Water conservancy kinetic energy analysis method for pumped storage power station and storage medium

Abstract

The invention discloses a water conservancy kinetic energy analysis method for a pumped storage power station and a storage medium, and belongs to the technical field of pumped storage power stations. Water inlet and outlet water conservancy calculation; hydraulic calculation; calculating energy conversion; calculating a daily power generation process; calculating initial water storage; water replenishing and water loss calculation during normal operation; calculating the pump turbine. According to the method, the function of quickly calculating and analyzing the hydraulic kinetic energy of the pumped storage power station is realized, the calculation time is greatly shortened, and the working efficiency of designers is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of pumped storage power stations, in particular to a method for analyzing hydraulic kinetic energy of a pumped storage power station and a storage medium. Background Art

[0002] The development of pumped storage is a key means to build a new power system with new energy as the main body. It is not only conducive to ensuring the orderly withdrawal of traditional energy, realizing large-scale safe and reliable replacement of new energy, and promoting green and low-carbon development, but also has important practical significance for achieving the "dual carbon" goal. Against this background, various regions have successively adjusted their pumped storage development plans and vigorously developed pumped storage. Pumped storage, as a low-carbon, environmentally friendly, safe and reliable energy storage technology, has been widely favored.

[0003] At present, designers need to manually calculate the hydraulic kinetic energy head, flow rate and water energy of pumped storage power stations. Due to the large number of formulas involved and the large amount of calculation, it often takes a long time. Therefore, how to reduce the workload of designers in pumped storage power station hydraulic kinetic energy calculation and improve work efficiency has become an urgent problem to be solved. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method and storage medium for analyzing hydraulic kinetic energy of a water storage power station, which can rapidly calculate data and obtain a data analysis table with the aid of a computer programming tool, thereby greatly improving work quality and work efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A method for rapidly calculating and analyzing the hydraulic kinetic energy of a pumped storage power station comprises the following steps: Step 1, input the rated water head data set, perform hydraulic calculation, and obtain the power generation flow output data set; Step 2, performing hydraulic calculations on the water inlet and outlet according to the power generation flow output data set in step 1, and obtaining the water inlet / outlet data sets of the upper and lower reservoirs; Step 3, according to the power generation flow output data set of step 1, the pumping flow value is input, hydraulic calculation is performed, and the head loss data set is obtained; Step 4, according to the head loss data set in step 3, import the reservoir capacity curve file, and obtain the total energy and total energy consumption data set through energy conversion calculation; Step 5, based on the head loss data set in step 3 and the total energy and total energy consumption data set in step 4, calculate the daily power generation process to obtain the upper and lower reservoir water level and storage capacity data set in each time period; Step 6, based on the total energy and total energy consumption data set in step 4, calculate the initial water storage capacity to obtain a power generation water storage capacity table and a water storage capacity analysis table; Step 7, based on the total energy and total energy consumption data set of step 4, calculate the water replenishment and water loss during normal operation, and obtain an analysis table of annual evaporation and leakage losses of the upper / lower reservoirs, evaporation of the upper / lower reservoirs, and water loss in each month of the operation period; Step 8, based on the power generation flow output data set of step 1, perform pump turbine calculation to obtain the suction height data set.

[0006] The further improvement of the technical solution of the present invention is that: in step 1, the input rated water head data group includes: rated water head, installed capacity, full-time hours, number of units, normal water level and dead water level data of the upper / lower reservoir; The power generation flow output data group includes: power generation flow, power generation storage capacity, maximum / minimum gross head, maximum / minimum head, maximum / minimum head, flow velocity, distance-to-height ratio and Gordon formula judgment data.

[0007] A further improvement of the technical solution of the present invention is that: in step 2, according to the power generation flow calculated in step 1, the inlet / outlet data group of the upper and lower reservoirs is calculated by setting the basic parameters of the inlet / outlet; The basic parameters of the inlet / outlet include the number of inlets / outlets, the number of holes of a single inlet / outlet trash rack, the net flow velocity of the trash rack, the height of the vortex beam, the height of the input gate hole, the length of the trash rack section of the upper reservoir, the length of the trash rack section of the lower reservoir, the elevation of the bottom of the lower reservoir, and the length of the tunnel section; The inlet / outlet data group of the upper and lower reservoirs includes the elevation of the trash rack maintenance platform exiting the upper / lower reservoir, the trash rack opening height, the trash rack opening width, the minimum submergence depth, the inlet / outlet bottom plate elevation, the trash rack section height, the trash rack section length, the inlet / outlet front edge width, the inlet / outlet total length and the dead water level data of the lower reservoir.

[0008] A further improvement of the technical solution of the present invention is that in step 3, according to the power generation flow calculated in step 1, the pumping flow is input at the same time, and according to four types of power generation by two units, power generation by one unit, pumping by two units, and pumping by one unit, a table along the way and a local table are established according to conventional formulas, and the quantity, pipe diameter, width, height, and area data are respectively input in the table along the way, and the angle, pipe diameter, width, and height data are input in the local table, and the respective head losses are calculated, and finally the head loss along the way and the local head loss and the total head loss are accumulated and added together; the head loss data group includes the head loss along the way, the local head loss, and the total head loss.

[0009] A further improvement of the technical solution of the present invention is that: in step 4, by importing the reservoir capacity curve Excel file, the upper and lower reservoir capacity curve data tables are obtained, including water level, area, and storage capacity values; Input the power generation efficiency and the depth of the i-th layer of water, calculate the data table of the corresponding storage capacity of the lower reservoir, the corresponding water level of the lower reservoir, the average water head of the i-th layer, and the power generation of the i-th layer of water body for different water volumes of the power generation, and calculate the total energy and installed capacity; Input the pumping efficiency and the water depth of the i-th layer. According to the pumping data of the two units calculated in step 3, calculate the corresponding storage capacity of the upper reservoir, the corresponding water level of the upper reservoir, the average head of the i-th layer, the energy consumption of the i-th layer of water body, and calculate the total energy consumption data; where i is the number of water depth layers, and the water depth of each layer is 1 meter; The total energy and total energy consumption data group includes total energy, installed capacity and total energy consumption.

[0010] A further improvement of the technical solution of the present invention is that: in step 5, according to the installed capacity of step 4 and the total head loss calculated in step 3, a data table of the upper and lower reservoir water levels and storage capacity data groups for each time period is calculated; the upper and lower reservoir water levels and storage capacity data groups for each time period include the upper reservoir water level, upper reservoir storage capacity, gross head, average gross head, water loss, net head, power generation flow (single machine), power generation output, storage capacity, lower reservoir water level, and lower reservoir storage capacity data at time intervals of 0.1 hours within the full-power hour.

[0011] A further improvement of the technical solution of the present invention is that: in step 6, according to the installed capacity calculated in step 4, the commissioning and commissioning sequence of the first unit with water, the first unit power generation, the second unit power generation, the third unit power generation and the fourth unit power generation, the dead storage capacity of the upper reservoir, the dead storage capacity of the lower reservoir, the water volume filling the water diversion tunnel, the water volume required for unit commissioning, the water loss spare storage capacity, the frozen storage capacity, and the water content of the slag in the upper and lower reservoirs are input to calculate the power generation water storage data table; The data of the first unit commissioning, the first unit, the second unit, the third unit and the fourth unit at the dam site, the cumulative water inflow, the cumulative evaporation and leakage losses and the cumulative construction water use are input to obtain the water storage capacity analysis table.

[0012] A further improvement of the technical solution of the present invention is that: in step 7, according to the installed capacity of step 4, the annual leakage amount is input to calculate the data table of annual evaporation leakage loss of the upper and reservoirs; the evaporation increase and loss is input to obtain the annual evaporation data table of the upper / lower reservoirs, including the evaporation values ​​of the upper and lower reservoirs for each month; the leakage loss amount and personnel water use data are input to obtain the water loss analysis table for each month of the operation period, including the evaporation loss amount and the total value for each month.

[0013] A further improvement of the technical solution of the present invention is that: in step 8, according to the maximum / minimum head, rated head, dead water level of the lower reservoir calculated in step 1 and the single unit capacity calculated according to the installed capacity and the number of units, the maximum input of the water pump working condition is calculated, including the electric rated input power of the generator motor, the electric rated shaft output power of the generator motor in the electric working condition, and the value of the maximum input of the water pump working condition; Calculate the data table of the specific speed of the pump and the specific speed of the turbine; Input the speed value to get the speed corresponding to the specific speed and specific speed coefficient of the pump working condition and the turbine working condition; Finally, the cavitation coefficient and suction height values ​​of the maximum head and the minimum head are calculated; The suction height data group includes the maximum input of the water pump working condition, the specific speed of the water pump working condition, the specific speed of the turbine working condition, the speed corresponding to the specific speed and the specific speed coefficient, and the suction height value.

