High-power pulse power supply

Abstract

The invention relates to the technical field of power supply circuits, in particular to a high-power pulse power supply which comprises a generator set, a stabilizing power supply, a load module, a resistor cabinet, a switch cabinet and a control module. A current signal and a voltage signal are transmitted to the control module through the first voltage detection assembly and the first current detection assembly, and the control module controls the on-off of the switch assembly of the switch cabinet according to the current magnitude and the voltage magnitude, so that the corresponding loading resistors are connected in parallel to the main loop. Therefore, the equivalent resistance value between the loading resistor loaded into the main loop and the load module is kept unchanged, and the voltage, current and power output by the stabilizing power supply can be kept unchanged.

Description

Technical Field

[0001] The invention relates to the technical field of power supply circuits, and in particular to a high-power pulse power supply. Background Art

[0002] In modern ship power systems, with the increasing electrification of ships and the diversification of electrical equipment, higher requirements are placed on the stability and reliability of ship power grids. Especially in some special application scenarios, such as large electric propulsion systems and high-power load equipment, it is necessary to ensure the stability and response speed of the power supply system. In order to meet these requirements, the application of smoothing power supply in ship power grids has become particularly important.

[0003] The existing ship power grid is usually powered by 380V AC, while some specific applications (such as electric propulsion systems) require 720V DC power input. In addition, the load equipment will produce a large power surge during operation, which causes a significant power impact on the power grid and affects the stability of the power grid.

[0004] The power output of load equipment is uncertain and may be loaded at any time, which brings great challenges to the power grid. When such loads are suddenly loaded, the front-stage power supply may not be able to meet such a large power output demand due to excessive power.

[0005] If there are no appropriate smoothing measures, this power mutation will cause drastic fluctuations in the bus voltage, which will in turn affect the stability of the entire power grid and the normal operation of other electrical equipment. Summary of the invention

[0006] The purpose of the present invention is to provide a high-power pulse power supply in view of the above-mentioned deficiencies in the prior art.

[0007] The object of the present invention is achieved by the following technical solutions: A high-power pulse power supply, including a generator set, a smoothing power supply, a load module, a resistor cabinet, a switch cabinet and a control module;

[0008] The leveling power supply comprises a first input port, a second input port, a third input port, a first output port and a second output port; the first input port, the second input port and the third input port are respectively connected to the generator set; the first output port and the second output port are respectively connected to the load module;

[0009] The resistor cabinet includes a plurality of loading resistors; the switch cabinet includes a plurality of switch components; one end of each loading resistor is connected to one end of a switch component; the other ends of all loading resistors are connected to the first output port; the other ends of all switch components are connected to the second output port;

[0010] A first current detection component is provided between the first output port and the load module; a first voltage detection component is provided between the first output port and the second output port; and the control module controls the operation of each switch component according to the first current detection component and the first voltage detection component.

[0011] The present invention is further configured such that the control module includes a variable acquisition unit and a PWM control unit; the variable acquisition unit is respectively connected to the first voltage detection component and the first current detection component; and the PWM control unit is used to control the operation of the switch component.

[0012] The present invention is further configured as follows: the switch component includes a switch element and a first switch tube; one end of the loading resistor is connected to one end of the switch element; the other end of the switch element is connected to one end of the switch end of the first switch tube; the other end of the switch end of the first switch tube is connected to the second output port; and the control end of the first switch tube is connected to the PWM control unit.

[0013] The present invention is further configured such that the switch component also includes a second switch tube; one end of the switch end of the second switch tube is connected to the first output port; the other end of the switch end of the second switch tube is connected to one end of the switch end of the first switch tube; and the control end of the second switch tube is connected to the PWM control unit.

[0014] The present invention is further configured such that a second current detection component is provided between the other end of the switch element and one end of the switch end of the first switch tube; and the second current detection component is connected to the variable acquisition unit.

[0015] The present invention is further configured such that a third current detection component is provided between the first input port and the generator set, between the second input port and the generator set, and between the third input port and the generator set; and the third current detection component is connected to the variable acquisition unit.

[0016] The present invention is further configured such that a second voltage detection component is provided between the first input port, the second input port and the third input port and the ground respectively; and the second voltage detection component is connected to the variable acquisition unit.

[0017] The present invention is further configured such that the control module further includes a communication unit; and the communication unit is electrically connected to the resistor cabinet.

[0018] The present invention is further configured such that the control module further includes a state detection unit; and the state detection unit is electrically connected to the switch cabinet.

[0019] The present invention is further configured such that the smoothing power supply includes a soft start module, a rectifier module and a boost module; the first input port, the second input port and the third input port are respectively connected to the input end of the rectifier module through the soft start module; the output end of the rectifier module is connected to the input end of the boost module; the first output port and the second output port are respectively connected to the output end of the boost module.

[0020] Beneficial effects of the present invention: The present invention transmits current signals and voltage signals to the control module through the first voltage detection component and the first current detection component. The control module controls the on and off of the switch components of the switch cabinet according to the current and voltage sizes, so that the corresponding loading resistors are connected in parallel to the total circuit, so that the equivalent resistance value between the loading resistors loaded into the total circuit and the load module remains unchanged, thereby ensuring that the voltage, current and power output by the smoothed power supply remain unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0022] Figure 1 It is a circuit schematic diagram of the present invention;

[0023] Figure 2 It is a circuit principle diagram of the generator set, the leveling power supply and the load module of the present invention;

[0024] Among them: 1. Generator set; 2. Smoothing power supply; 21. First input port; 22. Second input port; 23. Third input port; 24. First output port; 25. Second output port; 3. Load module; 4. Resistance cabinet; 41. Loading resistor; 5. Switch cabinet; 51. Switch element; 52. First switch tube; 53. Second switch tube; 6. Control module; 61. Variable acquisition unit; 62. PWM control unit; 63. Communication unit; 64. Status detection unit; 71. First current detection component; 72. Second current detection component; 73. Third current detection component; 81. First voltage detection component; 82. Second voltage detection component; 91. Soft start module; 92. Rectifier module; 93. Boost module. DETAILED DESCRIPTION

[0025] The present invention is further described in conjunction with the following examples.

[0026] Depend on Figure 1 to Figure 2 It can be seen that the high-power pulse power supply described in this embodiment includes a generator set 1, a smoothing power supply 2, a load module 3, a resistor cabinet 4, a switch cabinet 5 and a control module 6;

[0027] The smoothing power supply 2 includes a first input port 21, a second input port 22, a third input port 23, a first output port 24 and a second output port 25; the first input port 21, the second input port 22 and the third input port 23 are respectively connected to the generator set 1; the first output port 24 and the second output port 25 are respectively connected to the load module 3;

[0028] The resistor cabinet 4 includes a plurality of loading resistors 41; the switch cabinet 5 includes a plurality of switch components; one end of each loading resistor 41 is connected to one end of a switch component; the other ends of all loading resistors 41 are connected to the first output port 24; the other ends of all switch components are connected to the second output port 25;

[0029] A first current detection component 71 is provided between the first output port 24 and the load module 3 ; a first voltage detection component 81 is provided between the first output port 24 and the second output port 25 ; and the control module 6 controls the operation of each switch component according to the first current detection component 71 and the first voltage detection component 81 .

[0030] Specifically, in the high-power pulse power supply described in this embodiment, the generator set 1 provides AC power to the smoothing power supply 2 through the first input port 21, the second input port 22 and the third input port 23, and the smoothing power supply 2 converts the AC power into DC power to power the load module 3; when the load value of the load module 3 changes, the current value of the load module 3 changes, so the first voltage detection component 81 and the first current detection component 71 transmit the current signal and the voltage signal to the control module 6, and the control module 6 controls the switch component of the switch cabinet 5 to be turned on and off according to the current and voltage, so that the corresponding loading resistor 41 is connected in parallel to the total circuit, so that the equivalent resistance value between the loading resistor 41 loaded into the total circuit and the load module 3 remains unchanged, thereby ensuring that the voltage, current and power output by the smoothing power supply 2 remain unchanged.

