System and method for testing power generation efficiency of ammonia internal combustion generator set
By designing an ammonia internal combustion generator set power generation efficiency test system including a calculation test unit, a power test unit, a data comparison unit, a data adjustment unit and a time unit, the generator cannot test the optimal efficiency under certain conditions. The problem of this has achieved efficient and economical power generation efficiency testing and optimization.
Patent Information
- Application Number
- CN202411628954.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-02-18
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Ammonia internal combustion generator sets cannot test the optimal power generation efficiency under the determined ammonia concentration and generator speed, resulting in a fluctuation of power generation efficiency.
An ammonia internal combustion generator set power generation efficiency testing system is designed, including a calculation test unit, a power test unit, a data comparison unit, a data adjustment unit and a time unit. The system obtains the operating status data and historical data of the generator, calculates the generation frequency and speed, detects the ammonia concentration, tests the generator output power and efficiency, and ensures that the ammonia concentration is detected at the same time point and At the speed, the generator's ammonia consumption is lower than the set standard consumption.
It realizes the precise test of the optimal efficiency working point of the generator under the determined ammonia concentration and generator speed conditions, optimizes the operating conditions of the generator, improves the utilization rate of ammonia, and reduces unnecessary waste of ammonia. and ensure that the power generation efficiency reaches the optimal level.
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Figure CN119471364A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of power generation efficiency testing, and in particular to a power generation efficiency testing system and method for an ammonia internal combustion generator set. Background Art
[0002] The power generation efficiency test of an ammonia internal combustion generator set is usually used to evaluate the power generation efficiency and performance of an ammonia generator set in actual operation. The power generation efficiency test may include a variety of sensors and measuring equipment to test the key indicators of the power output and ammonia consumption rate of the generator set. Through the key indicator data of the test, the operation of the generator set can be optimized to improve its efficiency and economy. When the ammonia internal combustion generator set is injected and burned by ammonia, if the ammonia concentration is high, in order to effectively remove nitrogen oxides (NOx), more ammonia may be required for reaction, which means that the ammonia consumption needs to be continuously increased, indicating that the ammonia concentration will indirectly affect the ammonia consumption. When the ammonia consumption is increasing, the generator speed will also be higher, causing the tested power generation efficiency to fluctuate, resulting in the generator being unable to test the best power generation efficiency under a certain ammonia concentration and generator speed. In order to avoid the generator being unable to test the best power generation efficiency under a certain ammonia concentration and generator speed, we provide a power generation efficiency test system and method for an ammonia internal combustion generator set. Summary of the invention
[0003] The object of the present invention is to provide a system and method for testing the power generation efficiency of an ammonia internal combustion generator set to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned object, one of the objects of the present invention is to provide a power generation efficiency test system for an ammonia internal combustion generator set, comprising a calculation test unit, a power test unit, a data comparison unit, a data adjustment unit, and a time synchronization unit;
[0005] The calculation and testing unit is used to obtain the operating status data and historical data of the ammonia internal combustion generator set, calculate the power generation frequency, detect the ammonia concentration using a sensor and record the time, test the generator speed according to the calculated power generation frequency and historical data, and record the time point corresponding to the tested generator speed;
[0006] The power test unit is used to receive data from the calculation test unit, test the generator output power, calculate the ammonia consumption rate according to the historical data and the tested generator output power, and then test the power generation efficiency according to the tested generator speed, historical data and generator output power;
[0007] The data comparison unit is used to receive data from the calculation test unit, calculate the ammonia consumption and the corresponding time point, compare the calculated ammonia consumption with the set standard consumption, and determine whether the ammonia consumption of the generator is lower than the set standard consumption when the ammonia concentration and the generator speed are detected at the same time point;
[0008] The data adjustment unit is used to receive the data from the data comparison unit, and adjust the generator speed according to the data from the data comparison unit to optimize the power generation efficiency.
