9E unit improvement method and system based on optimization of photovoltaic power consumption rate

Abstract

The invention discloses a 9E unit improvement method and system based on optimization of a photovoltaic power consumption rate, and relates to the technical field of power system optimization, and the method comprises the steps: employing a photovoltaic grid-connected standby line when a 9E unit is switched, and continuously supplying power to a running unit through photovoltaic power; optimizing power supply configuration of a water production system, and selecting a desalting water pump based on 9E unit requirements; operation of a circulating water pump and a flushing water pump is optimized based on temperature conditions, and photovoltaic power supply is preferentially used. According to the method, the consumption of the photovoltaic electric quantity in the 9E unit is comprehensively optimized through various means such as automatic detection, dynamic adjustment and priority power supply; the circulating water pump and the flushing water pump achieve the dual effects of energy conservation and efficient power supply through temperature control and power supply priority design; the whole system achieves the goals of saving the power cost and improving the photovoltaic power consumption rate, and enhances the self-sufficient capability of the factory power system.

Description

Technical Field

[0001] The present invention relates to the technical field of power system optimization, and in particular to a 9E unit improvement method and system based on optimizing photovoltaic power consumption rate. Background Art

[0002] With the continuous increase in global energy demand and the improvement of environmental protection awareness, the application of photovoltaic power generation technology in various industrial fields has gradually become popular. As a clean and renewable energy source, photovoltaic power generation can effectively reduce the consumption of traditional fossil energy and has less environmental pollution. Therefore, it is widely used in electricity, manufacturing and other industries. Gas-steam combined cycle units (such as 9E units) occupy an important position in the power demand of industrial plants, but the power demand fluctuates greatly during their operation, especially when the units are switched, power supply stability becomes a major challenge. In order to enhance the stability of power supply, many plants have tried to integrate photovoltaic power sources into the main power system, and supply power to the operating units through backup lines to reduce dependence on external power purchases. However, the intermittent and instability of photovoltaic power generation has brought about difficulties in photovoltaic power consumption and system power supply stability. How to improve the photovoltaic power consumption rate and optimize the internal power system configuration of the plant has become an important research direction at this stage.

[0003] Although photovoltaic power sources have been adopted in current technology to be incorporated into the plant power grid, and auxiliary power has been provided to the gas-steam unit through backup lines to a certain extent, the photovoltaic power consumption rate is still not high, and the efficient use of photovoltaic resources has not been achieved. In the existing scheme, the switching process between the photovoltaic grid-connected cabinet and the unit is mostly in static mode, and it does not have the function of dynamically detecting the operating status of the unit and automatically adjusting the power supply line, and it is impossible to flexibly allocate photovoltaic power according to real-time needs. In addition, the adjustment of the power supply configuration of the water production system also lacks intelligent selection capabilities. It is difficult to reasonably select the desalted water pump operation mode according to the power demand and weather conditions of the 9E unit, resulting in a large amount of external electricity still required in some cases, increasing the system cost. The existing technology also has deficiencies in optimizing the operation of the circulating water pump and the flushing water pump. Most of them fail to intelligently adjust the pump speed according to the temperature conditions, resulting in low operating efficiency, and it is impossible to ensure photovoltaic priority power supply while achieving power saving. Therefore, the current technology cannot meet the needs of efficient photovoltaic power consumption in terms of dynamic power supply line switching, intelligent power supply configuration of the water production system, and intelligent adjustment of the water pump under temperature conditions. The present invention is optimized and designed to address the above deficiencies. Summary of the invention

[0004] In view of the above-mentioned problems, the present invention is proposed.

[0005] Therefore, the technical problem solved by the present invention is: the existing power system power supply configuration method has the problems of low photovoltaic power consumption rate, inflexible power supply line switching, insufficient intelligent power consumption of the water production system, and how to realize intelligent control of water pumps under different temperature conditions.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a method for improving a 9E unit based on optimizing the photovoltaic power consumption rate, including using a photovoltaic grid-connected backup line when the 9E unit is switched, and continuously supplying power to the operating unit through photovoltaic power; optimizing the power supply configuration of the water production system, and selecting a desalted water pump based on the needs of the 9E unit; optimizing the operation of the circulating water pump and the flushing water pump based on temperature conditions, and giving priority to using photovoltaic power supply.

