CN224177922U

CN224177922U - A computer room optoelectronic complementary power supply system

Info

Publication number: CN224177922U
Application number: CN202521008413.4U
Authority: CN
Inventors: 瞿永刚; 袁月波
Original assignee: Kunming Jinshi Electronic Engineering Technology Co ltd
Current assignee: Kunming Jinshi Electronic Engineering Technology Co ltd
Priority date: 2025-05-21
Filing date: 2025-05-21
Publication date: 2026-04-28
Anticipated expiration: 2035-05-21

Abstract

This utility model relates to a photovoltaic complementary power supply system for a computer room, belonging to the field of photovoltaic complementary power supply technology. It includes a mains power access module, a solar photovoltaic array, AC loads, DC loads, and a control module. The output of the mains power access module is connected to a first AC-AC converter and a rectifier. The output of the rectifier is also connected to a first DC-DC converter. The output of the solar photovoltaic array is connected to a photovoltaic controller. The output of the photovoltaic controller is connected to a charge/discharge controller, a first inverter, and a second DC-DC converter. The first inverter is connected to the second AC-AC converter. The charge/discharge controller is connected to a battery and is also connected to the mains power access module. This utility model utilizes photovoltaic power generation and photovoltaic complementarity, reducing dependence on mains power, lowering energy consumption and operating costs, and exhibiting good energy-saving and environmental protection benefits.

Description

Machine room photoelectric complementary power supply system

Technical Field

The utility model belongs to the technical field of photoelectric complementary power supply, and particularly relates to a machine room photoelectric complementary power supply system.

Background

The communication machine room is used as a core place for data processing and storage, and has extremely high requirements on power supply stability and persistence. The traditional machine room is powered by the mains supply, so that the energy consumption is high, and the normal operation of equipment is difficult to ensure when the mains supply fails. Although a part of machine rooms are introduced with standby power, the problems of slow response, high cost, environmental pollution and the like exist. Along with the development of the photovoltaic power generation technology, the photovoltaic power generation technology is applied to machine room power supply trend, but when the existing photovoltaic power supply system is combined with the machine room power supply system, the problems of low electric energy conversion efficiency, inflexible power supply mode switching, incapability of simultaneously and efficiently meeting the power consumption requirements of alternating current and direct current loads and the like exist, and improvement is needed.

Disclosure of Invention

In order to overcome the problems in the background art, the utility model provides a machine room photoelectric complementary power supply system. The utility model utilizes photovoltaic power generation and photoelectric complementation, reduces the dependence on commercial power, reduces energy consumption and operation cost, and has good energy-saving and environment-friendly benefits.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a computer lab photoelectric complementary power supply system includes commercial power access module 1, solar photovoltaic array 5, alternating current load 16, direct current load 17 and control module 11, the output of commercial power access module 1 is connected with first AC-AC converter 2 and rectifier 3, and rectifier 3 output still is connected with first DC-DC converter 4, the output of solar photovoltaic array 5 is connected with photovoltaic controller 6, and photovoltaic controller 6's output is connected with charge-discharge controller 7, first DC-to-AC converter 8 and second DC-to-DC converter 9, and first DC-to-AC converter 8 is connected with second AC-to-AC converter 10, and charge-discharge controller 7 is connected with battery 12, and charge-to-discharge controller 7 still is connected with commercial power access module 1, and battery 12 is connected with third DC-to-DC converter 13 and second DC-to-AC converter 14, and second DC-to-AC converter 14 is connected with third AC-to-DC converter 15, first AC-to-AC converter 2, second AC-to-AC converter 10 and third AC-to-AC converter 15 all are connected with charge-to-DC converter 16, and DC-to-DC converter 13 and DC-to-DC converter 9, and DC-to-DC converter 12 are connected with DC-to-DC converter 11, and DC-to-DC controller 11.