[0009] As a further improvement of the technical solution, the calculation test unit includes an acquisition calculation module and a rotation speed test module;
[0010] The acquisition and calculation module is used to obtain the operating status data and historical data of the ammonia internal combustion generator set, detect the concentration of ammonia introduced into the combustion chamber by using a gas sensor, collect the generator voltage waveform and cycle time by using an oscilloscope, and calculate the power generation frequency by using the cycle time;
[0011] The operating status data of the ammonia internal combustion generator set includes the output voltage of the generator and the output current of the generator;
[0012] The historical data includes the number of pole pairs of the generator, the calorific value of ammonia, torque, and gas flow rate of ammonia;
[0013] The speed test module is used to receive the power generation frequency calculated by the calculation module and the generator pole pair number in the historical data, test the generator speed using the calculated power generation frequency and the generator pole pair number, and record the corresponding speed time point.
[0014] As a further improvement of the technical solution, the speed test module implements the steps of testing the generator speed:
[0015] Collect and calculate the generation frequency Fd pl The generator speed is calculated based on the number of pole pairs p of the generator in the historical data. The calculated generator speed is the tested generator speed Cs. zs , the specific algorithm formula is:
[0016] Cs zs =120×Fd pl / p;
[0017] Among them, the tested generator speed Cs zs The unit is per minute, and 120 is a constant used to calculate the power generation frequency Fd pl Converted to generator speed per minute Cs zs factor, p is the number of pole pairs of the generator, and the number of pole pairs p = number of poles / 2.
[0018] As a further improvement of the technical solution, the power test unit includes a power consumption module and a test efficiency module;
[0019] The power consumption module is used to receive the operating status data and historical data of the ammonia internal combustion generator set from the acquisition calculation module, extract the output voltage and current of the generator, obtain the calorific value of ammonia from the historical data, use the output voltage and current to test the output power of the generator, and calculate the ammonia consumption rate according to the calorific value of ammonia and the tested output power;
[0020] The test efficiency module is used to receive the torque in the historical data in the acquisition calculation module, receive the generator speed tested in the speed test module and the generator output power tested in the power consumption module, and calculate the angular velocity according to the tested generator speed, and then use the calculated angular velocity, torque and tested generator output power to test the power generation efficiency, and record the efficiency time corresponding to the test power generation efficiency.
[0021] As a further improvement of the technical solution, the implementation steps of testing the power generation efficiency in the test efficiency module are as follows:
[0022] Step ①, obtain the calculated angular velocity ω, torque Zj and the tested generator output power SC gl , use the torque Zj and angular velocity ω to calculate the generator input power, and get the calculated generator input power Sr gl' , the specific algorithm formula is:
[0023] Sr gl' =Zj×ω;
[0024] The unit of torque Zj is Newton meter (Nm);
[0025] Step ②: Reuse the calculated generator input power Sr gl' The generator output power SC tested gl Calculate the power generation efficiency, and the calculated power generation efficiency is the tested power generation efficiency C xl , the specific algorithm formula is:
[0026]
[0027] As a further improvement of the technical solution, the data comparison unit includes a consumption comparison module and a concentration comparison module;
[0028] The consumption comparison module is used to receive the historical data of the acquisition calculation module and the detected ammonia concentration, and calculate the ammonia consumption, compare the calculated ammonia consumption with the set standard consumption, and ensure that the time point corresponding to the consumption, the speed time point and the detection time point are at the same time point;
[0029] The concentration comparison module is used to receive the consumption time point of the consumption comparison module and the efficiency time of the test efficiency module, and obtain the tested ammonia concentration and speed time point from the acquisition calculation module to ensure that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption and the power generation efficiency is optimal.
[0030] As a further improvement of the technical solution, the data adjustment unit includes an efficiency adjustment module and a power adjustment module;
[0031] The efficiency adjustment module is used to receive the comparison result of the consumption comparison module and adjust the generator speed according to the comparison result to optimize the power generation efficiency;
[0032] The power regulation module is used to receive the test power generation efficiency in the test efficiency module, and reduce or increase the power generation efficiency of the generator by adjusting the rotation speed.
