CN117424192A - Energy release control device and method for aviation high-speed turbine generator - Google Patents

Abstract

The invention relates to the technical field of power electronics, in particular to an energy release control device and method for an aviation high-speed turbine generator, wherein the energy release control device is connected in parallel on a circuit of the high-speed turbine generator connected with a rectifier, and comprises an energy release loop, a detection circuit and an energy release controller; one end of the detection circuit is connected to an output terminal of the high-speed turbine generator, the other end of the detection circuit is connected to the rectifier through the energy release loop and the energy release controller in sequence, and the other end of the detection circuit is also directly connected with the energy release controller. The invention realizes the effective discharge of the energy of the generator rotor in a short time through the energy discharge circuit and the power electronic switch, avoids the risk of generator galloping, has the advantages of compactness, portability, light weight, good maintainability, no influence on the power generation efficiency and the like, and ensures the stability and the safety of a power generation system.

Description

Energy release control device and method for aviation high-speed turbine generator

Technical Field

The invention relates to the technical field of power electronics, in particular to an energy release control device and method for an aviation high-speed turbine generator.

Background

The high-speed generator energy discharge device is used for discharging energy of a high-speed generator in an emergency, the output power of a prime motor and the generated power of the generator reach dynamic balance when the generator normally operates, the rotating speed is stable, however, when the load of the generator is abnormal, such as short circuit or open circuit and other faults, the load of the generator can be rapidly cut off, and the change rate of the output power of the prime motor is small due to slower response, so that the rotating speed of the generator rapidly rises after the load is cut off, overspeed faults are caused, and the mechanical structure of the generator can be damaged.

In order to solve the technical problem, in the prior art, a galloping protector is generally arranged at a prime motor side and a generator side, and after the load of the generator is switched, if the rapid rise of the rotating speed is detected, the prime motor galloping protector takes action to stop the power output of the prime motor in the modes of oil breaking, gas breaking and the like; emergency braking is usually adopted on the generator side, namely a clutch is arranged between the generator and the prime motor, a brake device is independently arranged at the same time, when overspeed fault or load disconnection occurs, the clutch breaks the power connection between the generator and the prime motor, and meanwhile, the brake device on the generator side acts to slow down and finally brake the generator.

However, although the protection of the motor galloping (fuel cut, gas cut and the like) is the most direct and effective protection mode, the mode is slower in action, and after the action of fuel cut, gas cut and the like is adopted, the power output cannot be immediately cut off at the moment of failure due to power delay, particularly in the occasions such as a turbine generator set and the like, the power delay of a turbine engine is large, meanwhile, the inertia of a generator is small, and the problem of galloping caused by the moment of rising of the rotating speed is also caused; the generator side protection needs to be provided with a clutch and a brake device, the volume and the weight are large, the clutch efficiency is low, the maintenance cost is extremely high, meanwhile, the generator rotor of the high-speed turbine generator set has small inertia, the turbine engine has high power hysteresis characteristic, when a fuel cut instruction is sent out, the power output of the turbine engine starts to drop after 1-2 seconds, however, the rotating speed of the generator rotor can rapidly rise due to the small inertia of the generator rotor, the generator galloping fault can be caused, the clutch and the brake are large in form weight, low in efficiency and high in maintenance cost, and the clutch and the brake are not suitable for aviation occasions, so that in order to solve the generator galloping problem of the high-speed turbine generator set under the condition that the load of the high-speed turbine generator set suddenly loses faults, the energy release aiming at the high-speed turbine generator rotor of aviation is needed.

Disclosure of Invention

The invention provides an energy release control device and method for an aviation high-speed turbine generator, which solve the technical problem that the existing high-speed generator still cannot solve the generator galloping problem of the aviation high-speed turbine generator set under the condition of sudden load loss fault.

In order to solve the technical problems, the invention provides an energy release control device and method for an aviation high-speed turbine generator.

In a first aspect, the present invention provides an energy bleed control device for an aeronautical high-speed turbine generator, the energy bleed control device being connected in parallel to a line connecting the high-speed turbine generator with a rectifier, the energy bleed control device comprising: the energy release circuit, the detection circuit and the energy release controller; one end of the detection circuit is connected to an output terminal of the high-speed turbine generator, the other end of the detection circuit is connected to the rectifier through the energy release loop and the energy release controller in sequence, and the other end of the detection circuit is also directly connected with the energy release controller;

the detection circuit is used for detecting the output voltage of the high-speed turbine generator and the current of the energy release loop, obtaining a corresponding generator output voltage value and an energy release loop current value, and sending the generator output voltage value and the energy release loop current value to the energy release controller;

And the energy release controller is used for controlling the energy release loop to be in an open circuit state when the high-speed turbine generator normally operates, controlling the energy release loop to enter a quick energy release stage when the active or passive triggering energy release action is judged according to the output voltage value of the generator, and jumping to the supplementary energy release stage to perform the energy release action if the supplementary energy release trigger signal is detected in the quick energy release stage.

In a further embodiment, the energy release loop comprises at least three loops, each loop comprising a power switch, a power resistor, a temperature sensor and a heat dissipation module; the power resistors in all the loops are connected in a star connection mode;

the grid electrode of each power switch is connected with the energy release controller, the source electrode of each power switch is connected to a high-speed turbine generator terminal through the detection circuit, and the drain electrode of each power switch is connected with each power resistor in the power resistor module in a one-to-one correspondence manner; and each power resistor is connected with a temperature sensor in one-to-one correspondence, and the heat dissipation module is connected with the energy release controller.

In a further embodiment, the determining process of the active or passive triggering energy release action is:

Acquiring high-speed turbine generator operation data, detecting the high-speed turbine generator operation data, and judging the action of actively triggering leakage energy when any triggering condition meeting the active triggering condition of leakage is detected according to the high-speed turbine generator operation data or a fault signal of a high-speed turbine generator controller is received; the active triggering conditions of the discharging comprise triggering conditions that the rising slope of the rotating speed of the generator exceeds a preset allowable rising slope threshold, triggering conditions that the rotating speed of the generator exceeds a preset allowable maximum rotating speed threshold and the falling slope of the rectifying output power of the generator exceeds a preset running power falling slope threshold;

and acquiring the estimated rotating speed of the generator according to the output voltage value of the generator and the number of poles of the generator acquired in advance, and judging that the energy release action is passively triggered when the estimated rotating speed of the generator is detected to exceed a preset maximum allowable rotating speed threshold or the rising slope of the estimated rotating speed of the generator exceeds a preset rising slope threshold.

