Simulation testing method based on permanent magnetic wind driven generator electromagnetic model
The invention relates to a simulation testing method based on a permanent magnetic wind driven generator electromagnetic model. The method is implemented with a large permanent magnetic direct-driving wind-driven generator set simulation testing system and a commissioning test controller. The method comprises the following steps: 1) according to the design paper, manufacturing the permanent magnetic wind driven generator electromagnetic model in proportion; 2) installing the manufactured electromagnetic model in the simulation testing system, and connecting the electromagnetic model between a speed reducer and a simulation artificial load or a grid-connected inverter; 3) using the simulation testing system to test the electromagnetic model, and outputting the test results to the commissioning test controller; 4) judging whether the manufactured electromagnetic model meets the design requirement according to the test results by the commissioning test controller, if yes, ending the test, and if no, executing the step 5); 5) adjusting the electromagnetic model, and returning the step 2). Compared to the prior art, the simulation testing method has the advantages that the research and development speed of the new product can be increased, and the research and development cost is lowered. 1. Based on permanent magnet wind-driven generator electromagnetic model simulation test method, this method, through large-scale permanent magnet direct-drive wind power generation unit simulation test system, the simulation test system comprises a variable frequency speed regulator, the power of the drive motor, testing controller, speed reducer, the analog load and grid inverter, characterized in that the method comprises the following steps: 1) according to the design drawings, making narrow according to the proportion electromagnetic model permanent magnet wind power generator; 2) will produce good electromagnetic model in the simulation test system, is connected to the speed reducer and a simulated load between or grid-connected inverter; 3) the electromagnetic system through a simulation test model for testing; 4) test controller according to the testing results to judge whether the electromagnetic model to meet design requirements, if it is, then ending the test, if not, executing step 5); 5) adjusting electromagnetic model, return to step 2). 2. Based on permanent magnet wind-driven generator electromagnetic model simulation test method according to Claim 1, characterized in that the permanent magnet wind power generator electromagnetic model to the effective length of the rotor shaft of the permanent magnet to be true to the rotor shaft of the wind-driven generator l/n effective length. 3. Based on permanent magnet wind-driven generator electromagnetic model simulation test method according to Claim 2, characterized in that said n to 5-10. 4. Based on permanent magnet wind-driven generator electromagnetic model simulation test method according to Claim 1, characterized in that the step 3) to the electromagnetic model testing includes dynamic electromagnetic parameter and limit the simulation test of the state of the simulation test of the magnetic stability. 5. Based on permanent magnet wind-driven generator electromagnetic model simulation test method according to Claim 4, characterized in that said dynamic electromagnetic parameters include the power under different rotational speed of the generator, the harmonic frequency, intensity, vibration and the noise intensity. 6. Based on permanent magnet wind-driven generator electromagnetic model simulation test method according to Claim 5, characterized in that said electromagnetic dynamic parameter simulation test specifically comprises: 101) is connected with the electromagnetic model between the speed reducer and a simulated load, to start the simulation test system for testing electromagnetic model; 102) testing controller recording electromagnetic model runtime electromagnetic dynamic parameter; 103) test controller according to the harmonic frequency and strength, vibration and noise intensity judging electromagnetic model in the design of the magnetic circuit and magnet is reasonable, according to the different rotational speed of the power generation power characteristic curve, in judging electromagnetic model whether dynamic magnetic energy product of the magnetic steel to meet design requirements, and display the judged result. 7. Based on permanent magnet wind-driven generator electromagnetic model simulation test method according to Claim 4, characterized in that the magnetic stability limit state of the simulation test of the specifically comprises: 201) is connected with the electromagnetic model between the speed reducer and grid inverter, to start the simulation test system for testing electromagnetic model; 202) simulation test system control electromagnetic model operation in normal working state, adjust the rotational speed, a power characteristic curve is obtained; 203) simulation test system control electromagnetic model work of the generator under the state of the maximum permissible temperature, adjust the rotational speed, the power limit state is obtained the characteristic curve b; 204) electromagnetic model to stop running, temperature to return to the normal temperature state, electromagnetic models is started again, the power characteristic curve c is obtained; 205) test controller according to the obtained power characteristic curve a, b, c, will lose judge whether electromagnetic model.