Method for distributing active power of wind-light storage transmission comprehensive power station

A technology of active power and distribution methods, applied in photovoltaic power generation, wind power generation, control generators, etc., can solve problems such as low regulation ability, failure to ensure grid power dispatching requirements, poor output power stability, etc., and achieve smooth fluctuations , Improve resource utilization and reduce fluctuations

Inactive Publication Date: 2011-10-12
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the randomness and intermittent characteristics of wind energy and solar energy lead to poor output power stability and low regulation ability. Wind power generation and solar photovoltaic power generation alone cannot guarantee the po

Method used

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  • Method for distributing active power of wind-light storage transmission comprehensive power station
  • Method for distributing active power of wind-light storage transmission comprehensive power station
  • Method for distributing active power of wind-light storage transmission comprehensive power station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] figure 1 It is the active power distribution diagram of wind-solar-storage-transmission integrated power station

[0041] like figure 1 As shown, in this embodiment, the wind power storage and transmission integrated power station consists of four parts: wind farm, photovoltaic power station, energy storage battery, and wind energy storage and transmission integrated power station energy management control system. The energy management control system of the wind-solar storage-transportation integrated power station is the controller of the wind-solar storage-transmission integrated power station. According to the active power distribution method of the wind-solar storage-transmission integrated power station of the present invention, it is responsible for setting the power p according to the wind-solar storage-transmission integrated power station set Real-time distribution of active power, real-time output of wind farm set power p w_set , PV plant set power p pv_set...

example

[0098] Apply the active power distribution method of the wind-solar-storage-transportation integrated power station based on the dynamic optimization objective and its constraint conditions of the present invention to a wind-storage-storage system with an installed capacity of 12 MW of wind power generation, 6 MW of photovoltaic power generation and 1.5 MWh of energy storage battery Transmission integrated power station and real-time measurement. In the example, the expected operating range of the state of charge SOC of the energy storage battery is taken as (20%, 80%). Regarding the power of the energy storage battery, positive indicates discharge and negative indicates charge.

[0099] figure 2 It is an effect diagram of the active power distribution method of the wind-solar storage-transmission comprehensive power station of the present invention. Curve a in the figure is the expected generating power curve of the wind-wind storage-transmission comprehensive power station,...

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Abstract

The invention discloses a method for distributing the active power of a wind-light storage transmission comprehensive power station, which is characterized in that a target optimizing distribution model is created based on a dynamic optimization objective and constraint conditions thereof; according to the set power (pset) of the wind-light storage transmission comprehensive power station, wind-light storage resource behaviors are considered; dynamic, unified and coordinated active power distribution of a wind power station, a photovoltaic power station and stored energy batteries in the wind-light storage transmission comprehensive power station is carried out, and the running of the wind-light storage transmission comprehensive power station is optimized, thus ensuring the smoothness ofthe output power, reducing the fluctuation of the output power, improving the stability of the output power of the system, decreasing the influences of the fluctuation of the output power on power grid frequency, utilizing the wind, the light and stored resources more effectively, improving the utilization rate of wind energy resources and solar energy resources, realizing the technical effects of considering the service life of power generation and energy storage equipment.

Description

technical field [0001] The invention belongs to the technical field of active power control, and more specifically relates to an active power distribution method of a wind-solar storage-transmission integrated power station. Background technique [0002] The global energy shortage and the increasingly serious environmental pollution problems have led to the rapid development of wind power and solar photovoltaic power generation worldwide, and the proportion of wind power and solar photovoltaic power generation in the power grid is increasing. However, the randomness and intermittent characteristics of wind energy and solar energy lead to poor output power stability and low regulation ability. Independent wind power generation and solar photovoltaic power generation cannot well guarantee the power dispatching requirements of the power grid, especially the power grid during peak power consumption. This has become the two major problems facing wind power generation and solar ph...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02P9/04H02J13/00
CPCY02E10/56Y02E10/76Y02E40/70Y04S10/123
Inventor 邹见效徐红兵
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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