In a further embodiment, the process of obtaining the estimated rotation speed of the generator specifically includes:

detecting the generator output voltage values of all phases output by the high-speed turbine generator, starting an energy release controller timer when the rising edge zero crossing point of the generator output voltage value of any one phase is detected, and taking the phase as a counting phase;

The energy leakage controller continues waiting, and records the current energy leakage controller timer count value as a first count value when detecting that the generator output voltage value of the counting phase falls along a zero crossing point;

the energy leakage controller continues waiting, and records the current energy leakage controller timer count value as a second count value when detecting that the counting phase generates the rising edge zero crossing point of the generator output voltage value again;

obtaining phase sine voltage period time according to the second count value and a preset timer count time interval;

obtaining the phase electric frequency of the generator according to the phase sinusoidal voltage cycle time;

according to the generator phase electric frequency and the generator pole number, calculating to obtain the generator rotating speed of the corresponding phase;

and calculating the average value of the generator rotating speeds of all phases to obtain the estimated rotating speed of the generator.

In a further embodiment, the rapid energy release phase is specifically:

when judging that the energy release action is actively or passively triggered, the energy release controller sends a full duty ratio PWM control signal to the energy release loop so as to drive the power switch to be conducted through the full duty ratio PWM control signal, and the power generator output voltage value and the energy release loop current value of any loop in the energy release loop are obtained in real time through a detection circuit, and meanwhile, the power resistance temperature value sent by each loop of the energy release loop is received;

According to the output voltage value of the generator and the current value of the energy release loop, calculating to obtain the current release power value of any loop in the release loops;

in any one of the bleeder circuits, when any one of the bleeder circuit current value, the power resistance temperature value and the current bleeder power value meets a supplemental bleeder trigger condition, generating a supplemental bleeder trigger signal;

when the current value of the energy release loop, the temperature value of the power resistor and the current release power value do not meet the supplementary energy release triggering condition, acquiring the current energy release rotating speed from the high-speed turbine generator or calculating according to the output voltage value of the generator and the current energy release loop to obtain the current energy release rotating speed, if the current energy release rotating speed is detected to be lower than the preset energy release releasing rotating speed threshold value, judging whether the current energy release action is the energy release action actively triggered by the fault signal of the high-speed turbine generator controller, and when the current energy release action is detected to be actively triggered by the fault signal of the high-speed turbine generator controller, continuously releasing energy until the high-speed turbine generator is stopped; releasing the energy release action when detecting that the current energy release action is not actively triggered by a fault signal of the high-speed turbine generator controller;

If the current energy release rotating speed is detected not to be lower than the preset energy release releasing rotating speed threshold, the rapid energy release stage is re-entered, and a full duty ratio signal is sent to the energy release loop through the energy release controller.

In a further embodiment, the supplemental energy release triggering condition specifically includes:

the triggering condition that the current value of the energy release loop of any loop exceeds a preset allowable maximum current value and the running time exceeding the preset allowable maximum current value exceeds a preset overcurrent running time;

the triggering condition that the temperature value of the power resistor of any one of the bleeder circuits exceeds a preset allowable maximum temperature value and the running time exceeding the preset allowable maximum temperature value exceeds a preset overtemperature running time;

a triggering condition that the rising slope of the power resistance temperature value of any one of the bleeder circuits exceeds a preset allowable power resistance temperature rising slope threshold value and the running time exceeding the preset allowable power resistance temperature rising slope threshold value exceeds a preset overtemperature slope running time;

the current bleed power value of any one of the bleed circuits exceeds a preset allowed maximum bleed power value and the run time exceeding the preset allowed maximum bleed power value exceeds a trigger condition of a preset overpower run time.

In a further embodiment, the supplementary energy release phase is specifically:

when a supplementary energy discharging trigger signal is detected, a supplementary energy discharging stage is started, in all loops in the discharging loop, single loop current proportion duty ratio of each loop is calculated according to the energy discharging loop current value and a preset allowable maximum current value, single loop temperature proportion duty ratio of each loop is calculated according to the power resistance temperature value, the preset allowable maximum temperature value, the power resistance temperature value rising slope and the preset allowable power resistance temperature rising slope threshold, and single loop power proportion duty ratio of each loop is calculated according to the current discharging power value and the preset allowable maximum discharging power value;

in any one of the bleeder circuits, screening a single-circuit duty ratio minimum value from the single-circuit current proportion duty ratio, the single-circuit temperature proportion duty ratio and the single-circuit power proportion duty ratio corresponding to the bleeder circuits, generating a single-circuit variable duty ratio PWM signal according to the single-circuit duty ratio minimum value, and transmitting the single-circuit variable duty ratio PWM signal to the energy-dissipating circuit;

acquiring the current energy release rotating speed from the high-speed turbine generator or calculating according to the output voltage value of the generator and the current of the current energy release loop to obtain the current energy release rotating speed, judging whether the current energy release action is actively triggered by a fault signal of the high-speed turbine generator or not if the current energy release rotating speed is detected to be lower than a preset energy release releasing rotating speed threshold value, and continuously releasing energy until the high-speed turbine generator is stopped when the current energy release action is detected to be actively triggered by the fault signal of the high-speed turbine generator controller; releasing the energy release action when detecting that the current energy release action is not actively triggered by a fault signal of the high-speed turbine generator controller;

And if the current energy release rotating speed is detected not to be lower than the preset energy release releasing rotating speed threshold, re-entering the energy release supplementing stage.

In a further embodiment, the calculation formula of the single loop current ratio duty cycle is:

N _current ＝100-(i _rms -i _rms-th )×K _current

wherein N is _current Representing a single loop current proportional duty cycle; i.e _rms The energy release loop current value of any loop in the release loops is represented; i.e _rms-th Representing a preset allowable maximum current value for any one of the bleeder circuits; k (K) _current Representing a single loop current duty cycle calculation coefficient;

the calculation formula of the single-loop temperature proportion duty ratio is as follows:

N _temp ＝min[100-(T-T _th )×K _temp ,100-(k _temp -k _temp-th )×K _ktemp ]

wherein N is _temp Representing a single loop temperature proportional duty cycle; t represents the power resistance temperature value of any one of the bleeder circuits; t (T) _th Representing a preset allowable maximum temperature value of any one of the bleeder circuits; k (K) _temp Representing the rising slope of the power resistance temperature value of any one of the bleeder circuits; k (k) _temp-th Representing a preset allowable power resistor temperature rising slope threshold value of any one of the bleeder circuits; k (K) _ktemp Representing a single loop temperature duty cycle calculation coefficient;

the calculation formula of the single loop power proportion duty ratio is as follows:

N _power ＝100-(P-P _th )×K _power

wherein N is _power Representing a single loop power ratio duty cycle; p represents the current bleed-off power value; p (P) _th Representing a preset allowable maximum bleed power value; k (K) _power Representation ofThe single loop power duty cycle calculates the coefficient.

In a further embodiment, the calculation formula of the current bleed-off power value is:

wherein,

wherein P represents the current bleed-off power value; i.e _rms Representing the current effective value of any one of the bleeder circuits; r represents the bleeder resistance value of any one of the bleeder circuits; n represents the number of samples; i.e _x A current sample representing any one of the bleeder circuits; f represents the generator operating frequency; Δt represents the sampling time interval.

In a second aspect, the present invention provides an energy bleed control method for an aircraft high speed turbine generator, to which the energy bleed control apparatus for an aircraft high speed turbine generator as described above is applied, the method comprising the steps of:

detecting the output voltage of the high-speed turbine generator and the current of the energy release loop to obtain corresponding output voltage value of the generator and current value of the energy release loop;

and when the high-speed turbine generator normally operates, the energy release loop is controlled to be in an open circuit state, and when the energy release action is judged to be actively or passively triggered according to the output voltage value of the generator, the energy release loop is controlled to enter a quick energy release stage, and in the quick energy release stage, if the supplementary energy release trigger signal is detected, the energy release loop jumps to the supplementary energy release stage to perform the energy release action.

The invention provides an energy release control device and method for an aviation high-speed turbine generator, wherein the device comprises an energy release loop, a detection circuit and an energy release controller; one end of the detection circuit is connected to an output terminal of the high-speed turbine generator, the other end of the detection circuit is connected to the rectifier through the energy release loop and the energy release controller in sequence, and the other end of the detection circuit is also directly connected with the energy release controller; the detection circuit is used for detecting the output voltage of the high-speed turbine generator and the current of the energy leakage loop; the energy release controller is used for controlling the energy release loop to be in an open circuit state when the high-speed turbine generator normally operates, entering a quick energy release stage when judging that the energy release action is actively or passively triggered according to the output voltage value of the generator, and jumping to the supplementary energy release stage to perform the energy release action if the supplementary energy release trigger signal is detected in the quick energy release stage. Compared with the prior art, the device adopts the power electronic mode to carry out energy consumption to aviation high-speed turbine generator rotor, eliminates the galloping risk, and need not mechanical rotating parts, has simplified device structure greatly, has reduced device quality, and maintainability is strong, and can be when not acting with power generation system disconnection completely, does not influence generating efficiency, guarantees the safe operation of turbine engine and generator.

Drawings

FIG. 1 is a schematic diagram of a conventional high-speed generator system provided by an embodiment of the present invention;

FIG. 2 is a block diagram of an energy bleed control apparatus for an aeronautical high-speed turbine generator provided in an embodiment of the present invention;

FIG. 3 is a schematic diagram of a control flow of the energy release controller according to an embodiment of the present invention;

fig. 4 is a schematic flow diagram of an energy bleed control method for an aeronautical high-speed turbine generator according to an embodiment of the present invention.

Detailed Description

The following examples are given for the purpose of illustration only and are not to be construed as limiting the invention, including the drawings for reference and description only, and are not to be construed as limiting the scope of the invention as many variations thereof are possible without departing from the spirit and scope of the invention.

Fig. 1 is a schematic structural diagram of a conventional high-speed generator system, in fig. 1, a turbine engine drives a generator to rotate, electric energy generated by the generator is transmitted to a rectifier through a generator terminal to rectify, then direct current is input to a load, under normal operation conditions, energy of the turbine engine and the generator is balanced, and therefore the rotation speed is kept stable, however, under certain special conditions (for example, a break fault occurs on a load side), the direct current load is suddenly cut off, so that the generator idles, at this time, the response speed of the turbine engine is slower, and the output cannot be immediately reduced or cut off, so that the rotation speeds of the turbine engine and the generator are rapidly increased, even the maximum bearing rotation speeds of the generator and the turbine engine are exceeded, a galloping accident is caused, and finally damage to the prime mover and the generator is caused, in order to solve the technical problem, and thus, the safe operation of the turbine engine and the generator is ensured. The energy release loop 11, the detection circuit 12 and the energy release controller 13; one end of the detection circuit is connected to an output terminal of the high-speed turbine generator, the other end of the detection circuit is connected to the rectifier through the energy release loop and the energy release controller in sequence, and the other end of the detection circuit is also directly connected with the energy release controller.

In this embodiment, the energy release circuit 11 includes at least three circuits, each circuit including a power switch 111, a power resistor 112, a temperature sensor 113, and a heat dissipation module 114; the grid electrode of each power switch is connected with the energy release controller, the source electrode of each power switch is connected to a high-speed turbine generator terminal through the detection circuit, and the drain electrode of each power switch is connected with each power resistor in the power resistor module in a one-to-one correspondence manner, so that each power resistor is connected to an output terminal of the generator through the power switch; each power resistor is connected with a temperature sensor in a one-to-one correspondence manner, and the power resistors in all loops are connected in a star connection manner, namely, the tail ends of the power resistors in all loops are connected together through cables; the heat dissipation module is connected with the energy release controller, and the heat dissipation module can comprise a heat dissipation fan.

When the energy release control device is applied to a three-phase system, the high-speed turbine generator outputs three-phase voltage signals, the three loops of the energy release loop comprise power switches, power resistors, temperature sensors and heat dissipation modules, the temperature sensors are arranged on the outer sides of the power resistors so as to detect temperature rise of the power resistors through the temperature sensors, in the embodiment, heat dissipation power and resistance values of the power resistors are selected according to parameters such as generator power, rotating speed and inertia, the power resistors can bear higher power within a certain time, meanwhile, the resistance values of the power resistors are not excessively large, so that enough power is guaranteed to flow through the power resistors, meanwhile, the power switches preferentially adopt full-control type power devices, and MOSFET power devices or IGBT power devices can be selected according to system power levels and voltage levels.

In this embodiment, the detection circuit is configured to detect an output voltage of the high-speed turbine generator and a current of the energy release loop, obtain a corresponding generator output voltage value and an energy release loop current value, and send the generator output voltage value and the energy release loop current value to the energy release controller.

The detection circuit comprises a current sensor arranged between the energy leakage loop and the phase line of the generator so as to detect the current flowing through each power resistor through the current sensor to obtain the current value of the energy leakage loop, and meanwhile, the detection circuit is provided with a voltage detection circuit at the output terminal side of the high-speed turbine generator so as to use the voltage detection circuit for detecting the voltage on the output line of the high-speed turbine generator and use the output voltage for the subsequent rotating speed detection process.

In this embodiment, the energy release controller is configured to control, when the high-speed turbine generator is operating normally, the energy release loop to be in an open-circuit state, and when it is determined that the energy release action is triggered actively or passively according to the output voltage value of the generator, control the energy release loop to enter a fast energy release stage, and in the fast energy release stage, if the supplementary energy release trigger signal is detected, jump to the supplementary energy release stage to perform the energy release action.

Specifically, the energy discharging controller is connected with the current sensor, the voltage detection circuit and the temperature sensor of the energy discharging loop and is used for receiving data acquired by the current sensor, the voltage detection circuit and the temperature sensor, the energy discharging controller is mainly used for controlling the operation of the energy discharging control device and mainly comprises a main control unit, a driving unit, a detection unit and a communication unit, wherein the main control unit is used for realizing the energy discharging action of the rapid energy discharging stage and the supplementary energy discharging stage, the driving unit is connected with three power switches of the energy discharging loop, the driving unit is used for sending PWM control signals output by the energy discharging controller to the power switches so as to drive the power switches to switch, and the communication unit is used for communicating with the high-speed turbine generator controller.

When the high-speed turbine generator normally operates, all the power resistors should be disconnected from the high-speed turbine generator, the energy release control device operates in a fault-free mode in a default state after being started, at this time, the energy release controller outputs a PWM control signal with a duty ratio of 0% to the energy release loop, so that the power switch keeps an open state, as shown in fig. 3, the energy release controller in this embodiment enters a fast energy release stage when the energy release controller triggers an energy release action in an active mode or triggers an energy release action in a passive mode, the active trigger and the passive trigger are not associated with each other, and can be triggered independently, any condition is satisfied, and an energy release action starting signal is sent to the high-speed turbine generator controller through the communication unit, wherein the active trigger energy release action can be realized by the communication unit of the energy release controller receiving externally sent energy release instructions, and the following active trigger energy release action judging process can also be adopted, and the active trigger energy release action judging process is as follows:

Because the energy leakage controller and the generator controller can communicate in real time to acquire running data such as the rotating speed, the load power and the like of the generator, when the energy leakage controller acquires the running data of the high-speed turbine generator returned by the high-speed turbine generator controller, the running data of the high-speed turbine generator is detected, and when any triggering condition meeting the active triggering condition of the leakage is detected according to the running data of the high-speed turbine generator or a fault signal of the high-speed turbine generator controller is received, the active triggering energy leakage action is judged; the active triggering conditions of the discharging comprise triggering conditions that the rising slope of the rotating speed of the generator exceeds a preset allowable rising slope threshold, triggering conditions that the rotating speed of the generator exceeds a preset allowable maximum rotating speed threshold and the falling slope of the rectifying output power of the generator exceeds a preset running power falling slope threshold; when the generator rotating speed is detected to rise rapidly and exceed a preset allowable rising slope threshold or exceed an allowable maximum rotating speed threshold according to the high-speed turbine generator operating data, or the generator rectifying output power is detected to fall rapidly and exceed a preset operating power falling slope threshold, or a fault signal returned by a high-speed turbine generator controller is detected, the energy release control device is actively triggered to act, and meanwhile, the heat dissipation module is enabled to start heat dissipation.

The judging process of the passive triggering energy release action is as follows: the energy release controller calculates and obtains the estimated rotating speed of the generator according to the output voltage value of the generator and the number of poles of the generator which are obtained in advance, and judges that the passive trigger energy release acts when the estimated rotating speed of the generator is detected to exceed a preset maximum rotating speed threshold value or the rising slope of the estimated rotating speed of the generator exceeds a preset rising slope threshold value, and simultaneously enables the heat dissipation module to dissipate heat, and in the embodiment, the obtaining process of the estimated rotating speed of the generator specifically comprises the following steps:

detecting the generator output voltage values of all phases output by the high-speed turbine generator, starting an energy release controller timer when the rising edge zero crossing point of the generator output voltage value of any one phase is detected, and taking the phase as a counting phase;

the energy leakage controller continues waiting, and records the current energy leakage controller timer count value as a first count value when detecting that the generator output voltage value of the counting phase falls along a zero crossing point;

the energy leakage controller continues waiting, and records the current energy leakage controller timer count value as a second count value when detecting that the counting phase generates the rising edge zero crossing point of the generator output voltage value again;

Obtaining phase sine voltage period time according to the second count value and a preset timer count time interval;

obtaining the phase electric frequency of the generator according to the phase sinusoidal voltage cycle time;

according to the generator phase electric frequency and the generator pole number, calculating to obtain the generator rotating speed of the corresponding phase;

and calculating the average value of the generator rotating speeds of all phases to obtain the estimated rotating speed of the generator.

The energy discharging controller calculates the estimated rotating speed of the generator according to the detected generator line voltage and the pre-stored generator parameters, when the energy discharging control device is applied to a three-phase system, the generator line voltage is three-phase alternating current, the three-phase voltage enters an analog-digital conversion unit of the energy discharging controller after being attenuated by a voltage dividing resistor and is converted into three-phase voltage digital quantity to be stored, the energy discharging controller detects the three-phase voltage digital quantity in real time, when one phase voltage is detected to be changed from a negative value to a positive value (rising edge zero crossing point), a timer of the energy discharging controller is started, then the energy discharging controller continues waiting, when the phase voltage is detected to be changed from a positive value to a negative value (falling edge zero crossing point), and the current timer count value of the energy discharging controller is recorded to be a first count value c _t1 The method comprises the steps of carrying out a first treatment on the surface of the Then, the energy discharging controller continues waiting, when detecting that the phase voltage is changed from a negative value to a positive value again (rising edge zero crossing point), the current energy discharging controller timer count value is recorded as a second count value c _t2 Thereby, according to the second count value c _t2 And counting the time interval delta t' by a timer to obtain the phase sine before the phase is equivalentTime t of voltage cycle ₁ The specific calculation formula is as follows:

t ₁ ＝c _t2 ×Δt′

according to the phase sine voltage period time t before the phase ₁ Calculating the phase electric frequency f of the generator of the phase _p1 The method comprises the following steps:

according to the phase-to-electric frequency f of the generator _p1 And the number of generator poles p, calculating to obtain the generator rotating speed n of the corresponding phase _p1 The specific calculation formula is as follows:

after sampling all phase lines of the generator and calculating the rotation speed of the generator, resetting the timer count of the energy release controller, restarting the timer, continuously calculating the next cycle frequency, calculating the average value of the rotation speeds of the generator of all phase lines within a period of time, and finally outputting the estimated rotation speed of the generator.

