A synchronous voltage automatic switching reduction power regulating system

Abstract

The utility model discloses a kind of reduction power regulating systems of automatic switching of synchronous voltage, including M-phase synchronous power supply, M-phase synchronous power supply is A1, B1 or C1-phase synchronous power supply;N-phase synchronous power supply;The voltage phase of N-phase synchronous power supply and the voltage phase of M-phase synchronous power supply are different by 180°;M-phase clamp voltage switching device, M-phase clamp voltage switching device is connected with M-phase synchronous power supply and N-phase synchronous power supply;N-phase clamp voltage switching device, N-phase clamp voltage switching device is connected with M-phase synchronous power supply and N-phase synchronous power supply;M-phase controller, M-phase controller is connected with M-phase clamp voltage switching device;N-phase controller, N-phase controller is connected with N-phase clamp voltage switching device.

Description

Technical Field

[0001] This utility model relates to the field of polycrystalline silicon reduction power supply technology, and in particular to a reduction power regulation system with automatic synchronous voltage switching. Background Technology

[0002] In modern polysilicon reduction power supply systems, most systems consist of 40 pairs of rods divided into six phases. A1 and C1 each have 6 pairs of rods, B1 has 4 pairs, and A2, B2, and C2 each have 8 pairs. On the high-voltage side, the three phases A, B, and C pass through the six-phase coils of the reduction transformer, resulting in six phases on the low-voltage side: A1 and A2, B1 and B2, and C1 and C2. When a single phase (A1 and A2, B1 and B2, C1 and C2) of the reduction power supply system is being powered and adjusted, the controller takes a voltage waveform from the power supply side as a synchronization voltage waveform. This waveform is used to adjust the switching angle of the thyristor, a crucial component for power adjustment, according to the sinusoidal AC phase.

[0003] As attached Figure 1 As shown, the existing polysilicon reduction power supply system is currently designed with only one synchronous power supply for each phase. If the single-phase synchronous voltage acquisition circuit fails and the controller is unable to acquire the synchronous voltage of that phase, the phase will stop, affecting the operation of the reduction furnace and the polysilicon production. Utility Model Content

[0004] This invention addresses the problem that existing polysilicon reduction power supply systems only have one synchronous power supply per phase. If the single-phase synchronous voltage acquisition circuit fails, causing the controller to be unable to acquire the synchronous voltage of that phase, the phase will stop, affecting the operation of the reduction furnace and the polysilicon yield. The invention provides a reduction power adjustment system with automatic synchronous voltage switching.

[0005] The technical solution adopted in this utility model is:

[0006] A synchronous voltage-switching power regulation system includes:

[0007] M-phase synchronous power supply, which is A1, B1 or C1 phase synchronous power supply;

[0008] N-phase synchronous power supply, which can be A2, B2 or C2 phase synchronous power supply; the voltage phase of the N-phase synchronous power supply is 180° out of phase with the voltage phase of the M-phase synchronous power supply.

[0009] The M-phase clamping and switching device is connected to the M-phase synchronous power supply and the N-phase synchronous power supply.

[0010] The N-phase clamping and switching device is connected to the M-phase synchronous power supply and the N-phase synchronous power supply.

[0011] M-phase controller, the M-phase controller is connected to the M-phase clamping and switching device;

[0012] The N-phase controller is connected to the N-phase clamping and switching device.

[0013] When the system is running normally, the M-phase controller is powered by the M-phase synchronous power supply, and the N-phase controller is powered by the N-phase synchronous power supply. When the synchronous voltage of the M-phase controller is lost, the M-phase clamping switching device automatically connects the M-phase controller to the N-phase synchronous power supply and restarts it within time t. When the synchronous voltage of the N-phase controller is lost, the N-phase clamping switching device automatically connects the N-phase controller to the M-phase synchronous power supply and restarts it within time t, thus solving the problem of phase loss in the reduction furnace caused by single-phase shutdown.

[0014] Furthermore, the time t is no greater than 8ms.

[0015] Furthermore, the input terminals of both the M-phase clamping and switching device and the N-phase clamping and switching device include two live wire terminals L and two neutral wire terminals N, and the output terminals of both the M-phase clamping and switching device and the N-phase clamping and switching device include one live wire terminal L and one neutral wire terminal N.

[0016] Both the M-phase synchronous power supply and the N-phase synchronous power supply have a live wire terminal L and a neutral wire terminal N at their output terminals.

[0017] Both the M-phase controller and the N-phase controller have an input terminal consisting of a live wire terminal L and a neutral wire terminal N.

