living room lounge chairs,Living Room Chairs,living room half recliner chairs Guangzhou LoPhiDa Co.Ltd , https://www.guangdongwidinlsa.com
Application of PSCAD in power turbine energy converter
Written by Manitoba HVDC Research Centre, Farid Mosallat
Power hydropower stations are one of the emerging technologies in the alternative energy power generation industry. Dynamic hydropower stations use underwater turbine generator sets to convert the energy of flowing water into electrical energy. The generated electrical energy can be supplied to the island load or injected into the public power grid.
Power turbines can be deployed in tidal or high-flow rivers. In river applications, the power turbine is placed along the appropriate river bank, because the natural terrain in some places restricts the water flow, which causes the water flow speed. The installation cost and deployment time required for a power turbine is relatively small because it does not require major infrastructure, such as a dam or factory building. Therefore, the dynamic hydropower station facilities are relatively cheap, and will not cause harm to the environment.
The output power of the generator is transmitted to the coast through the cable. Considering the uncontrollability of tide changes, the energy interface unit
It is often necessary to adjust the voltage and frequency at the load. Such problems are often solved using power electronics-based methods.
The management of water flow energy is similar to the conversion of wind energy into electricity. However, the water density is more than 800 times that of the atmosphere, which leads to a huge difference between the power density of water flow and wind power. For example: the power density of fast water flow is at most 4 meters per second, which is equivalent to the speed of a hurricane. In addition, changes in water flow are more stable and more predictable than wind speed.
To study the feasibility and cost-effectiveness of this technology in Canadian rivers, a turbine dynamics research platform was built. Manitoba HVDC Research Centre, sponsored by Manitoba Hydro, became a key member of this pioneering research, and some NSERC Research Chairs experts in the simulation of alternative energy and power systems at the University of Manitoba also participated in the study.
The power interface of the power turbine platform was designed and built in the power laboratory of the Manitoba HVDC Research Centre. This power supply interface consists of two voltage source converters (VSCs), which change the output variable of the generator and convert it to a controllable voltage of 60 Hz. PSCAD / EMTDC is an irreplaceable simulation tool in the power interface design stage, which can be used to measure the size of components and verify control and protection routines.
The device can not only provide a fixed voltage and frequency to independent loads, but also inject electrical energy into the public power grid. Appropriate control and protection measures have been added to the design of the installation, and Manitoba Hydro has also considered the issue of distributed generation interconnection.
Power turbines have good application prospects in many remote areas with high-speed rivers, because these remote areas cannot be connected to the grid, and currently they can only be powered by fossil fuel-driven generators. The application of kinetic hydropower stations in this area is the main direction of this ongoing pioneering research project. The results obtained in the course of the project help to evaluate the application of dynamic hydropower stations in rivers. This technology can be used as a green resource for the power industry after it is commercialized, and it is also affordable in remote areas in Canada and around the world.