Novel distributed power supply device of DCS (Distributed Control System)

Abstract

The utility model belongs to the technical field of power supplies, and particularly discloses a novel distributed power supply device of a DCS (Distributed Control System), which comprises four power supply modules and three interface boards P9, P10 and P11, the four power supply modules are respectively a main line power supply module P1, a primary auxiliary power supply module P2, an auxiliary line power supply module P3 and a secondary auxiliary power supply module P4, and each of the interface boards P9, P10 and P11 is provided with seven interfaces. According to the scheme, the power supply device of the DCS system is replaced, replaced and transformed, an old power supply module adopting a cooling fan is canceled, and power supply configuration is optimized. The maximum benefit can be created with the shortest time and the least investment, and the comprehensive control capability and the production management level of the unit auxiliary control DCS control system are improved. By means of dispersive arrangement, heat dissipation is good, a cooling fan does not need to be arranged, dust resistance is high, operation is safer and more reliable, the service life is longer, the requirements of various operation working conditions are met, and safe and efficient operation of a unit is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply technical field, concretely is DCS system novel decentralized power supply device. BACKGROUND

[0002] As Figure 3 , 4 As shown in the figure, the current some auxiliary machine DCS system adopts the control system of OVATION. In the OVATION system, the controller and I / O module are powered by the DC load driven by the bipolar transistor, these power modules can provide 24VDC voltage output, and can provide 48VDC auxiliary power supply according to the need. In addition, the system is also equipped with modular power components: 1X00781H01L module, the module has high power transistor and field effect tube, can provide stable current output for the load in the system. Each pair of controller is configured with two sets of modular power components, two sets of power components are redundantly configured, and each set of power component simultaneously powers the redundantly configured controller. Each set of power component is provided with an exhaust fan to cool the power supply.

[0003] The unit DCS system runs for a long time, the power module has the problem of serious aging, the cooling fan abnormal sound and stop phenomenon increases day by day, leading to poor heat dissipation, high failure rate. When the fan stops, it is easy to cause power component failure, and the redundantly configured controller cannot be normally powered, at this time, the controller is powered by only one set of power component, if the power component fails, the controller has no power supply, the reliability is poor, and it brings major safety hazards to daily production. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing DCS system novel decentralized power supply device, to solve the problem in the prior art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: DCS system novel decentralized power supply device, comprising:

[0006] Four power modules and three interface boards P9, P10, P11, four power modules are main line power module P1, primary auxiliary power module P2, vice main line power module P3 and secondary auxiliary power module P4 respectively, interface board P9, P10, P11 all have seven interfaces, which are P1 / +24V, P3 / +24V, PGND1, P3 / P4 / status, P1 / P2 / status, PGND2, P2 / P4 / +24V respectively;

[0007] Among them, the power module is provided with four interfaces, the interface 1 of the main line power module P1 is connected with P1 / +24V of the interface board P9, P10, P11,

[0008] The main power module P1 is connected to interface 4, the primary auxiliary power module P2 is connected to interface 3, and the secondary power module P3 is connected to interface 4 and the secondary auxiliary power module P4.

[0009] The primary auxiliary power module P2 has its interface 1 connected to a reverse parallel diode D1, and the secondary auxiliary power module P4 has its interface 1 connected to a reverse parallel diode D2. The reverse parallel diodes D1 and D2 are connected to one end of the fuse F1 and one end of the resistor 1R. The other end of the resistor 1R is connected to the positive terminal of the LED. The negative terminal of the LED and the other end of the fuse F1 are connected and then connected to P2 / P4 / +24V of the interface boards P9, P10, and P11.

[0010] The interface 4 of the secondary auxiliary power module P4 is connected to P3 / P4 / status of interface boards P9, P10, and P11, and the interface 4 of the primary auxiliary power module P2 is connected to P1 / P2 / status of interface boards P9, P10, and P11.

[0011] Preferably, indicator light LED1 and resistor R1 are connected between interface 2 and interface 1 of the main power module P1, indicator light LED2 and resistor R2 are connected between interface 2 and interface 1 of the primary auxiliary power module P2, indicator light LED3 and resistor R3 are connected between interface 2 and interface 1 of the secondary power module P3, and indicator light LED4 and resistor R4 are connected between interface 2 and interface 1 of the secondary auxiliary power module P4.

[0012] Preferably, interface 3 of the main power supply module P1 is connected to interface 2 of the main power supply module P1, interface board PGND J10, interface 2 of the secondary power supply module P3, and interface 3 of the secondary power supply module P3. Interface board PGND J10 is connected to interface board AUXGND J11. Interface board AUXGND J11 is connected to interface 2 of the primary auxiliary power supply module P2 and interface 2 of the secondary auxiliary power supply module P4. Furthermore, interface board PGND J10 and interface board AUXGND J11 are grounded.

