Tail end water energy power generation system and method

Abstract

The invention discloses a tail end water energy power generation system and method, and the system comprises a dynamic flow distributor which is provided with a water flow inlet connected to a main water outlet, N branch flow dividing outlets and a main flow dividing outlet, and is used for detecting the total flow flowing into the water flow inlet, the flow of the N branch shunt outlets and the flow of the main shunt outlet are adjusted in real time according to the distribution flow sequence; the inlet ends of the main pipeline and the N branches are respectively connected with the N + 1 branch shunt outlets; the outlet ends of the N branches are all connected to the inlet end of the confluence pipeline; the outlet end of the confluence pipeline is connected to the side wall, close to the outlet end, of the main pipeline; the N branches are respectively provided with a water-turbine generator set; and the distribution processing module is in data connection with the dynamic flow distributor and is used for carrying out distribution processing on the total flow to obtain a distribution flow sequence. According to the method, basic production activities can be guaranteed under the condition that the tail end water flow and the equipment operation condition are dynamically changed, and meanwhile the overall power generation benefit is improved.

Description

Technical Field

[0001] This invention belongs to the field of end-of-pipe hydropower comprehensive utilization technology, specifically an end-of-pipe hydropower generation system and method. Background Technology

[0002] In a water treatment plant, the regulating tank serves as a crucial control facility, responsible for storing and balancing the flow of raw water. When raw water enters the regulating tank from the intake point, it is either temporarily stored or released based on the treatment needs of the water treatment plant and the tank's capacity. After regulation by the regulating tank, the water flow is transported to the subsequent treatment stages of the water treatment plant. After undergoing a series of complex treatment processes (such as sedimentation, filtration, and disinfection), the water enters the discharge stage, flowing through pipes into the stilling basin at the end of the plant. The main function of the stilling basin is to reduce the kinetic energy of the water flow, preventing it from scouring and damaging downstream facilities (such as pipes, channels, and sluice gates). In the stilling basin, the water flow is transformed from high-speed to low-speed flow by energy dissipation devices (such as energy dissipation teeth and energy dissipation blocks), thereby reducing the impact force of the water flow. After treatment in the stilling basin, the water flow becomes stable and then flows into downstream pipes, channels, or is directly discharged into natural water bodies, completing its flow process throughout the water treatment plant.

[0003] Since the water flowing into the stilling basin typically possesses high kinetic energy, this energy would be dissipated into heat or other useless forms of energy if not utilized, resulting in energy waste. By installing a micro-hydropower generation device, the kinetic energy of the water flow can be converted into electrical energy to power the equipment within the plant, thereby reducing the water purification plant's electricity costs and improving economic efficiency.

[0004] However, the power supply requirements of various equipment within a water treatment plant differ. For example, core equipment such as water pumps, disinfection systems, and PLC control cabinets will experience water supply interruptions or substandard water quality if power is cut off; auxiliary equipment such as mixers and chemical dosing equipment can tolerate short-term power outages, but must be restored as soon as possible; non-critical equipment such as lighting and office power supply has a smaller impact from power outages. Furthermore, the energy consumption of the same equipment varies at different times of day. In addition, the flow of water into the stilling basin exhibits significant dynamism due to changes in weather conditions (such as heavy rain or drought) and the operational needs of the water treatment plant, causing fluctuations in total power generation.

[0005] Therefore, it is of great significance to comprehensively utilize the end-point water flow for power generation and provide classified power supply for the equipment in the water purification plant under the dynamic changes of end-point water flow and equipment power demand. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a terminal hydropower generation system and method that can ensure basic production activities while improving overall power generation efficiency when the terminal water flow and equipment operation are dynamically changing.

[0007] To address the aforementioned technical problems, the first aspect of this invention discloses a terminal hydropower generation system, the system comprising a dynamic flow distributor, a main pipeline, N branch pipelines, a confluence pipeline, and a distribution processing module;

[0008] The dynamic flow distributor is provided with a water inlet connected to the main drain outlet, and N branch diversion outlets and 1 main diversion outlet. It is used to detect the total flow into the water inlet and adjust the flow of the N branch diversion outlets and the 1 main diversion outlet in real time according to the distribution flow sequence from the distribution processing module; N is an integer greater than 1.

[0009] The allocated traffic sequence includes N allocated traffic flows;

[0010] The inlet ends of the main pipeline and the N branch pipelines are respectively connected to the N+1 branch pipeline diversion outlets to guide the diverted water flow;

[0011] The outlet ends of each of the N branches are connected to the inlet end of the manifold.

