Grid-connected photovoltaic power system Solar energy gathered by photovoltaic solar panels, intended for delivery to a power grid, must be conditioned, or processed for use, by a grid-connected inverter. Fundamentally, an inverter changes the DC input voltage from the PV to AC voltage for the grid. This inverter sits between the solar array and the grid, draws energy from each, and may be a large stand-alone unit or may be a collection of small inverters, each physically attached to individual solar panels. See AC Module. The inverter must monitor grid voltage, waveform, and frequency. One reason for monitoring is if the grid is dead
Support of a module of the vanishing locus of the polynomial. However, since formula_33 is an integral domain, the ideal formula_28 is isomorphic to formula_33 as a module, so its support is the entire space. The support of a module is always closed under specialization. Now, if we take two polynomials formula_36 in an integral domain which form a complete intersection ideal formula_37, the tensor property shows us that Support of a module In commutative algebra, the support of a module "M" over a commutative ring "A" is the set of all prime ideals formula_1 of "A" such that formula_2. It is denoted by