pulse is stopped being output by the tail cutting core control unit, the tail cutting action is executed, the effect is shown in fig. 4, and the reaction time is less than 5 mus. About 1360 pulse energies are output by the primary charging module in one charging period, and each pulse is about 33 mus on average, so that the prior art route can accurately control each charging pulse, has quite high precision and can fully ensure the operation of the power source.
Example four
The embodiment discloses a method for detecting a false breakdown behavior, which comprises the following steps: the pulse power device has a set working period in a repetition frequency working state, wherein the working period comprises a charging period and a time interval between adjacent charging periods. Under the non-repetition frequency working state, the working state of the pulse power device is the same as the single charging period of the repetition frequency working state. As shown in fig. 2, during normal repetition frequency operation, the current of the primary charging module has a certain periodicity, and correspondingly, the voltage of the high voltage generating module also has a certain periodicity, and the discharge time interval of the high voltage generating module has a periodicity. Whether the high-voltage generating module is in the repeated frequency working state or the non-repeated frequency working state, the discharging (switch breakdown) time of the high-voltage generating module is monitored, and if the high-voltage generating module discharges in advance (namely, when the charging period is not finished, the high-voltage generating module discharges), the switch is judged to be in the wrong breakdown state. Corresponding to fig. 3, if the high-voltage charging module discharges after time t3(t3< t1, t1 is the duration of the full charging cycle) after a certain charging cycle starts, it is determined that the switch has a false breakdown behavior. In addition, the current of the switch position of the high voltage generation module can be monitored, in a normal working state, the switch position only has current passing when discharging (at the end point of a charging period), and has no current in a single charging period, and if the switch has current passing (at a corresponding time point when t3 in fig. 3 is finished) when the switch does not reach the end point of charging in a certain charging period (such as t1 in fig. 2), the switch is judged to have a breakdown error behavior.
EXAMPLE five
The embodiment discloses a realization method of a false breakdown response system of a pulse power device, wherein the pulse power device comprises a primary charging module and a high-voltage generating module; the implementation method comprises the following steps:
A. and B, monitoring the switch of the high-voltage generation module in real time in the working period of the pulse power device, and executing the step B when the switch of the high-voltage generation module is punctured by mistake.
And when the high-voltage generation module switch is in error breakdown, counting the error breakdown behavior. For the determination of whether the mis-strike through behavior occurs, the scheme in the fourth embodiment can be utilized, and will not be described again.
B. And controlling the primary charging module to stop charging until the next charging cycle begins or the next working cycle of the pulse power device begins, and recovering the charging behavior of the primary charging module. And restoring the charging behavior at the beginning of the next charging period, wherein the charging behavior corresponds to the repeated frequency working state, and the continuity of repeated frequency working is maintained. If the charging behavior is recovered when the next pulse power device working cycle begins, the current repetition frequency working cycle is terminated, and the working cycle which needs to generate pulses next time is restarted.
Specifically, in step B, the method for controlling the primary charging module to stop the charging action includes:
the behavior of the primary charging module to start/stop charging is controlled by the charging time control unit. And the charging time control unit controls the primary charging module to stop charging when the enabling signal is not received or in a non-working state. The method for controlling the primary charging module to stop charging comprises the following steps: and stopping sending the enabling signal to the charging time control unit or controlling the charging time control unit to stop working. The charging time control unit is used for generating a charging time control signal according to the charging time, and sending the charging time control signal to the charging time control unit when the charging time control unit detects the first signal.
