Study on Heat-Load-Based Peak Regulation for Cogeneration Units

doi:10.11930/j.issn.1004-9649.2013.3.59.3

Abstract

Abstract: In northeast China, heat-supply units account for a large proportion in the total installed capacity. In winter heating seasons, the connection of bulk wind power to the power grid makes the peak regulation for valley load very challenging. In order to ease the pressure of winter peak regulation and formulate a reasonable electricity plan, an online monitoring system for heat-load-determined power load is developed. In this system, the boundary conditions of peak load for heat-supply units are determined. By calculating different conditions of the steam turbine, a mathematical model of peak regulation scope under different extraction flows is established with the correction of practical turbine running efficiency and the correction of initial parameters on the output power in consideration. Calculations and experiments have proved the accuracy of the model, which indicates that this method is suitable for the actual operation of the units and can provide guidance for grid companies to make their power transaction plans and peak regulation as well as maximize the accommodation of wind power.

Key words: heat-supply turbine units, peak regulation, power dispatch scope, wind power, power trading

CLC Number:

TM73

WANG Yi, XUE Yong-feng, DENG Nan. Study on Heat-Load-Based Peak Regulation for Cogeneration Units[J]. Electric Power, 2013, 46(3): 59-62.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2013.3.59.3

https://www.electricpower.com.cn/EN/Y2013/V46/I3/59

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