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A Hybrid Control Method for Inverter Air Conditioner Aggregation Participating in Power System Frequency Regulation

A technology of power system and frequency conversion air conditioner, which is applied in the direction of power network operating system integration, information technology support system, AC network voltage adjustment, etc., to achieve great engineering application value, reduce impact, and reduce frequency fluctuations

Active Publication Date: 2021-01-01
ZHEJIANG UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology lacks the way and method of hybrid control for inverter air conditioners to participate in power system frequency regulation

Method used

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  • A Hybrid Control Method for Inverter Air Conditioner Aggregation Participating in Power System Frequency Regulation
  • A Hybrid Control Method for Inverter Air Conditioner Aggregation Participating in Power System Frequency Regulation
  • A Hybrid Control Method for Inverter Air Conditioner Aggregation Participating in Power System Frequency Regulation

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Embodiment Construction

[0034] Further description will be given below in conjunction with the embodiments and accompanying drawings.

[0035] The specific circumstances of the embodiment implemented according to the complete method of content of the present invention are as follows:

[0036] The capacity of a power system is 800MW, and the rated operating frequency of the power system is 50Hz. There are 30,000 variable frequency air conditioners controllable to provide frequency modulation for the power system. The minimum value of the threshold for frequency conversion air conditioner group to participate in power system frequency regulation is 0.01Hz, the maximum threshold value for inverter air conditioners to participate in power system frequency regulation is 0.03Hz. Proportional adjustment coefficient θ of temperature control of inverter air conditioner i is 0.52, the integral adjustment coefficient η of the inverter air conditioner temperature controli is 0.032, the frequency conversion ...

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Abstract

The present invention disclosed a hybrid control method for frequency frequency air conditioning aggregation to participate in the power system frequency adjustment.According to the frequency deviation of the power system, the compressor speed of the frequency frequency air conditioner is adjusted to provide frequency control control for the power system; when the actual frequency of the power system is lower than the rated frequency, the frequency frequency adjustment control is performed according to the frequency deviation of the power system to reduce the compressor speed speed to reduce the speed of the compressor speedAs a result, the operating power is reduced and the frequency of the power system is adjusted; when the actual frequency of the power system is higher than the rated frequency, the frequency frequency air conditioner is adjusted according to the frequency deviation of the power system to improve the speed of the compressor to improve the operating power, and provide the frequency to the power system to provide the frequency of the power system.Subside; the present invention has great engineering application value for large -scale frequency frequency air conditioners participating in the frequency of power systems.

Description

technical field [0001] The invention relates to a control method for power system frequency regulation, in particular to a hybrid control method for variable frequency air conditioners to aggregate and participate in power system frequency regulation. Background technique [0002] New energy power generation is intermittent, volatile and uncertain, and the increase of new energy on the power generation side brings more challenges to the balance and stability of the power system. In addition, with the increase of extreme high temperature weather in summer and the improvement of people's living standards, the proportion of power consumption of air conditioners on the electricity side continues to increase. In my country, such as Beijing, Jiangsu and other regions, the proportion of power consumption of air conditioners at peak power consumption reaches 40%~ 50%. Facing the two major challenges of the power generation side and the power consumption side, the frequency regulatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/24H02J3/14
CPCH02J3/24H02J3/14H02J2310/14Y04S20/222Y04S20/244Y02B70/30Y02B70/3225
Inventor 丁一惠红勋宋永华
Owner ZHEJIANG UNIV
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