[0013] Preferably, the system also includes cabinet door fan interface boards P12 and P13. Interface 1 of the main power module P1 is connected to the positive terminal of diode D3, and the negative terminal of diode D3 is connected to P1 / P3 / +24V of cabinet door fan interface boards P12 and P13. Interface 1 of the secondary power module P3 is connected to the positive terminal of diode D4, and the negative terminal of diode D4 is connected to P1 / P3 / +24V of cabinet door fan interface boards P12 and P13. Interface 3 of the main power module P1 and the secondary power module P3 is connected to interface board PGND J12. Interface board PGND J12 is connected to and grounded to the PGND of cabinet door fan interface boards P12 and P13. The PGND of cabinet door fan interface boards P12 and P13 is also connected to and grounded to the PGND1 and PGND2 of interface boards P9, P10, and P11.

[0014] Preferably, the diodes D3 and D4 are also connected to fuses F3 and F4 respectively on the P1 / P3 / +24V connection lines of the cabinet door fan interface boards P12 and P13.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This solution replaces and upgrades the power supply unit of the DCS system, eliminating the old power module with a cooling fan and optimizing the power configuration. It maximizes efficiency with minimal time and investment, improving the overall control capabilities and production management level of the unit's auxiliary control DCS system. The distributed layout provides excellent heat dissipation, eliminating the need for cooling fans, enhances dust resistance, ensures safer and more reliable operation, extends service life, meets the requirements of various operating conditions, and ensures the safe and efficient operation of the unit. Attached Figure Description

[0017] Figure 1 This is the circuit schematic diagram of this utility model;

[0018] Figure 2 This is a wiring diagram for use of this utility model;

[0019] Figure 3 The circuit schematic of the power supply for an existing DCS system;

[0020] Figure 4 This is a wiring diagram for the power supply of an existing DCS system. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Example 1:

[0024] Please see Figures 1-2 This utility model provides a technical solution: a novel distributed power supply device for DCS system, comprising: four power modules and three interface boards P9, P10, and P11.

[0025] The four power modules are a main power module P1, a primary auxiliary power module P2, a secondary power module P3, and a secondary auxiliary power module P4. Interface boards P9, P10, and P11 each have seven interfaces: P1 / +24V, P3 / +24V, PGND1, P3 / P4 / status, P1 / P2 / status, PGND2, and P2 / P4 / +24V. Each power module has four interfaces. Interface 1 of the main power module P1 is connected to the P1 / +24V of interface boards P9, P10, and P11. Interface 4 of the main power module P1 is connected to interface 3 of the primary auxiliary power module P2. Interface 4 of the secondary auxiliary power module P3 is connected to interface 3 of the secondary auxiliary power module P4. The primary auxiliary power module P2's interface 1 is connected to a reverse parallel diode D1, and the secondary auxiliary power module P4's interface 1 is connected to a reverse parallel diode D2. The reverse parallel diodes D1 and D2 are connected to one end of fuse F1 and one end of resistor 1R. The other end of resistor 1R is connected to the positive terminal of the LED. The negative terminal of the LED and the other end of fuse F1 are connected and then connected to P2 / P4 / +24V of interface boards P9, P10, and P11. The secondary auxiliary power module P4's interface 4 is connected to P3 / P4 / status of interface boards P9, P10, and P11, and the primary auxiliary power module P2's interface 4 is connected to P1 / P2 / status of interface boards P9, P10, and P11.

[0026] Analysis of the above: Each pair of controllers is powered by four power modules: two power the main controller (redundant configuration) and two power the auxiliary controller (redundant configuration). Even if one power module fails, one power module still supplies power to the corresponding controller, while the other controller remains unaffected. Even if up to three power modules fail, one controller can still operate normally, and the unit remains unaffected. Therefore, this patent greatly improves the reliability of power supply in a DCS system.

[0027] In addition, the use of new power supply modules saves costs and reduces upgrade and retrofit expenses compared to old power supply modules.

[0028] Example 2:

[0029] Please see Figures 1-2This utility model provides a technical solution based on Embodiment 1: An indicator light LED1 and a resistor R1 are connected between interface 2 and interface 1 of the main power module P1; an indicator light LED2 and a resistor R2 are connected between interface 2 and interface 1 of the primary auxiliary power module P2; an indicator light LED3 and a resistor R3 are connected between interface 2 and interface 1 of the secondary power module P3; and an indicator light LED4 and a resistor R4 are connected between interface 2 and interface 1 of the secondary auxiliary power module P4. Interface 3 of the main power module P1 is connected to interface 2 of the main power module P1, interface board PGND J10, interface 2 of the secondary power module P3, and interface 3 of the secondary power module P3. Interface board PGND J10 is connected to interface board AUXGND J11. Interface board AUXGND J11 is connected to interface 2 of the primary auxiliary power module P2 and interface 2 of the secondary auxiliary power module P4, and interface board PGND J10 and interface board AUXGND J11 are grounded.

[0030] Analysis of the above: Indicator lights LED1, LED2, LED3, and LED4 serve an indicative function and are connected between interface 1 and interface 2 of the power module. Figure 2 As shown, indicator lights LED1, LED2, LED3, and LED4 are arranged horizontally and are used to indicate the working status of the main power module P1, the primary auxiliary power module P2, the secondary power module P3, and the secondary auxiliary power module P4, respectively.