[0018] Furthermore,

[0019] One of the live wire terminals L of the M-phase clamping and switching device is connected to the live wire terminal L of the M-phase synchronous power supply;

[0020] The other live wire L of the M-phase clamping and switching device is connected to the neutral wire N of the N-phase synchronous power supply.

[0021] One of the neutral terminals N of the M-phase clamping and switching device is connected to the neutral terminal N of the M-phase synchronous power supply;

[0022] The other neutral terminal N of the M-phase clamping and switching device is connected to the live terminal L of the N-phase synchronous power supply.

[0023] One of the live wire terminals L of the N-phase clamping and switching device is connected to the live wire terminal L of the M-phase synchronous power supply;

[0024] The other live wire L of the N-phase clamping and switching device is connected to the neutral wire N of the N-phase synchronous power supply.

[0025] One of the neutral terminals N of the N-phase clamping and switching device is connected to the neutral terminal N of the M-phase synchronous power supply;

[0026] The other neutral terminal N of the N-phase clamping and switching device is connected to the live terminal L of the N-phase synchronous power supply.

[0027] Furthermore, the M-phase clamping switching device can detect whether the voltage output by the M-phase synchronous power supply matches the operating voltage of the M-phase controller.

[0028] Furthermore, the N-phase clamping switching device can detect whether the voltage output by the N-phase synchronous power supply matches the operating voltage of the N-phase controller.

[0029] Furthermore, the clamping and switching device for the M phase is the HZDL-A802 model clamping and switching device from Chengdu Holmes Electric Co., Ltd.

[0030] Furthermore, the N-phase clamping and switching device selected is the HZDL-A802 model clamping and switching device from Chengdu Holmes Electric Co., Ltd.

[0031] Furthermore, the live wire L of the output terminal of the M-phase clamping and switching device is connected to the live wire L of the M-phase controller; the neutral wire N of the output terminal of the M-phase clamping and switching device is connected to the neutral wire N of the M-phase controller.

[0032] Furthermore, the live wire L of the output terminal of the N-phase clamping switching device is connected to the live wire L of the N-phase controller; the neutral wire N of the output terminal of the N-phase clamping switching device is connected to the neutral wire N of the N-phase controller.

[0033] The beneficial effects of this utility model are:

[0034] The automatic switching synchronous voltage reduction power regulation system disclosed in this utility model uses a clamping switching device. When the synchronous voltage of the M-phase or N-phase controller is lost, the clamping switching device can automatically switch to the corresponding backup synchronous power supply and restart within a certain period of time. This effectively solves the problem of single-phase shutdown caused by single-phase synchronous voltage acquisition failure, avoids phase loss operation of the reduction furnace, ensures the continuity and stability of the polysilicon reduction power supply system, and reduces the impact on the operation of the reduction furnace and polysilicon production. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 Connection diagram of the existing power regulation system;

[0037] Figure 2 Connection diagram for a synchronous voltage-switching power regulation system;

[0038] Figure 3 This is a connection diagram of a synchronous voltage-switching power regulation system with A1 and A2 as examples. Detailed Implementation

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0041] The embodiments of the utility model will now be described in detail with reference to the accompanying drawings.

[0042] As attached Figure 2 As shown, the synchronous voltage-automatic-switching power regulation system disclosed in this embodiment includes the following components: M-phase synchronous power supply, N-phase synchronous power supply, M-phase clamping switching device, N-phase clamping switching device, M-phase controller, and N-phase controller.

[0043] The M-phase synchronization power supply is the A1, B1, or C1 phase synchronization power supply;

[0044] The N-phase synchronous power supply is either phase A2, B2, or C2; the voltage waveforms of the N-phase synchronous power supply are the same, but their phases differ from those of the M-phase synchronous power supply by 180° (A1 and A2, B1 and B2, C1 and C2); Appendix Figure 3 The diagram shows the connection of a synchronous voltage-switching power regulation system with automatic switching, taking A1 and A2 as examples.

[0045] The M-phase clamping and switching device is connected to the M-phase synchronous power supply and the N-phase synchronous power supply;

[0046] The N-phase clamping and switching device is connected to both the M-phase and N-phase synchronous power supplies.

[0047] The M-phase controller is connected to the M-phase clamping and switching device;

[0048] The N-phase controller is connected to the N-phase clamping and switching device;

[0049] When the system is running normally, the M-phase controller is powered by the M-phase synchronous power supply, and the N-phase controller is powered by the N-phase synchronous power supply. When the synchronous voltage of the M-phase controller is lost, within time t, the M-phase clamping switching device automatically connects the M-phase controller to the N-phase synchronous power supply and restarts it.