[0012] The outlet end of the manifold is connected to the side wall of the main pipeline near the outlet end, so that the water from the N branches flows through the manifold into the main pipeline;

[0013] Each of the N branch lines is equipped with a hydro-generator set; each of the N hydro-generator sets is used to supply power to N pieces of equipment.

[0014] The allocation processing module is data-connected to the dynamic traffic allocator and is used to allocate the total traffic to obtain the allocated traffic sequence.

[0015] As an optional implementation, in the first aspect of the present invention, the allocation processing module includes a priority generation unit and an allocation traffic generation unit;

[0016] The priority generation unit is data-connected to the allocation flow generation unit and is used to process the preset basic priority sequence and rated power sequence to obtain the real-time priority sequence.

[0017] The allocation flow generation unit is data-connected to the dynamic flow allocator and is used to process the total flow, the real-time priority sequence, and the preset minimum power demand sequence, power generation efficiency sequence, and maximum flow sequence to obtain the allocation flow sequence, and send the allocation flow sequence to the dynamic flow allocator.

[0018] A second aspect of this invention discloses a method for end-point hydropower generation, the method comprising:

[0019] S1, preset basic priority sequence, rated power sequence, minimum electricity demand sequence, power generation efficiency sequence and maximum flow sequence;

[0020] The basic priority sequence includes N basic priority values; the rated power sequence includes N rated power values; the minimum electricity demand sequence includes N minimum electricity demand values; the power generation efficiency sequence includes N power generation efficiency values; and the maximum flow sequence includes N maximum flow values.

[0021] S2. Using the allocation processing module, the basic priority sequence and the rated power sequence are processed to obtain a real-time priority sequence; the real-time priority sequence includes N real-time priority values;

[0022] S3. The total flow rate is detected using the dynamic flow distributor.

[0023] S4. Using the allocation processing module, the total flow, the minimum electricity demand sequence, the power generation efficiency sequence, the real-time priority sequence, and the maximum flow sequence are processed to obtain the allocated flow sequence.

[0024] S5. Using the dynamic flow distributor, based on the flow distribution sequence, adjust the flow of N branch outlets and 1 main outlet;

[0025] S6. Repeat S2 to S5 until the total flow rate is 0.

[0026] As an optional implementation, in the second aspect of the present invention, the processing of the basic priority sequence and the rated power sequence to obtain a real-time priority sequence includes:

[0027] S21. Obtain the actual power sequence; the actual power sequence includes N actual power values;

[0028] S22. Using a real-time priority calculation model, the actual power sequence is processed to obtain a real-time priority sequence;

[0029] The expression for the real-time priority calculation model is:

[0030]

[0031] In the formula, S i R is the i-th real-time priority value in the real-time priority sequence; i PA is the i-th basic priority value in the basic priority sequence; i PB is the i-th actual power value in the actual power sequence;i The rated power value is the i-th value in the rated power sequence; α and β are the preset base coefficient and load coefficient, respectively, and α+β=1; i is an integer from 1 to N.

[0032] As an optional implementation, in a second aspect of the present invention, processing the total flow, the minimum electricity demand sequence, the power generation efficiency sequence, the real-time priority sequence, and the maximum flow sequence to obtain the allocated flow sequence includes:

[0033] S41. Using the basic flow calculation model, process the minimum electricity demand sequence and the power generation efficiency sequence to obtain the basic flow sequence; the basic flow sequence includes N basic flows;

[0034] The expression for the basic flow calculation model is:

[0035]

[0036] In the formula, qmi i E is the i-th basic flow in the basic flow sequence; i For the i-th minimum electricity demand in the minimum electricity demand sequence; η i Let i be the i-th power generation efficiency value in the power generation efficiency sequence; i is an integer from 1 to N.

[0037] S42. Using the total excess flow calculation model, process the basic flow sequence and the total flow to obtain the total excess flow;

[0038] The expression for the total excess flow calculation model is:

[0039]

[0040] In the formula, Q remain Q represents the total excess flow; total The total flow rate;

[0041] S43. Determine whether the total excess flow is greater than 0, and obtain the flow determination result;

[0042] When the traffic determination result is yes, the real-time priority sequence, the total excess traffic, the basic traffic sequence, and the maximum traffic sequence are processed to obtain the allocated traffic sequence.

