High dynamic pulsed current generation module, generator and control method thereof

Abstract

The application discloses a high dynamic pulse current generation module, a generator and a control method thereof. Firstly, the application provides two high dynamic pulse current generation modules, the unique internal connection of which makes the working voltage and current of the energy storage capacitor in the module naturally balanced, and at the same time, makes the module have partial power conversion characteristics, thereby improving the efficiency and power density of the module. Then, the application provides a generator realized based on the high dynamic pulse current generation module, the working voltage and current of all capacitors in the generator are still naturally balanced, and the whole generator still has partial power conversion, thereby showing the excellent expandability of the module. Finally, the application provides a control method of the high dynamic pulse current generator, the method can control all modules included in the generator by only sampling the electrical parameters of any one module, thereby further improving the expandability of the generator, reducing the system complexity and improving the stability.

Description

Technical Field

[0001] This invention relates to pulse current generation technology, and more particularly to a high dynamic pulse current generation module, generator and control method thereof. Background Technology

[0002] In recent years, with the rapid development of artificial intelligence technology, the power consumption of data centers has grown rapidly. Among them, the power consumption of graphics processing units (GPUs) is increasing exponentially. In 2020, the power consumption of mainstream GPUs was only a few hundred watts. From 2024 to 2026, the power consumption of flagship GPUs such as Blackwell B200 / B300 and Rubin Ultra has reached 1200W-3700W. By 2028, 5kW GPUs will become a reality.

[0003] A joint report by Microsoft, OpenAI, NVIDIA, and other organizations, titled "Power Stabilization for AI Training Datacenters," points out that in large-scale synchronous training tasks, GPUs periodically switch between computationally intensive and communication-synchronous phases. The power consumption of a single GPU fluctuates rapidly between near its thermal design power (TDP) and significantly lower levels. When tens of thousands of GPUs are lockstepped, this fluctuation is amplified to the rack, server room, and even power grid levels. AI data centers are entering a phase that has rarely been adequately discussed in the past: the challenge is no longer just "how high is the average power consumption," but "how fast the load changes."

[0004] Therefore, to avoid the impact of rapid GPU power fluctuations on data center and even power grid stability, the NVIDIA team proposed a solution at the Applied Power Electronics Conference 2026. This involves deploying a buffer module based on a bidirectional converter near the load. This module discharges to replenish energy when the GPU is operating at its TDP (Total Power Required) and stores energy when operating at low power, reducing the current surge to upstream stages. However, active converters have limited dynamic response speeds, and their output power often lags behind the GPU load power pulses. This means that during GPU power switching, some power still directly impacts the upstream energy architecture, reducing the effectiveness of the buffer module. Therefore, the dynamic response speed of the buffer module becomes a core performance indicator.

[0005] To improve the dynamic response speed of converters, magnetically coupled converters have been widely researched and applied. Among them, the papers "Multiphase Lateral Flux Indirect Coupled Inductor for Vertical Power Delivery Voltage Regulator Module" and "Reconfigurable Trans-Inductor Voltage Regulator with Improved Light Load Efficiency in Data Center Applications," published at the *Applied Power Electronics Conference 2025*, both proposed magnetically coupled interleaved bucket converters (IBCs). However, such converters are full-power conversion (FPCs).

[0006] In summary, existing bidirectional current buffer modules suffer from problems such as large active circuit power capacity, low efficiency, poor dynamic response performance, low scalability, and complex control, and can no longer meet the needs of current data centers. Summary of the Invention

[0007] The purpose of this invention is to provide a pulse current generating module, generator, and control method that features small power capacity, high efficiency, high dynamic performance, high scalability, and low control difficulty.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0009] A high-dynamic pulse current generating module includes a first energy storage capacitor C1, a second energy storage capacitor C2, a first switching transistor Q1, a second switching transistor Q2, a third switching transistor Q3, a fourth switching transistor Q4, a first transformer T1, and a second transformer T2, and is provided with a positive external terminal V. + Negative external terminal V - The first modular expansion terminal A and the second modular expansion terminal B;

[0010] In this configuration, the drain of the first switching transistor Q1 is connected to the positive terminal of the first energy storage capacitor C1, and its source is connected to the drain of the second switching transistor Q2. The source of the second switching transistor Q2 is connected to the negative terminal of the first energy storage capacitor C1. The source of the fourth switching transistor Q4 is connected to the negative terminal of the second energy storage capacitor C2, and its drain is connected to the source of the third switching transistor Q3. The positive terminal of the second energy storage capacitor C2 is connected to the drain of the third switching transistor Q3. The positive terminal is connected to an external terminal V. +The connection point between the drain of the first switching transistor Q1 and the positive terminal of the first energy storage capacitor C1, and the external negative terminal V. - The connection point between the source of the fourth switch Q4 and the negative terminal of the second energy storage capacitor C2 is connected. The source and drain of the second switch Q2 are connected to the source and drain of the third switch Q3 through a transformer combination module composed of the first transformer T1 and the second transformer T2. The first modular expansion terminal A and the second modular expansion terminal B are led out from the transformer combination module.

[0011] Furthermore, the first transformer T1 includes a first primary winding L. 1p and the first secondary winding L 1s The second transformer T2 includes a second primary winding L 2p Second secondary winding L 2s The first primary winding L 1p The non-same-name terminal is connected to the drain of the second switch Q2, and the same-name terminal is connected to the drain of the third switch Q3. The first secondary winding L 1s The non-same-name terminal is connected to the source of the third switch Q3, and the same-name terminal is connected to the second primary winding L. 2p Same name terminal, second primary winding L 2p The non-identical terminal is connected to the source of the second switch Q2, and the second secondary winding L 2s The same-named terminal is connected to the first modular expansion terminal A, and the different-named terminal is connected to the second modular expansion terminal B.

[0012] Furthermore, the first transformer T1 includes a first primary winding L. 1p and the first secondary winding L 1s The second transformer T2 includes a second primary winding L 2p Second secondary winding L 2s The first primary winding L 1p The non-same-name terminal is connected to the first modular expansion terminal A, and the same-name terminal is connected to the second secondary winding L. 2s Non-same-name terminals, first secondary winding L 1s The same-name terminal is connected to the drain of the second switch Q2, and the different-name terminal is connected to the drain of the third switch Q3. The second primary winding L 2p The non-same-name terminal is connected to the source of the second switch Q2, and the same-name terminal is connected to the source of the third switch Q3. The second secondary winding L 2s The same-named terminal is connected to the second modular expansion terminal B.

[0013] The present invention also provides a high dynamic pulse current generator, comprising a plurality of the above-described high dynamic pulse current generating modules; wherein,

[0014] The second modular expansion terminal of the previous high dynamic pulse current generator module is connected to the first modular expansion terminal of the next high dynamic pulse current generator module. The positive external terminal V of all high dynamic pulse current generator modules is connected to... + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus;

[0015] The first modular expansion terminal of the first high dynamic pulse current generating module is left floating, and the second modular expansion terminal of the last high dynamic pulse current generating module is left floating.

[0016] The present invention also provides another high dynamic pulse current generator, comprising a plurality of the above-mentioned high dynamic pulse current generating modules and a current acceleration module connected in series, wherein the current acceleration module includes an inductor L c ;in,

[0017] The second modular expansion terminal of the previous high dynamic pulse current generator module is connected to the first modular expansion terminal of the next high dynamic pulse current generator module. The positive external terminal V of all high dynamic pulse current generator modules is connected to... + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus;

[0018] The first modular expansion terminal of the first high dynamic pulse current generation module is connected to the inductor L. c Connect to the second modular expansion terminal of the last high dynamic pulse current generation module.

