Capacitance compensating system for minimizing whole-day active power loss of distribution network

Abstract

The invention relates to a capacitance compensating system for minimizing whole-day active power loss of distribution network, which is technologically characterized in that the capacitance compensating system comprises a sampling unit, two data input / output modules, a network data file module, a master control unit and a control command unit; the input end of the sampling unit is connected with a power line, and the output end is connected with a first data input / output module; the first data input / output module is connected with an analog-quantity / digital-quantity conversion module in the master control unit; the output end of the analog-quantity / digital-quantity conversion module is connected with an optimization module; the optimization module is further connected with a network data file module; the output end of the optimization module is connected with a second data input / output module, and the output end is connected with the control command unit. The capacitance compensating system can effectively realize a reactive power compensation effect and is suitable for low voltage stability in some cities of China. The capacitance compensating system has an important meaning at aspects of sustaining voltage stability of the distribution network, reducing electric energy loss of a line, reducing electricity charge expenditure of a user, etc.

Description

technical field [0001] The invention belongs to the technical field of reactive power compensation of distribution networks, and in particular relates to a capacitor compensation system for minimizing active power loss of distribution networks throughout the day. Background technique [0002] With the development of our country's economy and the improvement of people's living standards, people have put forward higher requirements for the supply of power quality. However, in some small and medium-sized city distribution networks, voltage problems and network loss problems caused by reactive power imbalance still exist, seriously affecting people's production and life. How to achieve reactive power optimization while ensuring the safety and reliability of the system has become an important issue that needs to be solved in the distribution network. [0003] The traditional method of switching fixed capacitor banks at the load end cannot perform continuous compensation, and is ...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a capacitor compensation system that minimizes the active power loss of the distribution network throughout the day, solve the problem of network overcompensation or undercompensation caused by traditional switching capacitor banks, and at the same time from the entire From the perspective of distribution network, comprehensively adjust the output of reactive power compensation equipment such as SVC

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