[0043] When the traffic determination result is negative, the real-time priority sequence, the total traffic, and the basic traffic sequence are processed to obtain the allocated traffic sequence.

[0044] As an optional implementation, in a second aspect of the present invention, processing the real-time priority sequence, the total excess traffic, the basic traffic sequence, and the maximum traffic sequence to obtain the allocated traffic sequence includes:

[0045] S431. Using the extra traffic calculation model, the real-time priority sequence and the total excess traffic are processed to obtain an extra traffic sequence; the extra traffic sequence includes N extra traffic items.

[0046] S432. Using the first flow allocation model, the basic flow sequence, the additional flow sequence, and the maximum flow sequence are processed to obtain the allocated flow sequence.

[0047] As an optional implementation, in the second aspect of the present invention, the expression of the additional traffic calculation model is:

[0048]

[0049] In the formula, qe i For the i-th additional traffic in the additional traffic sequence; P i It is the i-th real-time priority value in the real-time priority sequence.

[0050] As an optional implementation, in the second aspect of the present invention, the expression of the first traffic allocation model is:

[0051] q i =min(qmi) i +qe i ,qma i )

[0052] In the formula, q i For the i-th allocated flow in the allocated flow sequence; qma i The maximum flow rate is the i-th maximum flow rate in the maximum flow rate sequence.

[0053] As an optional implementation, in a second aspect of the present invention, processing the real-time priority sequence, the total traffic, and the basic traffic sequence to obtain the allocated traffic sequence includes:

[0054] S433. Initialize the cumulative allocated traffic to 0;

[0055] The allocation tag sequence is initialized to a sequence of N allocation tags with a value of 0;

[0056] Initialize all N allocated flows in the allocated flow sequence to 0;

[0057] S434. Set the current number k to the maximum value of all real-time priority values ​​in the real-time priority sequence where the corresponding allocation flag is equal to 0, and set the number in the real-time priority sequence.

[0058] Set the value of the kth allocation tag in the allocation tag sequence to 1;

[0059] S435. Using the second traffic allocation model, based on the total traffic, the basic traffic sequence, and the current number, update the allocated traffic sequence and the cumulative allocated traffic to obtain the updated allocated traffic sequence and the cumulative allocated traffic.

[0060] S436. Repeat S434 to S435 until the values ​​of the allocation markers in the allocation marker sequence are all 1.

[0061] As an optional implementation, in the second aspect of the present invention, the expression of the second traffic allocation model is:

[0062] qq k =min(qmi) k Q total -S)

[0063] S * =S+qq k

[0064] In the formula, k is the current number; qq k The updated value of the kth allocated traffic in the allocated traffic sequence; qmi k For the kth basic flow in the basic flow sequence; S and S * The cumulative allocated traffic is defined as before and after the update, respectively.

[0065] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0066] This invention combines equipment load characteristics and real-time operating conditions to obtain a real-time priority sequence, and combines the real-time total flow to allocate flow among multiple branches, driving the corresponding branches to generate electricity. This enables the rational use of water flow while ensuring basic production needs are met, even when both the end-point water flow and equipment operating conditions are dynamically changing. Attached Figure Description

[0067] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used 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 those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0068] Figure 1 This is a schematic diagram of the structure of a terminal hydropower generation system disclosed in an embodiment of the present invention.

[0069] Figure 2 This is a schematic flowchart of a terminal hydropower generation method disclosed in an embodiment of the present invention.

[0070] Explanation of reference numerals in the attached diagram: 1. Dynamic flow distributor; 11. Branch branch outlet; 12. Main branch outlet; 2. Main pipeline; 3. Branch pipeline; 31. Hydropower generator set; 4. Combination pipeline; 5. Main drainage outlet. Detailed Implementation

[0071] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0072] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0073] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0074] Example 1

[0075] Please see Figure 1 . Figure 1 This is a schematic diagram of the structure of a terminal hydropower generation system disclosed in an embodiment of the present invention. Figure 1 The described end-of-pipe hydropower system is applied in the field of comprehensive end-of-pipe hydropower utilization, such as end-of-pipe hydropower generation in water purification plants. This invention does not limit the application of such systems. Figure 1 As shown, the system includes a dynamic flow distributor 1, a main pipeline 2, N branch pipelines 3, a junction pipeline 4, and a distribution processing module; N is an integer greater than 1. Figure 1 N is 3.