In this embodiment, the energy release action is divided into two phases, the first phase is a fast energy release phase, the second phase is a supplementary energy release phase, after the energy release action is actively or passively triggered, the energy release controller firstly enters the fast energy release phase, under this phase, the energy release controller outputs a PWM control signal with a duty ratio of 100% to the energy release loop, at this time, the energy release controller is approximately equal to a power resistor and directly connected to an output terminal of the generator in parallel, fast energy release is performed, and under the condition that a certain condition is met is detected in the fast energy release process, the energy release controller jumps to the supplementary energy release phase, in the supplementary energy release phase, the energy release controller outputs a PWM signal with a variable duty ratio to the energy release loop, at this time, the energy release power is reduced, wherein the specific implementation process of the fast energy release phase is as follows:

When judging that the energy release action is actively or passively triggered, the energy release controller sends a full duty ratio PWM control signal to the energy release loop so as to drive the power switch to be conducted through the full duty ratio PWM control signal, and the power generator output voltage value and the energy release loop current value of any loop in the energy release loop are obtained in real time through a detection circuit, and meanwhile, the power resistance temperature value sent by each loop of the energy release loop is received;

according to the output voltage value of the generator and the current value of the energy release loop, calculating to obtain the current release power value of any loop in the release loops;

in any loop of the release loop, when any numerical value of the release loop current value, the power resistance temperature value and the current release power value meets a supplementary release trigger condition, a supplementary release trigger signal is generated, and the system is forced to enter a supplementary release stage according to the supplementary release trigger signal;

when the current value of the energy release loop, the temperature value of the power resistor and the current release power value do not meet the supplementary energy release triggering condition, acquiring the current energy release rotating speed from the high-speed turbine generator or calculating according to the output voltage value of the generator and the current energy release loop to obtain the current energy release rotating speed, if the current energy release rotating speed is detected to be lower than the preset energy release releasing rotating speed threshold value, judging whether the current energy release action is the energy release action actively triggered by the fault signal of the high-speed turbine generator controller, and when the current energy release action is detected to be actively triggered by the fault signal of the high-speed turbine generator controller, continuously releasing energy until the high-speed turbine generator is stopped; releasing the energy release action when detecting that the current energy release action is not actively triggered by a fault signal of the high-speed turbine generator controller;

If the current energy release rotating speed is detected not to be lower than the preset energy release releasing rotating speed threshold, the rapid energy release stage is re-entered, and a full duty ratio signal is sent to the energy release loop through the energy release controller.

In this embodiment, the supplemental energy release triggering condition specifically includes:

the triggering condition that the current value of the energy release loop of any loop exceeds a preset allowable maximum current value and the running time exceeding the preset allowable maximum current value exceeds a preset overcurrent running time;

the triggering condition that the temperature value of the power resistor of any one of the bleeder circuits exceeds a preset allowable maximum temperature value and the running time exceeding the preset allowable maximum temperature value exceeds a preset overtemperature running time;

a triggering condition that the rising slope of the power resistance temperature value of any one of the bleeder circuits exceeds a preset allowable power resistance temperature rising slope threshold value and the running time exceeding the preset allowable power resistance temperature rising slope threshold value exceeds a preset overtemperature slope running time;

the current bleed power value of any one of the bleed circuits exceeds a preset allowed maximum bleed power value and the run time exceeding the preset allowed maximum bleed power value exceeds a trigger condition of a preset overpower run time.

For the calculation process of the current discharge power value, the energy discharge controller samples the current of each loop of the discharge loops at preset sampling time intervals, and the current obtained by sampling each time of one loop is i _x Wherein x=1, 2, … n; in this embodiment, the estimated rotation speed of the generator is obtained by using a program of the rotation speed calculating part, so that the operation frequency f of the generator is obtained according to the estimated rotation speed of the generator, and the number of samples n required by the energy release controller is as follows:

based on the number of samples and the current sample value i _x Calculating to obtain the effective current value i of the loop _rms The method specifically comprises the following steps:

according to the current effective value of the loop and the resistance value of the bleeder resistor stored in the bleeder controller, the current bleeder power value is calculated, and the specific calculation formula is as follows:

wherein P represents the current bleed-off power value; i.e _rms Representing the current effective value of any one of the bleeder circuits; r represents the bleeder resistance value of any one of the bleeder circuits.

When a supplementary energy release trigger signal is detected, a supplementary energy release stage is started, wherein the supplementary energy release stage specifically comprises the following steps:

in all loops in the bleeder loop, calculating to obtain single-loop current proportion duty ratios of all loops according to the current value of the energy-discharging loop and a preset allowable maximum current value, calculating to obtain single-loop temperature proportion duty ratios of all loops according to the power resistance temperature value, the preset allowable maximum temperature value, the power resistance temperature value rising slope and the preset allowable power resistance temperature rising slope threshold, and calculating to obtain single-loop power proportion duty ratios of all loops according to the current bleeder power value and the preset allowable maximum bleeder power value;

In any one of the bleeder circuits, screening a single-circuit duty ratio minimum value from the single-circuit current proportion duty ratio, the single-circuit temperature proportion duty ratio and the single-circuit power proportion duty ratio corresponding to the bleeder circuits, generating a single-circuit variable duty ratio PWM signal according to the single-circuit duty ratio minimum value, and transmitting the single-circuit variable duty ratio PWM signal to the energy-dissipating circuit;

acquiring the current energy release rotating speed from the high-speed turbine generator or calculating according to the output voltage value of the generator and the current of the current energy release loop to obtain the current energy release rotating speed, judging whether the current energy release action is actively triggered by a fault signal of the high-speed turbine generator or not if the current energy release rotating speed is detected to be lower than a preset energy release releasing rotating speed threshold value, and continuously releasing energy until the high-speed turbine generator is stopped when the current energy release action is detected to be actively triggered by the fault signal of the high-speed turbine generator controller; releasing the energy release action when detecting that the current energy release action is not actively triggered by a fault signal of the high-speed turbine generator controller;

and if the current energy release rotating speed is detected not to be lower than the preset energy release releasing rotating speed threshold, re-entering the energy release supplementing stage.