Or, the charging time control unit controls the primary charging module to start charging when receiving the enable signal and the charging standby signal at the same time, otherwise (i.e. one or both of the enable signal and the charging standby signal are absent) the primary charging module stops charging. The charging standby signal is generated by the charging standby control unit and is directly sent to the charging time control unit. Therefore, when the charging standby control unit is turned off or the mistaken breakdown action occurs, the primary charging module can be controlled to stop charging. In this way, malfunction of the primary charging module can be prevented.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. The false breakdown response system of the pulse power device is characterized by comprising a false breakdown detection unit, a control module and a charging time control unit;
the false breakdown detection unit is used for sending a first signal to the control module when the switch of the pulse power device is in false breakdown;
if the control module does not receive the first signal, the control module continuously sends an enabling signal to the charging time control unit; if the first signal is received, stopping sending the enabling signal to the charging time control unit, and resuming sending the enabling signal to the charging time control unit until the next charging period is reached, or if the first signal is received, controlling the charging time control unit to stop working; the charging period is the charging time interval of each pulse in the working period of the pulse power device;
the charging time control unit controls the primary charging module to keep a charging behavior when receiving the enabling signal, and controls the primary charging module to stop the charging behavior when not receiving the enabling signal.
2. The mis-strike response system of claim 1 wherein the control module comprises a core control unit and a charge enable control unit;
the charging enabling control unit is used for continuously transmitting an enabling signal to the core control unit in the working period of the pulse power device;
the core control unit is used for monitoring the detection result of the false breakdown detection unit, transmitting the enabling signal to the charging time control unit when the false breakdown detection unit does not send the first signal, and interrupting the transmission of the enabling signal to the charging time control unit when the false breakdown detection unit sends the first signal until the next charging period is started, or controlling the charging time control unit to stop working when the false breakdown detection unit sends the first signal.
3. The mis-strike response system of claim 1, further comprising a mis-strike count unit coupled to the mis-strike detection unit for counting the first signal emitted by the mis-strike detection unit.
4. The mis-strike response system of claim 1, further comprising a charging standby signal unit connected to the charging time control unit for emitting a charging standby signal;
the charging time control unit is used for controlling the primary charging module to keep a charging behavior when receiving a charging standby signal and an enabling signal at the same time; otherwise, controlling the primary charging module to stop the charging action.
5. The mis-breakdown response system of any of claims 1-4, wherein the method for the mis-breakdown detection unit to detect whether the switch of the pulsed power device is mis-broken down is as follows: the mistaken breakdown detection unit detects whether current flows through a switch of the pulse power device in a charging period through the current detection device, and if so, the mistaken breakdown is judged to occur.
6. A method for realizing a false breakdown response system of a pulse power device comprises a primary charging module and a high-voltage generating module; the method is characterized by comprising the following steps:
A. monitoring a switch of a high-voltage generation module in real time in a working period of the pulse power device, and sending a first signal when the switch of the high-voltage generation module is punctured by mistake;
B. monitoring the first signal, controlling the primary charging module to stop charging when the first signal is detected, and recovering the charging behavior of the primary charging module until the next charging cycle is started or the working cycle of the next pulse power device is started; the charging period is the charging time interval of each pulse in the working period of the pulse power device.
7. The method for implementing the mis-breakdown response system as claimed in claim 6, wherein in step a, when the mis-breakdown occurs in the high voltage generating module switch, the mis-breakdown behavior is counted.
8. The method for implementing the mis-strike response system as recited in claim 6, wherein in step B, the method for controlling the primary charging module to stop charging comprises:
the action of starting/stopping charging of the primary charging module is controlled by the charging time control unit; when the charging time control unit does not receive the enabling signal or is in a non-working state, the charging time control unit controls the primary charging module to stop charging; the method for controlling the primary charging module to stop the charging action comprises the following steps: and stopping sending the enabling signal to the charging time control unit or controlling the charging time control unit to stop working.
9. The method for implementing the mis-strike response system as recited in claim 8, wherein the method for suspending the sending of the enable signal to the charging time control unit or controlling the charging time control unit to stop operating comprises:
the charging time control unit is used for generating a charging time control signal according to the charging time, and sending the charging time control signal to the charging time control unit when the charging time control unit detects the first signal.
10. The method for implementing the mis-strike response system of claim 8, wherein in step B, the method for controlling the primary charging module to stop charging comprises:
the charging time control unit controls the primary charging module to stop charging when not receiving the charging standby signal or the enabling signal; the charging standby signal is generated by the charging standby signal unit and is directly sent to the charging time control unit; the method for controlling the primary charging module to stop the charging action further comprises the following steps: and turning off the charging standby signal unit.
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