A Frequency Security Emergency Coordinated Optimization Control Method Based on Comprehensive Multi-category Measures
A technique for coordinating optimization and control methods, applied in the direction of reducing/preventing power oscillations, etc.
Active Publication Date: 2021-07-13
NARI TECH CO LTD +1
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[0004] In order to solve the above technical problems, the present invention provides a frequency security emergency coordination optimization control method that integrates multiple measures, solves the problem of coordination and cooperation of multiple types of measures, and adapts to the hierarchical and lean modern power grid frequency control requirements
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[0038] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0039] Such as figure 1 As shown, the frequency safety emergency coordination optimization control method of the comprehensive multi-type measures of the present invention comprises the following steps:
[0040] Step 1. Input grid information, which includes grid operation mode information, electromechanical transient simulation data, expected faults, frequency safety binary table, transient and steady-state frequency safety boundaries, and information on candidate safety and stability control measures. specific,
[0041] The frequency safety binary table is the information describing the frequency safety requirements of the transient process. It is a binary table composed of a given frequency...
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The invention discloses a frequency safety emergency coordination and optimization control method that integrates multiple measures, including: (1) input power grid information, including power grid operation mode information, electromechanical transient simulation data, expected faults, frequency safety binary table, temporary (2) formulate priority control schemes for different types of control measures; (3) select different types of control measures after the accident according to the amount of unbalanced power caused by the expected fault Priority control plan; (4) The control measures of the same priority are sorted from high to low according to the sensitivity index of the improvement effect on the system frequency margin; (5) Calculate the preliminary control strategy under the expected failure; (6) The control cost is optimized for the preliminary strategy to form the final control strategy. The invention solves the problem of coordination and cooperation of multiple types of measures, and adapts to the frequency control requirements of the hierarchical and lean modern power grid.
Description
technical field [0001] The invention relates to a frequency security emergency coordination and optimization control method that integrates multiple measures, and belongs to the technical field of electric power system automation. Background technique [0002] The grid frequency is not only related to the safe and stable operation of the system, but also one of the important indicators to measure the power quality. Nowadays, frequency security has received more attention. On the one hand, in the face of new trends in power structure and grid structure changes, frequency security is facing more severe challenges. The increase in the proportion of new energy power generation makes it more difficult to flexibly control frequency. The expansion of UHV / EHVDC cross-regional power transmission has worsened the severity of frequency security issues; on the other hand, some electrical equipment has put forward stricter requirements for power supply quality including frequency charact...
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IPC IPC(8): H02J3/24
CPCH02J3/24
Inventor 常海军牛拴保刘福锁柯贤波李威霍超石渠魏平王超
Owner NARI TECH CO LTD