[0033] As a further improvement of the technical solution, the same-time unit includes a test same-time comparison module and a power same-time comparison module;
[0034] The test time comparison module is used to receive the historical data in the acquisition calculation module and the generator speed tested, and ensure through comparison that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption;
[0035] The power-time comparison module is used to receive the test power generation efficiency of the test efficiency module, and ensures through comparison that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption.
[0036] The second object of the present invention is to provide a method for operating the ammonia internal combustion generator set power generation efficiency test system including any one of the above, comprising the following method steps:
[0037] S1, the speed calculation module is used to receive the number of generator pole pairs and the calculated power generation frequency in the historical data, and use the calculated power generation frequency and the number of generator pole pairs to test the generator speed;
[0038] S2, the consumption calculation module is used to receive the ammonia calorific value and gas flow rate in the historical data, receive the tested generator output power from the calculation module, and calculate the ammonia consumption rate;
[0039] S3, the test efficiency module is used to receive the generator speed in the speed calculation module and the ammonia consumption rate in the consumption calculation module, calculate the angular velocity according to the torque in the historical data and the calculated generator speed, test the power generation efficiency using the angular velocity, torque and the tested generator output power, and compare the consumption through the comparison judgment module;
[0040] S4. The consumption comparison module is used to receive the historical data of the calculation module, the ammonia consumption rate in the consumption calculation module and the generator speed in the speed calculation module, and compare the consumption to ensure that the time point corresponding to the consumption, the speed time point and the detection time point are at the same time point. The concentration comparison module ensures that they are at the same time point according to the consumption comparison module, and again ensures that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption.
[0041] Compared with the prior art, the present invention has the following beneficial effects:
[0042] 1. In the ammonia internal combustion generator set power generation efficiency test system and method, the test efficiency module is used to receive the torque in the historical data in the calculation module, receive the generator speed tested in the speed test module and the generator output power tested in the power consumption module, and calculate the angular velocity according to the tested generator speed, and then use the calculated angular velocity, torque and tested generator output power to test the power generation efficiency, test the power generation efficiency of the generator at each speed, and by testing the power generation efficiency at different speeds, it is possible to find out at which speed the generator has the best power generation efficiency, and accurately determine the optimal efficiency working point of the generator.
[0043] 2. In the ammonia internal combustion generator set power generation efficiency test system and method, the concentration comparison module is used to receive the consumption time point of the consumption comparison module and the efficiency time of the test efficiency module, and obtain the tested ammonia concentration and speed time point from the acquisition calculation module to ensure that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption and the power generation efficiency is optimal, which proves that under the conditions of certain ammonia concentration and generator speed, the utilization rate of ammonia is high, reducing unnecessary waste of ammonia. At the same time, the power generation efficiency tested at the same time point reaches the optimal level, indicating that the generator operates most efficiently under these conditions, which is convenient for maximizing output power and minimizing energy loss. The selected ammonia concentration and speed are the optimal operating conditions for the generator operation, which helps to operate the generator stably and reliably. BRIEF DESCRIPTION OF THE DRAWINGS
[0044] Figure 1 is an overall block diagram of the present invention;
[0045] Figure 2 A block diagram of a computing test unit of the present invention;
[0046] Figure 3 is a block diagram of a power test unit of the present invention;
[0047] Figure 4 This is a block diagram of the data comparison unit of the present invention.
[0048] Figure 5 is a block diagram of a data adjustment unit of the present invention,
[0049] Figure 6 It is a block diagram of the synchronous unit of the present invention.
