Control method and device for guaranteeing stable operation of power grid and related equipment
A stable operation and control method technology, applied in the direction of circuit devices, single-network parallel feeding arrangements, electrical components, etc., can solve problems such as the inability to adapt to the grid-connected and isolated-grid operation of the guaranteed partition grid, and formulate methods to achieve safe and stable operation Effects of Risk Questions
Pending Publication Date: 2022-07-15
CHINA SOUTHERN POWER GRID COMPANY
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Problems solved by technology
[0004] However, there is currently no method for formulating a stable control strategy for the grid-connected and isolated-grid operation of the guaranteed sub-regional grid, and the conventional security and stability control strategy cannot adapt to the situation where the guaranteed sub-regional grid is connected to the isolated grid.
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[0051] 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.
[0052] The following describes the control method for ensuring the stable operation of the power grid at the bottom provided by the embodiments of the present application. see figure 1 , the control method for ensuring the stable operation of the bottom power grid provided by the embodiment of the present application may include the following steps:
[0053] In step S101, the electricity demand of the guaranteed subarea is obtained, and...
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The invention discloses a control method and device for stable operation of a guaranteed power grid and related equipment, and the method comprises the steps: obtaining a power demand of a guaranteed subarea, and determining an operation mode of the guaranteed power grid operating in the guaranteed subarea based on the power demand; based on the operation mode, carrying out risk scanning on the fault condition of the guaranteed power grid to obtain a risk scanning result; based on the risk scanning result, a stability control strategy is determined, and the stability control strategy comprises power flow transfer information and generator tripping information; whether the operation mode can meet the stability control strategy or not is judged, if not, the operation mode of the guaranteed power grid is determined again based on the stability control strategy, and the step of conducting risk scanning on the fault condition of the guaranteed power grid based on the operation mode is executed again. According to the method, the system characteristics of the guaranteed subarea power grid during isolated grid operation are combined, various fault risks are comprehensively considered, the stability control strategy is formulated, and the problem of safe and stable operation risks after the guaranteed subarea power grid is converted into isolated grid operation after networking is solved.
Description
technical field [0001] The present application relates to the technical field of power security, and more particularly, to a control method, device and related equipment for ensuring stable operation of a power grid at the bottom. Background technique [0002] Power grid security and stability control refers to a control method that restores the system to a normal operating state by implementing various emergency control measures when an emergency occurs in the power system. The safe and stable operation of the power system plays a vital role in the operation of the power grid. According to the requirements of the "Guidelines for the Safety and Stability of Power Systems", the power system should meet the N-1 stability when encountering a fault, including static stability and transient stability. The stability control strategy of the power system is a control method that uses the power system security and stability control technology for more serious faults (such as N-2 or e...
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IPC IPC(8): H02J3/00H02J3/06H02J3/14H02J3/38H02J3/48
CPCH02J3/001H02J3/06H02J3/144H02J3/388H02J3/48H02J2203/20
Inventor 林峰梅勇郭恒道常东旭朱益华
Owner CHINA SOUTHERN POWER GRID COMPANY