[0076] The aforementioned dynamic flow distributor 1 is provided with a water inlet connected to the main drain outlet 5 of the water purification plant, as well as N branch diversion outlets 11 and 1 main diversion outlet 12. It is used to detect the total flow into the aforementioned water inlet and to adjust the flow of the N branch diversion outlets 11 and the 1 main diversion outlet 12 in real time according to the distribution flow sequence from the aforementioned distribution processing module.

[0077] The above-mentioned traffic allocation sequence includes N traffic allocations.

[0078] It should be noted that the above N distributed flows represent the flows that the dynamic flow distributor 1 distributes to the N branch outlets 11; after the dynamic flow distributor 1 distributes the flows to the N branch outlets 11, if there are any remaining flows, they are distributed to the main outlet 12.

[0079] The inlet ends of the aforementioned main pipeline 2 and the N aforementioned branch pipelines 3 are respectively connected to the N+1 aforementioned branch pipeline diversion outlets 11 to guide the diverted water flow.

[0080] The outlets of N branch lines 3 are all connected to the inlet of the aforementioned manifold 4.

[0081] The outlet end of the aforementioned manifold 4 is connected to the side wall of the aforementioned main pipeline 2 near the outlet end, so that the water from the N aforementioned branch pipelines 3 flows through the aforementioned manifold 4 and into the aforementioned main pipeline 2.

[0082] Each of the N branch lines 3 is equipped with a hydro-generator unit 31; the N hydro-generator units 31 are used to supply power to the N devices respectively.

[0083] Optionally, the aforementioned turbine generator set 31 adopts a constant-screw shaft extension axial-flow turbine generator set based on the reaction principle to adapt to the low head in the water purification plant.

[0084] Preferably, the above-mentioned turbine unit is selected from the GD006-WZ-80 type turbine, and equipped with the SFW125-12 / 850 type brushless excitation generator, as well as the GYWT-600 / 16 type microcomputer electro-hydraulic speed governor, WPET-8000-V1 excitation grid-connected integrated control cabinet, 400VMNS type low-voltage distribution cabinet, 4*240+1*120 low-voltage flame-retardant cables and other electrical equipment.

[0085] The aforementioned allocation processing module is data-connected to the aforementioned dynamic flow allocator 1 and is used to allocate the aforementioned total flow to obtain the aforementioned allocated flow sequence.

[0086] In an optional embodiment, the allocation processing module described above includes a priority generation unit and an allocation traffic generation unit.

[0087] The aforementioned priority generation unit is data-connected to the aforementioned allocation flow generation unit and is used to process the preset basic priority sequence and rated power sequence to obtain the real-time priority sequence.

[0088] The aforementioned distribution flow generation unit is data-connected to the aforementioned dynamic flow distributor 1. It processes the aforementioned total flow, the aforementioned real-time priority sequence, and the preset minimum power demand sequence, power generation efficiency sequence, and maximum flow sequence to obtain the distribution flow sequence, and sends the aforementioned distribution flow sequence to the aforementioned dynamic flow distributor 1.

[0089] It should be noted that the aforementioned priority generation unit and allocation flow generation unit can be implemented based on PLC, microcontroller or FPGA, and the embodiments of the present invention are not limited thereto.

[0090] As can be seen, the end-point hydropower generation system described in the embodiments of the present invention can obtain a real-time priority sequence by combining the equipment load characteristics and real-time operating conditions, and distribute the flow among multiple branches by combining the real-time total flow. This enables the rational use of water flow when both the end-point water flow and the equipment operating conditions are dynamically changing, thereby maximizing the overall power generation benefits while ensuring basic production needs as much as possible.

[0091] Example 2

[0092] Please see Figure 2 , Figure 2 This is a schematic flowchart of a terminal hydropower generation method disclosed in an embodiment of the present invention. Figure 2 The described end-of-pipe hydropower generation method is applied to the field of comprehensive end-of-pipe hydropower utilization, such as end-of-pipe hydropower generation in water purification plants. This invention is not limited to specific applications. Figure 2 As shown, this end-point hydropower generation method includes:

[0093] S1, preset basic priority sequence, rated power sequence, minimum electricity demand sequence, power generation efficiency sequence and maximum flow sequence.

[0094] The aforementioned basic priority sequence includes N basic priority values; the aforementioned rated power sequence includes N rated power values; the aforementioned minimum electricity demand sequence includes N minimum electricity demand values; the aforementioned power generation efficiency sequence includes N power generation efficiency values; and the aforementioned maximum flow sequence includes N maximum flow values.