[0050] The meaning of each number in the figure is:
[0051] 1. Calculation test unit; 11. Acquisition calculation module; 12. Speed test module;
[0052] 2. Power test unit; 21. Power consumption module; 22. Test efficiency module;
[0053] 3. Data comparison unit; 31. Consumption comparison module; 32. Concentration comparison module;
[0054] 4. Data adjustment unit; 41. Efficiency adjustment module; 42. Power adjustment module;
[0055] 5. Synchronous time unit; 51. Test synchronous time comparison module; 52. Power synchronous time comparison module. DETAILED DESCRIPTION
[0056] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0057] Example 1
[0058] See also Figure 1-Figure 6 As shown, one of the purposes of this embodiment is to provide an ammonia internal combustion generator set power generation efficiency test system, including a calculation test unit 1, a power test unit 2, a data comparison unit 3, a data adjustment unit 4, and a time synchronization unit 5;
[0059] The calculation and testing unit 1 is used to obtain the operating status data and historical data of the ammonia internal combustion generator set, calculate the power generation frequency, use the sensor to detect the ammonia concentration and record the time, test the generator speed according to the calculated power generation frequency and historical data, and record the time point corresponding to the tested generator speed; the power testing unit 2 is used to receive the data of the calculation and testing unit 1, test the generator output power, and calculate the ammonia consumption rate according to the historical data and the tested generator output power, and then test the power generation efficiency according to the tested generator speed, historical data and generator output power; the data comparison unit 3 is used to receive the data of the calculation and testing unit 1, calculate the ammonia consumption and the corresponding time point, compare the calculated ammonia consumption with the set standard consumption, and determine whether the ammonia consumption of the generator is lower than the set standard consumption when the ammonia concentration and generator speed are detected at the same time point; the data adjustment unit 4 is used to receive the data of the data comparison unit 3, adjust the generator speed according to the data of the data comparison unit 3, and optimize the power generation efficiency.
[0060] The following is a refinement of the above units, see Figure 2-Figure 6 ;
[0061] The calculation and testing unit 1 includes an acquisition and calculation module 11 and a rotation speed testing module 12;
[0062] The acquisition calculation module 11 is used to obtain the operating status data and historical data of the ammonia internal combustion generator set, use a gas sensor to detect the ammonia concentration introduced into the combustion chamber, ignite the ammonia through an electric spark, generate a high-temperature and high-pressure flame, move the piston downward, and then inhale a mixture of air and ammonia, and ignite the mixture again, thereby generating greater pressure and temperature, pushing the piston upward, converting the movement of the piston into mechanical energy through the crankshaft, and then using the mechanical energy to make the generator generate a rotation speed and generate electricity, and then collect the generator voltage waveform and cycle time through an oscilloscope, that is, the time interval from the voltage waveform from one point to the next same point (such as from the zero crossing point of a sine wave to the next zero crossing point) is the cycle time T, and the cycle time is used to calculate the power generation frequency;
[0063] The operating status data of the ammonia internal combustion generator set includes the output voltage of the generator and the output current of the generator;
[0064] The historical data includes the number of pole pairs of the generator, the calorific value of ammonia, torque, and gas flow rate of ammonia;
[0065] Steps to calculate the generation frequency:
[0066] Get the cycle time T and calculate the power generation frequency to get the calculated power generation frequency Fd pl , the specific algorithm formula is:
[0067] Fpl =1 / T;
[0068] Among them, 1 is a constant term, and the calculated generation frequency Fd pl The unit of is (Hertz / Hz), and the unit of cycle time T is second (s). This formula is used to calculate the power generation frequency, which is convenient for the subsequent speed calculation;
[0069] The speed test module 12 is used to receive the power generation frequency calculated by the calculation module 11 and the number of pole pairs of the generator in the historical data, and use the calculated power generation frequency and the number of pole pairs of the generator to test the speed of the generator, and record the corresponding speed time point at the same time;
[0070] Steps to test the generator speed:
[0071] Collect and calculate the generation frequency Fd pl The generator speed is calculated based on the number of pole pairs p of the generator in the historical data. The calculated generator speed is the tested generator speed Cs. zs , the specific algorithm formula is:
[0072] Cs zs =120×Fd pl / p;
[0073] Among them, the tested generator speed Cs zs The unit is per minute, and 120 is a constant used to calculate the power generation frequency Fd pl Converted to generator speed per minute Cs zs factor, p is the number of pole pairs of the generator, the number of pole pairs p = number of poles / 2, which is used to define the parameters of the generator structure.
