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A real-time control method for power grid active power considering the constraints of medium and long-term transactions and spot transactions

A spot transaction, real-time control technology, applied in computing, single-network parallel feeding arrangement, data processing applications, etc., can solve the problem of not considering the requirements of medium and long-term transaction constraints and spot transaction constraints at the same time, to improve transaction power, To achieve the effect of overall coordination

Active Publication Date: 2021-07-23
NARI TECH CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent does not consider how to satisfy both medium and long-term transaction constraints and spot transaction constraints in an electricity market environment where medium-to-long-term and spot transaction modes coexist

Method used

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  • A real-time control method for power grid active power considering the constraints of medium and long-term transactions and spot transactions
  • A real-time control method for power grid active power considering the constraints of medium and long-term transactions and spot transactions
  • A real-time control method for power grid active power considering the constraints of medium and long-term transactions and spot transactions

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0038] Whether it is a medium-to-long-term transaction or a spot transaction, it is required to control the relevant power plant to complete the corresponding power generation within a predetermined time. The ratio of the transaction completion progress of the power plant at a certain moment to the transaction time progress becomes the measure of the power plant transaction. The evaluation index of power performance. If in the real-time active power control optimization decision of the power grid, under the constraints of power plant grid-connected active power adjustment speed and adjustable space, as well as power balance, transmission channel capacity, and frequency and peak regulation, prior...

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Abstract

The invention discloses a real-time active power control method of a power grid considering the constraints of medium and long-term transactions and spot transactions, and belongs to the technical field of power system operation and control. Aiming at the real-time control of grid-connected active power of power plants under the coexistence of mid- and long-term transactions and spot transactions, the present invention proposes to use the ratio of transaction electricity completion progress to transaction time progress as the transaction electricity execution rate index, and by introducing a parameter less than 1 Adjust the execution rate index of spot transaction electricity, considering the adjustment speed and adjustable space of the grid-connected active power of power plants, as well as power balance, transmission channel capacity and frequency modulation and peak regulation constraints, etc. The product of the implementation rate index is used as the weight of the grid-connected active power of the power plant to minimize the grid active power control optimization model, which realizes the grid active power control that meets the requirements of medium and long-term transaction constraints and spot transaction constraints.

Description

technical field [0001] The invention relates to the technical field of power system operation and control, in particular to a real-time active power control method for a power grid that takes into account the constraints of medium and long-term transactions and spot transactions. Background technique [0002] With the advancement of the electricity market, the proportion of medium and long-term transaction electricity with annual and monthly electricity assessment cycles is rapidly increasing. However, as the proportion of new energy installed capacity continues to increase, the capacity of flexible power plants is even more insufficient. Under the traditional dispatching plan mode that is completely arranged according to electric power, since the prediction accuracy of new energy power generation is still relatively low, only a small amount of output can be arranged for new energy in the planning stage, and the problems of wind and solar curtailment will become more and mor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46
CPCG06Q10/04G06Q50/06H02J3/46
Inventor 徐泰山汪马翔汪宁渤行舟王昊昊扈卫卫付铮周强段慧张昊天
Owner NARI TECH CO LTD
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