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General plan value curve management method

A management method and planning curve technology, applied in the direction of AC network voltage adjustment, electrical components, single network parallel feeding arrangement, etc., can solve problems such as inflexible configuration, inconvenient use, and huge difference in management functions

Pending Publication Date: 2022-08-02
NR ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the differences in dispatching automation systems and control strategies, there are differences in the methods of dispatching plan values ​​when dispatching, and the blocking processing logic under different working conditions is also different, which cannot be flexibly configured, resulting in the planning curves of different power plants. The management functions vary greatly, the configuration is complicated, the debugging workload is heavy, and the use is inconvenient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Example 1: Only configure the remote scheduling plan value curve

[0046] In the wizard function, only one remote command source is added, a planning curve model is created, and the processing strategy of each abnormal state is configured according to the operation requirements of the power plant. When the state of the remote command source is normal, the planned value curve outputs the command normally; when the state of the remote command source is abnormal, the exception processing is carried out according to the triggered exception handling strategy.

[0047] When the "Skip current command" strategy is triggered, the planning curve module keeps the last value unchanged, but keeps the on-duty status unchanged; when the "Block planning curve" strategy is triggered, it stops sending the planning curve command value and sets the blocking flag . When the "switch abnormal instruction" strategy is triggered, since there is no switchable instruction, it is processed accord...

Embodiment 2

[0048] Example 2: Configure only the local plan value curve

[0049] In an offline microgrid or energy storage power station, generally only one local command source is added to the wizard function, a planning curve model is created, and the processing strategy for each abnormal state is configured according to the operation requirements of the power plant.

[0050] When the communication between the power plant and the dispatcher is interrupted, or the dispatcher command source is invalid, the local planning curve needs to be used. Multimodal local planning curves based on calendar patterns, such as image 3 shown. Proceed as follows:

[0051] First, under the local command source, configure multiple pattern curve objects according to the number of planned curve patterns to be used. Different pattern curve objects are distinguished by corresponding IDs.

[0052] Second, configure the control instruction data sets of different time periods from 00:00 to 24:00 for each mode ...

Embodiment 3

[0056] Example 3: Configure the remote planned value curve and the local planned value curve

[0057] In the wizard function, multiple remote command sources and a local command source can be added, a planning curve model can be created, and the processing strategy of each abnormal state can be configured according to the operation requirements of the power plant.

[0058] The program receives the remote planning curve in real time and updates the local planning curve value from the local settings. When the remote command state is abnormal and needs to be switched, the command source switching logic is started.

[0059] like Figure 4 Shown is a schematic flow chart of the logic method for multi-level instruction source switching. The detailed steps are as follows:

[0060] First, determine whether to enable the automatic switching logic of command source switching. If it is not enabled, it means that according to the remote on-site pressure plate and command source set ma...

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Abstract

The invention discloses a general plan value curve management method, and the method comprises the steps: building a plan value curve model through obtaining a plan value operation mode of a power plant; setting related receiving analysis parameters of the remote plan value curve, configuring a local plan value curve and setting a mode according to a calendar; configuring an exception handling strategy; receiving a remote plan curve issued by scheduling, and reading a local plan value curve; updating the planned value in real time, detecting an abnormal state, and processing an abnormal value according to a configuration strategy; an on-duty instruction source is determined through multi-level instruction source switching logic; and finally, outputting a plan value from the on-duty instruction, and carrying out forwarding and remote control outlet functions. According to the invention, a flexible planned value curve management function can be provided for various power plants and energy storage power stations, input of various instruction sources, setting of a local plan in a calendar mode, configurable exception handling strategies and multi-level instruction switching logic are supported, and various functions of real-time remote control forwarding are realized.

Description

technical field [0001] The invention relates to a plan value curve management method, in particular to a general plan value curve management system and method. Background technique [0002] The planned value curve is also called the planned curve and the power generation plan. It generally refers to the power and voltage regulation plan value sequence issued by the power grid dispatch center to the power plant, which is used to realize the functions of automatic generation control (AGC) and automatic voltage control (AVC). It is used for the control function of the microgrid energy storage system, and there are common power plan curves and voltage plan curves. [0003] In the current power system, automatic generation control (AGC) and automatic voltage control (AVC) have been widely used, and the planned value command generally adopts one or more combination of day-ahead planning, real-time dispatching remote adjustment and local planning. method, select the planned value ...

Claims

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Application Information

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IPC IPC(8): H02J3/46H02J3/12H02J13/00
CPCH02J3/466H02J3/12H02J13/0004H02J2203/20
Inventor 王建锋王小平郭鑫溢杨扬徐浩田华姜凯金岩磊葛立青
Owner NR ELECTRIC CO LTD
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