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Reactive comprehensive cost model of generator set

A technology of comprehensive cost and generator set, applied in reactive power compensation, reactive power adjustment/elimination/compensation, electrical components, etc., and can solve problems such as related information loss

Inactive Publication Date: 2017-10-17
RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, ignoring variable costs would result in a loss of relevant information

Method used

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  • Reactive comprehensive cost model of generator set
  • Reactive comprehensive cost model of generator set
  • Reactive comprehensive cost model of generator set

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Embodiment Construction

[0031] The reactive power comprehensive cost model of the generator set, the reactive power comprehensive cost function of the generator set is shown in the following formula:

[0032] C Gqi =C q +C opp +C loss ;

[0033] In the formula: C Gqi is the reactive comprehensive cost function of the generator;

[0034] C q is the reactive capacity cost of the generator;

[0035] C opp is the reactive opportunity cost of the generator, which belongs to the reactive power cost of the generator;

[0036] C loss is the reactive power loss cost of the generator, which belongs to the reactive power cost of the generator.

[0037] Usually the investment cost of the generating set is calculated on the basis of active capacity, however, the generating set not only produces active electric energy, but also produces reactive electric energy. Therefore, when calculating the reactive power investment cost, use the relationship between active power, reactive power and apparent power to...

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Abstract

The invention discloses a reactive comprehensive cost model of a generator set. A reactive comprehensive cost function of a generator set is shown as follows: CGqi=Cq+Copp+Closs, wherein the CGqi expresses a reactive comprehensive cost function of a generator, the Cq expresses a reactive capacity cost of the generator, the Copp expresses a reactive opportunity cost of the generator belonging to the reactive electricity cost of the generator, and the Closs expresses a reactive loss cost of the generator, which belongs to the reactive electricity cost of the generator. A reasonable electricity price mechanism is established; with the correct price signal, the transmission field becomes convenient and the economic benefits are increased; and on the basis of reasonable reactive cost and price information, the user of the grid network can make a wise decision. Because of the reasonable reactive distribution, active network loses are reduced; and thus when the reactive power source in the grid carries out reactive balancing well, the system operation efficiency and reliability are improved. And the system voltage level is improved and a problem caused by too high voltage or too low voltage can be solved.

Description

technical field [0001] The invention relates to the technical field of reactive power pricing, in particular to a reactive power comprehensive cost model of a generating set. Background technique [0002] In the power system, reactive power cost is the key to reactive power auxiliary service fees. In order to provide a reasonable reactive power auxiliary service fee to ensure maximum economic benefits, reactive power traders should have a reactive power production cost clear understanding. Reactive power plays a very important supporting role in the transmission of active power. This is especially important when more and more power transactions need to be handled by the transmission system and voltage becomes the bottleneck preventing additional power transmission. In order to support energy trading, it is necessary to ensure that the voltage of the entire power system is maintained at a normal level, and to prevent load reduction in emergency situations, so the amount of ...

Claims

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Application Information

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IPC IPC(8): H02J3/50H02J3/38H02J3/00H02J3/16H02J3/18
CPCH02J3/008H02J3/16H02J3/1885H02J3/381H02J3/50H02J2203/20Y02E40/30
Inventor 田鑫李雪亮牛新生赵龙王艳郑志杰刘晓明付一木魏佳张丽娜高效海王轶群孙东磊杨斌
Owner RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER
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