[0019] The present invention also provides another high dynamic pulse current generator, comprising a plurality of the above-mentioned high dynamic pulse current generating modules and a current acceleration module connected in series, wherein the current acceleration module includes an inductor L c First auxiliary switch Q a1 Second auxiliary switch Q a2 And auxiliary capacitor C a ;

[0020] The second modular expansion terminal of the previous high dynamic pulse current generator module is connected to the first modular expansion terminal of the next high dynamic pulse current generator module. The positive external terminal V of all high dynamic pulse current generator modules is connected to... + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus;

[0021] The first modular expansion terminal of the first high dynamic pulse current generation module is connected to the inductor L. c One end of the inductor Lc is connected to the first auxiliary switch Q. a1 Source, first auxiliary switch Qa1 The drain is connected to the auxiliary capacitor C a Positive terminal, auxiliary capacitor C a The negative terminal is connected to the second auxiliary switch at Q. a2 Source, second auxiliary switch Q a2 The drain is connected to the inductor L c The other end is connected to the first auxiliary switch Q. a1 The source connection point, the last high dynamic pulse current generator module's second modular expansion terminal is connected to the positive terminal of the power bus, and the auxiliary capacitor C a Negative electrode and second auxiliary switch Q a2 The source connection point is connected to the negative terminal of the power bus.

[0022] The present invention also provides another high dynamic pulse current generator, comprising a plurality of the above-mentioned high dynamic pulse current generating modules and a current acceleration module connected in series, wherein the current acceleration module includes an inductor L c First auxiliary switch Q a1 Second auxiliary switch Q a2 The third auxiliary switch Q a3 Fourth auxiliary switch Q a4 And auxiliary capacitor C a ;

[0023] The second modular expansion terminal of the previous high dynamic pulse current generator module is connected to the first modular expansion terminal of the next high dynamic pulse current generator module. The positive external terminal V of all high dynamic pulse current generator modules is connected to... + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus;

[0024] The first modular expansion terminal of the first high dynamic pulse current generation module is connected to the inductor L. c One end, inductor L c The other end is connected to the first auxiliary switch Q. a1 Source, first auxiliary switch Q a1 The drain is connected to the third auxiliary switch Q. a3 Drain, third auxiliary switch Q a3 The source is connected to the fourth auxiliary switch Q. a4 Drain, fourth auxiliary switch Q a4 The source is connected to the second auxiliary switch Q. a2 Source, second auxiliary switch Q a2 The drain is connected to the inductor L c The other end is connected to the first auxiliary switch Q. a1 The source connection point, the second modular extension terminal of the last high dynamic pulse current generation module, is connected to the third auxiliary switch Q. a3Source and fourth auxiliary switch Q a4 The connection point of the drain, and the auxiliary capacitor C a The positive terminal is connected to the first auxiliary switch Q. a1 Drain and third auxiliary switch Q a3 The connection point of the drain electrode, C a The negative terminal is connected to the second auxiliary switch Q. a2 Source and fourth auxiliary switch Q a4 The connection point of the source.

[0025] The present invention also provides another high dynamic pulse current generator, comprising a plurality of the above-mentioned high dynamic pulse current generating modules and a current acceleration module connected in series, wherein the current acceleration module includes an inductor L c First auxiliary switch Q a1 Second auxiliary switch Q a2 The third auxiliary switch Q a3 Fourth auxiliary switch Q a4 ;

[0026] The second modular expansion terminal of the previous high dynamic pulse current generator module is connected to the first modular expansion terminal of the next high dynamic pulse current generator module. The positive external terminal V of all high dynamic pulse current generator modules is connected to... + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus;

[0027] The first modular expansion terminal of the first high dynamic pulse current generation module is connected to the inductor L. c One end, inductor L c The other end is connected to the first auxiliary switch Q. a1 Source, first auxiliary switch Q a1 The drain is connected to the third auxiliary switch Q. a3 Drain, third auxiliary switch Q a3 The source is connected to the fourth auxiliary switch Q. a4 Drain, fourth auxiliary switch Q a4 The source is connected to the second auxiliary switch Q. a2 Source, second auxiliary switch Q a2 The drain is connected to the inductor L c The other end is connected to the first auxiliary switch Q. a1 The source connection point, the second modular extension terminal of the last high dynamic pulse current generation module, is connected to the third auxiliary switch Q. a3 Source and fourth auxiliary switch Q a4 The connection point of the drain, the first auxiliary switch Q a1 Drain and third auxiliary switch Q a3The drain connection point is connected to the negative terminal of the power bus, and the second auxiliary switch Q... a2 Source and fourth auxiliary switch Q a4 The source connection point is connected to the positive terminal of the power bus.

[0028] The present invention also provides another high dynamic pulse current generator, comprising several high dynamic pulse current generating modules and a current acceleration module connected in series, wherein the current acceleration module includes an inductor Lc and a first auxiliary switch Q. a1 Second auxiliary switch Q a2 The third auxiliary switch Q a3 Fourth auxiliary switch Q a4 First auxiliary capacitor C a1 Second auxiliary capacitor C a2 Auxiliary transformer T a Auxiliary transformer T a Including the primary winding L ap and secondary winding L as ;

[0029] The second modular expansion terminal of the previous high dynamic pulse current generator module is connected to the first modular expansion terminal of the next high dynamic pulse current generator module. The positive external terminal V of all high dynamic pulse current generator modules is connected to... + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus;

[0030] The first modular expansion terminal of the first high dynamic pulse current generation module is connected to the inductor L. c One end, inductor L c The other end is connected to the fourth auxiliary switch Q. a4 Drain, third auxiliary switch Q a3 The drain is connected to the fourth auxiliary switch Q. a4 Drain and Inductance L c The connection point at the other end, the third auxiliary switch Q a3 The source is connected to the second auxiliary capacitor C. a2 Positive terminal, second auxiliary capacitor C a2 The negative terminal is connected to the fourth auxiliary switch Q. a4 Source pole, primary winding L ap The same terminal is connected to the third auxiliary switch Q. a3 Source and second auxiliary capacitor C a2 The positive terminal connection point, primary winding L ap The non-identical terminal is connected to the second auxiliary switch Q. a2 Source, first auxiliary switch Q a1 The source is connected to the primary winding L ap Non-same-name client and Qa2 The connection point of the source of the second auxiliary switch, and the connection point of the first auxiliary switch Q. a1 The drain is connected to the first auxiliary capacitor C. a1 Positive terminal, first auxiliary capacitor C a1 The negative terminal is connected to the second auxiliary switch Q. a2 Drain, secondary winding L as The same terminal is connected to the first auxiliary capacitor C. a1 Negative electrode and second auxiliary switch Q a2 The connection point of the drain, the secondary winding L as The non-identical terminal is connected to the second modular expansion terminal of the last high dynamic pulse current generation module, and the first auxiliary switch Q. a1 Drain and first auxiliary capacitor C a1 The positive connection point is connected to the positive terminal of the power bus, and the fourth auxiliary switch Q... a4 Source and first auxiliary capacitor C a1 The negative connection point is connected to the negative terminal of the power bus.