Further, the ac load 16 includes a primary ac load leg 1601, a secondary ac load leg 1602, and a tertiary ac load leg 1603, and the dc load 17 is divided into a primary dc load leg 1701, a secondary dc load leg 1702, and a tertiary dc load leg 1703.

Further, a first control switch 18 is connected between the mains supply access module 1 and the first AC-AC converter 2, a second control switch 19 is connected between the mains supply access module 1 and the rectifier 3, a third control switch 20 is connected between the photovoltaic controller 6 and the charge-discharge controller 7, a fourth control switch 21 is connected between the photovoltaic controller 6 and the first inverter 8, a fifth control switch 22 is connected between the photovoltaic controller 6 and the second DC-DC converter 9, a sixth control switch 23 is connected between the storage battery 12 and the third DC-DC converter 13, and a seventh control switch 24 is connected between the storage battery 12 and the second inverter 14.

Further, the first ac load branch 1601, the second ac load branch 1602 and the third ac load branch 1603 are respectively connected to an eighth control switch 25, a ninth control switch 26 and a tenth control switch 27, and the first dc load branch 1701, the second dc load branch 1702 and the third dc load branch 1703 are respectively connected to an eleventh control switch 28, a twelfth control switch 29 and a thirteenth control switch 30.

Further, the primary ac load branch 1601, the secondary ac load branch 1602, the tertiary ac load branch 1603, the primary dc load branch 1701, the secondary dc load branch 1702, and the tertiary dc load branch 1703 are respectively connected with a voltage sensor and a current sensor.

Further, the control module 11 is also wirelessly connected with a weather service platform 31.

Further, the control module 11 is also wirelessly connected with an illumination intensity sensor 32.

The utility model has the beneficial effects that:

The machine room photoelectric complementary power supply system combines commercial power and photovoltaic power generation, realizes flexible conversion of alternating current and direct current by reasonably configuring devices such as a rectifier, an inverter and the like, and can stably supply power for alternating current load and direct current load in the machine room. By carrying out importance grading power supply on the load, the power supply of important equipment in the machine room is effectively ensured, and the reliability and stability of the power supply of the machine room are improved. By utilizing photovoltaic power generation, the method reduces the dependence on commercial power, reduces energy consumption and operation cost, and has good energy-saving and environment-friendly benefits.

Drawings

FIG. 1 is a schematic diagram of the photovoltaic complementary power supply of the present utility model.

FIG. 2 is a schematic diagram of a control system of the present utility model.

Fig. 3 is a schematic diagram of a load branch of the present utility model.

The reference numerals in the figure are a mains supply access module 1, a first AC-AC converter 2, a rectifier 3, a first DC-DC converter 4, a solar photovoltaic array 5, a photovoltaic controller 6, a charge-discharge controller 7, a first inverter 8, a second DC-DC converter 9, a second AC-AC converter 10, a control module 11, a storage battery 12, a third DC-DC converter 13, a second inverter 14, a third AC-AC converter 15, an AC load 16, a first AC load branch 1601, a second AC load branch 1602, a third AC load branch 1603, a DC load 17, a first DC load branch 1701, a second DC load branch 1702, a third DC load branch 1703, a first control switch 18, a second control switch 19, a third control switch 20, a fourth control switch 21, a fifth control switch 22, a sixth control switch 23, a seventh control switch 24, an eighth control switch 25, a ninth control switch 26, a tenth control switch 27, an eleventh control switch 28, a twelfth control switch 29, a thirteenth control switch 31, and a weather-sensing platform illumination sensor 32.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding of the skilled person.

