The invention relates to a piecewise calculation method for a thermal power generating unit peak regulating energy consumption cost. According to the method, force outputting threshold values at different pitch peak stages of the thermal power generating unit are determined according to a nameplate parameter and a unit performance testing of the thermal power generating unit. The peak regulating process of the thermal and power generating unit is divided into three stages based on a running state and an energy consumption character of the thermal power generating unit. Aiming at differences of the running state at different pitch peak stages of the thermal power generating unit and from a point view of benefits of a heat-engine plant, the cost of loss, the additional cost of environment and the cost of oil investment in the thermal power generating unit are calculated on the basis of considering a coal fired energy consumption character, a piecewise function of the thermal power generating unit pitch peak energy consumption cost is constructed, and further a curve of the thermal power generating unit pitch peak energy consumption cost is obtained. The piecewise calculation method for the thermal power generating unit pitch peak energy consumption cost can provide a basis for economic operations of the heat-engine plant.

Piecewise calculation method for thermal power generating unit peak regulating energy consumption cost

The invention discloses a renewable energy peak regulating unit and a method thereof for calculating the peak regulating compensation base value The renewable energy peak regulating unit comprises aboiler, a high-pressure cylinder and the like which are sequentially connected The calculating method of the renewable energy peak regulating unit comprises the steps that the heat consumption rate of a steam turbine generator unit, the efficiency of the boiler, and the power consumption rate of the renewable energy peak regulating unit at the peak regulating load and the lowest load required bygrid-connection are determined; the power supply coal consumption rate of the peak regulating load and the lowest load required by grid-connection of the renewable energy peak regulating unit is determined; the increased power generation cost of the renewable energy peak regulating unit after peak regulating for one hour is determined; the power generation profits of the renewable energy peak regulating unit are determined; the unit power generation utilization hour number, needing to be compensated, of the renewable energy peak regulating unit after peak regulating for one hour is determined;and the base value of the unit power generation utilization hour number for peak regulating compensation of the renewable energy peak regulating unit is determined By determining the base value of peak regulating compensation of the renewable energy peak regulating unit, a reasonable compensation policy is set up to better promote absorption of renewable energy

Renewable energy peak regulating unit and method thereof for calculating peak regulating compensation base value

A power grid technology innovation project standard cost management system comprises technology innovation single project type sorting, single project unit final settlement account arranging, technology innovation single project standard cost management system constitution basic unit determining, power grid technology innovation single project equipment parameter sorting, sample data analyzing and calculating, and technology innovation project standard cost system establishing. On one hand, the system contributes to open and transparent fund utilizing rules, standardizes engineering project management, ensures the engineering quality and prevents the occurrence of such phenomena as money interception and diversion; and on the other hand, technology innovation cost analysis data is enabled to be observable, measurable and traceable, the efficiency and quality of technology innovation project cost evaluation, analysis and prediction are greatly enhanced, and the technology innovation project cost management and control capability is strengthened.

Power grid technology innovation project standard cost management system

The invention discloses a power frequency modulation quotation method based on marginal cost, which comprises the following steps: acquiring frequency modulation target information, historical unit operation information, power supply standard coal consumption information and the like of a power plant unit according to unit parameters of the power plant participating in electric power frequency modulation; screening and cleaning the frequency modulation market transaction information to obtain a frequency modulation market transaction information set of the power plant unit in a historical timeperiod; processing the power generation unit to obtain an average load and/or power supply cost of the power generation unit in a frequency modulation time period; and adjusting the quotation information and/or the power plant unit parameters according to the frequency modulation income. The technical scheme of the invention aims to solve the problem that the power plant in the prior art cannot effectively estimate and manage the actually generated benefit according to the cost expenditure in the power frequency modulation market. By analyzing the frequency modulation information and the non-frequency modulation information in the historical time period of the power plant unit, frequency modulation management can be effectively carried out on the power plant unit.

Power frequency modulation quotation method and system based on marginal cost

The invention discloses an extra-high voltage receiving end power grid peak regulation capacity adequacy judgment method based on a peak regulation coefficient The method comprises the following steps of initializing an extra-high voltage receiving end power grid external power supply, peak shaving rates of various generator sets and starting capacities of the generator sets at all moments; initializing load values and new energy power generation power of the extra-high voltage receiving-end power grid at each moment; calculating a peak regulation coefficient and a normalization processing peak regulation coefficient of the extra-high voltage receiving-end power grid at each moment according to the startup capacity and the peak regulation rate, obtaining an equivalent load value of the extra-high voltage receiving-end power grid according to the load value and the new energy power generation power processing, and further calculating an equivalent load coefficient at each moment; and calculating the deviation between the peak regulation coefficient and the equivalent load coefficient, and judging whether the extra-high voltage receiving-end power grid meets the peak regulation capacity adequacy or not The effects of the extra-high voltage receiving-end power grid external power supply and various generator sets and the influence of the new energy generation power are considered, and the peak regulation capacity adequacy of the extra-high voltage receiving-end power grid can be judged more accurately

Extra-high voltage receiving end power grid peak regulation capability adequacy judgment method based on peak regulation coefficient

The invention discloses a compensation processing system of wind power grid-connection peak shaving service and a running method of the compensation processing system The compensation processing system is characterized by comprising a compensation management module, an opportunity cost management module and an increased cost management module, wherein the compensation management module is respectively in communication connection with the opportunity cost management module and the increased cost management module, and is used for calculating expense of compensation required by the wind power grid-connection peak shaving service, the opportunity cost management module is used for estimating expense of opportunity cost generated when a conventional generating set participates in deep peak shaving and transmitting the estimated expense to the compensation management module, the increased cost management module is used for estimating expense of increased running cost generated when the conventional generating set participates in the deep peak shaving and transmitting the estimated expense to the compensation management module, and the expense of compensation required by the wind power grid-connection peak shaving service is equal to the sum of the expense of the opportunity and the expense of the increased cost By the aid of the compensation processing system, influence of wind power grid-connection peak shaving on a conventional power source is measured scientifically and authentically

Xiaoxia Wei

Papers

Compensation processing system of wind power grid-connection peak shaving service and running method of compensation processing system