Specifically, in the energy supplementing and discharging stage, the PWM duty ratio is dynamically reduced according to the ratio of the excess current of each loop in the discharging loop until the current value of the loop does not exceed the maximum allowable current value of the power element, and the calculation formula of the single-loop current ratio duty ratio is as follows:

N _current ＝100-(i _rms -i _rms - _th )×K _current

wherein N is _current Representing a single loop current proportional duty cycle; i.e _rms The energy release loop current value of any loop in the release loops is represented; i.e _rms - _th Representing a preset allowable maximum current value for any one of the bleeder circuits; k (K) _current Representing a single loop current duty cycle calculation coefficient which is comprehensively determined by combining the generator inductance, the bleeder resistor size and the nominal maximum current of the power switch with experiments,

and in the energy supplementing and discharging stage, the PWM duty ratio is dynamically reduced according to the proportion of the excess temperature of each loop in the discharging loop until the temperature slope or the resistance temperature of the loop does not exceed a threshold value, wherein the calculation formula of the single-loop temperature proportion duty ratio is as follows:

N _temp ＝min[100-(T-T _th )×K _temp ,100-(k _temp -k _temp-th )×K _ktemp ]

wherein N is _temp Representing a single loop temperature proportional duty cycle; t represents the power resistance temperature value of any one of the bleeder circuits; t (T) _th Representing a preset allowable maximum temperature value of any one of the bleeder circuits; k (K) _temp The rising slope of the power resistance temperature value of any loop in the bleeder loop is represented, and the rising slope of the power resistance temperature value is comprehensively determined through the nominal heat dissipation power of the power resistance and a combination test; k (k) _temp-th Representing any one of the bleed circuitsThe preset allowable power resistor temperature rising slope threshold value of the loop; k (K) _ktemp And the single-loop temperature duty ratio calculation coefficient is expressed, and is determined comprehensively through nominal heat dissipation power of the power resistor and a combination test.

When the discharge power exceeds the allowable threshold, the PWM duty ratio is dynamically reduced in the supplementary energy discharge stage according to the ratio of the excess power until the discharge power is lower than the threshold, and the calculation formula of the single-loop power ratio duty ratio is as follows:

N _power ＝100-(P-P _th )×K _power

wherein N is _power Representing a single loop power ratio duty cycle; p represents the current bleed-off power value; pth represents a preset allowable maximum relief power value; k (K) _power And representing a single loop power duty cycle calculation coefficient which is determined comprehensively by combining the nominal heat dissipation power of the power resistor and the test.

The above detection of current, temperature and discharge power is synchronously performed after the start of the discharge operation of the discharge controller, the variable duty PWM signal of each loop finally output by the discharge controller is the lowest value of the result of the PWM duty ratio screened out from the detection results of the current, temperature and discharge power of each loop, the discharge controller performs the above three (current, temperature and discharge power) duty ratio calculation methods for each loop, the final output duty ratio of each loop takes the minimum value of the results of the above three calculation methods, it is required to say that when the current discharge speed (communication or line voltage detection) is detected to be lower than the preset discharge speed threshold, the discharge operation is released, the discharge controller outputs a PWM signal with 0% duty ratio, and at the same time, the discharge controller returns to the standby mode, continues to detect data such as the rotation speed and the discharge power, and prepares the next discharge operation, and at the same time, the communication unit generator controller has stored a release energy rotation speed threshold, if the discharge operation is not triggered by the preset release operation mode, the discharge operation is stopped, and the discharge operation is released by the forced, and the discharge operation is released when the release operation is stopped.

The embodiment of the invention provides an energy release control device for an aviation high-speed turbine generator, which comprises an energy loop, a detection circuit and an energy release controller, wherein the energy loop is connected with the detection circuit; one end of the detection circuit is connected to an output terminal of the high-speed turbine generator, the other end of the detection circuit is connected to the rectifier through the energy release loop and the energy release controller in sequence, and the other end of the detection circuit is also directly connected with the energy release controller; the detection circuit is used for detecting the output voltage of the high-speed turbine generator and the current of the energy leakage loop; the energy release controller is used for controlling the energy release loop to be in a broken state when the high-speed turbine generator normally operates, controlling the energy release loop to enter a quick energy release stage when the active or passive triggering energy release action is judged according to the output voltage value of the generator, and jumping to the supplementary energy release stage to perform the energy release action if the supplementary energy release trigger signal is detected in the quick energy release stage. Compared with the prior art, the energy release control device provided by the embodiment can rapidly respond to the period from the occurrence of faults to the reduction of the output of the turbine engine through the control circuit and the power electronic switch, avoids the risk of galloping of the generator, ensures the stability and safety of a power generation system, does not need to additionally increase mechanical rotating parts, has light weight and good maintainability, ensures that the device is more compact, portable, easy to install and maintain, and simultaneously ensures complete disconnection from the power generation system when not acting and does not influence the power generation efficiency.

In one embodiment, as shown in fig. 4, an embodiment of the present invention provides an energy release control method for an aircraft high-speed turbine generator, to which the energy release control device for an aircraft high-speed turbine generator as described above is applied, the method including the steps of:

s1, detecting output voltage of a high-speed turbine generator and current of an energy release loop to obtain a corresponding generator output voltage value and an energy release loop current value;

s2, when the high-speed turbine generator normally operates, the energy release loop is controlled to be in an open circuit state, and when the energy release action is judged to be actively or passively triggered according to the output voltage value of the generator, the energy release loop is controlled to enter a quick energy release stage, and in the quick energy release stage, if the supplementary energy release trigger signal is detected, the energy release action is carried out by jumping to the supplementary energy release stage.

It should be noted that, the sequence number of each process does not mean that the execution sequence of each process is determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.

