Optimization method for comprehensive automation system VQC of transformer station

A technology of comprehensive automation and optimization method, which is applied in the optimization field of VQC of substation comprehensive automation system, can solve the problems of system voltage influence, voltage pass rate "statistical index decline, etc., and achieve the effect of solving repeated adjustment and fluctuation of voltage

Active Publication Date: 2009-12-30
SHANGHAI ELECTRIC POWER COMM +1
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Problems solved by technology

Obviously, voltage imbalance will lead to a decline in the statistical index of "voltage qualification rate"
[0010] According to the typical 17-zone control method, we can see that in the 8th zone, the command of cutting the capacitor and raising the tap is carried out, but it is precisely because of the command of t

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  • Optimization method for comprehensive automation system VQC of transformer station
  • Optimization method for comprehensive automation system VQC of transformer station

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing.

[0023] see figure 1 with figure 2 , the figure shows a VQC optimization method of the substation integrated automation system of the present invention, which is used for the on-load voltage regulation of the main transformer in the VQC control mode of the substation integrated automation system, the method of comprehensive capacitor control and the on-load regulation of the main transformer. Optimize the control mode of automatic voltage control and capacitor deactivation. The main transformer on-load voltage regulation and capacitor comprehensive control mode is to control the on-load voltage regulation transformer taps and capacitors. The main transformer on-load voltage regulation automatic control and capacitor deactivation The control method is to control the tap of the on-load tap changer. The two control methods are controlled through the control strategy of the se...

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Abstract

The invention relates an optimization method for a comprehensive automation system VQC of a transformer station, which optimizes a mode of main transformer on-load voltage regulation and capacitor comprehensive control and a control mode of main transformer on-load voltage regulation automatic control and capacitor disuse in control modes of the comprehensive automation system VQC of the transformer station. In the mode of the main transformer on-load voltage regulation and capacitor comprehensive control, a control strategy on the premise of priority control of voltage removes a tap lifting instruction of an eighth region to prevent the repeated shock phenomenon of a first region and the eighth region during control and ensure the voltage is not offset; and in the control mode of the main transformer on-load voltage regulation automatic control and the capacitor disuse, a voltage region is divided into an upper region, a middle region and a lower region, the middle region is recognized as a qualified region when the voltage falls on the middle region, and the regulation is no more performed so as to eliminate the inter-region phenomenon and solve the problems of repeated regulation and fluctuation of the voltage caused by the inter-region phenomenon.

Description

technical field [0001] The invention relates to an optimization method, in particular to an optimization method for a substation comprehensive automation system VQC (voltage reactive power control). technical background [0002] At present, the control methods for substation VQC (voltage reactive power control) include the following: [0003] Method 1: On-load voltage regulation of the main transformer and comprehensive control of capacitors; [0004] Method 2: automatic control of the main transformer on-load voltage regulation, and the capacitor is disabled; [0005] Mode 3: Manual control of main transformer on-load voltage regulation, automatic control of capacitors; [0006] Mode 4: main transformer on-load automatic control, capacitor timing control; [0007] Mode 5: Main transformer on-load voltage regulation manual control, capacitor timing control. [0008] For the first method of VQC (voltage reactive power control), that is, the main transformer on-load voltag...

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Application Information

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IPC IPC(8): H02J3/18G05F1/70
CPCY02E40/30
Inventor 梁卢鸿李承耀张勇王卫斌
Owner SHANGHAI ELECTRIC POWER COMM
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