The real-time simulation test of the wind turbine in Xinjiang was completed on March 3, which greatly improved the accuracy of the simulation test of the wind turbine in Xinjiang.
“The semi physical real-time simulation platform of fan controller built this time is to replace the control part of the fan power generation simulation system with the fan controller actually used on site, so as to avoid the disadvantages of inconsistency between the full digital simulation and the actual control parameters.” Yu Yongjun, the person in charge of the test, said.
Through the semi physical real-time simulation platform of fan controller, it can not only carry out various performance verification tests specified in national standards at low cost, low risk and high efficiency, but also evaluate and predict the risk of new energy stations, so as to prevent potential safety hazards.
Power system test is an important means to obtain the performance and response characteristics of power grid equipment. According to the requirements of national standards, power system equipment needs to carry out power system test within the necessary nodes and cycles, so as to ensure the timely detection of equipment operation problems and ensure the safety of power system. However, many field tests are costly and time-consuming, and there are potential risks affecting the safe operation of the power grid.
Taking the wind turbine test as an example, all newly-built and in operation wind turbines need to obtain the voltage ride through characteristics and impedance characteristics of new energy stations through various tests such as high-voltage ride through, low-voltage ride through and impedance characteristics. However, in the process of on-site physical test, external variables affecting the operation state of the power grid such as artificial short circuit and harmonic must be added, It takes up to one month to carry out a test, so carrying out all digital online simulation test has become a more common way in the industry. However, for a long time, the fan control logic and algorithm have always been the core business secrets of manufacturers. In the process of full digital simulation, the real state of fan control cannot be completely restored, which inevitably leads to poor reliability and accuracy of results.
With the continuous upgrading of domestic ADPSS real-time simulation devices and the continuous promotion of other real-time simulation platforms, all digital simulation is gradually moving towards semi physical hardware simulation technology, which is also known as semi physical simulation. It replaces some models that are difficult to restore logic and algorithm in traditional all digital simulation with physical objects, so as to improve the accuracy of simulation results.
In February, Suzhou Electrical Apparatus Science Academy Co.Ltd(300215) technical experts Yu Yongjun, Qi Xiaoxiao and Wang Lichao, key test personnel, communicated and assisted with Chinese Suzhou Electrical Apparatus Science Academy Co.Ltd(300215) and Hewang fan controller manufacturers for many times, obtained model building data, equipment commissioning and other information, and completed the simulation test environment of fan high voltage ride through and low voltage ride through, The first semi physical real-time simulation test of fan controller was successfully completed on March 3.
It is reported that in the later stage, on this basis, the test team will try to connect the fan controller to the regional power grid and the electromechanical electromagnetic hybrid simulation of multiple stations in the large power grid, so as to provide technical guarantee for the safe operation of large-scale new energy after being connected to the power grid.
