A power system small disturbance stable optimal correction control system and method
A technology with small disturbance stability and correction control, applied in electrical components, circuit devices, AC network circuits, etc., to achieve the effect of reducing work intensity and pressure, improving safety and stability, and making correction and control simple and easy.
Active Publication Date: 2016-08-17
GUANGXI POWER GRID CORP +1
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Problems solved by technology
[0005] The present invention aims to solve the problem of whether the existing power system can return to a stable state after a period of time after being disturbed, and provides a small disturbance stable optimal correction control system and method based on BPA and SSSC-OPF in the power system. The method After the power system is subjected to disturbances that may destabilize the system, the system can be restored to stability by optimally correcting the control variables of the power system, so that the system is always in a stable grid operation mode with small disturbances to ensure safe, stable and reliable operation of the power grid
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[0086] Embodiment: A power system small disturbance stability optimal correction control method based on BPA and SSSC-OPF, refer to figure 2 As shown, the steps are as follows:
[0087] Step 1: Provide the original data report in BPA power flow format and the original data report in BPA stable format for the operating mode of the power system to be calculated;
[0088] Step 2, using BPA power system calculation and analysis software to perform BPA power flow calculation on the data in the BPA power flow format original data report;
[0089] Step 3, based on the BPA power flow calculation results and the BPA stable format original data report given in step 1, carry out BPA small disturbance stable calculation: after selecting the above two files, perform linearization, select the corresponding eigenvalue calculation method and set the corresponding parameters, Stabilize control files and perform eigenvalue calculations;
[0090] Step 4: By checking the small disturbance stab...
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A small-disturbance stable optimal correction control system for a power system uses a data management module, an interface management module, a strategy analysis module and a small-disturbance stable optimal correction control module to perform BPA power flow calculations on BPA format raw power flow data and stable raw data, and select Small-disturbance stability calculation method and set the small-disturbance stability calculation control file, perform small-disturbance stability calculation, judge whether the real part of the eigenvalue is greater than 0 or the stability margin is insufficient, if so, use the data interface module to analyze the original data, and start the small-disturbance stability optimization The optimal correction calculation program generates correction control data, updates BPA power flow data according to the correction control data, calculates BPA power flow with new data, calculates BPA small disturbance stability with new data, and outputs the results. The invention can make the small-disturbance stable correction control of the power grid simple and easy, shorten the work flow and formulation time, reduce the work intensity and pressure of operating personnel, and comprehensively improve the safety and stability of the power grid operation.
Description
technical field [0001] The invention relates to the field of small-disturbance stability calculation and optimization of power systems, in particular to a power system small-disturbance stable operation correction control system and optimization method based on BPA and small-disturbance stability constraints optimal power flow. Background technique [0002] Modern power systems are developing toward large, even ultra-large, interconnected power systems. Power system interconnection has many advantages, but it is also prone to complex stability problems. Due to the impact of ecological, environmental, public and other factors, the construction of power plants and power grids is restricted. At the same time, due to the yearly increase in load demand and the pursuit of operating efficiency and benefits by power companies, the continuous increase in the transmission power of transmission lines will make the operating conditions of the power system more tense, and the power syst...
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IPC IPC(8): H02J3/00
Inventor 邓秋荃阳育德孙艳李雨李凌覃秀君王德付刘文泰
Owner GUANGXI POWER GRID CORP