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Voltage reactive compensation method of substation automatic system

A technology of substation automation and voltage reactive power, applied in the direction of reactive power compensation, AC network voltage adjustment, etc., can solve the problems of reducing stability and reliability, complex calculations, etc., and achieve the effect of solving repeated adjustments and fluctuations

Inactive Publication Date: 2014-12-03
STATE GRID CORP OF CHINA +1
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Problems solved by technology

However, too many partitions in this method lead to complex calculations, which reduces stability and reliability.

Method used

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  • Voltage reactive compensation method of substation automatic system

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0012] Such as figure 1 , a voltage and reactive power compensation method for a substation automation system, which is used for the integrated control of the main transformer on-load voltage regulation and capacitor in the voltage and reactive power compensation control mode of the substation automation system and the automatic control of the main transformer on-load voltage regulation, capacitor The control mode of deactivation is optimized. The above-mentioned main transformer on-load voltage regulation and capacitor comprehensive control method is to control the on-load voltage regulation transformer tap and capacitor. The above-mentioned main transformer on-load voltage regulation automatic control, capacitor stop The control method used is to control the on-load voltage regulating tap. The two control methods are controlled by the improved 15-zone...

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Abstract

The invention discloses a voltage reactive compensation method of a substation automatic system. The voltage reactive compensation method is used for optimizing a main transformation on-load voltage regulation and capacitor comprehensive control mode and a main transformation on-load voltage regulation automatic control and capacitor outage control mode in the voltage reactive compensation mode of the substation automatic system. The main transformation on-load voltage regulation automatic control and capacitor outage control mode respectively controls on-load voltage regulation through the improved control method of a 15-area figure, a fourth area and a twelfth area are subdivided in the improved control method of the 15-area figure, and the operating point, close to a voltage upper limit, in the twelfth area and the operating point, close to a voltage lower limit, in the fourth area are selected out, and used as two independent areas, namely, the sixteenth area and the seventeenth area. The voltage reactive compensation method has the advantages of being capable of achieving the voltage reactive compensation of the substation automatic system well, strong in practicality and high in reliability.

Description

technical field [0001] The invention relates to the technical field of power distribution systems, in particular to a voltage and reactive power compensation method for a substation automation system. Background technique [0002] The voltage of the power system is an important indicator to measure the quality of power energy. Excessive voltage fluctuations will not only affect the efficiency and life of electrical equipment, but also endanger the safe and stable operation of the system, and even cause serious accidents such as voltage collapse and large-scale power outages. . Therefore, ensuring that the voltage quality is qualified is an important condition for the safe and high-quality power supply of the power system. At the same time, reactive power is an important factor affecting voltage quality, and realizing reactive power stratification and partition local balance is an important means to reduce network loss. Therefore, substations at all levels take on the impor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/16
CPCY02E40/34Y02E40/30
Inventor 王长彦马晓红冯磊宋如兵王宗山邱勇孙涛王守伟夏明光孙兴波
Owner STATE GRID CORP OF CHINA
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