As shown in fig. 1-3, the utility model discloses a machine room photoelectric complementary power supply system, the machine room photoelectric complementary power supply system comprises a mains supply access module 1, a solar photovoltaic array 5, an alternating current load 16, a direct current load 17 and a control module 11, wherein the input end of the mains supply access module 1 is accessed to the mains supply, the output end of the mains supply access module 1 is connected with a first AC-AC converter 2 and a rectifier 3, the output end of the rectifier 3 is also connected with a first DC-DC converter 4, the output end of the solar photovoltaic array 5 is connected with a photovoltaic controller 6, the output end of the photovoltaic controller 6 is connected with a charge-discharge controller 7, a first inverter 8 and a second DC-DC converter 9, the first inverter 8 is connected with a second AC-AC converter 10, the charge-discharge controller 7 is connected with a storage battery 12, the charge-discharge controller 7 is also connected with the mains supply access module 1, the storage battery 12 is connected with a third DC-DC converter 13 and a second inverter 14, the second inverter 14 is connected with the third AC-DC converter 15, the first AC-DC converter 2 is connected with the second inverter 14 The second AC-AC converter 10 and the third AC-AC converter 15 are each connected to an alternating current load 16, the first DC-DC converter 4, the second DC-DC converter 9 and the third DC-DC converter 13 are each connected to a direct current load 17, and the control module 11 is connected to the mains access module 1, the photovoltaic controller 6, the charge-discharge controller 7 and the storage battery 12. The ac load 16 includes a primary ac load leg 1601, a secondary ac load leg 1602, and a tertiary ac load leg 1603, and the dc load 17 is divided into a primary dc load leg 1701, a secondary dc load leg 1702, and a tertiary dc load leg 1703. A first control switch 18 is connected between the mains supply access module 1 and the first AC-AC converter 2, a second control switch 19 is connected between the mains supply access module 1 and the rectifier 3, a third control switch 20 is connected between the photovoltaic controller 6 and the charge-discharge controller 7, a fourth control switch 21 is connected between the photovoltaic controller 6 and the first inverter 8, a fifth control switch 22 is connected between the photovoltaic controller 6 and the second DC-DC converter 9, a sixth control switch 23 is connected between the storage battery 12 and the third DC-DC converter 13, and a seventh control switch 24 is connected between the storage battery 12 and the second inverter 14. The first, second and third ac load branches 1601, 1602, 1603 are respectively connected with an eighth, ninth and tenth control switch 25, 26, 27, the first, second and third dc load branches 1701, 1702, 1703 are respectively connected with an eleventh, twelfth and thirteenth control switch 28, 29, 30, the first, second, third, fourth, fifth, sixth, and thirteenth control switches 18, 19, 20, 21, 22, 23, The seventh control switch 24, the eighth control switch 25, the ninth control switch 26, the tenth control switch 27, the eleventh control switch 28, the twelfth control switch 29 and the thirteenth control switch 30 are all connected to the control module 11. The photovoltaic controller is an MPPT controller. The primary direct current load branch is a machine room core service load, and outage can cause service interruption, data loss or major security risks, such as a switch (e.g. a core layer switch and a backbone network switch), a router (a core router and a convergence router) and a server (a data center core server and a charging server). The secondary direct current load branch circuit is used for influencing local service or operation and maintenance management, and needs to ensure continuous power supply, but allows short-time interruption of loads, such as access layer equipment, a power environment monitoring system (dynamic ring monitoring), a network management server (non-core layer) and auxiliary communication equipment, such as an IP telephone system and a video conference terminal (non-core node), wherein the access layer equipment comprises an access switch and a user side router. The three-stage direct current load branch is non-core auxiliary equipment, such as a printer, a scanner and a common PC terminal, and non-core monitoring equipment, such as a common camera (non-key area) and an access control system (non-core entrance and exit). The primary alternating current load branch is a key infrastructure such as an alternating current Uninterruptible Power Supply (UPS) system, a refrigerating system such as a precision air conditioner (CRAC) and a water chilling unit (guaranteeing heat dissipation of equipment). Directly affects the device operating environment and power stability. The secondary AC load branch is auxiliary power equipment, such as a common air conditioner (non-precision type), a ventilator, a common lighting system (non-emergency area) and corridor lighting. the three-stage alternating current load branch is non-continuous operation or non-critical equipment such as a water dispenser, a microwave oven, a common computer, a printer and non-core area illumination. Can tolerate long-time interruption without affecting service operation.