[0007] As a preferred solution of the 9E unit improvement method based on optimizing the photovoltaic power consumption rate described in the present invention, the use of the photovoltaic grid-connected backup line includes automatically detecting the current operating unit status when the 9E unit is switched, and switching the photovoltaic grid-connected cabinet power supply line accordingly. When the system detects that the unit is switched from #5 and #6 to #3 and #4, the #2 grid-connected cabinet is automatically switched to the 4A section of 400V of the #4 machine, and the #3 grid-connected cabinet is switched to the 4B section of 400V of the #4 machine.

[0008] As a preferred solution of the 9E unit improvement method based on optimizing the photovoltaic power consumption rate described in the present invention, the optimized water production system power supply configuration includes selecting a desalted water pump according to the weather and the unit operating status. When the weather is cloudy or at night, the #2 desalted water pump connected to the chemical water section B is selected for operation. When the weather is clear, the #1 desalted water pump connected to the chemical water section A is used preferentially.

[0009] As a preferred solution of the 9E unit improvement method based on optimizing the photovoltaic power consumption rate described in the present invention, the optimization of the operation of the circulating water pump and the flushing water pump includes switching between high and low speeds based on the real-time cooling water temperature. When the 9F unit is in peak-shaving operation, if the cooling water temperature is lower than 20 degrees, the system automatically switches the high-speed circulating water pump to low-speed operation. If the peak-shaving unit is shut down, the low-speed pump is switched to the flushing water pump.

[0010] As a preferred scheme of the 9E unit improvement method based on optimizing the photovoltaic power consumption rate described in the present invention, the priority use of photovoltaic power supply includes preferentially starting the #3 flushing water pump connected to the chemical water transformer section A with photovoltaic access on sunny days, and switching to the #1 flushing water pump connected to the chemical water transformer section B on cloudy days or at night.

[0011] As a preferred solution of the 9E unit improvement method based on optimizing the photovoltaic power consumption rate described in the present invention, the priority use of photovoltaic power supply also includes automatic backup power supply activation logic in the event of a fault. If the currently operating unit has a power failure or stops running, the system automatically switches the water production system to the backup power supply segment, and gives priority to using the photovoltaic access power supply segment to keep the water production system running.

[0012] As a preferred solution of the 9E unit improvement method based on optimizing the photovoltaic power consumption rate described in the present invention, the priority use of photovoltaic power supply also includes optimal allocation of power resources under different operating conditions. When a sunny day is detected, the system gives priority to photovoltaic power supply and adjusts the operating modes of the desalted water pump, circulating water pump and flushing water pump in real time. Collaborative control is carried out under information sharing and judgment among different systems, and electrical equipment operates on demand.

[0013] Another object of the present invention is to provide a 9E unit improvement system based on optimizing the photovoltaic power consumption rate, which can optimize the power configuration of the water production system and select a desalted water pump based on the needs of the 9E unit, thereby solving the problem of low flexibility in the current power system power supply configuration method.

[0014] As a preferred solution of the 9E unit improvement system based on optimizing the photovoltaic power consumption rate described in the present invention, it includes: a photovoltaic optimization module, a power configuration module, and an operation optimization module; the photovoltaic optimization module is used to use the photovoltaic grid-connected backup line when the 9E unit is switched, and continuously power the operating unit with photovoltaic power; the power configuration module is used to optimize the power configuration of the water production system, and select the desalted water pump based on the needs of the 9E unit; the operation optimization module is used to optimize the operation of the circulating water pump and the flushing water pump based on temperature conditions, and give priority to the use of photovoltaic power supply.

[0015] A computer device includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of a 9E unit improvement method based on optimizing photovoltaic power consumption rate.

[0016] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of a 9E unit improvement method based on optimizing photovoltaic power consumption rate.