[0031] In the high-power pulse power supply described in this embodiment, the control module 6 includes a variable acquisition unit 61 and a PWM control unit 62; the variable acquisition unit 61 is connected to the first voltage detection component 81 and the first current detection component 71 respectively; the PWM control unit 62 is used to control the operation of the switch component.

[0032] In the high-power pulse power supply described in this embodiment, the switch component includes a switch element 51 and a first switch tube 52; one end of the loading resistor 41 is connected to one end of the switch element 51; the other end of the switch element 51 is connected to one end of the switch end of the first switch tube 52; the other end of the switch end of the first switch tube 52 is connected to the second output port 25; the control end of the first switch tube 52 is connected to the PWM control unit 62. The first switch tube 52 can be a MOS tube, a triode tube or an IGBT tube, etc.; the user can manually control the on and off of the corresponding loading resistor 41 by pressing the switch element 51; when all the switch elements 51 are closed, the PWM control unit 62 can send a signal to the corresponding first switch tube 52 according to the current signal and voltage signal of the first voltage detection component 81 and the first current detection component 71, so that the corresponding loading resistor 41 is loaded into the loop and connected in parallel with the load module 3.

[0033] In the high-power pulse power supply described in this embodiment, the switch component further includes a second switch tube 53; one end of the switch end of the second switch tube 53 is connected to the first output port 24; the other end of the switch end of the second switch tube 53 is connected to one end of the switch end of the first switch tube 52; the control end of the second switch tube 53 is connected to the PWM control unit 62. The second switch tube 53 can be a MOS tube, a triode tube or an IGBT tube, etc.; in this embodiment, by setting the second switch tube 53, the PWM control unit 62 can control the on and off of the second switch tube 53, so as to short-circuit the load resistor 41.

[0034] In the high-power pulse power supply described in this embodiment, a second current detection component 72 is provided between the other end of the switch element 51 and one end of the switch end of the first switch tube 52; the second current detection component 72 is connected to the variable acquisition unit 61. The above arrangement facilitates the detection of the current value of the loop where the loading resistor 41 is located.

[0035] In the high-power pulse power supply described in this embodiment, a third current detection component 73 is provided between the first input port 21 and the generator set 1, between the second input port 22 and the generator set 1, and between the third input port 23 and the generator set 1; the third current detection component 73 is connected to the variable acquisition unit 61. The above arrangement facilitates the detection of the current value between the generator set 1 and the smoothing power supply 2.

[0036] In the high-power pulse power supply described in this embodiment, a second voltage detection component 82 is provided between the first input port 21, the second input port 22 and the third input port 23 and the ground respectively; the second voltage detection component 82 is connected to the variable acquisition unit 61. The above arrangement facilitates detection of whether the voltage value of the generator set 1 is normal.

[0037] In the high-power pulse power supply described in this embodiment, the control module 6 further includes a communication unit 63; the communication unit 63 is electrically connected to the resistor cabinet 4. The above arrangement facilitates the control module 6 to detect whether the resistor cabinet 4 is abnormal.

[0038] In the high-power pulse power supply described in this embodiment, the control module 6 further includes a state detection unit 64; the state detection unit 64 is electrically connected to the switch cabinet 5. The above arrangement facilitates the control module 6 to detect whether the switch cabinet 5 is abnormal.