[0095] It should be noted that the above N basic priority values ​​represent the basic power supply priorities of the N hydro-generator units and 31 power supply devices. The corresponding basic power supply priority can be determined according to the load type of the equipment. For example, core equipment such as water pumps, disinfection systems, and PLC control cabinets, where power outages would cause water supply interruptions or substandard water quality, can have their basic power supply priority set to 3; auxiliary equipment such as mixers and chemical dosing equipment, where short-term power outages are tolerable but require rapid restoration, can have their basic power supply priority set to 2; and non-critical equipment such as lighting and office power supplies, where power outages have a smaller impact, can have their basic power supply priority set to 1.

[0096] It should be noted that the above N rated power values ​​are the rated power values ​​of the power supply equipment of the N hydro-generator units 31, in kW, which can be obtained from the nameplate of the corresponding equipment.

[0097] It should be noted that the above N minimum power demand amounts represent the minimum power demand required to ensure the basic operation of the power supply equipment of the N hydro-generator units 31, with the unit being kWh / s. These are determined by the operators based on actual needs and equipment operating characteristics.

[0098] It should be noted that the above N power generation efficiency values ​​are the unit flow power generation efficiency of N hydro-generator units 31, with units of kWh / (m³). 3 ·s), can be obtained from the user manual of the hydro-generator set 31.

[0099] It should be noted that the above maximum flow sequence represents the maximum flow rate of water that can pass through N branches 3, in m³. 3 / s can be determined by the pipe diameter of the corresponding branch 3.

[0100] S2. Using the priority generation unit of the allocation processing module, the above basic priority sequence and the above rated power sequence are processed to obtain the real-time priority sequence; the above real-time priority sequence includes N real-time priority values.

[0101] S3. Using the dynamic flow distributor 1 described above, the total flow is detected.

[0102] S4. Using the allocation flow generation unit of the above allocation processing module, the above total flow, the above minimum power demand sequence, the above power generation efficiency sequence, the above real-time priority sequence and the above maximum flow sequence are processed to obtain the allocation flow sequence; the above allocation flow sequence includes N allocation flows.

[0103] S5. Using the dynamic flow distributor 1 described above, adjust the flow of N branch outlets 11 and 1 main outlet 12 based on the above flow distribution sequence.

[0104] S6. Repeat S2 to S5 until the total flow rate is 0.

[0105] It should be noted that as long as water flows into the water inlet of the dynamic flow distributor 1, the above-mentioned S2 to S5 cycles will continue, driving N branches 3 to generate electricity.

[0106] As can be seen, the end-point hydropower generation method described in the embodiments of the present invention can obtain a real-time priority sequence by combining the equipment load characteristics and real-time operating conditions, and allocate the flow by combining the real-time total flow. This enables the rational use of water flow when both the end-point water flow and the equipment operating conditions are dynamically changing, thereby maximizing the overall power generation benefits while ensuring basic production needs as much as possible.

[0107] In an optional embodiment, the above-described processing of the basic priority sequence and the rated power sequence to obtain a real-time priority sequence includes:

[0108] S21. Obtain the actual power sequence; the actual power sequence includes N actual power values.

[0109] It should be noted that the above N actual power values ​​represent the actual operating power of the N hydro-generator units 31 power supply equipment, which can be obtained from the SCADA system of the water purification plant.

[0110] S22. Using the real-time priority calculation model, the above actual power sequence is processed to obtain the real-time priority sequence.

[0111] The expression for the above real-time priority calculation model is:

[0112]

[0113] In the formula, S i R is the i-th real-time priority value in the aforementioned real-time priority sequence; i PA is the i-th basic priority value in the aforementioned basic priority sequence; i PB is the i-th actual power value in the above actual power sequence; iThe above rated power value is the i-th of the above rated power sequence; α and β are the preset base coefficient and load coefficient, respectively, and α+β=1; i is an integer from 1 to N.

[0114] Preferably, both α and β are 0.5.

[0115] As can be seen, the above real-time priority sequence comprehensively considers the basic power demand and real-time power consumption of each device, and can reflect the dynamic changes in the power supply demand of the devices.