[0017] Beneficial effects of the present invention: The 9E unit improvement method based on optimizing the photovoltaic power consumption rate provided by the present invention comprehensively optimizes the consumption of photovoltaic power in the 9E unit through various means such as automatic detection, dynamic adjustment and priority power supply; through the automatic switching of the photovoltaic grid-connected standby line, the continuous supply of photovoltaic power to the unit is guaranteed, reducing the dependence on external power; the optimization of the power supply configuration of the water production system enables the desalted water pump to intelligently select the power supply mode according to the weather and the operating status of the unit, improves the utilization efficiency of photovoltaic power, and ensures the system stability in low light environments; the circulating water pump and the flushing water pump achieve the dual effects of energy saving and efficient power supply through the design of temperature control and power supply priority; the overall system achieves the goal of saving electricity costs and improving the photovoltaic power consumption rate, and enhances the self-sufficiency of the plant power system. The present invention achieves better results in terms of stability, efficiency and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 An overall flow chart of a 9E unit improvement method based on optimizing photovoltaic power consumption rate provided in the first embodiment of the present invention.

[0020] Figure 2 An overall flow chart of a 9E unit improvement system based on optimizing photovoltaic power consumption rate is provided for the third embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0022] Example 1, reference Figure 1 , which is an embodiment of the present invention, provides a 9E unit improvement method based on optimizing photovoltaic power consumption rate, comprising:

[0023] S1: When the 9E unit is switched, the photovoltaic grid-connected backup line is used to continuously supply power to the operating unit through photovoltaic power.

[0024] Furthermore, the use of photovoltaic grid-connected backup lines includes automatically detecting the current operating unit status when the 9E unit is switched, and switching the photovoltaic grid-connected cabinet power supply line accordingly. When the system detects that the unit is switched from #5 and #6 to #3 and #4, it automatically switches the #2 grid-connected cabinet to the 4A segment of 400V of the #4 machine, and switches the #3 grid-connected cabinet to the 4B segment of 400V of the #4 machine.

[0025] It should be noted that the #2 grid-connected cabinet is the photovoltaic grid-connected cabinet number 2. The #2 grid-connected cabinet is one of the access devices of the photovoltaic power generation system. Its main function is to connect the photovoltaic power generated to the power system of the factory area. The grid-connected cabinet is usually connected to the 400V 4A segment of the #4 machine. Through switching control, the photovoltaic power can be transferred to the corresponding power supply segment according to the different operating conditions of the unit, thereby improving the photovoltaic power consumption rate and reducing the dependence on external power purchases. The #3 grid-connected cabinet is the photovoltaic grid-connected cabinet number 3. The #3 grid-connected cabinet is also an access device for the photovoltaic power generation system, which is used to receive and distribute the power of the photovoltaic power generation system, similar to the #2 grid-connected cabinet. It is usually connected to the 400V 4A segment of the #4 machine. 4B section; when the unit is switched, the #3 grid-connected cabinet can automatically switch to the power supply section of the currently operating unit, thereby ensuring the continuous supply of photovoltaic power and further optimizing the efficiency of photovoltaic power consumption; #4 machine is the No. 4 generator in the 9E unit. The #4 machine is a generator unit in the 9E gas-steam combined cycle unit, responsible for providing power to specific power supply sections of the plant (such as the 400V 4A section and 4B section); in the photovoltaic access system, the #4 machine also plays the role of connecting and distributing photovoltaic power. The #2 and #3 photovoltaic grid-connected cabinets are respectively connected to the 400V power supply section of the #4 unit. Through adjustment, it can be ensured that the photovoltaic power is effectively utilized when the #4 unit is in operation; the #5 unit is the No. 5 generator in the 9E unit, and the #5 unit is another generator unit in the 9E gas-steam combined cycle unit; under normal circumstances, the #5 unit can be used as one of the main power supply equipment in the plant area, but when photovoltaic power is connected, it may serve as a backup with other generators, and work in coordination with the photovoltaic grid-connected system through the backup line to ensure that the power demand of the plant area is continuously met during the switching of different units; the #6 unit is the No. 6 generator in the 9E unit, and the #6 unit is the third generator unit of the 9E unit. It usually works in coordination with the #5 unit as one of the main power supply sources of the plant area; the #6 unit can provide auxiliary power supply when the photovoltaic system is connected, and undertake the task of absorbing part of the photovoltaic power during the unit switching; when the #3 and #4 units are in operation, the 400V power supply section of the #6 unit can also receive photovoltaic power through the backup line to achieve flexible power dispatch and switching.