[0039] In the high-power pulse power supply described in this embodiment, the smoothing power supply 2 includes a soft start module 91, a rectifier module 92 and a boost module 93; the first input port 21, the second input port 22 and the third input port 23 are respectively connected to the input end of the rectifier module 92 through the soft start module 91; the output end of the rectifier module 92 is connected to the input end of the boost module 93; the first output port 24 and the second output port 25 are respectively connected to the output end of the boost module 93. In this embodiment, by setting the soft start module 91, before the generator set 1 provides the rectifier module 92 with AC power, a soft start can be performed first, so as to protect the smoothing power supply 2; then the rectifier module 92 rectifies the AC power into a DC power, and then boosts the power through the boost module 93 to supply power to the load module 3.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A high-power pulse power supply, characterized in that: It comprises a generator set (1), a smoothing power supply (2), a load module (3), a resistor cabinet (4), a switch cabinet (5) and a control module (6); The leveling power supply (2) comprises a first input port (21), a second input port (22), a third input port (23), a first output port (24) and a second output port (25); the first input port (21), the second input port (22) and the third input port (23) are respectively connected to the generator set (1); the first output port (24) and the second output port (25) are respectively connected to the load module (3); The resistor cabinet (4) comprises a plurality of loading resistors (41); the switch cabinet (5) comprises a plurality of switch components; one end of each loading resistor (41) is connected to one end of a switch component; the other ends of all the loading resistors (41) are connected to the first output port (24); and the other ends of all the switch components are connected to the second output port (25); A first current detection component (71) is provided between the first output port (24) and the load module (3); a first voltage detection component (81) is provided between the first output port (24) and the second output port (25); and the control module (6) controls the operation of each switch component according to the first current detection component (71) and the first voltage detection component (81).

2. A high-power pulse power supply according to claim 1, characterized in that: The control module (6) comprises a variable acquisition unit (61) and a PWM control unit (62); the variable acquisition unit (61) is connected to a first voltage detection component (81) and a first current detection component (71) respectively; the PWM control unit (62) is used to control the operation of the switch component.

3. A high-power pulse power supply according to claim 2, characterized in that: The switch assembly comprises a switch element (51) and a first switch tube (52); one end of the loading resistor (41) is connected to one end of the switch element (51); the other end of the switch element (51) is connected to one end of a switch end of the first switch tube (52); the other end of the switch end of the first switch tube (52) is connected to a second output port (25); and the control end of the first switch tube (52) is connected to a PWM control unit (62).

4. A high-power pulse power supply according to claim 3, characterized in that: The switch assembly further comprises a second switch tube (53); one end of the switch end of the second switch tube (53) is connected to the first output port (24); the other end of the switch end of the second switch tube (53) is connected to one end of the switch end of the first switch tube (52); and the control end of the second switch tube (53) is connected to a PWM control unit (62).

5. A high-power pulse power supply according to claim 3, characterized in that: A second current detection component (72) is provided between the other end of the switch element (51) and one end of the switch end of the first switch tube (52); the second current detection component (72) is connected to the variable acquisition unit (61).

6. A high-power pulse power supply according to claim 2, characterized in that: A third current detection component (73) is provided between the first input port (21) and the generator set (1), between the second input port (22) and the generator set (1), and between the third input port (23) and the generator set (1); the third current detection component (73) is connected to the variable acquisition unit (61).

7. A high-power pulse power supply according to claim 2, characterized in that: A second voltage detection component (82) is provided between the first input port (21), the second input port (22) and the third input port (23) and the ground respectively; the second voltage detection component (82) is connected to the variable acquisition unit (61).

8. A high-power pulse power supply according to claim 2, characterized in that: The control module (6) further comprises a communication unit (63); the communication unit (63) is electrically connected to the resistance cabinet (4).

9. A high-power pulse power supply according to claim 2, characterized in that: The control module (6) further comprises a state detection unit (64); the state detection unit (64) is electrically connected to the switch cabinet (5).

10. A high-power pulse power supply according to claim 1, characterized in that: The smoothing power supply (2) comprises a soft start module (91), a rectifier module (92) and a boost module (93); the first input port (21), the second input port (22) and the third input port (23) are respectively connected to the input end of the rectifier module (92) through the soft start module (91); the output end of the rectifier module (92) is connected to the input end of the boost module (93); the first output port (24) and the second output port (25) are respectively connected to the output end of the boost module (93).

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