Specific limitations regarding a method of energy bleed control for an aircraft high speed turbine generator may be found in the above description of a system of energy bleed control for an aircraft high speed turbine generator, and will not be described in detail herein. Those of ordinary skill in the art will appreciate that the various modules and steps described in connection with the embodiments disclosed herein may be implemented as hardware, software, or a combination of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The embodiment of the invention provides an energy release control method for an aviation high-speed turbine generator, which comprises the steps of detecting the output voltage of the high-speed turbine generator and the current of an energy release loop, and obtaining a corresponding generator output voltage value and an energy release loop current value; and when the high-speed turbine generator normally operates, the energy release loop is controlled to be in an open circuit state, and when the energy release action is judged to be actively or passively triggered according to the output voltage value of the generator, the energy release loop is controlled to enter a quick energy release stage, and in the quick energy release stage, if the supplementary energy release trigger signal is detected, the energy release loop jumps to the supplementary energy release stage to perform the energy release action. The embodiment of the invention can effectively discharge the energy of the generator rotor in a period from the occurrence of faults to the reduction of the output of the turbine engine, discharge the energy of the generator rotor to a safe range in a short time, has quick response, avoids the risk of galloping of the generator, ensures the stability and safety of a power generation system, does not need additional mechanical rotating parts, has the characteristics of more compact and portable device and easy installation and maintenance, is completely disconnected from the power generation system when not in action, does not influence the power generation efficiency, ensures that the power generation system can keep high efficiency when in normal work, and simultaneously ensures that the power generation system is not negatively influenced when not in action, and has wide application prospect.

The foregoing examples represent only a few preferred embodiments of the present application, which are described in more detail and are not thereby to be construed as limiting the scope of the invention. It should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and substitutions should also be considered to be within the scope of the present application. Therefore, the protection scope of the patent application is subject to the protection scope of the claims.

Claims (10)

1. An energy bleed control device for an aircraft high speed turbine generator, the energy bleed control device being connected in parallel to a line connecting the high speed turbine generator with a rectifier, the energy bleed control device comprising: the energy release circuit, the detection circuit and the energy release controller; one end of the detection circuit is connected to an output terminal of the high-speed turbine generator, the other end of the detection circuit is connected to the rectifier through the energy release loop and the energy release controller in sequence, and the other end of the detection circuit is also directly connected with the energy release controller;

the detection circuit is used for detecting the output voltage of the high-speed turbine generator and the current of the energy release loop, obtaining a corresponding generator output voltage value and an energy release loop current value, and sending the generator output voltage value and the energy release loop current value to the energy release controller;

And the energy release controller is used for controlling the energy release loop to be in an open circuit state when the high-speed turbine generator normally operates, controlling the energy release loop to enter a quick energy release stage when the active or passive triggering energy release action is judged according to the output voltage value of the generator, and jumping to the supplementary energy release stage to perform the energy release action if the supplementary energy release trigger signal is detected in the quick energy release stage.

2. An energy bleed control apparatus for an aircraft high speed turbine generator as in claim 1, wherein: the energy release loop comprises at least three loops, and each loop comprises a power switch, a power resistor, a temperature sensor and a heat radiation module; the power resistors in all the loops are connected in a star connection mode;

the grid electrode of each power switch is connected with the energy release controller, the source electrode of each power switch is connected to a high-speed turbine generator terminal through the detection circuit, and the drain electrode of each power switch is connected with each power resistor in the power resistor module in a one-to-one correspondence manner; and each power resistor is connected with a temperature sensor in one-to-one correspondence, and the heat dissipation module is connected with the energy release controller.

3. An energy bleed control apparatus for an aircraft high speed turbine generator as in claim 1, wherein said active or passive trigger bleed action determination is:

acquiring high-speed turbine generator operation data, detecting the high-speed turbine generator operation data, and judging the action of actively triggering leakage energy when any triggering condition meeting the active triggering condition of leakage is detected according to the high-speed turbine generator operation data or a fault signal of a high-speed turbine generator controller is received; the active triggering conditions of the discharging comprise triggering conditions that the rising slope of the rotating speed of the generator exceeds a preset allowable rising slope threshold, triggering conditions that the rotating speed of the generator exceeds a preset allowable maximum rotating speed threshold and the falling slope of the rectifying output power of the generator exceeds a preset running power falling slope threshold;

and acquiring the estimated rotating speed of the generator according to the output voltage value of the generator and the number of poles of the generator acquired in advance, and judging that the energy release action is passively triggered when the estimated rotating speed of the generator is detected to exceed a preset maximum allowable rotating speed threshold or the rising slope of the estimated rotating speed of the generator exceeds a preset rising slope threshold.

4. An energy bleed control device for an aeronautical high speed turbine generator as claimed in claim 3, wherein the process of obtaining the estimated rotation speed of the generator is in particular:

detecting the generator output voltage values of all phases output by the high-speed turbine generator, starting an energy release controller timer when the rising edge zero crossing point of the generator output voltage value of any one phase is detected, and taking the phase as a counting phase;

the energy leakage controller continues waiting, and records the current energy leakage controller timer count value as a first count value when detecting that the generator output voltage value of the counting phase falls along a zero crossing point;

the energy leakage controller continues waiting, and records the current energy leakage controller timer count value as a second count value when detecting that the counting phase generates the rising edge zero crossing point of the generator output voltage value again;

obtaining phase sine voltage period time according to the second count value and a preset timer count time interval;

obtaining the phase electric frequency of the generator according to the phase sinusoidal voltage cycle time;

according to the generator phase electric frequency and the generator pole number, calculating to obtain the generator rotating speed of the corresponding phase;

And calculating the average value of the generator rotating speeds of all phases to obtain the estimated rotating speed of the generator.

5. An energy bleed control device for an aeronautical high-speed turbogenerator according to claim 2, characterized in that said rapid energy bleed phase is in particular:

when judging that the energy release action is actively or passively triggered, the energy release controller sends a full duty ratio PWM control signal to the energy release loop so as to drive the power switch to be conducted through the full duty ratio PWM control signal, and the power generator output voltage value and the energy release loop current value of any loop in the energy release loop are obtained in real time through a detection circuit, and meanwhile, the power resistance temperature value sent by each loop of the energy release loop is received;

according to the output voltage value of the generator and the current value of the energy release loop, calculating to obtain the current release power value of any loop in the release loops;

in any one of the bleeder circuits, when any one of the bleeder circuit current value, the power resistance temperature value and the current bleeder power value meets a supplemental bleeder trigger condition, generating a supplemental bleeder trigger signal;

when the current value of the energy release loop, the temperature value of the power resistor and the current release power value do not meet the supplementary energy release triggering condition, acquiring the current energy release rotating speed from the high-speed turbine generator or calculating according to the output voltage value of the generator and the current energy release loop to obtain the current energy release rotating speed, if the current energy release rotating speed is detected to be lower than the preset energy release releasing rotating speed threshold value, judging whether the current energy release action is the energy release action actively triggered by the fault signal of the high-speed turbine generator controller, and when the current energy release action is detected to be actively triggered by the fault signal of the high-speed turbine generator controller, continuously releasing energy until the high-speed turbine generator is stopped; releasing the energy release action when detecting that the current energy release action is not actively triggered by a fault signal of the high-speed turbine generator controller;

If the current energy release rotating speed is detected not to be lower than the preset energy release releasing rotating speed threshold, the rapid energy release stage is re-entered, and a full duty ratio signal is sent to the energy release loop through the energy release controller.