[0026] It should also be noted that by setting up a photovoltaic grid-connected backup line, when the 9E unit switches between different units, the system can detect the status of the currently operating unit in real time and automatically switch the power supply line of the photovoltaic grid-connected cabinet to the current unit, thereby realizing the continuous supply of photovoltaic power to different units; this configuration ensures seamless access to the photovoltaic power supply and can maintain a stable supply of photovoltaic power even in the case of frequent switching of units; this design reduces dependence on external electricity while increasing the photovoltaic absorption rate, making the plant's power system more efficient and environmentally friendly, and automatically switching power supply lines can effectively reduce the risk of errors in manual operations, improve the safety and stability of system operation, and ultimately achieve the beneficial effect of enhancing the plant's power self-sufficiency rate and reducing operating costs.

[0027] S2: Optimize the power configuration of the water production system and select the desalted water pump based on the needs of the 9E unit.

[0028] Furthermore, optimizing the power supply configuration of the water production system includes selecting the desalted water pump according to the weather and the operating status of the unit. When the weather is cloudy or at night, the #2 desalted water pump connected to the chemical water section B is selected for operation. When the weather is clear, the #1 desalted water pump connected to the chemical water section A is used first.

[0029] It should be noted that in the optimized water production system, the desalted water pump is flexibly selected according to the actual operating needs and weather conditions of the 9E unit to achieve dynamic adjustment of the power supply configuration; on cloudy days or at night, the desalted water pump connected to the #2 grid-connected cabinet of the chemical water section B is given priority, while on sunny days, the #1 grid-connected cabinet of the chemical water section A is given priority; this on-demand configuration optimization not only makes full use of the photovoltaic power and avoids unnecessary use of external electricity, but also ensures the efficient operation of the water production system under different environmental conditions; by reasonably selecting the power supply section, the total power consumption of the water production system can be effectively reduced, ensuring that the plant still has a reliable water supply capacity during low light periods, thereby improving resource utilization while optimizing electricity costs.

[0030] S3: Optimize the operation of circulating water pumps and flushing water pumps based on temperature conditions, and give priority to using photovoltaic power supply.

[0031] Furthermore, the optimization of the operation of the circulating water pump and the flushing water pump includes high-speed and low-speed switching based on the real-time cooling water temperature. When the 9F unit is operating at a peak, if the cooling water temperature is lower than 20 degrees, the system automatically switches the high-speed circulating water pump to a low-speed operation. If the peak-shaving unit is shut down, the low-speed pump is switched to the flushing water pump.

[0032] It should be noted that the priority use of photovoltaic power supply includes starting the #3 flushing water pump connected to section A of the chemical water transformer with photovoltaic access on sunny days, and switching to the #1 flushing water pump connected to section B of the chemical water transformer on cloudy days or at night.

[0033] It should also be noted that the priority use of photovoltaic power supply also includes the automatic backup power supply activation logic in the event of a fault. If the currently operating unit has a power failure or stops running, the system automatically switches the water production system to the backup power supply segment, giving priority to the photovoltaic access power supply segment to keep the water production system running.

[0034] It should also be noted that the priority use of photovoltaic power supply also includes the optimal allocation of power resources under different operating conditions. When a sunny day is detected, the system gives priority to photovoltaic power supply and adjusts the operating modes of the desalted water pump, circulating water pump and flushing water pump in real time. Collaborative control is carried out under the information sharing and judgment between different systems, and electrical equipment operates on demand.

[0035] It should also be noted that the #1 desalted water pump is part of the plant's water production system and is mainly used to provide desalted water to meet the water needs of multiple units within the plant. The function of the desalted water pump is to remove impurities and salt from the water to ensure that the water quality used by the units meets the standards. The #1 desalted water pump is usually connected to the chemical water section A for power supply, and its operating status can be switched according to the operating conditions of different units. In dark weather or at night, the #1 desalted water pump is used first to supply water to minimize the use of purchased electricity and improve the power efficiency of the plant. In the operation of the 9E unit, the high-speed and low-speed switching of the circulating water pump and the flushing water pump is intelligently controlled based on the real-time temperature of the cooling water, so that the power consumption of the water pump matches the actual demand. When the cooling water temperature is lower than 20 degrees, the system will automatically switch the high-speed circulating water pump to low-speed operation to reduce unnecessary power consumption. When the peak-shaving unit is shut down, the low-speed pump is switched to the flushing water pump to achieve more efficient water supply needs. At the same time, by giving priority to starting the flushing water pump of the #3 grid-connected cabinet with photovoltaic access during the day, and switching to the #1 flushing water pump of the chemical water transformer section B when there is insufficient light, the priority use of photovoltaic power is ensured. This combination of temperature control and power supply priority design not only achieves efficient power resource management, but also flexibly allocates photovoltaic power under different operating conditions, ultimately achieving the energy-saving goals of the plant.

