Peak-load regulation resource call decision-making method suitable for large-scale renewable energy grid connection

A technology of renewable energy and decision-making methods, applied in the field of peak-shaving resource call decision-making, can solve the problems of no peak-shaving resource call amount and call order, no model and method proposed, etc.

Active Publication Date: 2017-10-20
STATE GRID ENERGY RES INST +2
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Problems solved by technology

[0008] However, there is no relevant and appropriate model and method that can describe the technical and economic characteristics of various peak shaving resources and q

Method used

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  • Peak-load regulation resource call decision-making method suitable for large-scale renewable energy grid connection
  • Peak-load regulation resource call decision-making method suitable for large-scale renewable energy grid connection
  • Peak-load regulation resource call decision-making method suitable for large-scale renewable energy grid connection

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Embodiment Construction

[0075] The present invention will be described in detail below in conjunction with specific implementation methods and accompanying drawings.

[0076] Such as figure 1 As shown, the present invention provides a method for decision-making of peak-shaving resource invocation adapting to large-scale renewable energy grid-connected, including the following steps:

[0077] S1. Obtain the time-series load demand P in a specific time period in a specific region L , to determine the peak-shaving demand A of the specific regional power dispatching organization in a specific period of time t .

[0078] Suppose the initial moment of a specific period is t 0 , the sequential load demand at the initial time is The end time is t, and the sequence load demand at the end time is And the power dispatching agency at time t 0 Predict peak shaving capacity demand A at time t t for:

[0079]

[0080] In the formula, when A t When it is positive, it represents the demand for peak regu...

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Abstract

The invention discloses a peak-load regulation resource call decision-making method suitable for large-scale renewable energy grid connection, and the method comprises the following steps: obtaining a time sequence load demand PL in a specific time period in a specific region, and determining a peak-load regulation demand At of a power dispatching mechanism; determining the time sequence prediction output PW of a wind turbine generator set and the time sequence prediction output PS of a solar generator set; determining usable peak-load regulation resources Mi in a system, determining the adjustable measurement range of each type of peak-load regulation resources Mi, the peak-load regulation capacities DMi, and the corresponding peak-load regulation costs CMi, and constructing a mixed integral optimization model; and obtaining a peak-load regulation resource call sequence optimized in the specific time period. Through the construction of an economic model and a cost model of each peak-load regulation means, the method achieves the construction of the mixed integral optimization model which takes the economical efficiency as the target. Through model solving, the method obtains the peak-load regulation resource call quantity and sequence with the optimal cost effectiveness, enables a power system to adapt to the efficient consumption of renewable resources, improves the peak-load regulation capability of the power grid, and is better in practical guide significance and application value.

Description

technical field [0001] The invention relates to the technical field of electric power simulation analysis, in particular to a decision-making method for calling peak-shaving resources adapted to large-scale renewable energy grid connection. Background technique [0002] With the large-scale development of renewable energy such as wind power and solar energy, the impact of its randomness and intermittency on the safe and stable operation of the power system has become increasingly prominent. The integration of large-scale new energy sources has led to increasing pressure on the system for peak regulation. In particular, the anti-peak regulation characteristics of wind power have significantly increased the difficulty of power grid peak regulation. [0003] Limited by resource endowment, my country's power supply structure is dominated by coal power with poor flexible adjustment capabilities, and the system's weak peak-shaving capabilities have limited the consumption of renew...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/46
CPCH02J3/381H02J3/382H02J3/383H02J3/386H02J3/46H02J2203/20Y02E10/56Y02E10/76
Inventor 元博张晋芳王耀华王晓晨栗楠张富强冯君淑郑宽焦冰琦闫晓卿伍声宇王刚张涛王江波刘军会
Owner STATE GRID ENERGY RES INST
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