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Stochastic production simulation method and application of sending end power system considering energy curtailment constraints

A power system and simulation method technology, applied in wind power generation, data processing applications, information technology support systems, etc., can solve the problems of non-fossil energy sustainable development, non-fossil energy waste, etc., to achieve low pollution and improve peak shaving capability and the effect of ensuring safe and stable operation

Active Publication Date: 2022-05-24
国家电网有限公司西南分部 +2
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Problems solved by technology

Energy abandonment not only causes a lot of waste of non-fossil energy, but also brings many blows to the sustainable development of non-fossil energy

Method used

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  • Stochastic production simulation method and application of sending end power system considering energy curtailment constraints
  • Stochastic production simulation method and application of sending end power system considering energy curtailment constraints
  • Stochastic production simulation method and application of sending end power system considering energy curtailment constraints

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Embodiment

[0115]The present embodiment considers the random production simulation method of the power system considering the participation of multiple types of power sources in peak regulation to a certain level year of a certain actual H regional power grid in China, and calculates the reliability indicators and production cost indicators of nuclear power units and various types of hydropower units participating in peak regulation. In this year, the total installed capacity of the H regional power grid was 372598MW, of which the coal-fired machine assembly capacity was 227751MW, accounting for 61.3%, the hydropower assembly capacity was 8062MW, accounting for 2.16%; the installed capacity of nuclear power was 35724MW, accounting for 9.5%, and the maximum load was 284800MW。 Some of the calculation data settings are as follows: the coal price is taken as 560 yuan / t, the gas price is 4000 yuan / t, the environmental cost of the coal-fired unit is 101.246 yuan / MWh, the environmental cost o...

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Abstract

The present invention relates to a stochastic production simulation method and application of a sending-end power system considering energy abandonment constraints. The stochastic production simulation method includes the following steps: 1) Obtaining the annual load curve, and removing all nuclear power plants from the annual load curve. Annual output curve to obtain the continuous load curve, and according to the annual load level, the continuous load curve is divided into three stages: base load, waist load and peak load; 2) establish an equivalent power function according to the continuous load curve; 3 ) Realize output control of thermal power units and hydroelectric units at different stages according to equivalent electricity; 4) Consider the quotation of clean energy and its energy abandonment constraints, dynamically adjust the output status of clean energy and thermal power units, and obtain random production simulation data of the power system . Compared with the prior art, the present invention considers that the discardable power generation capacity of clean energy such as solar energy and wind power can be used as a conventional power source to participate in power system peak regulation, so as to ensure the minimum pollution of the system to the environment.

Description

Technical field [0001] The present invention relates to the field of power system planning and operation control technology, in particular to a random production simulation method and application of a power system at the sending end considering energy abandonment constraints. Background [0002] Power system stochastic production simulation is one of the basic analysis tools for power system planning and operation, which calculates the power generation capacity, system production cost and system reliability index of each power plant by optimizing the production and operation of the generator set, considering the uncertainty of unit failure and load. Traditionally, nuclear power units do not participate in grid peak regulation, not because of unit design, but because of the higher cost of nuclear fuel and the smaller proportion of nuclear power. With the development and construction of nuclear power, wind power and photovoltaic power generation, it will be difficult to meet the ne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q50/06H02J3/00H02J3/24H02J3/46
CPCH02J3/008H02J3/24H02J3/46H02J2203/20Y04S10/50
Inventor 魏明奎路亮周全程浩忠柳璐蔡绍荣江栗袁杨陈佩华张程铭
Owner 国家电网有限公司西南分部
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