And in the daytime, when the illumination is sufficient, the solar photovoltaic array normally generates electricity, the fourth control switch and the fifth control switch are closed, and the solar photovoltaic array is preferentially used for supplying power to the direct current load and the alternating current load. And storing the redundant electric quantity generated by the solar photovoltaic array into a storage battery, and closing a third control switch to charge the storage battery. When the sunlight is abnormal (such as overcast and rainy days) or at night, the solar photovoltaic array fails to generate electricity normally, the first control switch and the second control switch are closed to supply power to the direct current load and the alternating current load by using the mains supply, and when the electric quantity of the storage battery is not fully discharged to reach the lower limit in continuous overcast and rainy days, the storage battery is charged by using the mains supply, so that the power supply for a machine room can be ensured when the power is cut off. When the solar photovoltaic array fails to generate electricity normally and is powered off, the sixth control switch and the seventh control switch are closed, the storage battery is used for supplying power to the direct current load and the alternating current load, the power supply load is selected through the eighth control switch, the ninth control switch, the tenth control switch, the eleventh control switch, the twelfth control switch or the thirteenth control switch according to the electricity residual condition and the incoming time of the storage battery, the power supply of the third-stage direct current load branch and the third-stage alternating current load branch is disconnected preferentially, the power supply of the second-stage alternating current load branch is disconnected, the power supply of the second-stage direct current load branch is selected according to the electricity residual condition and the incoming time of the storage battery, and the power supply of the first-stage direct current load branch and the first-stage alternating current load branch can be interrupted in a short time preferentially.

The primary ac load branch 1601, the secondary ac load branch 1602, the tertiary ac load branch 1603, the primary dc load branch 1701, the secondary dc load branch 1702, and the tertiary dc load branch 1703 are respectively connected with a voltage sensor and a current sensor, which are both connected with the control module 11, and the voltage sensor and the current sensor can monitor the voltage and the current data of each load branch, and use electricity.

The control module 11 is also connected with a weather service platform 31 in a wireless manner, and is connected with the weather service platform for acquiring weather data, such as weather conditions in one future time, so as to facilitate prediction of the power generation condition of the solar photovoltaic array.

The control module 11 is also wirelessly connected with an illumination intensity sensor 32, the illumination intensity sensor is arranged in the area where the solar photovoltaic array is positioned, monitors illumination intensity, and judges whether the solar photovoltaic array is generating electricity normally or not and whether the solar photovoltaic array is abnormal or not according to the illumination intensity and voltage and current output by the solar photovoltaic array.

The working process comprises the following steps:

The working principle of the utility model is that the solar photovoltaic array 5 normally generates electricity when the illumination is sufficient in daytime, the fourth control switch 21 and the fifth control switch 22 are closed, and the solar photovoltaic array 5 is preferentially used for supplying power to the direct current load 17 and the alternating current load 16. And the surplus electric quantity generated by the solar photovoltaic array 1 is stored in the storage battery 12, and the third control switch 20 is closed to charge the storage battery 12. When the solar photovoltaic array 1 fails to generate electricity normally in the daytime when the illumination is abnormal (such as overcast and rainy days) or at night, the first control switch 18 and the second control switch 19 are closed to supply power to the direct current load 17 and the alternating current load 16 by using the mains supply. When the solar photovoltaic array 1 fails to generate electricity normally and is powered off, the sixth control switch 23 and the seventh control switch 24 are closed, the storage battery 12 is used for supplying power to the direct current load 17 and the alternating current load 16, and the power supply load is selected through the eighth control switch 25, the ninth control switch 26, the tenth control switch 27, the eleventh control switch 28, the twelfth control switch 29 or the thirteenth control switch 30 according to the electric quantity surplus condition and the incoming time of the storage battery 12, so that the power supply of the three-stage direct current load branch 1703 and the three-stage alternating current load branch 1603 is disconnected preferentially, the power supply of the second-stage alternating current load branch 1602 is disconnected, the power supply of the second-stage direct current load branch 1702 is selected according to the electric quantity surplus condition and the incoming time of the storage battery, and the power supply of the first-stage direct current load branch 1701 and the first-stage alternating current load branch 1601 can be interrupted in a short time preferentially.

Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the utility model, and that, although the utility model has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model as defined by the appended claims.

Claims

1. A computer room photovoltaic complementary power supply system, characterized in that: the computer room photovoltaic complementary power supply system includes a mains power access module (1), a solar photovoltaic array (5), an AC load (16), a DC load (17), and a control module (11), wherein the output end of the mains power access module (1) is connected to a first AC-AC converter (2) and a rectifier (3), the output end of the rectifier (3) is also connected to a first DC-DC converter (4), the output end of the solar photovoltaic array (5) is connected to a photovoltaic controller (6), the output end of the photovoltaic controller (6) is connected to a charge and discharge controller (7), a first inverter (8), and a second DC-DC converter (9), the first inverter (8) is connected to a second AC-AC converter (10), the charge and discharge controller (7) is connected to a second AC-AC converter (10), and the first inverter (8) is connected to a second AC-AC converter (11). The battery (12) is connected to the mains power access module (1), the charge and discharge controller (7) is also connected to the mains power access module (1), the battery (12) is connected to the third DC-DC converter (13) and the second inverter (14), the second inverter (14) is connected to the third AC-AC converter (15), the first AC-AC converter (2), the second AC-AC converter (10) and the third AC-AC converter (15) are all connected to the AC load (16), the first DC-DC converter (4), the second DC-DC converter (9) and the third DC-DC converter (13) are all connected to the DC load (17), and the control module (11) is connected to the mains power access module (1), the photovoltaic controller (6), the charge and discharge controller (7) and the battery (12).

2. The computer room optoelectronic complementary power supply system according to claim 1, characterized in that: the AC load (16) includes a primary AC load branch (1601), a secondary AC load branch (1602) and a tertiary AC load branch (1603), and the DC load (17) is divided into a primary DC load branch (1701), a secondary DC load branch (1702) and a tertiary DC load branch (1703).

3. A computer room photovoltaic complementary power supply system according to claim 2, characterized in that: a first control switch (18) is connected between the mains power access module (1) and the first AC-AC converter (2), a second control switch (19) is connected between the mains power access module (1) and the rectifier (3), a third control switch (20) is connected between the photovoltaic controller (6) and the charge and discharge controller (7), a fourth control switch (21) is connected between the photovoltaic controller (6) and the first inverter (8), a fifth control switch (22) is connected between the photovoltaic controller (6) and the second DC-DC converter (9), a sixth control switch (23) is connected between the battery (12) and the third DC-DC converter (13), and a seventh control switch (24) is connected between the battery (12) and the second inverter (14).

4. A computer room optoelectronic complementary power supply system according to claim 3, characterized in that: an eighth control switch (25), a ninth control switch (26) and a tenth control switch (27) are respectively connected to the first-level AC load branch (1601), the second-level AC load branch (1602) and the third-level AC load branch (1603), and an eleventh control switch (28), a twelfth control switch (29) and a thirteenth control switch (30) are respectively connected to the first-level DC load branch (1701), the second-level DC load branch (1702) and the third-level DC load branch (1703).

5. A computer room optoelectronic complementary power supply system according to claim 3, characterized in that: the primary AC load branch (1601), the secondary AC load branch (1602), and the tertiary AC load branch (1603), as well as the primary DC load branch (1701), the secondary DC load branch (1702), and the tertiary DC load branch (1703), are respectively connected to voltage sensors and current sensors.

6. The computer room optoelectronic complementary power supply system according to claim 1, characterized in that: the control module (11) is also wirelessly connected to the meteorological service platform (31).

7. The optoelectronic complementary power supply system for computer room according to claim 1, characterized in that: the control module (11) is also wirelessly connected to a light intensity sensor (32).