[0014] A storage medium for a method for analyzing hydraulic kinetic energy of a pumped-storage power station, the storage medium comprising stored instructions, wherein when the instructions are executed, a device where the storage medium is located is controlled to execute the method for analyzing hydraulic kinetic energy of a pumped-storage power station.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by the present invention is: The present invention can quickly calculate the hydraulic kinetic energy by inputting some parameters and importing the reservoir capacity curve file, so as to assist designers in building a hydraulic kinetic energy calculation model for a pumped-storage power station without the need for manual step-by-step calculation, thereby greatly improving the efficiency of pumped-storage hydraulic energy calculation and analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a flow chart of a method for quickly calculating and analyzing the hydraulic kinetic energy of a pumped storage power station provided in an embodiment of the present invention; Figure 2 Schematic diagram of water head calculation data in an embodiment of the present invention; Figure 3 This is a schematic diagram of hydraulic calculation data for water inlets and outlets in an embodiment of the present invention; Figure 4 It is a table and data schematic diagram of hydraulic calculation in an embodiment of the present invention; Figure 5 It is a table and data schematic diagram of energy conversion calculation in an embodiment of the present invention; Figure 6 This is a schematic diagram of a calculation table for a daily power generation process in an embodiment of the present invention; Figure 7 Schematic diagram of the calculation table of initial water storage capacity in an embodiment of the present invention; Figure 8Schematic diagram of a calculation table for water replenishment and water loss during normal operation in an embodiment of the present invention; Fig. 9 It is a calculation table and data diagram of the pump turbine in the embodiment of the present invention. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below with reference to the accompanying drawings and embodiments: like Figure 1 As shown, a method for quickly calculating and analyzing the hydraulic kinetic energy of a pumped storage power station comprises the following steps: Step 1, input the rated water head data set, perform hydraulic calculation, and obtain the power generation flow output data set; like Figure 2 As shown, specifically, the input rated water head data group includes: rated water head, installed capacity, full-power hours, number of units, normal water level and dead water level data of the upper / lower reservoir; The power generation flow output data group includes: power generation flow, power generation storage capacity, maximum / minimum gross head, maximum / minimum head, maximum / minimum head, flow velocity, distance-to-height ratio and Gordon formula judgment data.

[0018] Step 2, performing hydraulic calculations on the water inlet and outlet according to the power generation flow output data set in step 1, and obtaining the water inlet / outlet data sets of the upper and lower reservoirs; Specifically, according to the power generation flow calculated in step 1, by setting the basic parameters of the inlet / outlet, the inlet / outlet data group of the upper and lower reservoirs is calculated; like Figure 3 As shown, the basic parameters of the inlet / outlet include the number of inlets / outlets, the number of trash rack holes of a single inlet / outlet, the net flow velocity of the trash rack, the height of the vortex beam, as well as the height of the input gate hole, the length of the trash rack section of the upper reservoir, the length of the trash rack section of the lower reservoir, the elevation of the bottom of the lower reservoir, and the length of the tunnel section; the inlet / outlet data group of the upper and lower reservoirs includes the elevation of the trash rack maintenance platform leaving the upper / lower reservoir, the height of the trash rack hole, the width of the trash rack hole, the minimum submergence depth, the elevation of the inlet / outlet bottom plate, the height of the trash rack section, the length of the trash rack section, the width of the front edge of the inlet / outlet, the total length of the inlet / outlet, and the dead water level data of the lower reservoir.

[0019] Step 3, according to the power generation flow output data set of step 1, the pumping flow value is input, hydraulic calculation is performed, and the head loss data set is obtained; like Figure 4As shown, specifically, according to the power generation flow calculated in step 1, the pumping flow is input at the same time, and according to four types of two units generating electricity, one unit generating electricity, two units pumping, and one unit pumping, the along-the-way table and the local table are established according to the conventional formula, and the quantity, pipe diameter, width, height, and area data are input in the along-the-way table, and the angle, pipe diameter, width, and height data are input in the local table, and the respective head losses are calculated. Finally, the along-the-way head loss and the local head loss and the total head loss are added up; the head loss data group includes the along-the-way head loss, the local head loss, and the total head loss.