[0031] The present invention also provides a control method for the above-mentioned high dynamic pulse current generator, comprising the following steps:

[0032] S1. Based on the requirements, generate the primary winding L of the first transformer T1. 1p With secondary winding L 1s Current reference value I L_ref The average reference value of the operating voltage V of the first energy storage capacitor C1 C1_ref , and L c Current reference value I Lc_ref ;

[0033] S2. Sample and calculate the average secondary current I of the first transformer T1 of any high-dynamic pulse current generation module. L1s The average operating voltage V of the first energy storage capacitor C1 C1 And the average output current I of the sampling current acceleration module LC ;

[0034] S3, V C1_ref With V C1 The difference is used for PI calculation to obtain the output value OUT of the first PI controller. C1 OUT C1 with I L_ref The sum of these values ​​serves as the adjusted current reference value I. L1s_ref , will I L1s_ref with I L1s The difference is used for PI calculation to obtain the output value OUT of the second PI controller. IL ;

[0035] S4. Set the output value of the second PI controller to OUT. IL The third driving signal PWM3 is obtained after comparison with the carrier signal. The first driving signal PWM1 is obtained by shifting the phase of PWM3 by 180°. The fourth driving signal PWM4 and the driving signal PWM2 are obtained by inverting PWM3 and PWM1 respectively. Then, PWM1, PWM2, PWM3 and PWM4 are shifted by i*2π / n respectively, and used as the driving signals of the first switch Q1, the second switch Q2, the third switch Q3 and the fourth switch Q4 of the i-th high dynamic pulse current generation module, i=1,…,n, where n is the number of high dynamic pulse current generation modules;

[0036] S5, I LC_ref with I LC The difference is used for PI calculation to obtain the output value OUT of the third PI controller. LC OUT LC After modulation, the drive signals for each auxiliary switch in the current acceleration module are obtained. Specifically, for the introduced half-bridge converter, the output OUT of the third PI controller is... LC The first auxiliary transistor drive signal PWM is obtained after comparison with the carrier signal. a1 The first auxiliary transistor drive signal PWM a1 The second auxiliary transistor drive signal PWM is obtained after inversion. a2 For the introduced H-bridge converter, the output of the third PI controller is OUT. LC The first auxiliary transistor drive signal PWM is obtained after comparison with the carrier signal. a1 With the fourth auxiliary transistor drive signal PWM a4 The first auxiliary transistor drive signal PWM is used. a1 With the fourth auxiliary transistor drive signal PWM a4 The second auxiliary transistor drive signal PWM is obtained after inversion. a2 With the third auxiliary tube drive signal PWM a3 For the introduced pulse current generator auxiliary module, the output of the third PI controller is OUT. LC The second auxiliary transistor drive signal PWM is obtained after comparison with the carrier signal. a2 The second auxiliary transistor drive signal PWM a2 The first auxiliary transistor drive signal PWM is obtained after inversion. a1 The second auxiliary transistor drive signal PWM a2 With the first auxiliary tube drive signal PWM a1 After a 180° phase shift, the third auxiliary transistor drive signal PWM is obtained. a3 With the fourth auxiliary transistor drive signal PWM a4 .

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0038] 1. Faster dynamic response speed, based on the principle of magnetic coupling, which makes the buffering effect of this scheme better.

[0039] 2: The active circuit has a lower power capacity and PPC capability, which is lower than the active circuit power capacity of the traditional IBC-based FPC converter.

[0040] 3: Higher efficiency, with PPC capability, lower power conversion through active circuitry, better loss, and higher overall efficiency.

[0041] 4. It has stronger modular expansion capabilities. The number of module channels can be increased or decreased arbitrarily according to needs, resulting in higher scalability and flexibility.

[0042] 5. The control scheme is simpler, and when expanding to multiple modules, it has the ability to automatically balance the voltage and current between modules. It only needs to sample the electrical parameters of one module to realize the control of all modules of the generator. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of a high dynamic pulse current generating module provided in an embodiment of the present invention;

[0044] Figure 2 yes Figure 1 The diagram shows the key operating waveforms of the high dynamic pulse current generation module.

[0045] Figure 3 This is a schematic diagram of another high dynamic pulse current generating module provided in an embodiment of the present invention;

[0046] Figure 4 yes Figure 3 The diagram shows the key operating waveforms of the high dynamic pulse current generation module.

[0047] Figure 5 This is a schematic diagram of the structure of the first high dynamic pulse current generator provided in the embodiment of the present invention;

[0048] Figure 6 This is a key operating waveform of the first type of high dynamic pulse current generator provided in this embodiment of the invention;

[0049] Figure 7 This is another key operating waveform of the first type of high dynamic pulse current generator provided in the embodiments of the present invention;

[0050] Figure 8 This is a schematic diagram of the structure of the second type of high dynamic pulse current generator provided in this embodiment of the invention;

[0051] Figure 9This is a schematic diagram of the structure of the third type of high dynamic pulse current generator provided in the embodiments of the present invention;

[0052] Figure 10 This is a schematic diagram of the structure of the fourth type of high dynamic pulse current generator provided in the embodiments of the present invention;

[0053] Figure 11 This is a schematic diagram of the structure of the fifth type of high dynamic pulse current generator provided in the embodiments of the present invention;

[0054] Figure 12 This is a schematic diagram of the sixth type of high dynamic pulse current generator provided in this embodiment of the invention;

[0055] Figure 13 This is a flowchart illustrating the control method for a high dynamic pulse current generator provided in an embodiment of the present invention. Detailed Implementation

[0056] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0057] Example 1

[0058] This invention provides a high dynamic pulse current generation module, such as... Figure 1 As shown, it includes a first energy storage capacitor C1, a second energy storage capacitor C2, a first switching transistor Q1, a second switching transistor Q2, a third switching transistor Q3, a fourth switching transistor Q4, a first transformer T1, and a second transformer T2, and is equipped with a positive external terminal V. + Negative external terminal V - The system comprises a first modular expansion terminal A and a second modular expansion terminal B; wherein the drain of the first switching transistor Q1 is connected to the positive terminal of the first energy storage capacitor C1, and its source is connected to the drain of the second switching transistor Q2; the source of the second switching transistor Q2 is connected to the negative terminal of the first energy storage capacitor C1; the source of the fourth switching transistor Q4 is connected to the negative terminal of the second energy storage capacitor C2, and its drain is connected to the source of the third switching transistor Q3; the positive terminal of the second energy storage capacitor C2 is connected to the drain of the third switching transistor Q3; and the positive terminal is externally connected to terminal V. + The connection point between the drain of the first switching transistor Q1 and the positive terminal of the first energy storage capacitor C1, and the external negative terminal V. - The connection point between the source of the fourth switch Q4 and the negative terminal of the second energy storage capacitor C2 is connected to the source and drain of the third switch Q3 via a transformer combination module consisting of the first transformer T1 and the second transformer T2. Specifically, the first transformer T1 includes a first primary winding L. 1p and the first secondary winding L 1s The second transformer T2 includes a second primary winding L 2pSecond secondary winding L 2s The first primary winding L 1p The non-identical terminal is connected to the drain of the second switch Q2, and the identical terminal is connected to the drain of the third switch Q3. The first secondary winding L 1s The non-same-name terminal is connected to the source of the third switch Q3, and the same-name terminal is connected to the second primary winding L. 2p Same name terminal, second primary winding L 2p The non-identical terminal is connected to the source of the second switch Q2, and the second secondary winding L 2s The same-named terminal is connected to the first modular expansion terminal A, and the different-named terminal is connected to the second modular expansion terminal B.

[0059] Its working principle is as follows: Figure 2 As shown, Q1 and Q2 are complementary conductors, and Q3 and Q4 are complementary conductors, with duty cycles of D for Q2 and Q3 respectively. y2 With D y3 Furthermore, Q3 lags Q2 by 180 degrees in phase. Its operating waveform is as follows: Figure 2 As shown, there are four working modes.

