Power flexible load control system and control method thereof

Abstract

The invention provides a power flexible load control system and a control method thereof, relating to the technical field of power load control and solving the technical problem of the power load control. The system comprises a load control center, a flexible load controller and a plurality of controlled load loops, wherein each controlled load loop is provided with a trip controller for controlling the loop to be switched on and off, and a load monitoring device for collecting electric signals of the loop; the flexible control controller is connected with the load monitoring devices in a communication manner, and a load information collecting module is connected with the main power supply output end of a power distribution station; the load control center is used for sending load control information to the flexible load controller in a wireless communication manner; and loads are removed by the flexible load controller according to a sequence of the priority levels of the controlled load loops from bottom up, and the follow-up load removing motion is stopped until the total power supply load of the power supply side meets a load limit requirement. According to the system and method provided by the invention, the power flexible load control can be realized.

Description

technical field [0001] The invention relates to electric load control technology, in particular to an electric power flexible load control system and a control method thereof. Background technique [0002] At present, the domestic power system generally installs a load control system on the large user side. [0003] Such as image 3 As shown, the existing electric load control system is mainly composed of a load control unit 1' and a remote load control center 5', and the load control unit 1' is connected with the load control center 5' by GPRS wireless communication. The load control center issues a load limit order to the distribution station according to the current system load level, and the load limit order includes the load limit amount (active power) and action time. That is to say, the load control center informs the load control unit that it will limit the current load to the specified level within the specified time, for example, reduce the load by 30% within 15 m...

AI Technical Summary

Problems solved by technology

[0006] To sum up, the existing power load control system has the following problems: 1) The load control completely meets the load control demand of the power supply side and adopts "forced" load pulling, without considering the coordination and control of the user side. The removed load circuit is sensitive to the quality of power supply, which will inevitably cause power outage losses; 2) The existing power load control system makes end users have almost no ability to respond to power limit requirements, even if the "notification" information of the load control terminal, It is also necessary for the property management personnel to take manual notification to notify the end users of the power limit information. There is a possibility of forced load limit caused by delay and poor transmission of information; 3) The load control unit pulls the load according to the preset fixed order , causing fixed users to be limited, which often causes conflicts between users and the property. All users contribute to the total power load, but the responsibility for power restriction is only borne by fixed users, which is unfair.

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