[0074] The power test unit 2 includes a power consumption module 21 and a test efficiency module 22;
[0075] The power consumption module 21 is used to receive the operating status data and historical data of the ammonia internal combustion generator set from the calculation module 11, obtain the output voltage and the output current of the generator from the operating status data of the ammonia internal combustion generator set, and then obtain the calorific value of ammonia from the historical data, use the output voltage and the output current of the generator to test the output power of the generator, and then calculate the ammonia consumption rate according to the calorific value of ammonia and the tested generator output power;
[0076] Steps to test the generator output power:
[0077] Collect the output voltage V of the generator out and the generator output current I out And calculate the generator output power. The calculated generator output power is the tested generator output power SCgl , the specific algorithm formula is:
[0078] SC gl =V out ×I out ;
[0079] Among them, the tested generator output power SC gl The unit is kilowatt or megawatt, the output voltage of the generator is V out The unit is (volt / V), the output current of the generator I out The unit is (ampere / A). This formula is used to test the generator output power and facilitate the subsequent calculation of the ammonia consumption rate.
[0080] Principle of calculating ammonia consumption rate:
[0081] First, obtain the calorific value HV of ammonia and the output power SC of the generator to be tested gl And calculate the ammonia consumption rate to obtain the calculated ammonia consumption rate Aq xh , the specific algorithm formula is:
[0082] AHr xh =SC gl / HV;
[0083] The calorific value HV of ammonia is expressed in joules per kilogram (J / kg) or joules per cubic meter (J / m 3 ), calculated ammonia consumption rate A qxh The unit is kilograms per hour (kg / h) or grams per second (g / s).
[0084] The test efficiency module 22 is used to receive the torque in the historical data in the acquisition calculation module 11, receive the generator speed tested in the speed test module 12 and the generator output power tested in the power consumption module 21, and calculate the angular velocity according to the tested generator speed, and then use the calculated angular velocity, torque and tested generator output power to test the power generation efficiency, and record the efficiency time corresponding to the test power generation efficiency, and test the power generation efficiency of the generator at each speed. By testing the power generation efficiency at different speeds, it is possible to find out at which speed the generator has the highest efficiency, which helps to optimize the operating conditions of the generator and ensure that it operates at the most efficient working point;
[0085] Calculation principle of angular velocity:
[0086] Get the generator speed Cs of the test zs And calculate the angular velocity to obtain the calculated angular velocity ω. The specific algorithm formula is:
[0087] ω=2π×Cs zs / 60;
[0088] The unit of the calculated angular velocity ω is radians per second, 2 means that the radian of the central angle corresponding to one revolution is 2π, and 60 means the time unit conversion, that is, there are 60 seconds in one minute;
[0089] The implementation steps of testing the power generation efficiency in the test efficiency module 22 are as follows:
[0090] Step ①, obtain the calculated angular velocity ω, torque Zj and the tested generator output power SC gl , using the torque Zj and the calculated angular velocity ω to calculate the generator input power, the calculated generator input power Sr is obtained gl, , the specific algorithm formula is:
[0091] Sr gl, =Zj×ω;
[0092] The unit of torque Zj is Newton meter (Nm);
[0093] Step ②: Reuse the calculated generator input power Sr gl, The generator output power SC tested gl Calculate the power generation efficiency, and the calculated power generation efficiency is the tested power generation efficiency C xl , the specific algorithm formula is:
[0094]
[0095] Among them, this formula is used to test the power generation efficiency. Understanding the efficiency of the generator at different speeds can help optimize the use of fuel. By running at the optimal speed, fuel consumption can be reduced and the overall energy utilization efficiency can be improved.
[0096] The data comparison unit 3 includes a consumption comparison module 31 and a concentration comparison module 32;
[0097] The consumption comparison module 31 is used to receive the historical data of the calculation module (11) and the detected ammonia concentration, calculate the ammonia consumption, compare the calculated ammonia consumption with the set standard consumption, and ensure that the time point corresponding to the consumption, the speed time point and the detection time point are at the same time point;
[0098] The concentration comparison module 32 is used to receive the consumption time point of the consumption comparison module 31 and the efficiency time of the test efficiency module 22 and the tested power generation efficiency, and obtain the tested ammonia concentration and speed time point from the acquisition calculation module (11), to ensure that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption, and then use the tested power generation efficiency and the set optimal power generation efficiency range value to judge that the power generation efficiency is the optimal power generation efficiency;
[0099] Principle of calculating ammonia consumption:
[0100] Collect and detect the ammonia concentration Nd and the ammonia gas flow rate Qt ll And calculate the ammonia consumption to obtain the calculated ammonia consumption Q x , the specific algorithm formula is:
[0101] Q x =Nd×Qt ll ;
[0102] The unit of the detected ammonia concentration Nd is (kg / h), and the gas flow rate of ammonia Qt is ll The unit is (m 3 / h);
[0103] The specific comparisons include:
[0104] Case ①: When the calculated ammonia consumption is greater than the set standard consumption, it means that the ammonia consumption of the generator is high, and the ammonia flow rate should be appropriately reduced to reduce the ammonia consumption of the generator;
[0105] Case ②: When the calculated ammonia consumption is less than the set standard consumption, it means that the ammonia consumption of the generator is low, which means that when the detected ammonia concentration and the tested generator speed are determined at the same time point, the ammonia consumption of the generator is low;
[0106] Specific judgment situations include
[0107] Case 1: When the tested power generation efficiency exceeds the set optimal power generation efficiency range, it means that at the same time point, the tested power generation efficiency is too high or too low. Then the power generation efficiency is optimized by adjusting the speed to reduce or increase the power generation efficiency of the generator.
[0108] Case 2: When the tested power generation efficiency is within the set optimal power generation efficiency range, it means that when the tested generator speed is determined at the same time point, the tested power generation efficiency is the optimal power generation efficiency;
[0109] The data adjustment unit 4 includes an efficiency adjustment module 41 and a power adjustment module 42;
[0110] The efficiency adjustment module 41 is used to receive the comparison result of the consumption comparison module 31, and adjust the generator speed according to the comparison result to optimize the power generation efficiency;
[0111] The power regulating module 42 is used to receive the test power generation efficiency from the test efficiency module 22 and reduce or increase the power generation efficiency of the generator by adjusting the rotation speed.
[0112] The simultaneous unit 5 includes a test simultaneous comparison module 51 and a power simultaneous comparison module 52;
[0113] The test time comparison module 51 is used to receive the historical data in the acquisition calculation module (11) and the generator speed tested, and ensure through comparison that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption;
[0114] The power-time comparison module 52 is used to receive the test power generation efficiency of the test efficiency module 22, and ensures through comparison that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption.
[0115] The second object of the present invention is to provide a method for operating the above-mentioned ammonia internal combustion generator set power generation efficiency test system, comprising the following method steps:
[0116] S1, the speed calculation module is used to receive the generator pole pair number and the calculated power generation frequency in the historical data, and use the calculated power generation frequency and the generator pole pair number to test the generator speed;
[0117] S2, the consumption calculation module is used to receive the ammonia calorific value and gas flow rate in the historical data, receive the tested generator output power from the calculation module, and calculate the ammonia consumption rate;
[0118] S3, the test efficiency module is used to receive the generator speed in the speed calculation module and the ammonia consumption rate in the consumption calculation module, calculate the angular velocity according to the torque in the historical data and the calculated generator speed, test the power generation efficiency using the angular velocity, torque and the tested generator output power, and compare the consumption through the comparison judgment module;
[0119] S4. The consumption comparison module is used to receive the historical data of the calculation module, the ammonia consumption rate in the consumption calculation module and the generator speed in the speed calculation module, and compare the consumption to ensure that the time point corresponding to the consumption, the speed time point and the detection time point are at the same time point. The concentration comparison module ensures that they are at the same time point according to the consumption comparison module, and again ensures that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption.