[0060] Mode 1 (t0~t1): At this time, Q2 and Q4 are turned on, and Q1 and Q3 are turned off. The voltages of the primary and secondary windings of T1 and T2 are as follows:

[0061] (1)

[0062] (2)

[0063] In the formula, the superscript indicates the corresponding mode, the subscript indicates the specific value at a specific device, v represents voltage, and I represents current. For example, L represents mode one 1p voltage value, Indicates the positive external terminal V + External terminal V of the negative electrode - The voltage values ​​between;

[0064] Mode 2 (t1~t2): At this time, Q1 and Q4 are turned on, and Q2 and Q3 are turned off. The voltages of the primary and secondary windings of T1 and T2 are as follows:

[0065] (3)

[0066] (4)

[0067] Mode 3 (t2~t3): At this time, Q1 and Q3 are turned on, and Q2 and Q4 are turned off. The voltages of the primary and secondary windings of T1 and T2 are as follows:

[0068] (5)

[0069] (6)

[0070] Mode 4 (t3~t4): At this time, Q1 and Q4 are turned on, and Q2 and Q3 are turned off. The voltages of the primary and secondary windings of T1 and T2 are as follows:

[0071] (7)

[0072] (8)

[0073] Based on the volt-second balance, we can obtain:

[0074] (9)

[0075] (10)

[0076] In the formula, Indicates the switching cycle of the switching transistor;

[0077] Simplifying, we get:

[0078] (11)

[0079] (12)

[0080] Therefore, the duty cycle D of Q2 and Q3 is guaranteed. y2 With D y3 Equal, is D y At this time, the voltages of the two capacitors can be kept balanced, that is:

[0081] (13)

[0082] At this point, since the module's output power is entirely provided by the capacitors, due to the discharge current of capacitors C1 and C2... and satisfy:

[0083] (14)

[0084] (15)

[0085] In the formula, Indicates the change value, for example Represents the voltage at two moments The change value, Indicates the interval between two moments;

[0086] As shown in (13), when capacitors C1 and C2 are designed to be equal, the discharge currents of the two capacitors can be guaranteed to be equal. Furthermore, due to the full coupling of T1, the primary and secondary currents are forcibly balanced. Therefore, with only a simple control method, the voltage and current within the module are naturally balanced.

[0087] Furthermore, based on the working principle, the discharge currents of C1 and C2 can be expressed as:

[0088] (16)

[0089] (17)

[0090] Among them, due to and Let Q2 and Q3 be the currents flowing through them. The current flowing through the switching transistors must undergo power conversion before being output to the DC bus; its power can be expressed as:

[0091] (18)

[0092] (19)

[0093] The current flowing through the switching transistor can be expressed as:

[0094] (20)

[0095] (twenty one)

[0096] The output power of each capacitor can be expressed as:

[0097] (twenty two)

[0098] (twenty three)

[0099] And because:

[0100] (twenty four)

[0101] (25)

[0102] (26)

[0103] Therefore, the proportion of power converted to the module's output power can be expressed as:

[0104] (27)

[0105] The above formula shows that the power conversion ratio of this module must be less than 1, indicating that partial power conversion can be achieved throughout the entire operating range.

[0106] Example 2

[0107] This invention provides another high dynamic pulse current generating module, such as... Figure 3 As shown, it includes a first energy storage capacitor C1, a second energy storage capacitor C2, a first switching transistor Q1, a second switching transistor Q2, a third switching transistor Q3, a fourth switching transistor Q4, a first transformer T1, and a second transformer T2, and is equipped with a positive external terminal V. + Negative external terminal V - The system comprises a first modular expansion terminal A and a second modular expansion terminal B; wherein the drain of the first switching transistor Q1 is connected to the positive terminal of the first energy storage capacitor C1, and its source is connected to the drain of the second switching transistor Q2; the source of the second switching transistor Q2 is connected to the negative terminal of the first energy storage capacitor C1; the source of the fourth switching transistor Q4 is connected to the negative terminal of the second energy storage capacitor C2, and its drain is connected to the source of the third switching transistor Q3; the positive terminal of the second energy storage capacitor C2 is connected to the drain of the third switching transistor Q3; and the positive terminal is externally connected to terminal V. + The connection point between the drain of the first switching transistor Q1 and the positive terminal of the first energy storage capacitor C1, and the external negative terminal V. - The connection point between the source of the fourth switch Q4 and the negative terminal of the second energy storage capacitor C2 is connected to the source and drain of the third switch Q3 via a transformer combination module consisting of the first transformer T1 and the second transformer T2. Specifically, the first transformer T1 includes a first primary winding L. 1p and the first secondary winding L 1s The second transformer T2 includes a second primary winding L 2p Second secondary winding L 2s The first primary winding L 1p The non-same-name terminal is connected to the first modular expansion terminal A, and the same-name terminal is connected to the second secondary winding L. 2s Non-same-name terminals, first secondary winding L 1s The same-name terminal is connected to the drain of the second switch Q2, and the different-name terminal is connected to the drain of the third switch Q3. The second primary winding L 2p The non-same-name terminal is connected to the source of the second switch Q2, and the same-name terminal is connected to the source of the third switch Q3. The second secondary winding L 2s The same-named terminal is connected to the second modular expansion terminal B.

[0108] Its working principle is as follows: Figure 4 As shown, Q1 and Q2 are complementary conductors, and Q3 and Q4 are complementary conductors, with duty cycles of D for Q2 and Q3 respectively. y2 With D y3Furthermore, Q3 lags Q2 by 180 degrees in phase. Its operating waveform is as follows: Figure 2 As shown, there are four working modes.

[0109] Mode 1 (t0~t1): At this time, Q2 and Q4 are turned on, and Q1 and Q3 are turned off. The voltages of the primary and secondary windings of T1 and T2 are as follows:

[0110] (28)

[0111] (29)

[0112] Mode 2 (t1~t2): At this time, Q1 and Q4 are turned on, and Q2 and Q3 are turned off. The voltages of the primary and secondary windings of T1 and T2 are as follows:

[0113] (30)

[0114] (31)

[0115] Mode 3 (t2~t3): At this time, Q1 and Q3 are turned on, and Q2 and Q4 are turned off. The voltages of the primary and secondary windings of T1 and T2 are as follows:

[0116] (32)

[0117] (33)

[0118] Mode 4 (t3~t4): At this time, Q1 and Q4 are turned on, and Q2 and Q3 are turned off. The voltages of the primary and secondary windings of T1 and T2 are as follows:

[0119] (34)

[0120] (35)

[0121] Based on the volt-second balance, we can obtain:

[0122] (36)

[0123] (37)

[0124] Simplifying, we get:

[0125] (38)

[0126] (39)

[0127] Therefore, the duty cycle D of Q2 and Q3 is guaranteed.y2 With D y3 Equal, is D y At this time, the voltages of the two capacitors can be kept balanced, that is:

[0128] (40)

[0129] At this point, since the module's output power is entirely supplied by the capacitor, because:

[0130] (41)

[0131] (42)

[0132] As shown in (13), when capacitors C1 and C2 are designed to be equal, the discharge currents of the two capacitors can be guaranteed to be equal. Furthermore, due to the law of conservation of power, the operating currents of each transformer are equal. Therefore, with only a simple control method, the voltage and current within the module will naturally be balanced.

[0133] Furthermore, based on the working principle, the discharge currents of C1 and C2 can be expressed as:

[0134] (43)

[0135] (44)

[0136] The current flowing through the switching transistor must undergo power conversion before it can be output to the DC bus. Its power can be expressed as:

[0137] (45)

[0138] (46)

[0139] The current flowing through the switching transistor can be expressed as:

[0140] (47)

[0141] (48)

[0142] The output power of each capacitor can be expressed as:

[0143] (49)

[0144] (50)

[0145] And because:

[0146] (51)

[0147] (52)

[0148] (53)

[0149] Therefore, the proportion of power converted to the module's output power can be expressed as:

[0150] (54)

[0151] The above formula shows that the power conversion ratio of this module must be less than 1, indicating that partial power conversion can be achieved throughout the entire operating range.

[0152] Example 3

[0153] This invention provides a high dynamic pulse current generator, such as... Figure 5 As shown, it includes n high dynamic pulse current generating modules as described in Embodiment 1 or 2 connected in series; wherein, the second modular expansion terminal B of the first high dynamic pulse current generating module (numbered i#) i The first modular expansion terminal A is connected to the next high dynamic pulse current generation module (numbered i+1#). i+1 The positive external terminal V of all high dynamic pulse current generating modules + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus; the first modular expansion terminal A1 of the first high dynamic pulse current generating module (numbered 1#) is left floating, and the second modular expansion terminal B of the last high dynamic pulse current generating module (numbered n#) is connected to the negative terminal of the power bus. n Suspended in mid-air.

