A Method for Determining the Regulating Capacity of Cross-regional Hydropower-wind power Direct Current Transmission Hydropower Generating Units
A technology of hydroelectric unit and adjustment capability, which is applied in the direction of power transmission AC network, wind power generation, single-network parallel feeding arrangement, etc., and can solve the problems of lack of research on the adjustment performance of hydroelectric unit
Inactive Publication Date: 2019-01-04
STATE GRID HUNAN ELECTRIC POWER +2
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At present, most of the research in the industry is focused on the feasibility study of hydropower compensation for wind power, wind power-hydropower dispatching operation, and optimization of the PID parameters of the water turbine regulation system. Lack of research on conditioning performance
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[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0015] Improving the consumption of intermittent and fluctuating new energy in large-scale wind power plants has become one of the important issues facing the power grid at present and in the future. Hydropower units have the characteristics of fast startup and shutdown, and quick load adjustment. They have potential advantages in stabilizing...
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The embodiment of that present invention provides a method for determining the regulating capacity of cross-regional hydropower-wind power direct current transmission hydropower generating units. Themethod comprises the following steps: according to the wind power curve, the wide-area governor calculates the power instruction; the AGC of the hydropower plant receives the power instruction to generate the control instruction, and sends the control instruction to the local control unit LCU; the AGC of the hydropower plant generates the control instruction. According to the control command, thelocal control unit LCU sends the speed control command to the speed governor of the corresponding hydropower unit, realizes the power regulation of the hydropower unit, and determines the regulating capacity of the hydropower unit. The invention can absorb the power fluctuation of the wind turbine generator system through the hydroelectric generator system, and can be used for large-scale new energy consumption across regions, and wind power-hydropower combined operation and provides practical basis and theoretical support.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of electric energy transmission, and in particular to a method for determining the adjustment capability of a cross-regional hydropower-wind power DC transmission hydroelectric unit. Background technique [0002] With large-scale wind power plants and photovoltaic power plants put into operation, improving the consumption of intermittent and fluctuating new energy has become one of the important issues facing the power grid at present and in the future. Hydropower units have the characteristics of fast startup and shutdown, and rapid load adjustment. They are often used for peak regulation and frequency regulation in the system. They have potential advantages in stabilizing power fluctuations brought by new energy sources and improving the ability to absorb large-scale new energy sources. At present, most of the research in the industry is focused on the feasibility study of hydropo...
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Login to View More IPC IPC(8): H02J3/46H02J3/36
CPCH02J3/36H02J3/46Y02E10/76Y02E60/60
Inventor 寇攀高吴长利宋军英王辉斌唐卫平
Owner STATE GRID HUNAN ELECTRIC POWER