[0020] Step 4, according to the head loss data set in step 3, import the reservoir capacity curve file, and obtain the total energy and total energy consumption data set through energy conversion calculation; Specifically, by importing the reservoir capacity curve Excel file, the upper and lower reservoir capacity curve data tables are obtained, including water level, area, and storage capacity values; Input the power generation efficiency and the depth of the i-th layer of water, calculate the data table of the corresponding storage capacity of the lower reservoir, the corresponding water level of the lower reservoir, the average water head of the i-th layer, and the power generation of the i-th layer of water body for different water volumes of the power generation, and calculate the total energy and installed capacity; Input the pumping efficiency and the water depth of the i-th layer. According to the pumping data of the two units calculated in step 3, calculate the corresponding storage capacity of the upper reservoir for different energy-consuming water volumes, the corresponding water level of the upper reservoir, the average head of the i-th layer, the energy consumption of the i-th layer of water, and calculate the total energy consumption data; where i is the number of water depth layers, and the water depth of each layer is 1 meter.

[0021] like Figure 5 As shown, the total energy and total energy consumption data set includes total energy, installed capacity and total energy consumption.

[0022] Step 5, based on the head loss data set in step 3 and the total energy and total energy consumption data set in step 4, calculate the daily power generation process to obtain the upper and lower reservoir water level and storage capacity data set in each time period; like Figure 6 As shown, specifically: according to the installed capacity of step 4 and the total head loss calculated in step 3, the data table of the upper and lower reservoir water levels and storage capacity data groups for each time period is calculated; the upper and lower reservoir water levels and storage capacity data groups for each time period include the upper reservoir water level, upper reservoir storage capacity, gross head, average gross head, water loss, net head, power generation flow (single machine), power generation output, storage capacity, lower reservoir water level, and lower reservoir storage capacity data at time intervals of 0.1 hours within the full-power hour.

[0023] Step 6, based on the total energy and total energy consumption data set in step 4, calculate the initial water storage capacity to obtain a power generation water storage capacity table and a water storage capacity analysis table; like Figure 7As shown, specifically including: according to the installed capacity calculated in step 4, input the commissioning and commissioning sequence of the first unit with water, the first unit power generation, the second unit power generation, the third unit power generation and the fourth unit power generation, the dead storage capacity of the upper reservoir, the dead storage capacity of the lower reservoir, the water volume to fill the water diversion tunnel, the water volume required for unit commissioning, the water loss spare storage capacity, the frozen storage capacity, the water content of the slag in the upper and lower reservoirs, and calculate the power generation water storage data table; The data of the first unit commissioning, the first unit, the second unit, the third unit and the fourth unit at the dam site, the cumulative water inflow, the cumulative evaporation and leakage losses and the cumulative construction water use are input to obtain the water storage capacity analysis table.

[0024] Step 7, based on the total energy and total energy consumption data set of step 4, calculate the water replenishment and water loss during normal operation, and obtain an analysis table of annual evaporation and leakage losses of the upper / lower reservoirs, evaporation of the upper / lower reservoirs, and water loss in each month of the operation period; like Figure 8 As shown, specifically, according to the installed capacity of step 4, input the annual leakage amount, calculate the data table of annual evaporation leakage loss of the upper and reservoirs; input the evaporation increase and loss, obtain the annual evaporation data table of the upper / lower reservoirs, including the evaporation values ​​of the upper and lower reservoirs for each month; input the leakage loss amount and personnel water use data, and obtain the water loss analysis table for each month in the operation period, including the evaporation loss amount and total value for each month.

[0025] Step 8, based on the power generation flow output data set of step 1, perform pump turbine calculation to obtain the suction height data set.

[0026] like Fig. 9 As shown, specifically, according to the maximum / minimum head, rated head, dead water level of the lower reservoir calculated in step 1, and the capacity of a single unit calculated according to the installed capacity and the number of units, the maximum input of the water pump working condition is calculated, including the electric rated input power of the generator motor, the rated shaft output power of the generator motor in the electric working condition, and the value of the maximum input of the water pump working condition; Calculate the data table of the specific speed of the pump and the specific speed of the turbine; Input the speed value to get the speed corresponding to the specific speed and specific speed coefficient of the pump working condition and the turbine working condition; Finally, the cavitation coefficient and suction height values ​​of the maximum head and the minimum head are calculated; The suction height data group includes the maximum input of the water pump working condition, the specific speed of the water pump working condition, the specific speed of the turbine working condition, the speed corresponding to the specific speed and the specific speed coefficient, and the suction height value.