6. An energy bleed control device for an aeronautical high speed turbine generator as claimed in claim 5, wherein said supplemental bleed trigger condition comprises in particular:

the triggering condition that the current value of the energy release loop of any loop exceeds a preset allowable maximum current value and the running time exceeding the preset allowable maximum current value exceeds a preset overcurrent running time;

the triggering condition that the temperature value of the power resistor of any one of the bleeder circuits exceeds a preset allowable maximum temperature value and the running time exceeding the preset allowable maximum temperature value exceeds a preset overtemperature running time;

a triggering condition that the rising slope of the power resistance temperature value of any one of the bleeder circuits exceeds a preset allowable power resistance temperature rising slope threshold value and the running time exceeding the preset allowable power resistance temperature rising slope threshold value exceeds a preset overtemperature slope running time;

the current bleed power value of any one of the bleed circuits exceeds a preset allowed maximum bleed power value and the run time exceeding the preset allowed maximum bleed power value exceeds a trigger condition of a preset overpower run time.

7. An energy bleed control device for an aeronautical high-speed turbine generator as claimed in claim 6, wherein said supplementary bleed phase is in particular:

when a supplementary energy discharging trigger signal is detected, a supplementary energy discharging stage is started, in all loops in the discharging loop, single loop current proportion duty ratio of each loop is calculated according to the energy discharging loop current value and a preset allowable maximum current value, single loop temperature proportion duty ratio of each loop is calculated according to the power resistance temperature value, the preset allowable maximum temperature value, the power resistance temperature value rising slope and the preset allowable power resistance temperature rising slope threshold, and single loop power proportion duty ratio of each loop is calculated according to the current discharging power value and the preset allowable maximum discharging power value;

in any one of the bleeder circuits, screening a single-circuit duty ratio minimum value from the single-circuit current proportion duty ratio, the single-circuit temperature proportion duty ratio and the single-circuit power proportion duty ratio corresponding to the bleeder circuits, generating a single-circuit variable duty ratio PWM signal according to the single-circuit duty ratio minimum value, and transmitting the single-circuit variable duty ratio PWM signal to the energy-dissipating circuit;

Acquiring the current energy release rotating speed from the high-speed turbine generator or calculating according to the output voltage value of the generator and the current of the current energy release loop to obtain the current energy release rotating speed, judging whether the current energy release action is actively triggered by a fault signal of the high-speed turbine generator or not if the current energy release rotating speed is detected to be lower than a preset energy release releasing rotating speed threshold value, and continuously releasing energy until the high-speed turbine generator is stopped when the current energy release action is detected to be actively triggered by the fault signal of the high-speed turbine generator controller; releasing the energy release action when detecting that the current energy release action is not actively triggered by a fault signal of the high-speed turbine generator controller;

and if the current energy release rotating speed is detected not to be lower than the preset energy release releasing rotating speed threshold, re-entering the energy release supplementing stage.

8. An energy bleed control apparatus for an aircraft high speed turbine generator as in claim 7, wherein said single loop current proportional duty cycle is calculated as:

N _current ＝100-(i _rms -l _rms-th )×K _current

wherein N is _current Representing a single loop current proportional duty cycle; i.e _rms The energy release loop current value of any loop in the release loops is represented; i.e _rms-th Representing a preset allowable maximum current value for any one of the bleeder circuits; k (K) _current Representing a single loop current duty cycle calculation coefficient;

the calculation formula of the single-loop temperature proportion duty ratio is as follows:

N _temp ＝min[100-(T-T _th )×K _temp ,100-(k _temp -k _temp-th )×K _ktemp ]

wherein N is _temp Representing a single loop temperature proportional duty cycle; t represents the power resistance temperature value of any one of the bleeder circuits; t (T) _th Representing a preset allowable maximum temperature value of any one of the bleeder circuits; k (K) _temp Representing the rising slope of the power resistance temperature value of any one of the bleeder circuits; k (k) _temp-th Representing a preset allowable power resistor temperature rising slope threshold value of any one of the bleeder circuits; k (K) _ktemp Representing a single loop temperature duty cycle calculation coefficient;

the calculation formula of the single loop power proportion duty ratio is as follows:

N _power ＝100-(P-P _th )×K _power

wherein N is _power Representing a single loop power ratio duty cycle; p represents the current bleed-off power value; p (P) _th Representing a preset allowable maximum bleed power value; k (K) _power Representing the single loop power duty cycle calculation coefficient.

9. An energy bleed control device for an aircraft high speed turbine generator as in claim 7, wherein said current bleed power value is calculated as:

wherein,

wherein P represents the current bleed-off power value; i.e _rms Representing the current effective value of any one of the bleeder circuits; r represents the bleeder resistance value of any one of the bleeder circuits; n represents the number of samples; i.e _x Indicating bleed-off circuitA current sample value of any loop; f represents the generator operating frequency; Δt represents the sampling time interval.

10. A method of controlling energy bleed-off for an aircraft high-speed turbine generator, characterized by applying an energy bleed-off control device for an aircraft high-speed turbine generator according to any one of claims 1 to 9, the method comprising the steps of:

detecting the output voltage of the high-speed turbine generator and the current of the energy release loop to obtain corresponding output voltage value of the generator and current value of the energy release loop;

and when the high-speed turbine generator normally operates, the energy release loop is controlled to be in an open circuit state, and when the energy release action is judged to be actively or passively triggered according to the output voltage value of the generator, the energy release loop is controlled to enter a quick energy release stage, and in the quick energy release stage, if the supplementary energy release trigger signal is detected, the energy release loop jumps to the supplementary energy release stage to perform the energy release action.