[0116] In another optional embodiment, the above-mentioned processing of the total flow, the minimum electricity demand sequence, the power generation efficiency sequence, the real-time priority sequence, and the maximum flow sequence to obtain the allocated flow sequence includes:

[0117] S41. Using the basic flow calculation model, process the above minimum electricity demand sequence and the above power generation efficiency sequence to obtain the basic flow sequence; the above basic flow sequence includes N basic flows.

[0118] The expression for the above basic flow calculation model is:

[0119]

[0120] In the formula, qmi i E is the i-th basic flow in the above basic flow sequence; i For the i-th of the aforementioned minimum electricity demand sequence; η i Let i be the i-th power generation efficiency value in the above power generation efficiency sequence; i is an integer from 1 to N.

[0121] S42. Using the total excess flow calculation model, process the above basic flow sequence and the above total flow to obtain the total excess flow.

[0122] The expression for the above total excess flow calculation model is:

[0123]

[0124] In the formula, Q remain The total excess flow mentioned above; Q total This represents the total flow rate mentioned above.

[0125] S43. Determine whether the total excess flow is greater than 0 to obtain the flow determination result.

[0126] When the above traffic judgment result is yes, the above real-time priority sequence, the above total excess traffic, the above basic traffic sequence and the above maximum traffic sequence are processed to obtain the above allocated traffic sequence.

[0127] When the above traffic judgment result is negative, the above real-time priority sequence, the above total traffic, and the above basic traffic sequence are processed to obtain the above allocated traffic sequence.

[0128] It should be noted that if the above flow judgment result is negative, it means that the total flow is currently insufficient to meet the basic operation of all devices; conversely, if the flow judgment result is positive, it means that the total flow can be allocated additionally in addition to meeting the basic operation of the devices.

[0129] It is evident that by dividing the flow into the basic flow required to ensure the basic operation of the equipment, and the total excess flow that can be dynamically allocated, the flow can be finely allocated in response to the dynamic changes in the total flow and the power consumption of the equipment, thereby improving the overall economic efficiency while ensuring the basic operating capacity of the equipment.

[0130] In another optional embodiment, the above-mentioned processing of the real-time priority sequence, the total excess traffic, the basic traffic sequence, and the maximum traffic sequence to obtain the allocated traffic sequence includes:

[0131] S431. Using the additional traffic calculation model, process the above real-time priority sequence and the above total excess traffic to obtain the additional traffic sequence; the above additional traffic sequence includes N additional traffic items.

[0132] S432. Using the first flow allocation model, process the above-mentioned basic flow sequence, the above-mentioned additional flow sequence, and the above-mentioned maximum flow sequence to obtain the allocated flow sequence.

[0133] In yet another optional embodiment, the expression for the above-mentioned additional traffic calculation model is:

[0134]

[0135] In the formula, qe i For the i-th additional traffic in the above additional traffic sequence; P i This refers to the i-th real-time priority value in the aforementioned real-time priority sequence.

[0136] As can be seen, by using the additional traffic calculation model, the total excess traffic is allocated according to the proportion of the corresponding real-time priority, resulting in additional traffic for N branches. This ensures that the branches corresponding to devices with higher real-time priority can receive more additional traffic, thereby generating more power beyond the basic operating requirements and improving the guarantee capability for high real-time priority devices.

[0137] In yet another optional embodiment, the expression for the first traffic allocation model described above is:

[0138] q i=min(qmi) i +qe i ,qma i )

[0139] In the formula, q i For the i-th of the above-mentioned allocated flow sequence; qma i This refers to the i-th maximum flow in the aforementioned maximum flow sequence.

[0140] As can be seen, the above-mentioned first flow allocation model ensures that the total allocated flow of each branch, after the corresponding additional flow is added in addition to the basic flow, does not exceed the carrying capacity of the corresponding branch. This makes the allocation of additional flow more accurate, avoids accidents such as water leakage caused by excessive flow, and improves the overall economic efficiency.

[0141] In another optional embodiment, the above-mentioned processing of the real-time priority sequence, the total traffic, and the basic traffic sequence to obtain the allocated traffic sequence includes:

[0142] S433, initialize the cumulative allocated traffic to 0.

[0143] The allocation tag sequence is initialized to a sequence of N allocation tags with a value of 0.

[0144] All N of the above-mentioned allocated flows in the above-mentioned allocated flow sequence are initialized to 0.

[0145] S434. Set the current number k to the number of the maximum value of all the real-time priority values ​​in the real-time priority sequence whose corresponding allocation flags are equal to 0.