[0050] When the N-phase controller synchronization voltage is lost, within time t, the N-phase clamping switching device automatically connects the N-phase controller to the M-phase synchronization power supply and restarts it, thus solving the problem of phase loss in the reduction furnace caused by single-phase shutdown.

[0051] The beneficial effects of the above technical solution are as follows: The synchronous voltage-switching reduction power regulation system disclosed in this embodiment can automatically switch to the corresponding backup synchronous power supply and restart within a certain period of time when the synchronous voltage of the M-phase or N-phase controller is lost through the clamping switching device. This effectively solves the problem of single-phase shutdown caused by single-phase synchronous voltage acquisition failure, avoids phase loss operation of the reduction furnace, ensures the continuity and stability of the polysilicon reduction power supply system, and reduces the impact on the operation of the reduction furnace and the polysilicon yield.

[0052] Furthermore, the time t is no greater than 8ms.

[0053] Furthermore, the input terminals of both the M-phase clamping and switching device and the N-phase clamping and switching device include two live wire terminals L and two neutral wire terminals N, and the output terminals of both the M-phase clamping and switching device and the N-phase clamping and switching device include one live wire terminal L and one neutral wire terminal N.

[0054] Both the M-phase synchronous power supply and the N-phase synchronous power supply have a live wire terminal L and a neutral wire terminal N at their output terminals.

[0055] Both the M-phase controller and the N-phase controller have an input terminal consisting of a live wire terminal L and a neutral wire terminal N.

[0056] Furthermore, because the winding directions of the coils on the reduction transformer side are opposite for the two phases (A1 and A2, B1 and B2, C1 and C2), the voltage waveforms are 180° out of phase despite being in phase. This 180° phase difference means that simply swapping the neutral and live wires of the two phases will yield the same voltage waveform, achieving redundancy for two-phase synchronous voltage. Therefore:

[0057] One of the live wire terminals L of the M-phase clamping and switching device is connected to the live wire terminal L of the M-phase synchronous power supply;

[0058] The other live wire L of the M-phase clamping and switching device is connected to the neutral wire N of the N-phase synchronous power supply.

[0059] One of the neutral terminals N of the M-phase clamping and switching device is connected to the neutral terminal N of the M-phase synchronous power supply;

[0060] The other neutral terminal N of the M-phase clamping and switching device is connected to the live terminal L of the N-phase synchronous power supply.

[0061] One of the live wire terminals L of the N-phase clamping and switching device is connected to the live wire terminal L of the M-phase synchronous power supply;

[0062] The other live wire L of the N-phase clamping and switching device is connected to the neutral wire N of the N-phase synchronous power supply.

[0063] One of the neutral terminals N of the N-phase clamping and switching device is connected to the neutral terminal N of the M-phase synchronous power supply;

[0064] The other neutral terminal N of the N-phase clamping and switching device is connected to the live terminal L of the N-phase synchronous power supply.

[0065] Furthermore, since the synchronous voltage value is specifically 40V-70V, it cannot be used with the common 380V, 220V and 110V dual power supply devices in electrical systems. Therefore, the M-phase clamping switching device can detect whether the voltage output of the M-phase synchronous power supply matches the operating voltage of the M-phase controller.

[0066] Furthermore, the N-phase clamping switching device can detect whether the voltage output by the N-phase synchronous power supply matches the operating voltage of the N-phase controller.

[0067] Furthermore, the M-phase clamping switching device selected is the HZDL-A802 model from Chengdu Holmes Electric Co., Ltd. This phase clamping switching device can automatically connect the M-phase controller to the N-phase synchronous power supply and restart it within time t when the M-phase controller synchronization voltage is lost. It can also detect the voltage output of either the M-phase or N-phase synchronous power supply.

[0068] Furthermore, the N-phase clamping switching device selected is the HZDL-A802 model clamping switching device from Chengdu Holmes Electric Co., Ltd. This phase clamping switching device can automatically connect the N-phase controller to the M-phase synchronous power supply and restart it within time t when the N-phase controller synchronization voltage is lost. It can also detect the voltage output of either the M-phase or N-phase synchronous power supply.

[0069] Furthermore, the live wire L of the output terminal of the M-phase clamping and switching device is connected to the live wire L of the M-phase controller; the neutral wire N of the output terminal of the M-phase clamping and switching device is connected to the neutral wire N of the M-phase controller.

[0070] Furthermore, the live wire L of the output terminal of the N-phase clamping switching device is connected to the live wire L of the N-phase controller; the neutral wire N of the output terminal of the N-phase clamping switching device is connected to the neutral wire N of the N-phase controller.