[0154] In this module, the drive signals of each switch transistor in the preceding high dynamic pulse current generation module (numbered i#) lead the corresponding drive signal of the next high dynamic pulse current generation module (numbered i+1#) by 2π / n, and the drive signals of each corresponding switch transistor remain equal. Since each module is directly connected in parallel to the DC bus, it can be seen from (13) and (40) that when the designed capacitance values ​​of each capacitor are the same, the voltage of each capacitor is equal. Furthermore, it can be seen from (14), (15), (41) and (42) that the charging current of each capacitor is equal at this time.

[0155] Furthermore, the output power of each module is as follows:

[0156] (55)

[0157] The total power after power conversion can be expressed as:

[0158] (56)

[0159] Therefore, the proportion of power converted to the module's output power can be expressed as:

[0160] (57)

[0161] The above formula shows that the power conversion ratio of this module must be less than 1, indicating that partial power conversion can be achieved throughout the entire operating range.

[0162] Taking the three-channel high dynamic pulse current generator based on the high dynamic pulse current generation module of Embodiment 1 as an example, its key operating waveforms are as follows: Figure 6 As shown. Taking the three-channel high dynamic pulse current generator based on the high dynamic pulse current generation module described in Embodiment 2 as another example, its key operating waveforms are as follows: Figure 7 As shown.

[0163] Example 4

[0164] This invention provides a second type of high dynamic pulse current generator, such as... Figure 8 As shown, it includes n series-connected high-dynamic pulse current generating modules and current acceleration modules as described in Embodiment 1 or 2; the current acceleration module includes an inductor L c Among them, the second modular expansion terminal B of the previous high dynamic pulse current generating module (numbered i#) i The first modular expansion terminal A is connected to the next high dynamic pulse current generation module (numbered i+1#). i+1 The positive external terminal V of all high dynamic pulse current generating modules + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus; the first modular expansion terminal A1 of the first high dynamic pulse current generating module (numbered 1#) is connected through inductor L. c Connect to the second modular expansion terminal B of the last high dynamic pulse current generating module (numbered n#). n .

[0165] At this time, the voltage v between ports A and B AB Voltage applied directly to inductor L c superior.

[0166] First, taking the three-channel high dynamic pulse current generator based on the high dynamic pulse current generation module described in Example 1 as an example, when the load current suddenly changes, the duty cycle of Q2 and Q3 changes to D. y +ΔD y At this time, add to L c The volt-second product of the voltage on the circuit over one switching cycle is:

[0167] (58)

[0168] Then from:

[0169] (59)

[0170] Therefore, inductance L c The system has an extremely fast response speed to sudden changes in load current. This current is then fed back to the primary and secondary currents of each transformer by the fully coupled inductor, giving the entire system an extremely high dynamic response speed.

[0171] Similarly, let's take the three-channel high dynamic pulse current generator of the high dynamic pulse current generation module described in Example 2 as an example. When the load current suddenly changes, L c The change in current over one switching cycle is as follows:

[0172] (60)

[0173] Therefore, inductance L c The system has an extremely fast response speed to sudden changes in load current. This current is then fed back to the primary and secondary currents of each transformer by the fully coupled inductor, giving the entire system an extremely high dynamic response speed.

[0174] Example 5

[0175] This invention provides a third type of high dynamic pulse current generator, such as... Figure 9 As shown, it includes n high-dynamic pulse current generating modules and current acceleration modules as described in Embodiment 1 or 2, connected in series. The current acceleration module includes an inductor L. c First auxiliary switch Q a1 Second auxiliary switch Q a2 And auxiliary capacitor C a The second modular expansion terminal B of the previous high dynamic pulse current generation module (numbered i#) i The first modular expansion terminal A is connected to the next high dynamic pulse current generation module (numbered i+1#). i+1 The positive external terminal V of all high dynamic pulse current generating modules + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus;

[0176] The first modular expansion terminal A1 of the first high dynamic pulse current generation module (numbered 1#) is connected to the inductor L. c One end of the inductor Lc is connected to the first auxiliary switch Q. a1 Source, first auxiliary switch Q a1 The drain is connected to the auxiliary capacitor C aPositive terminal, auxiliary capacitor C a The negative terminal is connected to the second auxiliary switch at Q. a2 Source, second auxiliary switch Q a2 The drain is connected to the inductor L c The other end is connected to the first auxiliary switch Q. a1 The source connection point, the last high dynamic pulse current generation module (numbered n#), the second modular expansion terminal B. n Connected to the positive terminal of the power bus, auxiliary capacitor C a Negative electrode and second auxiliary switch Q a2 The source connection point is connected to the negative terminal of the power bus.

[0177] In this scheme, a half-bridge converter is introduced into the current acceleration module, which can improve the efficiency of inductor L under steady-state conditions. c current i Lc It performs control and also acts as an output to compensate for pulsed power loads. Furthermore, it controls the inductor L... c current i Lc This allows it to offset the DC bias of the transformer core within the module, reducing the core loss of magnetic components, reducing the size of magnetic components, and improving efficiency and power density.

[0178] Example 6

[0179] This invention provides a fourth type of high dynamic pulse current generator, such as... Figure 10 As shown, it includes n series-connected high-dynamic pulse current generating modules and current acceleration modules as described in Embodiment 1 or 2. The current acceleration module includes an inductor Lc and a first auxiliary switch Q. a1 Second auxiliary switch Q a2 The third auxiliary switch Q a3 Fourth auxiliary switch Q a4 And auxiliary capacitor C a The second modular expansion terminal B of the previous high dynamic pulse current generation module (numbered i#) i The first modular expansion terminal A is connected to the next high dynamic pulse current generation module (numbered i+1#). i+1 The positive external terminal V of all high dynamic pulse current generating modules + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus; the first modular expansion terminal A1 of the first high dynamic pulse current generating module (numbered 1#) is connected to the inductor L. c One end, inductor L c The other end is connected to the first auxiliary switch Q. a1 Source, first auxiliary switch Q a1 The drain is connected to the third auxiliary switch Q.a3 Drain, third auxiliary switch Q a3 The source is connected to the fourth auxiliary switch Q. a4 Drain, fourth auxiliary switch Q a4 The source is connected to the second auxiliary switch Q. a2 Source, second auxiliary switch Q a2 The drain is connected to the inductor L c The other end is connected to the first auxiliary switch Q. a1 The source connection point, the second modular expansion terminal B of the last high dynamic pulse current generation module (numbered n#). n Connected to the third auxiliary switch Q a3 Source and fourth auxiliary switch Q a4 The connection point of the drain, and the auxiliary capacitor C a The positive terminal is connected to the first auxiliary switch Q. a1 Drain and third auxiliary switch Q a3 The connection point of the drain electrode, C a The negative terminal is connected to the second auxiliary switch Q. a2 Source and fourth auxiliary switch Q a4 The connection point of the source.

[0180] In this scheme, an H-bridge converter is introduced into the current acceleration module, which can also be used for inductor L. c current i Lc Control is performed. The difference is that this active circuit is not connected to the bus and does not serve as an output compensation pulse power load. Therefore, an energy storage capacitor array exists in the current acceleration module, which provides the energy to maintain the normal operation of the current acceleration module. This circuit also controls inductor L. c current i Lc This allows it to offset the DC bias of the transformer core within the module, reducing the core loss of magnetic components, reducing the size of magnetic components, and improving efficiency and power density.