[0146] It should be noted that the N real-time priority values ​​in the above real-time priority sequence correspond one-to-one with the N allocation tags in the allocation tag sequence, according to their order of arrangement.

[0147] Set the value of the kth allocation tag in the above allocation tag sequence to 1.

[0148] S435. Using the second flow allocation model, based on the total flow, the basic flow sequence, and the current number, update the allocated flow sequence and the cumulative allocated flow to obtain the updated allocated flow sequence and the cumulative allocated flow.

[0149] S436. Repeat S434 to S435 until the values ​​of the above allocation markers in the above allocation marker sequence are all 1.

[0150] In yet another optional embodiment, the expression for the second traffic allocation model described above is:

[0151] qq k =min(qmi) k Q total -S)

[0152] S * =S+qq k

[0153] In the formula, k is the current number mentioned above; qq k The updated value of the kth allocated flow in the above allocated flow sequence; qmi k For the kth basic flow in the above basic flow sequence; S and S * The above cumulative traffic allocations are for before and after the update, respectively.

[0154] It is evident that when the total flow is insufficient to meet the basic operation of all equipment, the basic operation of equipment with high real-time priority is prioritized through cyclical allocation, thereby ensuring the smooth operation of basic production activities.

[0155] As can be seen, the end-point hydropower generation method described in the embodiments of the present invention can obtain a real-time priority sequence by combining the equipment load characteristics and real-time operating conditions, and perform fine allocation of flow by combining the real-time total flow. This enables the rational use of water flow when both the end-point water flow and the equipment operating conditions are dynamically changing, thereby maximizing the overall power generation benefits while ensuring basic production needs as much as possible.

[0156] The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0157] Through the detailed description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, including read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0158] Finally, it should be noted that the terminal hydropower generation system and method disclosed in the embodiments of the present invention are merely preferred embodiments of the present invention and are only used to illustrate the technical solutions of the present invention, not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A terminal water energy power generation system, characterized by, The terminal water power generation system comprises a dynamic flow distributor, a main pipeline, N branch pipelines, a converging pipeline and a distribution processing module. The dynamic flow distributor is provided with a water flow inlet connected to a main drainage outlet, N branch flow outlets and one main flow outlet, is used for detecting the total flow flowing into the water flow inlet, and real-time adjusting the flow of the N branch flow outlets and the main flow outlet according to the distribution flow sequence from the distribution processing module. N is an integer greater than 1. The distribution flow sequence comprises N distribution flows. The inlet ends of the main pipeline and the N branch pipelines are connected with N+1 branch flow outlets respectively, for guiding the water flow after diversion. The outlet ends of the N branch pipelines are connected to the inlet end of the converging pipeline. The outlet end of the converging pipeline is connected to the side wall of the main pipeline near the outlet end, so that the water flow of the N branch pipelines converges into the main pipeline through the converging pipeline. N water turbine generator sets are arranged on the N branch pipelines respectively, and are used for supplying power to N devices. The distribution processing module is in data connection with the dynamic flow distributor, is used for distribution processing of the total flow, and obtains the distribution flow sequence.

2. The end-water power generation system of claim 1, wherein, The distribution processing module comprises a priority generation unit and a distribution flow generation unit. The priority generation unit is in data connection with the distribution flow generation unit, is used for processing the preset basic priority sequence and rated power sequence, and obtains a real-time priority sequence. The distribution flow generation unit is in data connection with the dynamic flow distributor, is used for processing the total flow, the real-time priority sequence, and preset minimum power demand sequence, power generation efficiency sequence and maximum flow sequence, obtains the distribution flow sequence, and sends the distribution flow sequence to the dynamic flow distributor.

3. A method of generating electricity from the end of water, characterized by, The method is applied to the terminal water power generation system of any one of claims 1-2, and the method comprises the following steps: S1, presetting a basic priority sequence, a rated power sequence, a minimum power demand sequence, a power generation efficiency sequence and a maximum flow sequence; The basic priority sequence comprises N basic priority values, the rated power sequence comprises N rated power values, the minimum power demand sequence comprises N minimum power demands, the power generation efficiency sequence comprises N power generation efficiency values, and the maximum flow sequence comprises N maximum flows; S2, using a distribution processing module to process the basic priority sequence and the rated power sequence, and obtaining a real-time priority sequence; the real-time priority sequence comprises N real-time priority values; S3, using the dynamic flow distributor to detect a total flow; S4, using the distribution processing module to process the total flow, the minimum power demand sequence, the power generation efficiency sequence, the real-time priority sequence and the maximum flow sequence, and obtaining a distribution flow sequence; S5, using the dynamic flow distributor to adjust the flow of N branch flow outlets and one main flow outlet based on the distribution flow sequence; S6, repeating S2-S5 until the total flow is 0.

