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Random production simulation method taking participation of various power supplies in peak load regulation and application thereof

A multi-type power supply and simulation method technology, applied in the field of power system planning and operation control, can solve the problems of not considering the impact of nuclear power and multi-type hydropower unit peak regulation, etc., to stabilize fluctuations, improve peak regulation capabilities, and improve economic efficiency Effect

Active Publication Date: 2019-02-15
国家电网有限公司西南分部 +2
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  • Abstract
  • Description
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Problems solved by technology

The stochastic production simulation of the above patents further considered the impact of pumped storage power plants and load changes, but still did not consider the impact of nuclear power and multi-type hydropower units participating in peak regulation

Method used

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  • Random production simulation method taking participation of various power supplies in peak load regulation and application thereof
  • Random production simulation method taking participation of various power supplies in peak load regulation and application thereof
  • Random production simulation method taking participation of various power supplies in peak load regulation and application thereof

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Embodiment

[0126] In this embodiment, the stochastic production simulation method of the power system considering multi-type power sources participating in peak regulation is applied to an actual H regional power grid in a certain level year, and the reliability index and production cost index of nuclear power units and various types of hydropower units participating in peak regulation are calculated. . In this year, the total installed capacity of regional H power grid was 372,598MW, among which the installed capacity of coal-fired power plants was 227,751MW, accounting for 61.3%, the installed capacity of hydropower was 8,062MW, accounting for 2.16%; the installed capacity of nuclear power was 35,724MW, accounting for 9.5%, and the maximum load was 284,800MW. Part of the calculation data is set as follows: the coal price is 560 yuan / t, the gas price is 4000 yuan / t, the environmental cost of coal-fired units is 101.246 yuan / MWh, the environmental cost of gas-fired units is 19.285 yuan / MW...

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Abstract

The invention discloses a random production simulation method taking participation of various power supplies in peak load regulation and application thereof. The random production simulation method comprises the following steps: 1) acquiring an annual load curve; 2) removing annular output of wind power, photovoltaic power and nuclear power from the annular load curve to obtain a continuous load curve, and partitioning the continuous load curve into a base load, a shoulder load and a peak load according to an annual load level; 3) building an equivalent electric quantity function according tothe continuous load curve; and 4) realizing output of a thermal power unit and a hydropower unit at different stages according to the equivalent electric quantity of the base load, shoulder load and peak load to obtain random production simulation data of a power system. Compared with the prior art, the random production simulation method has the advantage of improving the peak load regulation capability of a regional power grid.

Description

technical field [0001] The invention relates to the technical field of power system planning and operation control, in particular to a stochastic production simulation method and its application considering multi-type power sources participating in peak regulation. Background technique [0002] Power system stochastic production simulation is one of the basic analysis tools for power system planning and operation. It calculates the power generation, system production cost and reliability index. Traditionally, nuclear power units do not participate in grid peak regulation, not because of unit design, but because nuclear fuel costs are high and the proportion of nuclear power is relatively small. With the development and construction of nuclear power, wind power and photovoltaic power generation, it will be difficult to meet the needs of power grid load changes only by thermal power and pumped storage units for peak regulation. It is necessary for nuclear power units to parti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46G06Q10/06G06Q50/06
CPCH02J3/46G06Q10/06312G06Q50/06H02J2203/20Y02E10/76Y04S10/50
Inventor 袁杨周全路亮魏明奎蔡绍荣柳璐江栗程浩忠罗春林张程铭
Owner 国家电网有限公司西南分部
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