[0181] Example 7

[0182] This invention provides a fifth type of high dynamic pulse current generator, such as... Figure 11 As shown, it includes n series-connected high-dynamic pulse current generating modules and current acceleration modules as described in Embodiment 1 or 2. The current acceleration module includes an inductor Lc and a first auxiliary switch Q. a1 Second auxiliary switch Q a2 The third auxiliary switch Q a3 Fourth auxiliary switch Q a4 The second modular expansion terminal B of the previous high dynamic pulse current generation module (numbered i#) iThe first modular expansion terminal A is connected to the next high dynamic pulse current generation module (numbered i+1#). i+1 The positive external terminal V of all high dynamic pulse current generating modules + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus; the first modular expansion terminal A1 of the first high dynamic pulse current generating module is connected to the inductor L. c One end, inductor L c The other end is connected to the first auxiliary switch Q. a1 Source, first auxiliary switch Q a1 The drain is connected to the third auxiliary switch Q. a3 Drain, third auxiliary switch Q a3 The source is connected to the fourth auxiliary switch Q. a4 Drain, fourth auxiliary switch Q a4 The source is connected to the second auxiliary switch Q. a2 Source, second auxiliary switch Q a2 The drain is connected to the inductor L c The other end is connected to the first auxiliary switch Q. a1 The source connection point, the second modular expansion terminal B of the last high dynamic pulse current generation module. n Connected to the third auxiliary switch Q a3 Source and fourth auxiliary switch Q a4 The connection point of the drain, the first auxiliary switch Q a1 Drain and third auxiliary switch Q a3 The drain connection point is connected to the negative terminal of the power bus, and the second auxiliary switch Q... a2 Source and fourth auxiliary switch Q a4 The source connection point is connected to the positive terminal of the power bus.

[0183] In this scheme, an H-bridge converter is also introduced into the current acceleration module, which can improve the efficiency of inductor L. c current i Lc It performs control and, simultaneously, serves as an output to compensate for pulsed power loads in steady state. Furthermore, this circuit can also control the inductor L. c current i Lc Control is implemented to counteract the DC bias of the transformer core within the module, reducing core losses in magnetic components, decreasing the size of magnetic components, and improving efficiency and power density.

[0184] Example 8

[0185] This invention also provides a sixth type of high dynamic pulse current generator, such as... Figure 12As shown, it includes n series-connected high-dynamic pulse current generating modules and current acceleration modules as described in Embodiment 1 or 2. The current acceleration module includes an inductor Lc and a first auxiliary switch Q. a1 Second auxiliary switch Q a2 The third auxiliary switch Q a3 Fourth auxiliary switch Q a4 First auxiliary capacitor C a1 Second auxiliary capacitor C a2 Auxiliary transformer T a Auxiliary transformer T a Including the primary winding L ap and secondary winding L as The second modular expansion terminal B of the previous high dynamic pulse current generation module (numbered i#) i The first modular expansion terminal A is connected to the next high dynamic pulse current generation module (numbered i+1#). i+1 The positive external terminal V of all high dynamic pulse current generating modules + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus; the first modular expansion terminal A1 of the first high dynamic pulse current generating module is connected to the inductor L. c One end, inductor L c The other end is connected to the fourth auxiliary switch Q. a4 Drain, third auxiliary switch Q a3 The drain is connected to the fourth auxiliary switch Q. a4 Drain and Inductance L c The connection point at the other end, the third auxiliary switch Q a3 The source is connected to the second auxiliary capacitor C. a2 Positive terminal, second auxiliary capacitor C a2 The negative terminal is connected to the fourth auxiliary switch Q. a4 Source pole, primary winding L ap The same terminal is connected to the third auxiliary switch Q. a3 Source and second auxiliary capacitor C a2 The positive terminal connection point, primary winding L ap The non-identical terminal is connected to the second auxiliary switch Q. a2 Source, first auxiliary switch Q a1 The source is connected to the primary winding L ap Non-same-name client and Q a2 The connection point of the source of the second auxiliary switch, and the connection point of the first auxiliary switch Q. a1 The drain is connected to the first auxiliary capacitor C. a1 Positive terminal, first auxiliary capacitor C a1 The negative terminal is connected to the second auxiliary switch Q. a2Drain, secondary winding L as The same terminal is connected to the first auxiliary capacitor C. a1 Negative electrode and second auxiliary switch Q a2 The connection point of the drain, the secondary winding L as The non-identical terminal is connected to the second modular expansion terminal Bn of the last high dynamic pulse current generation module, and the first auxiliary switch Q. a1 Drain and first auxiliary capacitor C a1 The positive connection point is connected to the positive terminal of the power bus, and the fourth auxiliary switch Q... a4 Source and first auxiliary capacitor C a1 The negative connection point is connected to the negative terminal of the power bus.

[0186] In this scheme, another high-dynamic pulse current generation module is introduced, which, through a special connection, enables it to generate current for inductor L. c Current i Lc It can be used for control. Simultaneously, it can also function as an output under steady-state conditions to compensate for pulsed power loads. Furthermore, this circuit can also control the inductor L. c current i Lc Control is implemented to counteract the DC bias of the transformer core within the module, reducing core losses in magnetic components, decreasing the size of magnetic components, and improving efficiency and power density.

[0187] Example 9

[0188] This invention provides a control method for the high dynamic pulse current generator described in embodiments 5-8 above. The connection structure of the high dynamic pulse current generator is as follows: Figure 13 As shown, a subscript is added to the corresponding device of each high dynamic pulse current generation module for differentiation. For example, the first switching transistor of the first high dynamic pulse current generation module is Q. 11 This indicates that the first switching transistor of the second high-dynamic pulse current generation module uses Q. 21 This indicates that other devices are similar. The control method specifically includes the following steps:

[0189] S1. Based on the requirements, generate the primary winding L of the first transformer T1. 1p With secondary winding L 1s Current reference value I L_ref The average reference value of the operating voltage V of the first energy storage capacitor C1 C1_ref , and L c Current reference value I Lc_ref ;

[0190] S2, Sample the secondary current i of T1 of any high dynamic pulse current generator. L1s After passing through a low-pass filter, the average secondary current I of T1 is obtained. L1sThe sampling corresponds to the operating voltage v of C1 of the high dynamic pulse current generator. c1 After passing through a low-pass filter, the average operating voltage V of C1 is obtained. C1 The sampling current acceleration module outputs current i Lc The average output current I of the current acceleration module is obtained after passing through a low-pass filter. LC ;

[0191] S3, V C1_ref With V C1 The difference is used for PI calculation to obtain the output value OUT of the first PI controller. C1 OUT C1 with I L_ref The sum of these values ​​serves as the adjusted current reference value I. L1s_ref , will I L1s_ref with I L1s The difference is used for PI calculation to obtain the output value OUT of the second PI controller. IL ;

[0192] S4. Set the output value of the second PI controller to OUT. IL After comparison with the carrier signal, the third drive signal PWM3 is obtained. PWM3 is phase-shifted by 180° to obtain the first drive signal PWM1. PWM3 and PWM1 are inverted to obtain the fourth drive signal PWM4 and drive signal PWM2. Subsequently, PWM1, PWM2, PWM3, and PWM4 are phase-shifted by i*2π / n respectively, and used as the drive signals for the first switch Q1, second switch Q2, third switch Q3, and fourth switch Q4 of the i-th high dynamic pulse current generation module, i=1,…,n, where n is the number of high dynamic pulse current generation modules. For example, shifting PWM1, PWM2, PWM3, and PWM4 by 1*2π / n respectively yields the Q1 signal in the #1 high dynamic pulse current generation module. 11 Q 21 Q 31 Q 41 The drive signals are used to shift the phases of PWM1, PWM2, PWM3, and PWM4 by 2*2π / n to obtain the Q signal in the #2 high dynamic pulse current generation module. 12 Q 22 Q 32 Q 42 The drive signal;

[0193] S5, I LC_ref with I LC The difference is used for PI calculation to obtain the output value OUT of the third PI controller. LC OUT LC After modulation by the modulator, the drive signals for each auxiliary switch in the current acceleration module are obtained.