4. The end-water power generation method according to claim 3, characterized by, The processing of the base priority sequence and the rated power sequence to obtain a real-time priority sequence comprises: S21, acquiring an actual power sequence; the actual power sequence comprises N actual power values; S22, processing the actual power sequence by using a real-time priority calculation model to obtain a real-time priority sequence; An expression of the real-time priority calculation model is: wherein S i is the ith real-time priority value of the real-time priority sequence; R i is the ith base priority value of the base priority sequence; PA i is the ith actual power value of the actual power sequence; PB i is the ith rated power value of the rated power sequence; and α and β are preset base and load coefficients, respectively, and α + β = 1; and i is an integer from 1 to N.

5. The end-water power generation method according to claim 4, characterized by, The processing of the total flow, the minimum electricity demand quantity sequence, the power generation efficiency sequence, the real-time priority sequence and the maximum flow sequence to obtain a distribution flow sequence comprises: S41, processing the minimum electricity demand quantity sequence and the power generation efficiency sequence by using a base flow calculation model to obtain a base flow sequence; the base flow sequence comprises N base flows; An expression of the base flow calculation model is: In the formula, qmi i is the i-th basic flow of the basic flow sequence; E i is the i-th minimum electricity demand of the minimum electricity demand sequence; η i is the i-th power generation efficiency value of the power generation efficiency sequence; i is an integer from 1 to N; S42, processing the base flow sequence and the total flow by using a total excess flow calculation model to obtain a total excess flow; An expression of the total excess flow calculation model is: where Q remain is the total excess flow; Q total is the total flow; S43, judging whether the total excess flow is greater than 0 to obtain a flow judgment result; When the flow judgment result is yes, processing the real-time priority sequence, the total excess flow, the base flow sequence and the maximum flow sequence to obtain the distribution flow sequence; When the flow judgment result is no, processing the real-time priority sequence, the total flow and the base flow sequence to obtain the distribution flow sequence.

6. The end-water power generation method according to claim 5, wherein The processing of the real-time priority sequence, the total excess flow, the base flow sequence and the maximum flow sequence to obtain the distribution flow sequence comprises: S431, processing the real-time priority sequence and the total excess flow by using an additional flow calculation model to obtain an additional flow sequence; the additional flow sequence comprises N additional flows; S432, processing the base flow sequence, the additional flow sequence and the maximum flow sequence by using a first flow distribution model to obtain a distribution flow sequence.

7. The end-water power generation method according to claim 6, characterized by, An expression of the additional flow calculation model is: where qe i is the i-th of the additional flows; P i is the i-th of the real-time priority values.

8. The end-water power generation method according to claim 7, characterized by, An expression of the first flow distribution model is: q i = min(qmi i + qe i , qma i ) wherein q i is the i-th allocated flow of the sequence of allocated flows; qma i is the i-th maximum flow of the sequence of maximum flows.

9. The end-water power generation method of claim 5, wherein, The processing of the real-time priority sequence, the total flow and the base flow sequence to obtain the distribution flow sequence comprises: S433, initializing an accumulated distribution flow to 0; initializing a distribution mark sequence to a sequence of N distribution marks with values of 0; initializing N distribution flows of the distribution flow sequence to 0; S434, setting a current number k to a maximum value of the real-time priority sequence corresponding to all distribution marks equal to 0 in the real-time priority sequence; setting a value of a kth distribution mark of the distribution mark sequence to 1; S435, updating the allocated flow sequence and the cumulative allocated flow based on the total flow, the base flow sequence and the current number by using the second flow allocation model, to obtain an updated allocated flow sequence and the cumulative allocated flow; S436, repeating S434-S435 until the values of the allocation marks in the allocation mark sequence are all 1.

10. The end-water power generation method according to claim 9, characterized by, The expression of the second flow allocation model is: qq k = min(qmi k , Q total -S) S * = S + qq k where k is the current index; qq k is the updated value of the kth allocated flow of the allocated flow sequence; qmi k is the kth base flow of the base flow sequence; S and S * are the cumulative allocated flow before and after the update, respectively.

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