A power directional transmission control system

Abstract

The invention discloses a power directional transmission control system, which includes a bus bar, a level sensor, a distributed power controller and a load, wherein the level sensor and the distributed power controller are connected in parallel and connected in series with the load through a switch, and the level sensor It is connected to the distributed power controller for signals, and the busbar is equipped with measurement points A, E and B, where A is set on the side close to the level sensor, and B is set on the side close to the distributed power controller , and point E is set between point A and point B, and is connected to the load through a switch. The present invention adopts the control principle of power grid level, without changing the original line and adding other related equipment, and without separating each DG point with a circuit breaker, it can realize micro-grid and grid-connected control, automatic power regulation acquisition and automated management.

Description

technical field [0001] The invention belongs to the field of electric technology, and in particular relates to a power directional transmission control system. Background technique [0002] Distributed generation refers to the configuration of smaller generator sets (generally less than 30MW) at the user site or near the power consumption site to meet the needs of specific users, support the economic operation of the existing distribution network, or meet both aspects at the same time requirements. These small units include fuel cells, small gas turbines, small photovoltaic power generation, small wind and solar hybrid power generation, or hybrid devices of gas turbines and fuel cells. The reliability of service and power quality are improved due to the proximity to users. The development of technology, public environmental policies and the expansion of the electricity market together make distributed generation an important energy choice in the new century. [0003] The ...

AI Technical Summary

Problems solved by technology

[0009] ①DG complicates line voltage regulation;

[0010] ②DG makes selection and configuration of relay protection difficult;

[0011] ③DG increases the short-circuit capacity of the power grid, and it is easy to damage the equipment when a fault occurs;

[0012] ④DG has great interference to power quality

Each node of the distributed power supply DG must be separated by a circuit breaker, and the switch settings must be manually operated, which cannot achieve the control purpose of intelligent power transmission

If the energy manager is used to control the circuit, it is quite complicated, and the automation controllability and stability are poor

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