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Reactive power and voltage control simulation system and method based on grid regulation and control integrated mode

A power grid regulation and voltage control technology, applied in general control systems, control/regulation systems, simulators, etc., can solve the problems of not being able to meet the needs of the power grid, without considering the adjustment of the power grid, and achieving comprehensive and reasonable analysis and reducing input The real effect of workload and teaching plans

Active Publication Date: 2016-03-23
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
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Problems solved by technology

Therefore, in the process of analysis and calculation, only the influence of the AVC control strategy on the power grid is considered, and the power generation and load changes of the power grid during the AVC control process are not considered, and the possible adjustment of the power grid operation mode is not considered, which cannot meet Quantitative analysis of AVC closed-loop control for power grids that change continuously over a long period of time

Method used

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  • Reactive power and voltage control simulation system and method based on grid regulation and control integrated mode

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Effect test

Embodiment 1

[0044] The reactive power and voltage control simulation system based on the integration mode of power grid regulation includes:

[0045] The simulation service system is used to receive external control and disturbance, simulate grid equipment adjustment, simulate grid power flow changes, generate real-time simulated grid data, store, manage and distribute real-time simulated grid data, and provide real-time simulated grid data to control system;

[0046] The control system receives and stores real-time simulated power grid data from the simulation service system, formulates control strategies for the simulated power grid, generates control instructions, and sends the control instructions to the simulation service system.

[0047] In this embodiment, the reactive power and voltage control simulation system based on the integrated mode of power grid regulation combines two major systems in the power system: DTS system and AVC system. The DTS system refers to the power grid dis...

Embodiment 2

[0060] The reactive power and voltage control simulation method based on the integrated mode of power grid regulation includes the following steps:

[0061] Step (1): The simulation system storage module loads the simulation teaching plan, which includes the power grid model data and the actual power grid data; in this step, specifically includes: the simulation service system makes the simulation teaching plan including the power grid model data and the actual power grid data, and the simulation system There are two steps to load the simulation teaching plan into the storage module. There are two ways for the simulation service system to make the simulation teaching plan including the grid model data and the actual grid data: one is that the DTS system adopts the SCADA / EMS / DTS integrated system (the EMS system is the power grid energy Management system; SCADA, SupervisoryControlAndDataAcquisition system is data acquisition and monitoring control system, which is a computer-bas...

Embodiment 3

[0075] The difference between this embodiment and embodiment 2 is:

[0076] Step (2) further includes:

[0077] Step (21): The power grid simulation module simulates the power flow change according to the simulation teaching plan. During the simulation process, the information statistics module counts the evaluation parameters of the power grid, and the simulation time is one cycle; in this embodiment, one cycle is 24 hours. With generator active power output, machine terminal voltage curve, load active power, reactive power curve and other actual grid power generation and load curve data, the power grid simulation module can automatically adjust power generation, load active power, reactive power and machine terminal voltage according to the above data, and the simulation day When the load changes, the power flow of the power grid changes, and the parameters such as voltage crossing, network loss, and switch displacement times are automatically counted during the simulation p...

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Abstract

The invention discloses a reactive voltage control simulation system and method based on a power grid regulation and control integrated mode. The reactive voltage control simulation system based on the power grid regulation and control integrated mode comprises a simulation service system and a control system. The simulation service system is used for receiving external control and disturbance, simulating the regulation of power grid equipment, simulating the load flow changes of a power grid, generating real-time simulation power grid data, storing, managing and distributing the real-time simulation power grid data, and supplying the real-time simulation power grid data for the control system. The control system receives the real-time simulation power grid data from the simulation service system and stores the real-time simulation power grid data, formulates a simulation power grid control strategy, generates a control instruction and sends the control instruction to the simulation service system. According to the reactive voltage control simulation system and method, an AVC system and a DTS system can conduct closed-loop control simulation on the power grid according to an actual power grid operation electricity generation load curve in continuous time periods, and the defect that when an existing AVC system conducts verification and analysis on the control strategy, the regulation condition which may occur is not taken into consideration is overcome.

Description

technical field [0001] The invention relates to the technical field of automatic control and simulation of electric power system dispatching, in particular to a reactive power voltage control simulation system and a method thereof based on an integrated mode of power grid regulation. Background technique [0002] Under the integrated regulation mode, for the regional power grid, the automatic reactive power and voltage control system (AVC) is one of the most important automatic control systems. As a real-time control system, AVC has very high requirements on operation reliability and safety. Before the AVC system is put into closed-loop control operation, or before a substation is put into closed-loop control, an effective method is needed to analyze and verify the strategy given by the AVC system to confirm the rationality and safety of the closed-loop control strategy given by the AVC system And correctness, this kind of verification link is indispensable, and it is an im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B17/02
Inventor 谢江王鹏汤磊郑澍
Owner STATE GRID CORP OF CHINA
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