[0194] Specifically, for the introduced half-bridge converter, the output OUT of the third PI controller is... LC The first auxiliary transistor drive signal PWM is obtained after comparison with the carrier signal. a1 The first auxiliary transistor drive signal PWM is used. a1 The second auxiliary transistor drive signal PWM is obtained after inversion. a2 .

[0195] For the introduced H-bridge converter, the output of the third PI controller OUT LC The first auxiliary transistor drive signal PWM is obtained after comparison with the carrier signal. a1 With the fourth auxiliary transistor drive signal PWM a4 The first auxiliary transistor drive signal PWM is used. a1 With the fourth auxiliary transistor drive signal PWM a4 The second auxiliary transistor drive signal PWM is obtained after inversion. a2 With the third auxiliary tube drive signal PWM a3 .

[0196] For the introduced pulse current generator auxiliary module, the output of the third PI controller is OUT. LC The second auxiliary transistor drive signal PWM is obtained after comparison with the carrier signal. a2 The second auxiliary transistor drive signal PWM a2 The first auxiliary transistor drive signal PWM is obtained after inversion. a1 The second auxiliary transistor drive signal PWM a2 With the first auxiliary tube drive signal PWM a1 After a 180° phase shift, the third auxiliary transistor drive signal PWM is obtained. a3 With the fourth auxiliary transistor drive signal PWM a4 .

[0197] In the above embodiments, each switching transistor is a field-effect transistor, specifically any fully controllable power semiconductor device such as MOSFET, IGBT, GaN, etc., and the energy storage capacitor is any energy storage device such as electrolytic capacitor, battery, supercapacitor, etc.

Claims

1. A high dynamic pulse current generating module, characterized in that, It includes a first energy storage capacitor C1, a second energy storage capacitor C2, a first switching transistor Q1, a second switching transistor Q2, a third switching transistor Q3, a fourth switching transistor Q4, a first transformer T1, and a second transformer T2, and is equipped with a positive external terminal V. + Negative external terminal V - The first modular expansion terminal A and the second modular expansion terminal B; In this configuration, the drain of the first switching transistor Q1 is connected to the positive terminal of the first energy storage capacitor C1, and its source is connected to the drain of the second switching transistor Q2. The source of the second switching transistor Q2 is connected to the negative terminal of the first energy storage capacitor C1. The source of the fourth switching transistor Q4 is connected to the negative terminal of the second energy storage capacitor C2, and its drain is connected to the source of the third switching transistor Q3. The positive terminal of the second energy storage capacitor C2 is connected to the drain of the third switching transistor Q3. The positive terminal is externally connected to terminal V. + The connection point between the drain of the first switching transistor Q1 and the positive terminal of the first energy storage capacitor C1, and the external negative terminal V. - The connection point between the source of the fourth switch Q4 and the negative terminal of the second energy storage capacitor C2 is connected. The source and drain of the second switch Q2 are connected to the source and drain of the third switch Q3 through a transformer combination module composed of the first transformer T1 and the second transformer T2. The first modular expansion terminal A and the second modular expansion terminal B are led out from the transformer combination module.

2. The high dynamic pulse current generating module according to claim 1, characterized in that, The first transformer T1 includes a first primary winding L 1p and the first secondary winding L 1s The second transformer T2 includes a second primary winding L 2p Second secondary winding L 2s The first primary winding L 1p The non-identical terminal is connected to the drain of the second switch Q2, and the identical terminal is connected to the drain of the third switch Q3. The first secondary winding L 1s The non-same-name terminal is connected to the source of the third switch Q3, and the same-name terminal is connected to the second primary winding L. 2p Same name terminal, second primary winding L 2p The non-identical terminal is connected to the source of the second switch Q2, and the second secondary winding L 2s The same-named terminal is connected to the first modular expansion terminal A, and the different-named terminal is connected to the second modular expansion terminal B.

3. The high dynamic pulse current generating module according to claim 1, characterized in that: The first transformer T1 includes a first primary winding L 1p and the first secondary winding L 1s The second transformer T2 includes a second primary winding L 2p Second secondary winding L 2s The first primary winding L 1p The non-same-name terminal is connected to the first modular expansion terminal A, and the same-name terminal is connected to the second secondary winding L. 2s Non-same-name terminals, first secondary winding L 1s The same-name terminal is connected to the drain of the second switch Q2, and the different-name terminal is connected to the drain of the third switch Q3. The second primary winding L 2p The non-same-name terminal is connected to the source of the second switch Q2, and the same-name terminal is connected to the source of the third switch Q3. The second secondary winding L 2s The same-named terminal is connected to the second modular expansion terminal B.

4. A high dynamic pulse current generator, characterized in that, Includes several high dynamic pulse current generating modules as described in claim 1; wherein, The second modular expansion terminal of the previous high dynamic pulse current generator module is connected to the first modular expansion terminal of the next high dynamic pulse current generator module. The positive external terminal V of all high dynamic pulse current generator modules is connected to... + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus; The first modular expansion terminal of the first high dynamic pulse current generating module is left floating, and the second modular expansion terminal of the last high dynamic pulse current generating module is left floating.

5. A high dynamic pulse current generator, characterized in that, Includes the high dynamic pulse current generating module and current acceleration module as described in claim 1, wherein the current acceleration module includes an inductor L c ; The second modular expansion terminal of the previous high dynamic pulse current generator module is connected to the first modular expansion terminal of the next high dynamic pulse current generator module. The positive external terminal V of all high dynamic pulse current generator modules is connected to... + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus; The first modular expansion terminal of the first high dynamic pulse current generation module is connected to the inductor L. c Connect to the second modular expansion terminal of the last high dynamic pulse current generation module.

6. A high dynamic pulse current generator, characterized in that, Includes the high dynamic pulse current generating module and current acceleration module as described in claim 1, wherein the current acceleration module includes an inductor L c First auxiliary switch Q a1 Second auxiliary switch Q a2 And auxiliary capacitor C a ; The second modular expansion terminal of the previous high dynamic pulse current generator module is connected to the first modular expansion terminal of the next high dynamic pulse current generator module. The positive external terminal V of all high dynamic pulse current generator modules is connected to... + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus; The first modular expansion terminal of the first high dynamic pulse current generation module is connected to the inductor L. c One end, inductor L c The other end is connected to the first auxiliary switch Q. a1 Source, first auxiliary switch Q a1 The drain is connected to the auxiliary capacitor C a Positive terminal, auxiliary capacitor C a The negative terminal is connected to the second auxiliary switch at Q. a2 Source, second auxiliary switch Q a2 The drain is connected to the inductor L c The other end is connected to the first auxiliary switch Q. a1 The source connection point, the last high dynamic pulse current generator module's second modular expansion terminal is connected to the positive terminal of the power bus, and the auxiliary capacitor C a Negative electrode and second auxiliary switch Q a2 The source connection point is connected to the negative terminal of the power bus.

7. A high dynamic pulse current generator, characterized in that, Includes the high dynamic pulse current generating module and current acceleration module as described in claim 1, wherein the current acceleration module includes an inductor L c First auxiliary switch Q a1 Second auxiliary switch Q a2 The third auxiliary switch Q a3 Fourth auxiliary switch Q a4 And auxiliary capacitor C a ; The second modular expansion terminal of the previous high dynamic pulse current generator module is connected to the first modular expansion terminal of the next high dynamic pulse current generator module. The positive external terminal V of all high dynamic pulse current generator modules is connected to... + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus; The first modular expansion terminal of the first high dynamic pulse current generation module is connected to the inductor L. c One end, inductor L c The other end is connected to the first auxiliary switch Q. a1 Source, first auxiliary switch Q a1 The drain is connected to the third auxiliary switch Q. a3 Drain, third auxiliary switch Q a3 The source is connected to the fourth auxiliary switch Q. a4 Drain, fourth auxiliary switch Q a4 The source is connected to the second auxiliary switch Q. a2 Source, second auxiliary switch Q a2 The drain is connected to the inductor L c The other end is connected to the first auxiliary switch Q. a1 The source connection point, the second modular extension terminal of the last high dynamic pulse current generation module, is connected to the third auxiliary switch Q. a3 Source and fourth auxiliary switch Q a4 The connection point of the drain, and the auxiliary capacitor C a The positive terminal is connected to the first auxiliary switch Q. a1 Drain and third auxiliary switch Q a3 The connection point of the drain electrode, C a The negative terminal is connected to the second auxiliary switch Q. a2 Source and fourth auxiliary switch Q a4 The connection point of the source.

