Active power unbalance adjustment method in flexible load control system

A flexible load and active power technology, applied in the direction of reducing/preventing power oscillations, can solve problems such as poor user experience in regional power grids, system stability, and active power imbalance in flexible load control systems, achieving system stability and improvement The effect of user experience and the possibility of reducing system shock

Inactive Publication Date: 2017-06-16
XUJI GRP +3
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Problems solved by technology

[0004] The purpose of the present invention is to provide an adjustment method for active power imbalance in a flexible load control system, which is used to solve the problems of poor user experience and system stability of regional power grids

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  • Active power unbalance adjustment method in flexible load control system

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] P cur Indicates the total active load of the current regional power grid, P plan Indicates the planned power consumption of the current regional grid, ΔP vacancy Indicates the total active power deficit in the current regional grid, then

[0033] ΔP vacancy =P cur -P plan

[0034] The electric power difference margin in the regional grid is represented by ε. when |ΔP vacancy When |-ε>0, the power consumption of the system does not meet the requirements of the power consumption plan, and the system adopts the adjustment method for active power imbalance in the flexible load control system of the present invention.

[0035] Such as figure 1As shown, when the system is running under the condition of unbalanced active power, the system implements the dynamic power adjustment method of active power unbalance, which will gradually adjust the flexibl...

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Abstract

The invention relates to the active power control field for a flexible load control system in regional energy Internet and discloses an active power unbalance adjustment method in a flexible load control system. The method comprises steps: when the total active power shortage of a regional power grid is larger than zero, the power generation power of the regional power grid is added; the power consumption power of a flexible load in the regional power grid is reduced, if the active power is still unbalanced, a switchable load can be cut off; when the total active power shortage of the regional power grid is smaller than zero, the power consumption power of the switchable load is added, if the active power is still unbalanced, the power consumption power of the flexible load in the regional power grid can be added; and the power generation power of the regional power grid is reduced, wherein the total active power shortage is the difference between the total active load sum of the regional power grid and planned power consumption of the regional power grid. The method solves problems of poor user experience for the regional power grid and the system stability.

Description

technical field [0001] The invention relates to an active power control strategy of a flexible load control system in the regional energy Internet and the technical field of automatic control of a distribution network considering user-side power generation, in particular to an adjustment method for active power imbalance in a flexible load control system. Background technique [0002] With the gradual deepening of the research on the load side control technology of the distribution network, the flexible load control system, which is supported by electric energy and comprehensively utilizes various distributed energy sources such as cold, heat, electricity, and hot water, is a new regional distribution network organization. It makes full use of the initiative of the load side and the instant-on feature of power generation on the user side, which improves the economy of electricity consumption on the load side. [0003] In the prior art, when load imbalance occurs (unbalance m...

Claims

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Application Information

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IPC IPC(8): H02J3/24
CPCH02J3/24
Inventor 张萌马红伟吴观斌朱毅傅美平甄立敬张鹏
Owner XUJI GRP
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