Multi-time-scale optimal scheduling method for power distribution company containing large-scale renewable energy sources

A renewable energy, multi-time-scale technology, applied in resources, instruments, data processing applications, etc., can solve problems such as the impact of power grid operation

Inactive Publication Date: 2015-09-30
SOUTHEAST UNIV
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Problems solved by technology

However, due to the large randomness and volatility of renewable energy outp...

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  • Multi-time-scale optimal scheduling method for power distribution company containing large-scale renewable energy sources
  • Multi-time-scale optimal scheduling method for power distribution company containing large-scale renewable energy sources
  • Multi-time-scale optimal scheduling method for power distribution company containing large-scale renewable energy sources

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Embodiment Construction

[0070] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings.

[0071] The multi-time-scale optimal dispatching method of a distribution company containing large-scale renewable energy according to the present invention includes the following steps:

[0072] Step 1: Day-ahead market optimization scheduling: With the minimum operating cost of the day-ahead power company as the optimization goal, optimize scheduling based on the day-ahead scheduling operation constraints, the next day's hourly renewable energy, load demand and real-time electricity price forecasts, and determine the following three Optimized amount: the amount of electricity purchased in the market before the day, the output of the distributed power source before the day, and the amount of interruptible load before the day

[0073] Step 2: Intraday rolling dispatch: On the...

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Abstract

The invention discloses a multi-time-scale optimal scheduling method for a power distribution company containing large-scale renewable energy sources. The method comprises steps as follows: optimal scheduling on the day-ahead market: the minimum day-ahead operating cost is taken as an optimal target, and the optimal scheduling is performed according to operating cost constraint conditions, load demand per hour in the next day, renewable energy source output and real-time electrovalence prediction; the intraday rolling optimal scheduling: according to predication for intraday short-term renewable energy source output, the optimal scheduling is performed again on the period after the moment with larger deviation, and deviation of the optimal scheduling on the day-ahead market is corrected; real-time market optimization: the optimal power flow optimization on a power distribution network is performed for a certain intraday moment according to super-short-term load and predication for renewable energy source output. With the adoption of the method, adverse effects of volatility and randomness of the large-scale renewable energy sources on the power distribution company can be reduced, the optimal scheduling for distributed power sources and interruptible loads accessed to the power distribution company in the electricity market environment is realized, and the safety and the stability of operation of the power distribution network are improved.

Description

Technical field [0001] The invention belongs to the field of distribution network operation optimization control, and relates to a multi-time scale optimization dispatching method of a distribution company containing large-scale renewable energy. Background technique [0002] With the gradual scarcity of fossil energy and the adverse effects of its use on the environment, the use and development of environmentally friendly renewable energy sources (such as photovoltaics and wind power) have become the focus of attention in countries around the world. At present, the penetration rate of renewable energy in the power system is gradually increasing. However, due to the large randomness and volatility of renewable energy output, its access is bound to have some impact on the operation of the power grid. [0003] In the power market environment where transmission and distribution are separated, power distribution companies buy wholesale electricity from the power market and provide pow...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCY02E40/70Y04S10/50
Inventor 高君顾伟任佳依朱俊澎
Owner SOUTHEAST UNIV
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