8. A high dynamic pulse current generator, characterized in that, Includes the high dynamic pulse current generating module and current acceleration module as described in claim 1, wherein the current acceleration module includes an inductor L c First auxiliary switch Q a1 Second auxiliary switch Q a2 The third auxiliary switch Q a3 Fourth auxiliary switch Q a4 ; The second modular expansion terminal of the previous high dynamic pulse current generator module is connected to the first modular expansion terminal of the next high dynamic pulse current generator module. The positive external terminal V of all high dynamic pulse current generator modules is connected to... + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus; The first modular expansion terminal of the first high dynamic pulse current generation module is connected to the inductor L. c One end, inductor L c The other end is connected to the first auxiliary switch Q. a1 Source, first auxiliary switch Q a1 The drain is connected to the third auxiliary switch Q. a3 Drain, third auxiliary switch Q a3 The source is connected to the fourth auxiliary switch Q. a4 Drain, fourth auxiliary switch Q a4 The source is connected to the second auxiliary switch Q. a2 Source, second auxiliary switch Q a2 The drain is connected to the inductor L c The other end is connected to the first auxiliary switch Q. a1 The source connection point, the second modular extension terminal of the last high dynamic pulse current generation module, is connected to the third auxiliary switch Q. a3 Source and fourth auxiliary switch Q a4 The connection point of the drain, the first auxiliary switch Q a1 Drain and third auxiliary switch Q a3 The drain connection point is connected to the negative terminal of the power bus, and the second auxiliary switch Q... a2 Source and fourth auxiliary switch Q a4 The source connection point is connected to the positive terminal of the power bus.

9. A high dynamic pulse current generator, characterized in that, Includes the high dynamic pulse current generating module and current acceleration module as described in claim 1, wherein the current acceleration module includes an inductor L c First auxiliary switch Q a1 Second auxiliary switch Q a2 The third auxiliary switch Q a3 Fourth auxiliary switch Q a4 First auxiliary capacitor C a1 Second auxiliary capacitor C a2 Auxiliary transformer T a Auxiliary transformer T a Including the primary winding L ap and secondary winding L as ; The second modular expansion terminal of the previous high dynamic pulse current generator module is connected to the first modular expansion terminal of the next high dynamic pulse current generator module. The positive external terminal V of all high dynamic pulse current generator modules is connected to... + Connected to the positive terminal of the power bus, with the negative terminal V connected externally. - Connected to the negative terminal of the power bus; The first modular expansion terminal of the first high dynamic pulse current generation module is connected to the inductor L. c One end, inductor L c The other end is connected to the fourth auxiliary switch Q. a4 Drain, third auxiliary switch Q a3 The drain is connected to the fourth auxiliary switch Q. a4 Drain and Inductance L c The connection point at the other end, the third auxiliary switch Q a3 The source is connected to the second auxiliary capacitor C. a2 Positive terminal, second auxiliary capacitor C a2 The negative terminal is connected to the fourth auxiliary switch Q. a4 Source pole, primary winding L ap The same terminal is connected to the third auxiliary switch Q. a3 Source and second auxiliary capacitor C a2 The connection point of the positive terminal, the primary winding L ap The non-identical terminal is connected to the second auxiliary switch Q. a2 Source, first auxiliary switch Q a1 The source is connected to the primary winding L ap Non-same-name client and Q a2 The connection point of the source of the second auxiliary switch, and the connection point of the first auxiliary switch Q. a1 The drain is connected to the first auxiliary capacitor C. a1 Positive terminal, first auxiliary capacitor C a1 The negative terminal is connected to the second auxiliary switch Q. a2 Drain, secondary winding L as The same terminal is connected to the first auxiliary capacitor C. a1 Negative electrode and second auxiliary switch Q a2 The connection point of the drain, the secondary winding L as The non-identical terminal is connected to the second modular expansion terminal of the last high dynamic pulse current generation module, and the first auxiliary switch Q. a1 Drain and first auxiliary capacitor C a1 The positive connection point is connected to the positive terminal of the power bus, and the fourth auxiliary switch Q... a4 Source and first auxiliary capacitor C a1 The negative connection point is connected to the negative terminal of the power bus.

10. A control method for the high dynamic pulse current generator according to any one of claims 5 to 9, characterized in that, Includes the following steps: S1. Based on the requirements, generate the primary winding L of the first transformer T1. 1p With secondary winding L 1s Current reference value I L_ref The average reference value of the operating voltage V of the first energy storage capacitor C1 C1_ref , and L c Current reference value I Lc_ref ; S2. Sample and calculate the average secondary current I of the first transformer T1 of any high-dynamic pulse current generation module. L1s The average operating voltage V of the first energy storage capacitor C1 C1 And the average output current I of the sampling current acceleration module LC ; S3, V C1_ref With V C1 The difference is used for PI calculation to obtain the output value OUT of the first PI controller. C1 OUT C1 with I L_ref The sum of these values ​​serves as the adjusted current reference value I. L1s_ref , will I L1s_ref with I L1s The difference is used for PI calculation to obtain the output value OUT of the second PI controller. IL ; S4. Set the output value of the second PI controller to OUT. IL The third driving signal PWM3 is obtained after comparison with the carrier signal. The first driving signal PWM1 is obtained by shifting the phase of PWM3 by 180°. The fourth driving signal PWM4 and the driving signal PWM2 are obtained by inverting PWM3 and PWM1 respectively. Then, PWM1, PWM2, PWM3 and PWM4 are shifted by i*2π / n respectively, and used as the driving signals of the first switch Q1, the second switch Q2, the third switch Q3 and the fourth switch Q4 of the i-th high dynamic pulse current generation module, i=1,…,n, where n is the number of high dynamic pulse current generation modules; S5, I LC_ref with I LC The difference is used for PI calculation to obtain the output value OUT of the third PI controller. LC OUT LC After modulation by the modulator, the drive signals of each auxiliary switch in the current acceleration module are obtained; Specifically, for the introduced half-bridge converter, the output OUT of the third PI controller is... LC The first auxiliary transistor drive signal PWM is obtained after comparison with the carrier signal. a1 The first auxiliary transistor drive signal PWM a1 The second auxiliary transistor drive signal PWM is obtained after inversion. a2 ; For the introduced H-bridge converter, the output of the third PI controller OUT LC The first auxiliary transistor drive signal PWM is obtained after comparison with the carrier signal. a1 With the fourth auxiliary transistor drive signal PWM a4 The first auxiliary transistor drive signal PWM a1 With the fourth auxiliary transistor drive signal PWM a4 The second auxiliary transistor drive signal PWM is obtained after inversion. a2 With the third auxiliary tube drive signal PWM a3 ; For the introduced pulse current generator auxiliary module, the output of the third PI controller is OUT. LC The second auxiliary transistor drive signal PWM is obtained after comparison with the carrier signal. a2 The second auxiliary transistor drive signal PWM a2 The first auxiliary transistor drive signal PWM is obtained after inversion. a1 The second auxiliary transistor drive signal PWM a2 With the first auxiliary tube drive signal PWM a1 After a 180° phase shift, the third auxiliary transistor drive signal PWM is obtained. a3 With the fourth auxiliary transistor drive signal PWM a4 .

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