Modular distribution network dynamic simulation and terminal test integration system

A technology of dynamic simulation and terminal testing, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc. It can solve the problems of high risk, inability to effectively detect distribution automation systems, and few test items, and achieve high scalability and flexibility. Effect

Active Publication Date: 2014-10-15
STATE GRID CORP OF CHINA +1
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  • Abstract
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  • Claims
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Problems solved by technology

However, at present, the test joint debugging of the electric automation system can only be carried out on the on-site 10kV distribution network. There are few testable items, high risk and low efficiency, and it is impossible to effectively detect the deficiencies and defects of the distribution automation system.

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  • Modular distribution network dynamic simulation and terminal test integration system
  • Modular distribution network dynamic simulation and terminal test integration system

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 1 As shown, the present invention adopts the following technical solutions, the integrated system of distribution network dynamic simulation and distribution automation testing consists of a simulation configuration screen 1, a power supply module 2, a line module 3, a switch module 4, a load and reactive power compensation module 5, Distributed power module 6, fault generator 7 and power distribution terminal 8 are composed. The power module 2 is composed of a three-phase programmable AC power supply, a transformer simulator, and a transformer grounding unit simulator; the line module 3 is composed of an outlet circuit breaker, an overhead line simulator, a cable circuit simulator 14, and a cable branch circuit simulator 15; the switch module 4 is composed of a voltage-type switch simulator 16, a current-type switch simulator 17,...

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Abstract

The invention discloses a modular distribution network dynamic simulation and terminal test integration system. Under the condition that a power system similarity criterion is met, a 400V low voltage device is used to simulate a 10kV distribution network actual device according to the principle of capacity equal ratio reducing. A series of modular distribution network device simulators are designed. According to a studied actual 10kV distribution line, a corresponding distribution network simulation test system is combined by simulating a configuration screen. By simulating normal operation, power outage and transmission operations, power supply fluctuations, grounding or short circuit faults of a distribution network in different grounding modes, transient and steady operation characteristics of the distribution network are recorded and studied. In addition, the system can simulate an automation movement and a processing process of a feeder, and tests the functions and the performances of a distribution automation switch controller.

Description

technical field [0001] The invention relates to an integrated system for dynamic simulation and terminal testing of a modular distribution network. Background technique [0002] The distribution network is an important part of the power grid and a key link to control and ensure the reliability and quality of power supply for users. Compared with power transmission and transformation, the grid design, operation monitoring and experimental research of my country's distribution network are obviously behind, and it is the weakest link in the construction of my country's modern power grid. In recent years, with a large number of distributed new energy sources, micro-grids and diversified loads connected to the distribution network, the traditional distribution network has changed from a passive network to an active network, and the power flow has changed from unidirectional to multi-directional. The operating characteristics, protection and control strategies are becoming more a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 孙勇李立生邵志敏李建修张世栋张林立刘合金
Owner STATE GRID CORP OF CHINA
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