[0120] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. An ammonia internal combustion generator set power generation efficiency test system, characterized by: It includes a calculation test unit (1), a power test unit (2), a data comparison unit (3), a data adjustment unit (4), and a time synchronization unit (5); The calculation and testing unit (1) is used to obtain the operating status data and historical data of the ammonia internal combustion generator set, calculate the power generation frequency, detect the ammonia concentration using a sensor and record the time, test the generator speed according to the calculated power generation frequency and historical data, and record the time point corresponding to the tested generator speed; The power test unit (2) is used to receive data from the calculation test unit (1), test the generator output power, calculate the ammonia consumption rate based on the historical data and the tested generator output power, and then test the power generation efficiency based on the tested generator speed, historical data and generator output power; The data comparison unit (3) is used to receive data from the calculation test unit (1), calculate the ammonia consumption and the corresponding time point, compare the calculated ammonia consumption with the set standard consumption, and determine whether the ammonia consumption of the generator is lower than the set standard consumption when the ammonia concentration and the generator speed are detected at the same time point; The data adjustment unit (4) is used to receive data from the data comparison unit (3), and to adjust the generator speed according to the data from the data comparison unit (3) to optimize the power generation efficiency.
2. The ammonia internal combustion generator set power generation efficiency test system according to claim 1, characterized in that: The calculation test unit (1) comprises an acquisition calculation module (11) and a rotation speed test module (12); The acquisition and calculation module (11) is used to acquire the operating status data and historical data of the ammonia internal combustion generator set, detect the concentration of ammonia introduced into the combustion chamber by using a gas sensor, collect the generator voltage waveform and cycle time by using an oscilloscope, and calculate the power generation frequency by using the cycle time; The operating status data of the ammonia internal combustion generator set includes the output voltage of the generator and the output current of the generator; The historical data includes the number of pole pairs of the generator, the calorific value of ammonia, torque, and gas flow rate of ammonia; The rotation speed test module (12) is used to receive the power generation frequency calculated by the acquisition calculation module (11) and the number of generator pole pairs in historical data, test the generator rotation speed using the calculated power generation frequency and the number of generator pole pairs, and simultaneously record the corresponding rotation speed time point.
3. The ammonia internal combustion generator set power generation efficiency test system according to claim 2, characterized in that: The speed testing module (12) implements the steps of testing the speed of the generator: Collect and calculate the generation frequency Fd pl The generator speed is calculated based on the number of pole pairs p of the generator in the historical data. The calculated generator speed is the tested generator speed Cs. zs , the specific algorithm formula is: Cs zs =120×Fd pl / p; Among them, the tested generator speed Cs zs The unit is per minute, and 120 is a constant used to calculate the power generation frequency Fd pl Converted to generator speed per minute Cs zs factor, p is the number of pole pairs of the generator, and the number of pole pairs p = number of poles / 2.
4. The ammonia internal combustion generator set power generation efficiency test system according to claim 2, characterized in that: The power testing unit (2) comprises a power consumption module (21) and a testing efficiency module (22); The power consumption module (21) is used to receive the operating status data and historical data of the ammonia internal combustion generator set obtained by the calculation module (11), extract the output voltage and current of the generator, obtain the calorific value of ammonia from the historical data, test the output power of the generator using the output voltage and current, and calculate the ammonia consumption rate according to the calorific value of ammonia and the tested output power; The test efficiency module (22) is used to receive the torque in the historical data in the acquisition calculation module (11), receive the generator speed tested in the speed test module (12) and the generator output power tested in the power consumption module (21), calculate the angular velocity according to the tested generator speed, and then use the calculated angular velocity, torque and tested generator output power to test the power generation efficiency, and record the efficiency time corresponding to the tested power generation efficiency.
