Which of the following is NOT a secondary battery?
A. Zinc-carbon batteries
B. Lead-acid batteries
C. Nickel cadmium batteries
D. Lithium-polymer batteries
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Which of the following statements is NOT true regarding the solar inverter topologies?
A. Module level (micro)inverters are better suited to get the maximum power out of each PV module than compared to central inverters, especially when there are partially shaded arrays.
B. String inverters ensure a higher yield than central inverters when there are partially shaded arrays.
C. String inverters ensure a higher yield than module level (micro)inverters when there are partially shaded arrays.
D. Module level (micro)inverters ensure a higher yield than string inverters when there are partially shaded arrays.
Which of the following is NOT a requirement for an ideal solar inverter?
A very high conversion efficiency
B. Detection and prevention capability against islanding
Continuing to supply power to the grid in the event of grid failure
D. A high lifetime
E. In-built MPP Tracking capability
Consider a typical I-V and P-V curve of a solar module as shown in the figure below.a) For any set of irradiance and temperature conditions, the PV module always has the \(P_{mpp} \gt V_{oc} \times I_{sc}\).b) The rest of the conditions remaining the same, if the irradiance falling on the PV module uniformly increases such that the new P-V curve has an MPP at \(P_{mpp}'\), then \(P_{mpp}' \gt P_{mpp}\).c) The rest of the conditions remaining the same, if the irradiance falling on the PV module uniformly increases such that the new P-V curve has an MPP at \(P_{mpp}'\), then \(P_{mpp}' \lt P_{mpp}\).d) For V=\(V_{mpp}\), \(\frac{dP}{dV} = 0\).Which of the above statements are true?
A. a) and b)
B. d) only
C. b) and d)
D. c) and d)
Consider a PV module with the following parameters as measured at STC (Standard Testing Conditions):\(V_{oc}\) = 50 V;\(I_{sc}\) = 4.5 A;\(I_{mpp}\) = 4 A;\(V_{mpp}\) = 40 V;Efficiency = 18%.Suppose that under normal operation at STC conditions, the module is not connected to an MPPT device, and is instead directly connected to a purely resistive, variable load 'R'. The load R can be tuned to give a resistance between 0 to \(1\;k\Omega\). What value of resistance will you keep the load at, if you wish to derive maximum power from the PV module under STC conditions?
A. R = \(11.11\;\Omega\).
B. R = \(10\;\Omega\).
C. R = \(100\;\Omega\).
D. Irrespective of the value R takes, the module can never be made to deliver maximum power under ST