[0031] Example 3:

[0032] Please see Figures 1-2 This utility model provides a technical solution based on Embodiment 2: it further includes cabinet door fan interface boards P12 and P13. The interface 1 of the main power module P1 is connected to the positive terminal of diode D3, and the negative terminal of diode D3 is connected to P1 / P3 / +24V of cabinet door fan interface boards P12 and P13. The interface 1 of the secondary power module P3 is connected to the positive terminal of diode D4, and the negative terminal of diode D4 is connected to P1 / P3 / +24V of cabinet door fan interface boards P12 and P13. The interface 3 of the main power module P1 and the secondary power module P3 is connected to the interface board PGND J12. The interface board PGND J12 is connected to the PGND of cabinet door fan interface boards P12 and P13 and grounded. The PGND of cabinet door fan interface boards P12 and P13 is also connected to the PGND1 and PGND2 of interface boards P9, P10, and P11 and grounded. Fuse F3 and F4 are also connected to the P1 / P3 / +24V connection lines of diodes D3 and D4 and cabinet door fan interface boards P12 and P13, respectively.

[0033] Analysis of the above content: The coordination between interface board PGND J10, interface board AUXGND J11, and interface board PGND J12 is used for circuit grounding in this solution, and the settings of interface board P12 and P13 on the cabinet door fan are used for power supply to the fan on the cabinet door (whether a fan is needed depends on the usage requirements).

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new type of decentralized power supply device for DCS system, characterized in that, Comprise: Four power modules and three interface boards P9, P10, P11, the four power modules are main line power module P1, primary auxiliary power module P2, secondary line power module P3 and secondary auxiliary power module P4, the interface boards P9, P10, P11 all have seven interfaces, which are P1 / +24V, P3 / +24V, PGND1, P3 / P4 / status, P1 / P2 / status, PGND2, P2 / P4 / +24V; Among them, the power module is provided with four interfaces, the interface 1 of the main line power module P1 is connected with P1 / +24V of the interface board P9, P10, P11; The interface 4 of the main line power module P1 and the interface 3 of the primary auxiliary power module P2 are connected, and the interface 4 of the secondary line power module P3 and the interface 3 of the secondary auxiliary power module P4 are connected; The interface 1 of the primary auxiliary power module P2 is connected with reverse parallel diode D1, the interface 1 of the secondary auxiliary power module P4 is connected with reverse parallel diode D2, the reverse parallel diode D1 and the reverse parallel diode D2 are connected and connected with one end of fuse F1 and one end of resistor 1R, the other end of the resistor 1R is connected with the positive electrode of LED, the negative electrode of the LED and the other end of the fuse F1 are connected and connected with P2 / P4 / +24V of the interface board P9, P10, P11; The interface 4 of the secondary auxiliary power module P4 is connected with P3 / P4 / status of the interface board P9, P10, P11, and the interface 4 of the primary auxiliary power module P2 is connected with P1 / P2 / status of the interface board P9, P10, P11.

2. The DCS system new decentralized power supply device according to claim 1, characterized in that: The interface 2 and the interface 1 of the main line power module P1 are connected with indicating lamp LED1 and resistor R1, the interface 2 and the interface 1 of the primary auxiliary power module P2 are connected with indicating lamp LED2 and resistor R2, the interface 2 and the interface 1 of the secondary line power module P3 are connected with indicating lamp LED3 and resistor R3, and the interface 2 and the interface 1 of the secondary auxiliary power module P4 are connected with indicating lamp LED4 and resistor R4.

3. The DCS system new decentralized power supply device according to claim 2, characterized in that: The interface 3 of the main line power module P1 is connected with the interface 2 of the main line power module P1, the interface board PGND J10, the interface 2 of the secondary line power module P3 and the interface 3 of the secondary line power module P3, the interface board PGND J10 is connected with the interface board AUXGND J11, the interface board AUXGND J11 is connected with the interface 2 of the primary auxiliary power module P2 and the interface 2 of the secondary auxiliary power module P4, and the interface board PGND J10 and the interface board AUXGND J11 are grounded.

4. The DCS system new decentralized power supply device according to claim 3, characterized in that: The cabinet door fan interface board P12, P13 is further included, the interface 1 of the main trunk line power module P1 is connected with the positive pole of the diode D3, the negative pole of the diode D3 is connected with the P1 / P3 / +24V of the cabinet door fan interface board P12, P13, the interface 1 of the auxiliary trunk line power module P3 is connected with the positive pole of the diode D4, the negative pole of the diode D4 is connected with the P1 / P3 / +24V of the cabinet door fan interface board P12, P13, the interface 3 of the main trunk line power module P1 and the auxiliary trunk line power module P3 is connected with the interface board PGND J12, the interface board PGND J12 is connected with the PGND of the cabinet door fan interface board P12, P13 and grounded, the PGND of the cabinet door fan interface board P12, P13 is further connected with the PGND1, PGND2 of the interface board P9, P10, P11 and grounded.

5. The DCS system new decentralized power supply device according to claim 4, characterized in that: The connecting line of the diode D3, diode D4 and the P1 / P3 / +24V of the cabinet door fan interface board P12, P13 is further connected with the fuse F3, F4 respectively.

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