83. Al-Mutaffifin/The Defrauders
I/We begin by the Blessed Name of Allah
The Immensely Merciful to all, The Infinitely Compassionate to everyone.
83:01
a. Woe to the defrauders,
83:02
a. those who take full measure when they measure against the people,
83:03
a. yet whenever it would be giving the right of others, they reduce the measure for themselves or weigh for themselves.
83:04
a. Do they not realize that they will be resurrected from their graves and held accountable for their cheating -
83:05
a. - during an Awful Time,
83:06
a. - the Time when everyone – all humankind - will stand accountable before Rabb - The Lord of all existence?
83:07
a. They think all will be equal at the Time of Final Judgment.
b. Not at all!
c. The book/record of deeds of the sinful will be preserved in Sijjeen.
83:08
a. And what may enable you to perceive Sijjeen?
83:09
a. It will be repository of a written book.
83:10
a. Woe, that Time, to those who belie -
83:11
a. those who belie persistently the truth of the Time of Final Judgment.
Surah 83 * Al-Mutaffifin 721
83:12
a. And no one can deny it, except every transgressor and sinful.
83:13
a. Whenever OUR Messages from The Qur’an are read out to him, he would rebuke:
b. ‘Fictional tales of an ancient people!’
83:14
a. Of course not!
b. Rather what they have earned has covered their hearts like rust.
According to Qur’an, the difference of opinion among peoples of the world is natural and something that will always be there. However, in order to stop the difference from becoming a conflict, people should hold dialogue. The significance of dialogue in Islam is well understood by the fact that God chose to hold dialogue with angels concerning the creation of man. Furthermore, the Qur’an declares dialogue the greater jihad and arrangement of a successful dialogue is considered as a manifest victory In order to arrange a successful dialogue, Qur’an lays out a number of principles: 1- Dialogue should be held in such a nice way that it may lead the opponent to get a close friend. For this it is necessary to speak mildly and the dialogue must be based on wisdom and sincerity. 2- Dialogue should rest on the principle of mutual respect and should not contain any kind of abusive and taunting language. 3- Dialogue must not override the principle of justice and equality and must not be affected by the past experiences or personal grievances towards the opponent. 4- Dialogue should not address the issue of pulling everyone together, e.g. The opponent (for example a nation) should not be blamed for the evil deeds of few. 5- Dialogue should be held with an attitude that is characterized by patience and tolerance and efforts must be made to keep the vicious elements out from harming the process. 6- Both parties should openly acknowledge and recognize the mutually positive attributes. 7- Imposing one’s opinions upon the opponent must not be the objective of dialogue. 8- Both parties should, despite the inherent difference of opinion, pursue to find practical solutions by striving towards finding a common ground.
Due to increased proliferation of sensitive loads in the distribution network, voltage sags, swells and phase jumps mitigation has become the focus of power quality (PQ) research. This reduces its adverse economical impact. Equipment sensitivity curve shows that small duration outage of one-cycle is tolerable for sensitive loads. Therefore, the control system should be capable for voltage sag detection and mitigation in less than 20 ms at 50 Hz. There are various custom power devices for protecting industrial processes against voltage sags. Due to simple control, fast response and fewer transients; dynamic voltage restorer (DVR) is investigated in this research work. Several voltage-sourced converter (VSC) control strategies for the DVR are proposed to maintain constant load voltage for smooth and clean power delivery to the load. A new leading series voltage injection (LSVI) technique is presented as a first strategy for the mitigation of sag. A mathematical model of LSVI by a DVR for voltage sag mitigation has been developed. Simulation results have been obtained to validate the developed model. Conventionally, distributed generation (DG) source is connected in parallel with utility to share load and export its excess power to utility. A new concept of power export through series connection of DG supported DVR is presented, whose power export capability is managed by magnitude of injected voltage as well as its phase-angle instead of the current. However, the approach for mitigating voltage sag using LSVI scheme is suitable for those locations where the phase-shift in the voltage will not cause any problem. A feed-forward VSC control strategy for the DVR is then presented, based on unipolar SPWM switching strategy. This is a novel but a simple control strategy in which the VSC not only converts DC to AC but also mitigates voltage sags, swells and phase jumps in the utility voltage, acting as power flow controller. Comparison of instantaneous utility voltage and generated three-phase reference voltage is carried out to detect sags, swells and phase jumps in the utility voltage. It then generates appropriate switching signals for the VSC of DVR to mitigate them.With the help of proposed control scheme of DVR, the dynamic capability of DVR increases the sensitive load penetration in the distribution system. LSVI control uses leading series voltage injection technique whereas a feed-forward method of compensation uses in-phase injection to regulate the load voltage. The magnitude of injected DVR voltage is minimal in in-phase injection compensation strategy. However, the presented power export concept is valid only for the LSVI scheme. The simulation for the presented control strategies have been performed using SimPowerSystemsTM tool box of MATLAB®. The proposed control strategies detect utility disturbances and mitigate them within half-cycle against a target of one-cycle. These strategies succeed in keeping load voltage THD limit within 5%.