[0027] The storage medium of the hydraulic kinetic energy analysis method of a pumped-storage power station is loaded on a computer, and the hydraulic kinetic energy analysis method of a pumped-storage power station is executed.

[0028] In summary, the present invention can quickly calculate hydraulic kinetic energy by inputting some parameters and importing the reservoir capacity curve file, and assist designers in building a hydraulic kinetic energy calculation model for a pumped storage power station. This solves the pain point that designers need to process a huge amount of data when calculating the hydraulic kinetic energy of a pumped storage power station, greatly improves work efficiency and work quality, and achieves the purpose of quickly calculating and analyzing the hydraulic kinetic energy of a pumped storage power station.

[0029] Finally, 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for analyzing hydraulic kinetic energy of a pumped storage power station, characterized in that: The following steps are involved: Step 1, input the rated water head data set, perform hydraulic calculation, and obtain the power generation flow output data set; Step 2, performing hydraulic calculations on the water inlet and outlet according to the power generation flow output data set in step 1, and obtaining the water inlet / outlet data sets of the upper and lower reservoirs; Step 3, according to the power generation flow output data set of step 1, the pumping flow value is input, hydraulic calculation is performed, and the head loss data set is obtained; Step 4, according to the head loss data set in step 3, import the reservoir capacity curve file, and obtain the total energy and total energy consumption data set through energy conversion calculation; Step 5, based on the head loss data set in step 3 and the total energy and total energy consumption data set in step 4, calculate the daily power generation process to obtain the upper and lower reservoir water level and storage capacity data set in each time period; Step 6, based on the total energy and total energy consumption data set in step 4, calculate the initial water storage capacity to obtain a power generation water storage capacity table and a water storage capacity analysis table; Step 7, based on the total energy and total energy consumption data set of step 4, calculate the water replenishment and water loss during normal operation, and obtain an analysis table of annual evaporation and leakage losses of the upper / lower reservoirs, evaporation of the upper / lower reservoirs, and water loss in each month of the operation period; Step 8, based on the power generation flow output data set of step 1, perform pump turbine calculation to obtain the suction height data set.

2. The method for analyzing hydraulic kinetic energy of a pumped storage power station according to claim 1, characterized in that: In step 1, the input rated water head data group includes: rated water head, installed capacity, full-power hours, number of units, normal water level and dead water level data of the upper / lower reservoir; The power generation flow output data group includes: power generation flow, power generation storage capacity, maximum / minimum gross head, maximum / minimum head, maximum / minimum head, flow velocity, distance-to-height ratio and Gordon formula judgment data.

3. The method for analyzing hydraulic kinetic energy of a pumped storage power station according to claim 2, characterized in that: In step 2, according to the power generation flow calculated in step 1, by setting the basic parameters of the inlet / outlet, the inlet / outlet data group of the upper and lower reservoirs is calculated; The basic parameters of the inlet / outlet include the number of inlets / outlets, the number of holes of a single inlet / outlet trash rack, the net flow velocity of the trash rack, the height of the vortex beam, the height of the input gate hole, the length of the trash rack section of the upper reservoir, the length of the trash rack section of the lower reservoir, the elevation of the bottom of the lower reservoir, and the length of the tunnel section; The inlet / outlet data group of the upper and lower reservoirs includes the elevation of the trash rack maintenance platform exiting the upper / lower reservoir, the trash rack opening height, the trash rack opening width, the minimum submergence depth, the inlet / outlet bottom plate elevation, the trash rack section height, the trash rack section length, the inlet / outlet front edge width, the inlet / outlet total length and the dead water level data of the lower reservoir.

4. The method for analyzing hydraulic kinetic energy of a pumped storage power station according to claim 2, characterized in that: In step 3, according to the power generation flow calculated in step 1, the pumping flow is input at the same time. According to the four types of two units generating electricity, one unit generating electricity, two units pumping, and one unit pumping, the along-the-way table and the local table are established according to the conventional formula. The quantity, pipe diameter, width, height, and area data are input in the along-the-way table, and the angle, pipe diameter, width, and height data are input in the local table. The respective head losses are calculated, and finally the along-the-way head loss and the local head loss and the total head loss are added up; the head loss data group includes the along-the-way head loss, the local head loss, and the total head loss.