5. The ammonia internal combustion generator set power generation efficiency test system according to claim 4, characterized in that: The steps for implementing the test of power generation efficiency in the test efficiency module (22) are as follows: Step ①, obtain the calculated angular velocity ω, torque Zj and the tested generator output power SC gl , use the torque Zj and angular velocity ω to calculate the generator input power, and get the calculated generator input power Sr gl’ , the specific algorithm formula is: Sr gl, =Zj×ω; The unit of torque Zj is Newton meter (Nm); Step ②: Reuse the calculated generator input power Sr gl, The generator output power SC tested gl Calculate the power generation efficiency, and the calculated power generation efficiency is the tested power generation efficiency C xl , the specific algorithm formula is:
6. The ammonia internal combustion generator set power generation efficiency test system according to claim 4, characterized in that: The data comparison unit (3) comprises a consumption comparison module (31) and a concentration comparison module (32); The consumption comparison module (31) is used to receive the historical data obtained by the calculation module (11) and the detected ammonia concentration, calculate the ammonia consumption, compare the calculated ammonia consumption with the set standard consumption, and ensure that the time point corresponding to the consumption, the speed time point and the detection time point are at the same time point; The concentration comparison module (32) is used to receive the consumption time point of the consumption comparison module (31) and the efficiency time of the test efficiency module (22), and obtain the tested ammonia concentration and speed time point from the acquisition calculation module (11), so as to ensure that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption and the power generation efficiency is optimal.
7. The ammonia internal combustion generator set power generation efficiency test system according to claim 6, characterized in that: The data adjustment unit (4) comprises an efficiency adjustment module (41) and a power adjustment module (42); The efficiency adjustment module (41) is used to receive the comparison result of the consumption comparison module (31), and adjust the generator speed according to the comparison result to optimize the power generation efficiency; The power adjustment module (42) is used to receive the test power generation efficiency in the test efficiency module (22) and to reduce or increase the power generation efficiency of the generator by adjusting the rotation speed.
8. The ammonia internal combustion generator set power generation efficiency test system according to claim 7, characterized in that: The synchronization unit (5) comprises a test synchronization comparison module (51) and a power synchronization comparison module (52); The test time comparison module (51) is used to receive the historical data in the acquisition calculation module (11) and the generator speed tested, and ensure through comparison that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption; The power-time comparison module (52) is used to receive the test power generation efficiency of the test efficiency module (22), and ensures through comparison that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption.
9. A method for operating the power generation efficiency test system of an ammonia internal combustion generator set according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: S1, the speed calculation module is used to receive the number of generator pole pairs and the calculated power generation frequency in the historical data, and use the calculated power generation frequency and the number of generator pole pairs to test the generator speed; S2, the consumption calculation module is used to receive the ammonia calorific value and gas flow rate in the historical data, receive the tested generator output power from the calculation module, and calculate the ammonia consumption rate; S3, the test efficiency module is used to receive the generator speed in the speed calculation module and the ammonia consumption rate in the consumption calculation module, calculate the angular velocity according to the torque in the historical data and the calculated generator speed, test the power generation efficiency using the angular velocity, torque and the tested generator output power, and compare the consumption through the comparison judgment module; S4. The consumption comparison module is used to receive the historical data of the calculation module, the ammonia consumption rate in the consumption calculation module and the generator speed in the speed calculation module, and compare the consumption to ensure that the time point corresponding to the consumption, the speed time point and the detection time point are at the same time point. The concentration comparison module ensures that they are at the same time point according to the consumption comparison module, and again ensures that when the ammonia concentration is detected and the generator speed is tested at the same time point, the ammonia consumption of the generator is lower than the set standard consumption.