Inverter energy recharge simulation power grid test system
A technology of power grid testing and inverters, applied in the direction of measuring electricity, measuring electrical variables, instruments, etc., can solve the problems of power consumption, waste of energy, increase the cost of power supply design, etc., and achieve the effect of reducing energy consumption and saving costs
Inactive Publication Date: 2016-08-24
NINGBO ZHENHAI CALLCHING ELECTRIC TECH
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Problems solved by technology
[0002] In the current market, there are two methods for inverter grid-connected test power supply, "parallel load test scheme" and "bus DC power supply scheme". The parallel load test scheme can test all inverter functions, and the platform test scheme is complete, but in the whole During the test, the load is always in the live working state, and the electric energy generated by the inverter is always consumed by the load, which is a serious waste of energy
In the busbar DC power supply scheme, the input energy of the inverter is taken from the DC busbar of the simulated grid, and the output energy of the inverter is converted into DC through the simulated grid and then supplied to the inverter. Although this avoids the consumption of load energy, the test items are single. Can only do simple functional verification tests on the grid side
Therefore, the existing inverter grid-connected test power supply system can no longer meet people's needs, which not only increases the design cost of the power supply, but also increases the consumption of energy
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[0010] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0011] see figure 1 , the embodiment of the present invention discloses an inverter energy recharge simulation grid test system, including grid-connected inverter test equipment and a DC self-locking power supply, characterized in that the DC self-locking power supply includes a control module 1, a power supply Module 2 and power locking module 3, the power output end of the power module is electrically connected with the power input end of the control module and the power input end of the power locking module respectively, and one output end of the control module is connected with the power supply The control signal input end of the locking modu...
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The invention discloses an inverter energy recharge simulation power grid test system which comprises a grid-connected inverter testing device and a direct-current self-locking power supply. The direct-current self-locking power supply comprises a control module, a power supply module and a power supply locking module, wherein a power supply output end of the power supply module is electrically connected with a power supply input end of the control module and a power supply input end of the power supply locking module; one output end of the control module is electrically connected with a control signal input end of the power supply locking module; and direct current signals output by the grid-connected inverter testing device are converted into alternating current signals which are supplied to the direct-current self-locking power supply. Through the above mode, the inverter energy recharge simulation power grid test system can automatically lock the power supply so that the cost is saved and the energy consumption is reduced.
Description
technical field [0001] The invention relates to an inverter energy recharging simulation power grid testing system. Background technique [0002] In the current market, there are two methods for inverter grid-connected test power supply, "parallel load test scheme" and "bus DC power supply scheme". The parallel load test scheme can test all inverter functions, and the platform test scheme is complete, but in the whole During the test, the load is always in live working state, and the electric energy generated by the inverter is always consumed by the load, which is a serious waste of energy. In the busbar DC power supply scheme, the input energy of the inverter is taken from the DC busbar of the simulated grid, and the output energy of the inverter is converted into DC through the simulated grid and then supplied to the inverter. Although this avoids the consumption of load energy, the test items are single. Only simple function verification tests on the grid side can be do...
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IPC IPC(8): G01R31/00
Inventor 匡小红
Owner NINGBO ZHENHAI CALLCHING ELECTRIC TECH