Main report of Electric power Enterprise Information System display

Contents and parameters of the annual report installed

Installed size refers to the power generation capacity of a power plant or regional grid. This form is filled by the power company's shunting center, so the scale of the installed capacity, that is, the company to other power plants or power grid dispatching of the total amount of data, as well as the type of electricity, access voltage level and other specific parameters. Through the different dimensions of these data to arrange the combination, so that users can at a glance grasp of the company's annual power dispatching situation, to find out whether there is such as due to the unit of the relative power plant capacity is insufficient, and must be transferred from the external network to a large number of power, or the power of the dispatch occurs in the province and the following units It shows that the total power gap in this year's network is not big.

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Transmission scale and parameters

The transmission of electricity is referred to as the name implies. The transmission of electric energy has different voltage levels, in which 220-750kv is an ultra-high voltage power grid, which forms the backbone of the large area power grid and the contact line of the large area power grid. The 110-220kv is a transmission network, which forms a complex power grid that transmits electrical energy in various regions. The 35-110kv is a power supply network that is fed from a hub substation to a local substation near the load zone. 10KV is a distribution network, local substation transmission to the residential area of the pole transformer or power distribution room. This table counts the transmission scale and parameters of ehv power grids, that is, how many power lines are used for the current year, and the length of the transmission line. Specific line parameters for power transmission.

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Scale and parameters of power transformer

Electric power transmission refers to the voltage from a high or low to high change, the high-voltage network transmitted electricity must pass through a variety of substation pressure to be used as a residential electricity transmission to residents. Therefore, the amount of electricity involved in the dispatch of the relevant data statistics. Use this table to understand the current year's power changes, whether or not to increase the number of substations/transformers.

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Equipment Overhaul Plan

Annual equipment overhaul plan, by the transfer Center and Production Technology department joint report. The Transfer Center is responsible for the development of the direct adjustment unit overhaul plan, the production Technology department is responsible for the development of transmission lines and substation equipment maintenance plan. The impact on the mode of operation of the power grid in the jurisdiction is found mainly through planned data.

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Decommissioning plan for equipment production

The annual commissioning of various equipment, including power generation equipment and transmission equipment, is developed by the infrastructure Department, which also uses planned data to master the impact of the equipment on the power grid operation.

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Decommissioning of equipment in production

and equipment production decommissioning plan relative equipment production retired actual data, the previous year equipment production decommissioning actual situation, by the Production Technology department is responsible.

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Monthly Electricity Balance Plan

The content includes the expected maximum load, the cross-regional contact line sent to the power, the area of the unit nameplate output, the maximum load of the overhaul capacity, blocked capacity and reason, the maximum adjustable output, reserve capacity, the estimated use of electricity, cross-regional contact lines to send the electricity, the area of the unit capacity; the development of a power balance plan has two One is to help users determine when and where to build the type of power plant, the second is to meet the load demand and achieve a variety of economic indicators, so that the planning period of the power system can be safe operation and investment economy reasonable.

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Grid congestion prediction

transmission network is an important part of power trading. When the branch transmission capacity can not meet the demand of the transaction, or when the system in the generator set, line or transformer components such as failure , may cause some of the transmission element overload , The transmission congestion is generated. Transmission congestion can affect the safety of power grid operation. This table is the dispatch center of the power grid congestion forecast, understand the reason, help the network to take measures to properly distribute power, to avoid congestion.

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Balance of power consumption

corresponding to the power balance plan, the actual power balance of the previous year is submitted.

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Utilization of power generation equipment

Average load rate per unit, peak load daily load rate, minimum load daily load rate, average operating reserve capacity, maximum running reserve capacity, minimum running reserve capacity; "Generation equipment utilization hours" means the average (full load) running time of a generator set in a year; in 8,760 hours per year, The proportion of hours of power generation. Power industry is an asset-intensive industry, deduction of equipment maintenance and other necessary downtime, the higher the power generation hours, equipment created by the higher economic value. Therefore, the utilization of power generation equipment has great influence on investors ' economic benefit, and is also an important index to measure the efficiency of power industry.

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Change of equipment overhaul

The maintenance plan of power generation equipment, the maintenance plan of transmission and transformation equipment and the influence on the operation mode of power network;

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Main transformer exceeding limit of section line

The ultra-stable limit operation of power transmission lines and sections, and the operation of super-control limit of transformers;

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Sustainability of renewable energy

The power of renewable energy plants and the reasons for it; it is a trend to accelerate the development and utilization of renewable energy due to environmental problems such as the limited nature of fossil resources and climate change, but because renewable energies have low power density and intermittent discontinuous problems, It is necessary to take technical measures to solve the problem between the discontinuity of renewable energy generation and the continuity of power demand, and this table mainly collects the power data which is blocked by the Renewable energy power plant, and the reason to make the control decision.

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Equipment failure condition

Master the number of equipment failures, failure time, easy to understand the impact of equipment failure situation on the power grid operation;

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Main Transmission Line trend

The main transmission line is the largest current, average current. Through the relevant data, the normal operation of the system has a comprehensive understanding, on the one hand in the event of an accident can be more accurate judgment, on the other hand in the system is not normal operation of the state can be timely to take effective measures, including the avoidance of a line overload and so on.

Main report of Electric power Enterprise Information System display