A generator load self-adaptive adjustment device

Abstract

The invention discloses a generator load self-adaptation adjustment device which comprises a grid side power detector, a generator output power detector, an analog quantity input unit, a processor, a digital quantity output unit and a generator load controller. The grid side power detector is installed between a business power grid and an external power grid, the generator output power detector is installed between a generator and the business power grid, the analog quantity input unit is connected with the two detectors and transmits a read detection numeric value to the processor, and the processor is connected with the analog quantity input unit, compares the numeric value input by the analog quantity input unit with a set value, forms a corresponding control command according to the comparison result and transmits the control command to the numeric quantity input unit. The numeric quantity output unit is connected with the processor and forwards the control command to the generator load controller, and the generator load controller controls rotation speed of the generator according to the control command so that output power of the generator is controlled. According to the device, the self adaptation of the generator load can be achieved so that the purpose that cost is saved is achieved.

Description

technical field [0001] The invention relates to the field of electric power automatic control, in particular to a generator load self-adaptive adjustment device in a self-provided power plant. Background technique [0002] In industrial and mining enterprises such as cement, petrochemical, and steel, the power consumption is relatively large. If the power supply is completely supplied by the external power grid, the production cost of the enterprise will be increased. Purpose. In practical applications, enterprises often establish self-provided power plants while still integrating into external power grids at the same time: when self-provided power plants cannot meet the needs of production and operation of enterprises, external power grids supplement power supply; when self-provided power plants generate more power than enterprises produce When needed for operation, according to the contract conditions signed by each enterprise and the power department, some stipulate that...

AI Technical Summary

Problems solved by technology

[0003] At present, in the self-built power plants of the enterprise, the control of the output power of the generator sets is still manually adjusted, and the next step is carried out by manually recording and comparing the power generation of the self-built generator sets with the actual power consumption of the enterprise's production and operation: When the power generation is less than the actual power consumption, increase the output power of the generator. When the output power is adjusted to the maximum and still cannot meet the power consumption of the enterprise, the insufficient part will be provided by the external network; when the power generation is greater than the actual power consumption, reduce it Generator output power

There are some problems in this adjustment method: firstly, it will increase the labor intensity of the staff and increase the labor cost; secondly, because the electricity demand of the enterprise changes instantaneously, if the adjustment is completely relied on by the operator, the adjustment action will lag behind and fail to achieve In order to meet the purpose of real-time adjustment, and the manual adjustment value is not accurate, in actual operation, in order to give priority to the needs of production and operation of enterprises, operators often reduce the power generation of self-provided power plants and absorb a certain amount of power from external power grids to ensure operation, which wastes the resources of self-provided power plants in vain

Images