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A Control Method for Improving Deep Peak Shaving Capability of Power Plant

A control method and peak shaving technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of insufficient peak shaving capacity of thermal power units and increasing power plants.

Active Publication Date: 2021-05-11
STATE GRID LIAONING ELECTRIC POWER RES INST +2
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Problems solved by technology

[0004] In view of the deficiencies in the above-mentioned prior art, the present invention, in the case of insufficient peak-shaving capability of the thermal power unit, increases the output reduction range of the power plant by configuring the thermal power plant with an electric heat storage device, effectively improves the deep peak-shaving capability of the power plant, and simultaneously increases The number of power plants with deep peak shaving capability

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  • A Control Method for Improving Deep Peak Shaving Capability of Power Plant
  • A Control Method for Improving Deep Peak Shaving Capability of Power Plant
  • A Control Method for Improving Deep Peak Shaving Capability of Power Plant

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[0043] The specific implementation manners proposed by the present invention will be further described below in conjunction with the above-mentioned drawings.

[0044] Such as figure 1 As shown, the present invention provides a control method for improving the deep peak-shaving capability of a power plant, and the specific implementation steps are as follows:

[0045] Step 1: Determine the type of power plant and the size of the original deep peak-shaving capacity. Specifically, it includes determining whether the power plant is a pure thermal power unit or a combined heat and power unit. For pure thermal power units, determine whether the unit can perform deep peak regulation, and determine the size of its deep peak regulation capability; for cogeneration units, generally cogeneration units mainly operate during the heating period, determine whether the cogeneration unit can participate in deep peak regulation , and ensure the deep peak-shaving capacity of cogeneration unit...

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Abstract

The invention discloses a control method for improving the deep peak-shaving capability of a power plant, which belongs to the field of power system operation and control. In the present invention, a large-capacity electric heat storage device is arranged on the side of the thermal power plant to improve the deep peak-shaving capacity of the thermal power plant when the peak-shaving capability of the thermal power unit is insufficient. Increasing the output reduction range of power plants has effectively improved the ability of deep peak regulation of power plants, and at the same time increased the number of power plants with deep peak regulation capabilities. At the same time, by setting the electric heat storage device through this method, the heat supply and power supply of the combined heat and power unit are effectively separated, the flexibility of the power supply of the combined heat and power plant is improved, and the heat supply capacity is effectively improved.

Description

technical field [0001] The invention relates to the field of power system operation and control, in particular to a control method for improving the deep peak-shaving capability of a power plant. Background technique [0002] Power grid peak regulation mainly refers to the process of adjusting the output of generating units to meet the requirements of the daily peak load of the system. At present, peak shaving is generally divided into conventional peak shaving and deep peak shaving according to the degree of peak shaving. Conventional peak shaving mainly refers to the fact that the power grid is often overloaded during peak power consumption. At this time, generator sets other than normal operation need to be put into use to meet the demand and used to adjust the peak of electricity consumption. This part of the generator set is called peak-shaving unit. Deep peak shaving mainly refers to an operation mode that when the peak-to-valley difference of the grid load is large,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46H02J3/38H02J3/28
CPCH02J3/28H02J3/381H02J3/46
Inventor 葛维春史松杰罗桓桓滕云李家珏
Owner STATE GRID LIAONING ELECTRIC POWER RES INST
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