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Simulation method and system for flexible loads participating in power grid active power automatic control

A flexible load and power grid system technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as the inability to simulate the operating characteristics of the power grid

Pending Publication Date: 2020-04-21
JIANGSU ELECTRIC POWER CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The active power control of the traditional power system is usually aimed at the power generation side to automatically control the active power of the thermal power unit, but it is impossible to simulate the changes in the operating characteristics of the power grid after the flexible load of the power grid participates in the active power control

Method used

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  • Simulation method and system for flexible loads participating in power grid active power automatic control
  • Simulation method and system for flexible loads participating in power grid active power automatic control
  • Simulation method and system for flexible loads participating in power grid active power automatic control

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Embodiment 1

[0069] Based on the existing power grid simulation system, the present invention expands the load model, establishes a detailed flexible load simulation model, decomposes the flexible load into flexible loads with control capabilities and conventional loads, and aggregates them according to the response characteristics of the loads. The load aggregation of the control capability is that the equivalent unit participates in the interactive control simulation of the power grid, and realizes the simulation analysis of the flexible load control characteristics.

[0070] Such as figure 1 As shown, a flexible load participating in the active power automatic control simulation method of the power grid provided by the present invention includes:

[0071] S1 aggregates flexible loads with active power control capabilities based on the pre-built flexible load simulation model to obtain flexible load equivalent generator sets;

[0072] S2 simulates the disturbance of the power grid syste...

Embodiment 2

[0137] Based on the same inventive concept, the present invention also provides a simulation system for active power automatic control of flexible loads participating in the power grid, including:

[0138] The power grid simulation platform is used to aggregate the flexible loads with active power control capabilities of the power grid based on the pre-built flexible load simulation model to obtain flexible load equivalent generator sets; it is also used to simulate disturbances in the power grid system;

[0139] Regulating system, used for power regulation by AGC, and power distribution to all units in the grid;

[0140] The flexible load equivalent generator set is used to perform power control on each flexible load to which it belongs based on the distributed power.

[0141] In an embodiment, the power grid simulation platform includes: a building module for building a flexible load simulation model;

[0142] The building blocks include:

[0143] The decomposition unit is...

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Abstract

The invention discloses a simulation method and system for flexible loads participating in power grid active power automatic control. The method comprises the steps: carrying out aggregation of the flexible loads with an active power control capability of a power grid based on a pre-built flexible load simulation model, and obtaining a flexible load equivalent generator set; simulating disturbanceof a power grid system, carrying out power adjustment by AGC, and carrying out power distribution on all units of the power grid; and making the flexible load equivalent generator set carry out powercontrol on each subordinate flexible load based on the distributed power. The influence of participation of the power grid flexible loads in power grid active control on power grid operation is effectively analyzed.

Description

technical field [0001] The invention relates to the field of power system analysis, in particular to a simulation method and system for flexible loads to participate in active power automatic control of a power grid. Background technique [0002] With the advancement of smart grid construction and power marketization, the proportion of flexible loads with active response capabilities in the grid is gradually increasing, and the difficulty of grid operation control is increasing. The active power control of the traditional power system is usually aimed at the power generation side to automatically control the active power of the thermal power unit, but it is impossible to simulate the changes in the operating characteristics of the power grid after the flexible load of the power grid participates in the active power control. In order to effectively analyze the impact of grid flexible loads participating in grid active power control on grid operation, it is necessary to solve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00
Inventor 徐春雷王勇霍雪松余璟毛文博苏大威吴海伟周竞张琦兵潘玲玲
Owner JIANGSU ELECTRIC POWER CO