[0036] Example 2 is an embodiment of the present invention, which provides a 9E unit improvement method based on optimizing the photovoltaic power consumption rate. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through economic benefit calculation and simulation experiments.

[0037] First, the 9E unit used includes three main power generation units, #5, #6, and #4, as well as two photovoltaic grid-connected cabinets, #2 and #3. The water production system uses two desalted water pumps, which are respectively connected to the power supply systems of chemical water section A and chemical water section B. The experimental data collection includes operating voltage, operating current, power supply stability, photovoltaic power consumption rate, power consumption, cooling water temperature and other parameters. During the operation switching process of the 9E unit, the system automatically detects the current operating unit status. When the unit switches from #5 and #6 to #4, the system automatically switches the #2 grid-connected cabinet to the 400V 4A section of #4, and switches #3 to 400V 4B section. The detection data during the experiment include the power supply stability at each switching, the continuous consumption rate of photovoltaic power and the demand rate of manual intervention. This step realizes the stable output of photovoltaic power through automatic power supply line switching, aiming to verify the influence of automatic detection and switching strategy on photovoltaic power consumption and system stability. According to the weather and operating status, the system dynamically selects the desalted water pump connected to the chemical water section A or the chemical water section B to operate. When it is cloudy or at night, the system gives priority to starting the #2 grid-connected cabinet connected to the chemical water section B to improve the utilization rate of photovoltaic power. When the weather is clear and the photovoltaic power generation power is high, the system switches to the #1 desalted water pump of the chemical water section A to maintain the continuous water supply capacity of the system. The experiment records the weather conditions, the switching of the desalted water pump The purpose is to analyze the improvement effect of power configuration optimization on photovoltaic power consumption and electricity cost. The system monitors the cooling water temperature in real time and automatically adjusts the high and low speed operation of the circulating water pump according to the temperature conditions. When the cooling water temperature is lower than 20 degrees, the system switches the high-speed circulating water pump to low-speed operation; when the 9F unit is shut down for peak regulation, the system switches the low-speed circulating water pump to the flushing water pump to ensure water flow demand while reducing power consumption. At the same time, during the day, the photovoltaic access #3 flushing water pump connected to the chemical water transformer section A is used first, and at night or on cloudy days, it is switched to the #1 flushing water pump of the chemical water transformer section B. The experiment records the pump speed adjustment, power consumption, photovoltaic power utilization rate and purchased electricity savings at different temperatures.

[0038] By automatically detecting and switching the power supply lines of photovoltaic grid-connected cabinets, the utilization ratio of photovoltaic power can be effectively increased, thereby reducing the demand for purchased electricity. The optimal power supply configuration is selected through weather judgment and changes in operating status, and photovoltaic power is used first, thereby achieving the purpose of saving purchased electricity and reducing the system operating cost. Through high- and low-speed switching and priority photovoltaic power supply strategies, the workload of the water pump can be more reasonably distributed to achieve the purpose of energy saving. Especially when the cooling water temperature is lower than 20 degrees, the low-speed operation of the circulating water pump effectively reduces unnecessary power waste. In the case of automatic switching of photovoltaic grid-connected lines, power supply failures are reduced to less than 1 time a day, ensuring the stability of power in the factory area. Compared with traditional solutions, the present invention significantly reduces power fluctuations caused by unit switching and improves the reliability of the system.

[0039] Example 3, reference Figure 2 , which is an embodiment of the present invention, provides a 9E unit improvement system based on optimizing photovoltaic power consumption rate, including a photovoltaic optimization module, a power configuration module, and an operation optimization module.

[0040] The photovoltaic optimization module is used to use the photovoltaic grid-connected backup line when the 9E unit is switched, and continuously supply power to the operating unit through photovoltaic power; the power configuration module is used to optimize the power configuration of the water production system and select the desalted water pump based on the needs of the 9E unit; the operation optimization module is used to optimize the operation of the circulating water pump and the flushing water pump based on temperature conditions, giving priority to the use of photovoltaic power supply.