5. The method for analyzing hydraulic kinetic energy of a pumped storage power station according to claim 4, characterized in that: In step 4, by importing the reservoir capacity curve Excel file, the upper and lower reservoir capacity curve data tables are obtained, including water level, area, and storage capacity values; Input the power generation efficiency and the depth of the i-th layer of water, calculate the data table of the corresponding storage capacity of the lower reservoir, the corresponding water level of the lower reservoir, the average water head of the i-th layer, and the power generation of the i-th layer of water body for different water volumes of the power generation, and calculate the total energy and installed capacity; Input the pumping efficiency and the water depth of the i-th layer. According to the pumping data of the two units calculated in step 3, calculate the corresponding storage capacity of the upper reservoir, the corresponding water level of the upper reservoir, the average head of the i-th layer, the energy consumption of the i-th layer of water body, and calculate the total energy consumption data; where i is the number of water depth layers, and the water depth of each layer is 1 meter; The total energy and total energy consumption data group includes total energy, installed capacity and total energy consumption.

6. The method for analyzing hydraulic kinetic energy of a pumped storage power station according to claim 5, characterized in that: In step 5, according to the installed capacity of step 4 and the total head loss calculated in step 3, the data table of the upper and lower reservoir water levels and storage capacity data groups for each time period is calculated; the upper and lower reservoir water levels and storage capacity data groups for each time period include the upper reservoir water level, upper reservoir storage capacity, gross head, average gross head, water loss, net head, power generation flow (single machine), power generation output, storage capacity, lower reservoir water level, and lower reservoir storage capacity data at time intervals of 0.1 hours within the full-power hour.

7. The method for analyzing hydraulic kinetic energy of a pumped storage power station according to claim 5, characterized in that: In step 6, according to the installed capacity calculated in step 4, the commissioning and commissioning sequence of the first unit with water, the first unit generating electricity, the second unit generating electricity, the third unit generating electricity and the fourth unit generating electricity, the dead storage capacity of the upper reservoir, the dead storage capacity of the lower reservoir, the water volume filling the water diversion tunnel, the water volume required for unit commissioning, the water loss reserve storage capacity, the frozen storage capacity, and the water content of the slag in the upper and lower reservoirs are input to calculate the power generation water storage data table; The data of the first unit commissioning, the first unit, the second unit, the third unit and the fourth unit at the dam site, the cumulative water inflow, the cumulative evaporation and leakage losses and the cumulative construction water use are input to obtain the water storage capacity analysis table.

8. The method for analyzing hydraulic kinetic energy of a pumped storage power station according to claim 5, characterized in that: In step 7, according to the installed capacity of step 4, the annual leakage volume is input to calculate the data table of annual evaporation leakage loss of the upper and reservoirs; the evaporation increase and loss is input to obtain the annual evaporation volume data table of the upper / lower reservoirs, including the evaporation volume values ​​of the upper and lower reservoirs for each month; the leakage loss volume and personnel water use data are input to obtain the water loss analysis table for each month of the operation period, including the evaporation loss volume and total value for each month.

9. The method for analyzing hydraulic kinetic energy of a pumped storage power station according to claim 2, characterized in that: In step 8, according to the maximum / minimum head, rated head, dead water level of the lower reservoir calculated in step 1 and the capacity of a single unit calculated according to the installed capacity and the number of units, the maximum input of the water pump working condition is calculated, including the electric rated input power of the generator motor, the electric rated shaft output power of the generator motor in the electric working condition, and the value of the maximum input of the water pump working condition; Calculate the data table of the specific speed of the pump and the specific speed of the turbine; Input the speed value to get the speed corresponding to the specific speed and specific speed coefficient of the pump working condition and the turbine working condition; Finally, the cavitation coefficient and suction height values ​​of the maximum head and the minimum head are calculated; The suction height data group includes the maximum input of the water pump working condition, the specific speed of the water pump working condition, the specific speed of the turbine working condition, the speed corresponding to the specific speed and the specific speed coefficient, and the suction height value.

10. A storage medium for a method for analyzing hydraulic kinetic energy of a pumped storage power station, characterized in that: The storage medium includes stored instructions, wherein when the instructions are executed, the device where the storage medium is located is controlled to execute the method for analyzing hydraulic kinetic energy of a pumped storage power station according to any one of claims 1 to 9.

Images