Coordinated control system for multiple offshore wind plants
A technology for coordinating control systems and wind farms, applied to electrical components, circuit devices, AC network circuits, etc., can solve problems such as different dynamic response behaviors, different degrees of influence on the stability characteristics of sending channels, and limited sending capabilities of AC channels
Active Publication Date: 2022-06-24
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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Problems solved by technology
When multiple offshore wind farms collectively transmit power through one AC channel for long-distance transmission, the transmission capacity of the AC channel is limited, and serious transient stability problems are prone to occur
In addition, different offshore wind farms in the same area often use equipment from different manufacturers, and even the same offshore wind farm uses equipment from different manufacturers. Due to the differences in the control characteristics of wind turbine inverters, it is easy to cause each inverter after the power grid is disturbed. The dynamic response behavior of the unit is different, and its influence on the stability characteristics of the sending channel is different
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[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0045]At present, it is difficult to coordinate and control multiple offshore wind farms that are sent out in a centralized manner. In order to ensure the stability of the power grid system, the output of each offshore wind farm is generally pre-arranged by means of pre-control, or the control sequence of each offshore wind farm is pre-arranged for each offshore wind farm by a simple stability control method. The units in the offshore wi...
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The invention provides a multi-offshore-wind-plant coordinated control system, which can formulate a removal strategy based on the active power output of each wind generator set of each offshore wind plant in real time, and controls the operation state of each wind generator set of each offshore wind plant based on the formulated removal strategy after the fault is cleared. Normal operation of the multiple offshore wind power plants can be maintained, and it can be effectively guaranteed that the total unit power of all the offshore wind power plants reaches the optimal value after faults are removed.
Description
technical field [0001] The present application relates to the technical field of offshore wind power resource control, and in particular, to a coordinated control system for multiple offshore wind farms. Background technique [0002] In recent years, with the large-scale concentrated and rapid development of offshore wind power resources along the eastern coast, the construction progress of the transmission channel of the onshore grid connection point does not match the development progress of offshore wind power resources, resulting in the emergence of multiple offshore wind farms in the same area. A scene where an AC channel transmits electricity over a long distance. When multiple offshore wind farms transmit power over a long distance through an AC channel, the transmission capacity of the AC channel is limited, and serious transient stability problems are prone to occur. In addition, different offshore wind farm units in the same area often use different manufacturers'...
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Login to View More IPC IPC(8): H02J3/48H02J3/38
CPCH02J3/48H02J3/381H02J2300/28Y02E10/76
Inventor 朱益华郭琦李成翔罗超曾冠铭胡云常东旭武明康林勇刘新苗余浩陈鸿琳彭穗
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD