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Slide control method and device of new energy synchronization tie line power

A tie-line power and constant power control technology, which is applied in energy reserve, AC network load balancing, single-grid parallel feeding arrangement, etc. Power instability and other problems, to achieve the effects of diverse operating modes, improved power quality, and easy implementation

Active Publication Date: 2013-09-25
SHENZHEN POWER SUPPLY BUREAU
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AI Technical Summary

Problems solved by technology

However, new energy power generation generally has the unfavorable impact of power instability on the connection point of the grid-connected point, which has an impact on the large power grid. At this stage, existing new energy is rarely used to optimize the combination to solve the problem of poor quality of new energy grid-connected power in remote areas. question

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  • Slide control method and device of new energy synchronization tie line power
  • Slide control method and device of new energy synchronization tie line power
  • Slide control method and device of new energy synchronization tie line power

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Embodiment Construction

[0044] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0045] The present invention relates to an integrated system including an optical storage micro-grid power generation system and a combined cooling / heating / electricity supply system. The existing technology is effectively utilized to integrate the functions of different new energy power generation systems. Charge and discharge control and gas turbine output control can suppress the power fluctuation of the micro-grid grid connection line, thereby ensuring the power quality of the micro-grid power generation system. The comprehensive system involved in the present invention mainly includes the combined cooling, heating and power supply system of the solar storage system, including a triple supply system composed of a gas turbine, a generator, a waste heat recovery device, and a refrigerator, and the cooling and heating loads connected to the triple supply ...

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Abstract

The invention provides a slide control method and device of new energy synchronization tie line power. When fluctuation of a grid exists, judgment is performed on a fluctuation frequency band. By utilizing coordination between an energy storage battery and a fuel machine, compensation is performed on fluctuation components of different frequency bands in new energy output power. Existed new energy forms are fully utilized so as to avoid investment of more devices, the utilization rate of energy is improved, the requirement for power supply of a user is met, and meanwhile, reconstruction of a large grid is reduced. The device comprises a cold / hot / electricity combined supply system of a light storing system and is simple in structure and easy to achieve. In addition, running modes are multiple, the comprehensive treatment effect of power quality is achieved, and improvement of the power quality for remote areas is particularly more obvious.

Description

technical field [0001] The invention relates to the field of power system operation control, in particular to a method and device for smoothing the power of new energy grid-connected tie lines. Background technique [0002] In order to improve the power supply capacity in remote areas, various forms of new energy power generation technologies have been applied. For example, the combined cooling / heating / power supply system uses natural gas as the main fuel to drive the operation of gas-fired generator sets. The electricity generated meets the user's electrical load, and the system discharges The waste heat is used to provide heating and cooling to users through waste heat utilization equipment; the solar storage micro-grid power generation system uses clean energy to transmit electric energy to the grid during the peak period of electricity consumption, and store electric energy during the low period of electricity consumption, effectively alleviating the power supply pressure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J3/46
CPCY02E10/56Y02E70/30
Inventor 段绍辉姚森敬汪伟
Owner SHENZHEN POWER SUPPLY BUREAU
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