Energy storage equipment power balance control method and system
A technology of power balance and energy storage equipment, applied in the field of electric power system, can solve problems such as grid voltage and frequency imbalance, achieve the effect of wide application range and maintain maximum load capacity
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Embodiment 1
[0028] A power balance control system for energy storage equipment, such as figure 2 As shown, including: energy management server, PCS equipment supporting V / F function, PCS equipment without V / F function;
[0029] The energy management server is used to collect photovoltaic equipment power data, fan equipment power data, generator power data, and PCS equipment power data, to control PCS equipment in real time, and to control PCS equipment, photovoltaic equipment, The power of fan equipment, generators and loads controls the power balance of energy storage equipment to ensure the safety and reliability of the established power grid and the stable operation of loads.
[0030] PCS equipment supporting V / F function can establish an independent power grid.
Embodiment 2
[0032] like figure 1 As shown, a power balance control method of an energy storage device includes the following steps:
[0033] Step 1, according to the PCS power, energy storage capacity, and load power of the energy storage power station, set the power balance control parameters; the power balance control parameters include: PCS power, energy storage capacity, and load power;
[0034] Step 2: The PCS equipment with V / F function establishes an independent power grid, and the voltage and frequency parameters of the power grid can be set through the PCS panel parameter setting menu with V / F function to ensure that the PCS equipment with V / F mode outputs a stable voltage and frequency.
[0035] The energy storage power station has no power output with other networks, such as a power failure, or it is an island itself without any connection with the outside world. PCS equipment with V / F functions can establish an independent power grid.
[0036] The energy management server co...
Embodiment 3
[0042] The following takes the V / F mode PCS equipment as an example to describe the above process in detail:
[0043] Step 1, according to the PCS equipment power, energy storage capacity, and load power of the energy storage power station, set the power balance control parameters;
[0044] Step 2, start the PCS equipment with V / F function, and establish an independent power grid with stable voltage and frequency;
[0045]Step 3. Determine whether there are output devices such as wind power, photovoltaics or generators in the independent grid. If there are output devices in this embodiment, wind power, photovoltaics or generators are put into the independent grid. At this time, the output needs to be controlled. Considering that the energy storage device has the largest The power can be accepted to ensure the stability of the current grid; judge whether the power of the PCS equipment in the entire independent grid meets the load power requirements; if the power provided by the...
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