[0041] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0042] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0043] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering, or processing in another suitable manner as necessary, and then stored in a computer memory.

[0044] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc. It should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not limited. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. 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 solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A 9E unit improvement method based on optimizing photovoltaic power consumption rate, characterized in that: include: When the 9E unit is switched, the photovoltaic grid-connected backup line is used to continuously supply power to the operating unit through photovoltaic power; Optimize the power configuration of the water production system and select the desalted water pump based on the needs of the 9E unit; The operation of circulating water pumps and flushing water pumps is optimized based on temperature conditions, and photovoltaic power supply is given priority.

2. The 9E unit improvement method based on optimizing photovoltaic power consumption rate according to claim 1 is characterized in that: The use of the photovoltaic grid-connected backup line includes automatically detecting the current operating unit status when the 9E unit is switched, and switching the photovoltaic grid-connected cabinet power supply line accordingly. When the system detects that the unit is switched from #5 and #6 to #3 and #4, it automatically switches the #2 grid-connected cabinet to the 4A section of 400V of the #4 machine, and switches the #3 grid-connected cabinet to the 4B section of 400V of the #4 machine.

3. The 9E unit improvement method based on optimizing photovoltaic power consumption rate as claimed in claim 2 is characterized by: The optimized water production system power supply configuration includes selecting a desalted water pump according to the weather and the operating status of the unit. When the weather is cloudy or at night, the #2 desalted water pump connected to the chemical water section B is selected for operation. When the weather is clear, the #1 desalted water pump connected to the chemical water section A is preferentially used for operation.

4. The 9E unit improvement method based on optimizing photovoltaic power consumption rate as claimed in claim 3 is characterized by: The optimized operation of the circulating water pump and the flushing water pump includes switching between high and low speeds based on the real-time cooling water temperature. When the 9F unit is in peak operation, if the cooling water temperature is lower than 20 degrees, the system automatically switches the high-speed circulating water pump to low-speed operation. If the peak-shaving unit is shut down, the low-speed pump is switched to the flushing water pump.

5. The 9E unit improvement method based on optimizing photovoltaic power consumption rate as claimed in claim 4 is characterized by: The priority use of photovoltaic power supply includes preferentially starting the #3 flushing water pump connected to the A section of the chemical water transformer with photovoltaic access during sunny days, and switching to the #1 flushing water pump connected to the B section of the chemical water transformer during cloudy days or at night.

6. The 9E unit improvement method based on optimizing photovoltaic power consumption rate as claimed in claim 5 is characterized by: The priority use of photovoltaic power supply also includes automatic backup power supply activation logic in the event of a fault. If the currently operating unit has a power failure or stops running, the system automatically switches the water production system to the backup power supply segment, giving priority to the photovoltaic access power supply segment to keep the water production system running.

7. The 9E unit improvement method based on optimizing photovoltaic power consumption rate as claimed in claim 6 is characterized by: The priority use of photovoltaic power supply includes optimal allocation of power resources under different operating conditions. When a sunny day is detected, the system gives priority to photovoltaic power supply and adjusts the operating modes of the desalted water pump, circulating water pump and flushing water pump in real time. Collaborative control is carried out under information sharing and judgment among different systems, and electrical equipment operates on demand.

8. A system using the 9E unit improvement method based on optimizing photovoltaic power consumption rate as described in any one of claims 1 to 7, characterized in that: Including photovoltaic optimization module, power configuration module, operation optimization module; The photovoltaic optimization module is used to use the photovoltaic grid-connected backup line when the 9E unit is switched, and continuously supply power to the operating unit through photovoltaic power; The power configuration module is used to optimize the power configuration of the water production system and select the desalted water pump based on the needs of the 9E unit; The operation optimization module is used to optimize the operation of the circulating water pump and the flushing water pump based on temperature conditions, giving priority to using photovoltaic power supply.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the 9E unit improvement method based on optimizing the photovoltaic power consumption rate described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, the steps of the 9E unit improvement method based on optimizing the photovoltaic power consumption rate described in any one of claims 1 to 7 are implemented.

Images