A decentralized control method for an intelligent jp cabinet with built-in svg
A technology of decentralized control and control method, applied in circuit devices, electrical components, etc., can solve the problems of lack of quantitative analysis support, low power factor, high tension of equipment operation, etc., to achieve rapid decision-making and real-time control, and improve achievability , the effect of reducing the amount of information
Active Publication Date: 2019-02-26
焦作市东方祥生电器有限公司
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Problems solved by technology
Since the SVG equipment contains high-current, high-voltage, high-frequency energy components and secondary information acquisition and processing equipment such as microelectronics and microprocessors, but due to the lack of specific quantitative analysis support, the reactive power compensation and Control measures such as three-phase unbalance adopt random fast tracking method, which leads to high operating frequency of electronic switches, and intelligent hardware has no time to consider the best operation and reduce operating temperature
And because the equipment is highly tense, the control of its heating is also random or not controlled;
[0004] In addition, the traditional power supply method adopts one-way power supply and centralized power supply method, that is, only the power company supplies power to users, and there is no reverse power supply for users. This has broken this model under the condition of new energy. Secondly, The traditional power supply method is to install power distribution equipment in the transformer, and the power user is only regarded as the controlled party; therefore, the traditional JP cabinet has the disadvantages of relatively low power factor, large energy consumption and large volume
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[0022] The present invention will be further described below in conjunction with specific embodiments.
[0023] A decentralized control method of an intelligent JP cabinet with built-in SVG, including a JP cabinet and N independent control stations, the control station and the JP cabinet are connected through communication, and the control method between the JP cabinet and the control station is as follows:
[0024] Denote the state of the JP cabinet system as x∈R n , it is controlled by N, N≤n independent control stations, where the control station i, i∈{1,2,…,N} controls the system u i , its observed value of the system is y i , the relationship between
[0025]
[0026] y(t)=C N x(t)
[0027] where u=(u i ,...,u N ) T ,y=(y 1 ,...,y N ) T ,B N =(B 1 ,...,B N ),C N =(C 1 ,...,C N ) T , called N-channel distributed control system, abbreviated as system {A, B N ,C N};
[0028] There are three control methods:
[0029] 5) Decentralized state feedback
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The invention discloses a decentralized control method of an intelligent JP cabinet of a built-in SVG. The method comprises the JP cabinet and N independent control stations, wherein the control stations and the JP cabinet are connected through communication, and the intelligent JP cabinet and the control stations are controlled through the decentralized control method. The method has the following advantages: on one hand, decentralized control does not require information exchange between the control stations, which enables a controlled system to be simply structured, and thus the reliability, economic benefits and reliability are improved; and on the other hand, the decentralized control reduces the information amount needing to be processed by each control station, and thus realization of rapid decision-making and real-time control is facilitated.
Description
technical field [0001] The invention relates to a decentralized control method for an intelligent JP cabinet with a built-in SVG, and belongs to the field of electric power transmission and distribution technical equipment. Background technique [0002] JP cabinet is the abbreviation of distribution transformer integrated distribution cabinet. With the continuous deepening of the country's transformation of distribution network, a large number of JP cabinets are used in power lines and distribution stations. JP cabinet is designed to meet the standardization, miniaturization and outdoor requirements of rural low-voltage power distribution equipment. It integrates power distribution, measurement, protection (overload, short circuit, leakage protection, rain and snow protection), and capacitor reactive power compensation. . [0003] SVG is the English abbreviation of Static Var Generator. It is an energy-saving and environmental protection device based on new power electronic...
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IPC IPC(8): H02J13/00
CPCH02J13/0006
Inventor 黄训诚练书礼孟宇红程浩程有生侯彬彬慕林
Owner 焦作市东方祥生电器有限公司