Claims

1. A synchronous voltage-automatically-switching power regulation system, characterized in that, include: M-phase synchronous power supply, which is A1, B1 or C1 phase synchronous power supply; N-phase synchronous power supply, which can be A2, B2 or C2 phase synchronous power supply; the voltage phase of the N-phase synchronous power supply is 180° out of phase with the voltage phase of the M-phase synchronous power supply. The M-phase clamping and switching device is connected to the M-phase synchronous power supply and the N-phase synchronous power supply. The N-phase clamping and switching device is connected to the M-phase synchronous power supply and the N-phase synchronous power supply. M-phase controller, the M-phase controller is connected to the M-phase clamping and switching device; The N-phase controller is connected to the N-phase clamping and switching device. When the system is running normally, the M-phase controller is powered by the M-phase synchronous power supply, and the N-phase controller is powered by the N-phase synchronous power supply. When the synchronous voltage of the M-phase controller is lost, within time t, the M-phase clamping switching device automatically connects the M-phase controller to the N-phase synchronous power supply and restarts it. When the N-phase controller synchronization voltage is lost, within time t, the N-phase clamping switching device automatically connects the N-phase controller to the M-phase synchronization power supply and restarts it, thus solving the problem of phase loss in the reduction furnace caused by single-phase shutdown.

2. The synchronous voltage-automatically-switching power regulation system according to claim 1, characterized in that, The time t is no greater than 8ms.

3. The synchronous voltage-automatically-switching power regulation system according to claim 1, characterized in that, Both the M-phase clamping and switching device and the N-phase clamping and switching device have two live wire terminals L and two neutral wire terminals N at their input terminals, and both have one live wire terminal L and one neutral wire terminal N at their output terminals. Both the M-phase synchronous power supply and the N-phase synchronous power supply have a live wire terminal L and a neutral wire terminal N at their output terminals. Both the M-phase controller and the N-phase controller have an input terminal consisting of a live wire terminal L and a neutral wire terminal N.

4. The synchronous voltage-automatically-switching power regulation system according to claim 3, characterized in that, One of the live wire terminals L of the M-phase clamping and switching device is connected to the live wire terminal L of the M-phase synchronous power supply; The other live wire L of the M-phase clamping and switching device is connected to the neutral wire N of the N-phase synchronous power supply. One of the neutral terminals N of the M-phase clamping and switching device is connected to the neutral terminal N of the M-phase synchronous power supply; The other neutral terminal N of the M-phase clamping and switching device is connected to the live terminal L of the N-phase synchronous power supply. One of the live wire terminals L of the N-phase clamping and switching device is connected to the live wire terminal L of the M-phase synchronous power supply; The other live wire L of the N-phase clamping and switching device is connected to the neutral wire N of the N-phase synchronous power supply. One of the neutral terminals N of the N-phase clamping and switching device is connected to the neutral terminal N of the M-phase synchronous power supply; The other neutral terminal N of the N-phase clamping and switching device is connected to the live terminal L of the N-phase synchronous power supply.

5. The synchronous voltage-automatically-switching power regulation system according to claim 1, characterized in that, The M-phase clamping and switching device can detect whether the voltage output by the M-phase synchronous power supply matches the operating voltage of the M-phase controller.

6. The synchronous voltage-automatically-switching restoration power regulation system according to any one of claims 1-5, characterized in that, The N-phase clamping switching device can detect whether the voltage output of the N-phase synchronous power supply matches the operating voltage of the N-phase controller.

7. The synchronous voltage-automatically-switching power regulation system according to claim 5 or 6, characterized in that, The M-phase clamping and switching device selected is the HZDL-A802 model clamping and switching device from Chengdu Holmes Electric Co., Ltd.

8. The synchronous voltage-automatically-switching restoration power regulation system according to claim 5 or 6, characterized in that, The N-phase clamping and switching device selected is the HZDL-A802 model clamping and switching device from Chengdu Holmes Electric Co., Ltd.

9. The synchronous voltage-automatically-switching power regulation system according to any one of claims 1-5, characterized in that, The live wire L of the output terminal of the M-phase clamping and switching device is connected to the live wire L of the M-phase controller; the neutral wire N of the output terminal of the M-phase clamping and switching device is connected to the neutral wire N of the M-phase controller.

10. The synchronous voltage-automatically-switching power regulation system according to any one of claims 1-5, characterized in that, The live wire L of the output terminal of the N-phase clamping switching device is connected to the live wire L of the N-phase controller; the neutral wire N of the output terminal of the N-phase clamping switching device is connected to the neutral wire N of the N-phase controller.

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