Power supply method and system for reducing power utilization cost of 10KV power utilization enterprise
A technology of electricity cost and power supply method, which is applied in the direction of electrical components, energy industry, circuit devices, etc., and can solve problems such as excessive AC and excessive transformer capacity
Pending Publication Date: 2021-03-19
江西中竹生物质科技有限公司
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Problems solved by technology
In addition, the distribution transformers are arranged in a scattered manner, and each unit works independently. A certain design margin must be considered. If there are too many units, the margin will be too much, and the total transformer capacity of the enterprise will be too large. At the same time, the basic capacity fee will be paid more.
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[0043] Please refer to Figure 1-2 , figure 1 It is a flow chart of a power supply method for reducing the electricity cost of 10KV power consumption enterprises in the present invention; figure 2 It is a power supply system diagram of a power supply method for reducing the electricity cost of a 10KV power consumption enterprise according to the present invention.
[0044] On the one hand, this implementation provides a power supply method for reducing the electricity consumption cost of 10KV power consumption enterprises, including the following steps:
[0045] S1: Obtain the electricity load distribution of each workshop of the target enterprise;
[0046] The power load distribution of each workshop includes:
[0047] The total active power load of the workshop;
[0048] The total reactive power load of the workshop;
[0049] The electrical appliances in the workshop need to be connected to the 10KV high-voltage busbar is a high-voltage load;
[0050] The electrical a...
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The invention discloses a power supply method and system for reducing the power utilization cost of a 10KV power utilization enterprise, and relates to the technical field of enterprise power supply,and the method comprises the steps: carrying out the voltage reduction of a 10KV high-voltage bus, and transmitting the voltage to a 380V / 220V low-voltage bus; and enabling the voltage of the 380V / 220V low-voltage bus to be boosted and then to be transmitted to a high-voltage cable. The system comprises a step-down transformer, a low-voltage power distribution device, a step-up transformer, a high-voltage motor, low-voltage electric equipment and a power supply cable, the working voltage of the high-voltage motor is ensured by taking measures of step-down and then step-up, and the high-voltagemotor does not belong to primary side power receiving equipment at the moment, so that the capacity fee does not need to be charged. The capacity of the parallel step-down transformer is reasonably configured according to the power load distribution condition of an enterprise, and repeated surplus capacity waste of the independent power supply transformer is avoided. Therefore, the expenditure ofbasic capacity cost is greatly saved, and the power cost of enterprises is saved.
Description
technical field [0001] The invention relates to the technical field of power supply for enterprises, in particular to a power supply method and system for reducing the electricity cost of 10KV power consumption enterprises. Background technique [0002] At present, since raw material enterprises widely use high-power high-voltage motors, such as high-voltage 1000KW mills, as primary side receivers (electrical appliances directly connected to high-voltage 10KV high-voltage busbars), high-voltage motors need to charge basic capacity fees, which brings Greater electricity cost pressure. The load of the high-pressure mill varies greatly, the general load factor is not high, and the power configuration is large. Considering the simultaneous working coefficient and demand coefficient of multiple high-voltage motors, the actual total load margin is relatively large, and there is also ample margin in considering the selection of transformers. In addition, the distribution transfor...
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IPC IPC(8): H02J3/00
CPCH02J3/0075Y02P80/10
Inventor 刘洁王安睿郭明泉
Owner 江西中竹生物质科技有限公司